[Qemu-devel] [PATCH v3 00/10] Implement network booting directly into the s390-ccw BIOS

[Qemu-devel] [PATCH v3 00/10] Implement network booting directly into the s390-ccw BIOS

[Thomas Huth]

It's already possible to do a network boot of an s390x guest with an
external netboot image based on a Linux installation, but it would
be much more convenient if the s390-ccw firmware supported network
booting right out of the box, without the need to assemble such an
external image first.

This patch series now introduces a s390-netboot.img that can be used
for network booting via DHCP and TFTP by re-using the networking stack
from the SLOF firmware (see https://github.com/aik/SLOF/ for details),
and adds a driver for virtio-net-ccw devices.

The code can only be built if the roms/SLOF submodule has been checked
out (there is a sanity check for this in the Makefile). Once it has
been built, you can download a combined kernel + initrd image via TFTP
by starting QEMU for example with:

 qemu-system-s390x ... -device virtio-net,netdev=n1,bootindex=1 \
       -netdev user,id=n1,tftp=/path/to/tftp,bootfile=kernel.img

Note that this version does not support downloading via config
files (i.e. pxelinux config files or .INS config files) yet. This
will be added later.

v3:
 - Adressed the review feedback from v2
 - The last remaining SLOF patch has now been merged (big thanks to
   Alexey!), so not sending this as RFC anymore - it is ready now for
   integration, I think.

v2:
 - Put the network boot loader into a separate s390-netboot.img
   binary instead of linking it directly into the s390-ccw firmware.
 - Use the SLOF sources from the roms/SLOF/ submodule instead of
   copying them into the pc-bios/s390-ccw folder
 - Removed the .INS config file loading code for now - only support
   combined kernel + initrd images in this initial implementation.

Thomas Huth (10):
  pc-bios/s390-ccw: Move libc functions to separate header
  pc-bios/s390-ccw: Move ebc2asc to sclp.c
  pc-bios/s390-ccw: Move virtio-block related functions into a separate
    file
  pc-bios/s390-ccw: Add a write() function for stdio
  pc-bios/s390-ccw: Move byteswap functions to a separate header
  pc-bios/s390-ccw: Add code for virtio feature negotiation
  roms/SLOF: Update submodule to latest status
  pc-bios/s390-ccw: Add core files for the network bootloading program
  pc-bios/s390-ccw: Add virtio-net driver code
  pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP
    load

 pc-bios/s390-ccw/Makefile        |  13 +-
 pc-bios/s390-ccw/bootmap.c       |   2 +
 pc-bios/s390-ccw/bootmap.h       |  26 ---
 pc-bios/s390-ccw/bswap.h         |  25 +++
 pc-bios/s390-ccw/libc.h          |  45 +++++
 pc-bios/s390-ccw/main.c          |  14 +-
 pc-bios/s390-ccw/netboot.mak     |  51 ++++++
 pc-bios/s390-ccw/netmain.c       | 365 +++++++++++++++++++++++++++++++++++++++
 pc-bios/s390-ccw/s390-ccw.h      |  33 +---
 pc-bios/s390-ccw/sclp.c          |  37 ++--
 pc-bios/s390-ccw/virtio-blkdev.c | 297 +++++++++++++++++++++++++++++++
 pc-bios/s390-ccw/virtio-net.c    | 133 ++++++++++++++
 pc-bios/s390-ccw/virtio-scsi.c   |   1 +
 pc-bios/s390-ccw/virtio.c        | 306 ++++----------------------------
 pc-bios/s390-ccw/virtio.h        |  18 +-
 roms/SLOF                        |   2 +-
 16 files changed, 1007 insertions(+), 361 deletions(-)
 create mode 100644 pc-bios/s390-ccw/bswap.h
 create mode 100644 pc-bios/s390-ccw/libc.h
 create mode 100644 pc-bios/s390-ccw/netboot.mak
 create mode 100644 pc-bios/s390-ccw/netmain.c
 create mode 100644 pc-bios/s390-ccw/virtio-blkdev.c
 create mode 100644 pc-bios/s390-ccw/virtio-net.c

-- 
1.8.3.1

[Qemu-devel] [PATCH v3 01/10] pc-bios/s390-ccw: Move libc functions to separate header

[Thomas Huth]

The upcoming netboot code will use the libc from SLOF. To be able
to still use s390-ccw.h there, the libc related functions in this
header have to be moved to a different location.
And while we're at it, remove the duplicate memcpy() function from
sclp.c.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/bootmap.c     |  1 +
 pc-bios/s390-ccw/libc.h        | 45 ++++++++++++++++++++++++++++++++++++++++++
 pc-bios/s390-ccw/main.c        |  1 +
 pc-bios/s390-ccw/s390-ccw.h    | 29 ---------------------------
 pc-bios/s390-ccw/sclp.c        | 10 ++--------
 pc-bios/s390-ccw/virtio-scsi.c |  1 +
 pc-bios/s390-ccw/virtio.c      |  1 +
 7 files changed, 51 insertions(+), 37 deletions(-)
 create mode 100644 pc-bios/s390-ccw/libc.h

diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c
index 523fa78..458d3da 100644
--- a/pc-bios/s390-ccw/bootmap.c
+++ b/pc-bios/s390-ccw/bootmap.c
@@ -8,6 +8,7 @@
  * directory.
  */
 
+#include "libc.h"
 #include "s390-ccw.h"
 #include "bootmap.h"
 #include "virtio.h"
diff --git a/pc-bios/s390-ccw/libc.h b/pc-bios/s390-ccw/libc.h
new file mode 100644
index 0000000..6397d67
--- /dev/null
+++ b/pc-bios/s390-ccw/libc.h
@@ -0,0 +1,45 @@
+/*
+ * libc-style definitions and functions
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef S390_CCW_LIBC_H
+#define S390_CCW_LIBC_H
+
+typedef long               size_t;
+typedef int                bool;
+typedef unsigned char      uint8_t;
+typedef unsigned short     uint16_t;
+typedef unsigned int       uint32_t;
+typedef unsigned long long uint64_t;
+
+static inline void *memset(void *s, int c, size_t n)
+{
+    int i;
+    unsigned char *p = s;
+
+    for (i = 0; i < n; i++) {
+        p[i] = c;
+    }
+
+    return s;
+}
+
+static inline void *memcpy(void *s1, const void *s2, size_t len)
+{
+    uint8_t *dest = s1;
+    const uint8_t *src = s2;
+    int i;
+
+    for (i = 0; i < len; i++) {
+        dest[i] = src[i];
+    }
+
+    return s1;
+}
+
+#endif
diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
index 1cacc1b..40cba8d 100644
--- a/pc-bios/s390-ccw/main.c
+++ b/pc-bios/s390-ccw/main.c
@@ -8,6 +8,7 @@
  * directory.
  */
 
+#include "libc.h"
 #include "s390-ccw.h"
 #include "virtio.h"
 
diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
index 2089274..43e2d42 100644
--- a/pc-bios/s390-ccw/s390-ccw.h
+++ b/pc-bios/s390-ccw/s390-ccw.h
@@ -18,12 +18,6 @@ typedef unsigned short     u16;
 typedef unsigned int       u32;
 typedef unsigned long long u64;
 typedef unsigned long      ulong;
-typedef long               size_t;
-typedef int                bool;
-typedef unsigned char      uint8_t;
-typedef unsigned short     uint16_t;
-typedef unsigned int       uint32_t;
-typedef unsigned long long uint64_t;
 typedef unsigned char      __u8;
 typedef unsigned short     __u16;
 typedef unsigned int       __u32;
@@ -88,18 +82,6 @@ ulong get_second(void);
 /* bootmap.c */
 void zipl_load(void);
 
-static inline void *memset(void *s, int c, size_t n)
-{
-    int i;
-    unsigned char *p = s;
-
-    for (i = 0; i < n; i++) {
-        p[i] = c;
-    }
-
-    return s;
-}
-
 static inline void fill_hex(char *out, unsigned char val)
 {
     const char hex[] = "0123456789abcdef";
@@ -169,17 +151,6 @@ static inline void sleep(unsigned int seconds)
     }
 }
 
-static inline void *memcpy(void *s1, const void *s2, size_t n)
-{
-    uint8_t *p1 = s1;
-    const uint8_t *p2 = s2;
-
-    while (n--) {
-        p1[n] = p2[n];
-    }
-    return s1;
-}
-
 static inline void IPL_assert(bool term, const char *message)
 {
     if (!term) {
diff --git a/pc-bios/s390-ccw/sclp.c b/pc-bios/s390-ccw/sclp.c
index a1639ba..aa1c862 100644
--- a/pc-bios/s390-ccw/sclp.c
+++ b/pc-bios/s390-ccw/sclp.c
@@ -8,6 +8,7 @@
  * directory.
  */
 
+#include "libc.h"
 #include "s390-ccw.h"
 #include "sclp.h"
 
@@ -59,13 +60,6 @@ static int _strlen(const char *str)
     return i;
 }
 
-static void _memcpy(char *dest, const char *src, int len)
-{
-    int i;
-    for (i = 0; i < len; i++)
-        dest[i] = src[i];
-}
-
 void sclp_print(const char *str)
 {
     int len = _strlen(str);
@@ -76,7 +70,7 @@ void sclp_print(const char *str)
     sccb->ebh.length = sizeof(EventBufferHeader) + len;
     sccb->ebh.type = SCLP_EVENT_ASCII_CONSOLE_DATA;
     sccb->ebh.flags = 0;
-    _memcpy(sccb->data, str, len);
+    memcpy(sccb->data, str, len);
 
     sclp_service_call(SCLP_CMD_WRITE_EVENT_DATA, sccb);
 }
diff --git a/pc-bios/s390-ccw/virtio-scsi.c b/pc-bios/s390-ccw/virtio-scsi.c
index f61ecf0..c92f5d3 100644
--- a/pc-bios/s390-ccw/virtio-scsi.c
+++ b/pc-bios/s390-ccw/virtio-scsi.c
@@ -9,6 +9,7 @@
  * directory.
  */
 
+#include "libc.h"
 #include "s390-ccw.h"
 #include "virtio.h"
 #include "scsi.h"
diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
index 6ee93d5..8768331 100644
--- a/pc-bios/s390-ccw/virtio.c
+++ b/pc-bios/s390-ccw/virtio.c
@@ -8,6 +8,7 @@
  * directory.
  */
 
+#include "libc.h"
 #include "s390-ccw.h"
 #include "virtio.h"
 #include "virtio-scsi.h"
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 02/10] pc-bios/s390-ccw: Move ebc2asc to sclp.c

[Thomas Huth]

We will later need this array in a file that we will link to the
netboot code, too. Since there is some ebcdic conversion done
in sclp_get_loadparm_ascii(), the sclp.c file seems to be a good
candidate.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/main.c | 11 -----------
 pc-bios/s390-ccw/sclp.c | 11 +++++++++++
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
index 40cba8d..0580eac 100644
--- a/pc-bios/s390-ccw/main.c
+++ b/pc-bios/s390-ccw/main.c
@@ -17,17 +17,6 @@ static SubChannelId blk_schid = { .one = 1 };
 IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE)));
 static char loadparm[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
 
-const unsigned char ebc2asc[256] =
-      /* 0123456789abcdef0123456789abcdef */
-        "................................" /* 1F */
-        "................................" /* 3F */
-        " ...........<(+|&.........!$*);." /* 5F first.chr.here.is.real.space */
-        "-/.........,%_>?.........`:#@'=\""/* 7F */
-        ".abcdefghi.......jklmnopqr......" /* 9F */
-        "..stuvwxyz......................" /* BF */
-        ".ABCDEFGHI.......JKLMNOPQR......" /* DF */
-        "..STUVWXYZ......0123456789......";/* FF */
-
 /*
  * Priniciples of Operations (SA22-7832-09) chapter 17 requires that
  * a subsystem-identification is at 184-187 and bytes 188-191 are zero
diff --git a/pc-bios/s390-ccw/sclp.c b/pc-bios/s390-ccw/sclp.c
index aa1c862..2ee204a 100644
--- a/pc-bios/s390-ccw/sclp.c
+++ b/pc-bios/s390-ccw/sclp.c
@@ -14,6 +14,17 @@
 
 static char _sccb[PAGE_SIZE] __attribute__((__aligned__(4096)));
 
+const unsigned char ebc2asc[256] =
+      /* 0123456789abcdef0123456789abcdef */
+        "................................" /* 1F */
+        "................................" /* 3F */
+        " ...........<(+|&.........!$*);." /* 5F first.chr.here.is.real.space */
+        "-/.........,%_>?.........`:#@'=\""/* 7F */
+        ".abcdefghi.......jklmnopqr......" /* 9F */
+        "..stuvwxyz......................" /* BF */
+        ".ABCDEFGHI.......JKLMNOPQR......" /* DF */
+        "..STUVWXYZ......0123456789......";/* FF */
+
 /* Perform service call. Return 0 on success, non-zero otherwise. */
 static int sclp_service_call(unsigned int command, void *sccb)
 {
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 03/10] pc-bios/s390-ccw: Move virtio-block related functions into a separate file

[Thomas Huth]

The netboot code is going to link against the code from virtio.c, too, so
we've got to move the virtio-block and -scsi related code out of the way.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/Makefile        |   2 +-
 pc-bios/s390-ccw/main.c          |   2 +-
 pc-bios/s390-ccw/s390-ccw.h      |   2 +-
 pc-bios/s390-ccw/virtio-blkdev.c | 296 +++++++++++++++++++++++++++++++++++++++
 pc-bios/s390-ccw/virtio.c        | 273 +-----------------------------------
 pc-bios/s390-ccw/virtio.h        |   4 +
 6 files changed, 307 insertions(+), 272 deletions(-)
 create mode 100644 pc-bios/s390-ccw/virtio-blkdev.c

diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
index fb88c13..82b41ef 100644
--- a/pc-bios/s390-ccw/Makefile
+++ b/pc-bios/s390-ccw/Makefile
@@ -9,7 +9,7 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw)
 
 .PHONY : all clean build-all
 
-OBJECTS = start.o main.o bootmap.o sclp.o virtio.o virtio-scsi.o
+OBJECTS = start.o main.o bootmap.o sclp.o virtio.o virtio-scsi.o virtio-blkdev.o
 QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS))
 QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float
 QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing
diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
index 0580eac..401e9db 100644
--- a/pc-bios/s390-ccw/main.c
+++ b/pc-bios/s390-ccw/main.c
@@ -144,7 +144,7 @@ static void virtio_setup(void)
         sclp_print("Network boot device detected\n");
         vdev->netboot_start_addr = iplb.ccw.netboot_start_addr;
     } else {
-        virtio_setup_device(blk_schid);
+        virtio_blk_setup_device(blk_schid);
 
         IPL_assert(virtio_ipl_disk_is_valid(), "No valid IPL device detected");
     }
diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
index 43e2d42..6fdc858 100644
--- a/pc-bios/s390-ccw/s390-ccw.h
+++ b/pc-bios/s390-ccw/s390-ccw.h
@@ -74,7 +74,7 @@ void sclp_get_loadparm_ascii(char *loadparm);
 unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
                                  ulong subchan_id, void *load_addr);
 bool virtio_is_supported(SubChannelId schid);
-void virtio_setup_device(SubChannelId schid);
+void virtio_blk_setup_device(SubChannelId schid);
 int virtio_read(ulong sector, void *load_addr);
 int enable_mss_facility(void);
 ulong get_second(void);
diff --git a/pc-bios/s390-ccw/virtio-blkdev.c b/pc-bios/s390-ccw/virtio-blkdev.c
new file mode 100644
index 0000000..6cb77bc
--- /dev/null
+++ b/pc-bios/s390-ccw/virtio-blkdev.c
@@ -0,0 +1,296 @@
+/*
+ * Virtio driver bits
+ *
+ * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
+ * your option) any later version. See the COPYING file in the top-level
+ * directory.
+ */
+
+#include "libc.h"
+#include "s390-ccw.h"
+#include "virtio.h"
+#include "virtio-scsi.h"
+
+static int virtio_blk_read_many(VDev *vdev,
+                                ulong sector, void *load_addr, int sec_num)
+{
+    VirtioBlkOuthdr out_hdr;
+    u8 status;
+    VRing *vr = &vdev->vrings[vdev->cmd_vr_idx];
+
+    /* Tell the host we want to read */
+    out_hdr.type = VIRTIO_BLK_T_IN;
+    out_hdr.ioprio = 99;
+    out_hdr.sector = virtio_sector_adjust(sector);
+
+    vring_send_buf(vr, &out_hdr, sizeof(out_hdr), VRING_DESC_F_NEXT);
+
+    /* This is where we want to receive data */
+    vring_send_buf(vr, load_addr, virtio_get_block_size() * sec_num,
+                   VRING_DESC_F_WRITE | VRING_HIDDEN_IS_CHAIN |
+                   VRING_DESC_F_NEXT);
+
+    /* status field */
+    vring_send_buf(vr, &status, sizeof(u8),
+                   VRING_DESC_F_WRITE | VRING_HIDDEN_IS_CHAIN);
+
+    /* Now we can tell the host to read */
+    vring_wait_reply();
+
+    if (drain_irqs(vr->schid)) {
+        /* Well, whatever status is supposed to contain... */
+        status = 1;
+    }
+    return status;
+}
+
+int virtio_read_many(ulong sector, void *load_addr, int sec_num)
+{
+    VDev *vdev = virtio_get_device();
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        return virtio_blk_read_many(vdev, sector, load_addr, sec_num);
+    case VIRTIO_ID_SCSI:
+        return virtio_scsi_read_many(vdev, sector, load_addr, sec_num);
+    }
+    panic("\n! No readable IPL device !\n");
+    return -1;
+}
+
+unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
+                                 ulong subchan_id, void *load_addr)
+{
+    u8 status;
+    int sec = rec_list1;
+    int sec_num = ((rec_list2 >> 32) & 0xffff) + 1;
+    int sec_len = rec_list2 >> 48;
+    ulong addr = (ulong)load_addr;
+
+    if (sec_len != virtio_get_block_size()) {
+        return -1;
+    }
+
+    sclp_print(".");
+    status = virtio_read_many(sec, (void *)addr, sec_num);
+    if (status) {
+        panic("I/O Error");
+    }
+    addr += sec_num * virtio_get_block_size();
+
+    return addr;
+}
+
+int virtio_read(ulong sector, void *load_addr)
+{
+    return virtio_read_many(sector, load_addr, 1);
+}
+
+/*
+ * Other supported value pairs, if any, would need to be added here.
+ * Note: head count is always 15.
+ */
+static inline u8 virtio_eckd_sectors_for_block_size(int size)
+{
+    switch (size) {
+    case 512:
+        return 49;
+    case 1024:
+        return 33;
+    case 2048:
+        return 21;
+    case 4096:
+        return 12;
+    }
+    return 0;
+}
+
+VirtioGDN virtio_guessed_disk_nature(void)
+{
+    return virtio_get_device()->guessed_disk_nature;
+}
+
+void virtio_assume_scsi(void)
+{
+    VDev *vdev = virtio_get_device();
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        vdev->guessed_disk_nature = VIRTIO_GDN_SCSI;
+        vdev->config.blk.blk_size = VIRTIO_SCSI_BLOCK_SIZE;
+        vdev->config.blk.physical_block_exp = 0;
+        vdev->blk_factor = 1;
+        break;
+    case VIRTIO_ID_SCSI:
+        vdev->scsi_block_size = VIRTIO_SCSI_BLOCK_SIZE;
+        break;
+    }
+}
+
+void virtio_assume_iso9660(void)
+{
+    VDev *vdev = virtio_get_device();
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        vdev->guessed_disk_nature = VIRTIO_GDN_SCSI;
+        vdev->config.blk.blk_size = VIRTIO_ISO_BLOCK_SIZE;
+        vdev->config.blk.physical_block_exp = 0;
+        vdev->blk_factor = VIRTIO_ISO_BLOCK_SIZE / VIRTIO_SECTOR_SIZE;
+        break;
+    case VIRTIO_ID_SCSI:
+        vdev->scsi_block_size = VIRTIO_ISO_BLOCK_SIZE;
+        break;
+    }
+}
+
+void virtio_assume_eckd(void)
+{
+    VDev *vdev = virtio_get_device();
+
+    vdev->guessed_disk_nature = VIRTIO_GDN_DASD;
+    vdev->blk_factor = 1;
+    vdev->config.blk.physical_block_exp = 0;
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        vdev->config.blk.blk_size = 4096;
+        break;
+    case VIRTIO_ID_SCSI:
+        vdev->config.blk.blk_size = vdev->scsi_block_size;
+        break;
+    }
+    vdev->config.blk.geometry.heads = 15;
+    vdev->config.blk.geometry.sectors =
+        virtio_eckd_sectors_for_block_size(vdev->config.blk.blk_size);
+}
+
+bool virtio_disk_is_scsi(void)
+{
+    VDev *vdev = virtio_get_device();
+
+    if (vdev->guessed_disk_nature == VIRTIO_GDN_SCSI) {
+        return true;
+    }
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        return (vdev->config.blk.geometry.heads == 255)
+            && (vdev->config.blk.geometry.sectors == 63)
+            && (virtio_get_block_size()  == VIRTIO_SCSI_BLOCK_SIZE);
+    case VIRTIO_ID_SCSI:
+        return true;
+    }
+    return false;
+}
+
+bool virtio_disk_is_eckd(void)
+{
+    VDev *vdev = virtio_get_device();
+    const int block_size = virtio_get_block_size();
+
+    if (vdev->guessed_disk_nature == VIRTIO_GDN_DASD) {
+        return true;
+    }
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        return (vdev->config.blk.geometry.heads == 15)
+            && (vdev->config.blk.geometry.sectors ==
+                virtio_eckd_sectors_for_block_size(block_size));
+    case VIRTIO_ID_SCSI:
+        return false;
+    }
+    return false;
+}
+
+bool virtio_ipl_disk_is_valid(void)
+{
+    return virtio_disk_is_scsi() || virtio_disk_is_eckd();
+}
+
+int virtio_get_block_size(void)
+{
+    VDev *vdev = virtio_get_device();
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        return vdev->config.blk.blk_size << vdev->config.blk.physical_block_exp;
+    case VIRTIO_ID_SCSI:
+        return vdev->scsi_block_size;
+    }
+    return 0;
+}
+
+uint8_t virtio_get_heads(void)
+{
+    VDev *vdev = virtio_get_device();
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        return vdev->config.blk.geometry.heads;
+    case VIRTIO_ID_SCSI:
+        return vdev->guessed_disk_nature == VIRTIO_GDN_DASD
+               ? vdev->config.blk.geometry.heads : 255;
+    }
+    return 0;
+}
+
+uint8_t virtio_get_sectors(void)
+{
+    VDev *vdev = virtio_get_device();
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        return vdev->config.blk.geometry.sectors;
+    case VIRTIO_ID_SCSI:
+        return vdev->guessed_disk_nature == VIRTIO_GDN_DASD
+               ? vdev->config.blk.geometry.sectors : 63;
+    }
+    return 0;
+}
+
+uint64_t virtio_get_blocks(void)
+{
+    VDev *vdev = virtio_get_device();
+    const uint64_t factor = virtio_get_block_size() / VIRTIO_SECTOR_SIZE;
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        return vdev->config.blk.capacity / factor;
+    case VIRTIO_ID_SCSI:
+        return vdev->scsi_last_block / factor;
+    }
+    return 0;
+}
+
+void virtio_blk_setup_device(SubChannelId schid)
+{
+    VDev *vdev = virtio_get_device();
+
+    vdev->schid = schid;
+    virtio_setup_ccw(vdev);
+
+    switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_BLOCK:
+        sclp_print("Using virtio-blk.\n");
+        if (!virtio_ipl_disk_is_valid()) {
+            /* make sure all getters but blocksize return 0 for
+             * invalid IPL disk
+             */
+            memset(&vdev->config.blk, 0, sizeof(vdev->config.blk));
+            virtio_assume_scsi();
+        }
+        break;
+    case VIRTIO_ID_SCSI:
+        IPL_assert(vdev->config.scsi.sense_size == VIRTIO_SCSI_SENSE_SIZE,
+            "Config: sense size mismatch");
+        IPL_assert(vdev->config.scsi.cdb_size == VIRTIO_SCSI_CDB_SIZE,
+            "Config: CDB size mismatch");
+
+        sclp_print("Using virtio-scsi.\n");
+        virtio_scsi_setup(vdev);
+        break;
+    default:
+        panic("\n! No IPL device available !\n");
+    }
+}
diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
index 8768331..09ab291 100644
--- a/pc-bios/s390-ccw/virtio.c
+++ b/pc-bios/s390-ccw/virtio.c
@@ -70,7 +70,7 @@ static long virtio_notify(SubChannelId schid, int vq_idx, long cookie)
  *             Virtio functions                *
  ***********************************************/
 
-static int drain_irqs(SubChannelId schid)
+int drain_irqs(SubChannelId schid)
 {
     Irb irb = {};
     int r = 0;
@@ -155,7 +155,7 @@ static bool vring_notify(VRing *vr)
     return vr->cookie >= 0;
 }
 
-static void vring_send_buf(VRing *vr, void *p, int len, int flags)
+void vring_send_buf(VRing *vr, void *p, int len, int flags)
 {
     /* For follow-up chains we need to keep the first entry point */
     if (!(flags & VRING_HIDDEN_IS_CHAIN)) {
@@ -210,7 +210,7 @@ static int vr_poll(VRing *vr)
  *
  * Returns 0 on success, 1 on timeout.
  */
-static int vring_wait_reply(void)
+int vring_wait_reply(void)
 {
     ulong target_second = get_second() + vdev.wait_reply_timeout;
 
@@ -247,242 +247,7 @@ int virtio_run(VDev *vdev, int vqid, VirtioCmd *cmd)
     return 0;
 }
 
-/***********************************************
- *               Virtio block                  *
- ***********************************************/
-
-static int virtio_blk_read_many(VDev *vdev,
-                                ulong sector, void *load_addr, int sec_num)
-{
-    VirtioBlkOuthdr out_hdr;
-    u8 status;
-    VRing *vr = &vdev->vrings[vdev->cmd_vr_idx];
-
-    /* Tell the host we want to read */
-    out_hdr.type = VIRTIO_BLK_T_IN;
-    out_hdr.ioprio = 99;
-    out_hdr.sector = virtio_sector_adjust(sector);
-
-    vring_send_buf(vr, &out_hdr, sizeof(out_hdr), VRING_DESC_F_NEXT);
-
-    /* This is where we want to receive data */
-    vring_send_buf(vr, load_addr, virtio_get_block_size() * sec_num,
-                   VRING_DESC_F_WRITE | VRING_HIDDEN_IS_CHAIN |
-                   VRING_DESC_F_NEXT);
-
-    /* status field */
-    vring_send_buf(vr, &status, sizeof(u8),
-                   VRING_DESC_F_WRITE | VRING_HIDDEN_IS_CHAIN);
-
-    /* Now we can tell the host to read */
-    vring_wait_reply();
-
-    if (drain_irqs(vr->schid)) {
-        /* Well, whatever status is supposed to contain... */
-        status = 1;
-    }
-    return status;
-}
-
-int virtio_read_many(ulong sector, void *load_addr, int sec_num)
-{
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        return virtio_blk_read_many(&vdev, sector, load_addr, sec_num);
-    case VIRTIO_ID_SCSI:
-        return virtio_scsi_read_many(&vdev, sector, load_addr, sec_num);
-    }
-    panic("\n! No readable IPL device !\n");
-    return -1;
-}
-
-unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
-                                 ulong subchan_id, void *load_addr)
-{
-    u8 status;
-    int sec = rec_list1;
-    int sec_num = ((rec_list2 >> 32) & 0xffff) + 1;
-    int sec_len = rec_list2 >> 48;
-    ulong addr = (ulong)load_addr;
-
-    if (sec_len != virtio_get_block_size()) {
-        return -1;
-    }
-
-    sclp_print(".");
-    status = virtio_read_many(sec, (void *)addr, sec_num);
-    if (status) {
-        panic("I/O Error");
-    }
-    addr += sec_num * virtio_get_block_size();
-
-    return addr;
-}
-
-int virtio_read(ulong sector, void *load_addr)
-{
-    return virtio_read_many(sector, load_addr, 1);
-}
-
-/*
- * Other supported value pairs, if any, would need to be added here.
- * Note: head count is always 15.
- */
-static inline u8 virtio_eckd_sectors_for_block_size(int size)
-{
-    switch (size) {
-    case 512:
-        return 49;
-    case 1024:
-        return 33;
-    case 2048:
-        return 21;
-    case 4096:
-        return 12;
-    }
-    return 0;
-}
-
-VirtioGDN virtio_guessed_disk_nature(void)
-{
-    return vdev.guessed_disk_nature;
-}
-
-void virtio_assume_scsi(void)
-{
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        vdev.guessed_disk_nature = VIRTIO_GDN_SCSI;
-        vdev.config.blk.blk_size = VIRTIO_SCSI_BLOCK_SIZE;
-        vdev.config.blk.physical_block_exp = 0;
-        vdev.blk_factor = 1;
-        break;
-    case VIRTIO_ID_SCSI:
-        vdev.scsi_block_size = VIRTIO_SCSI_BLOCK_SIZE;
-        break;
-    }
-}
-
-void virtio_assume_iso9660(void)
-{
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        vdev.guessed_disk_nature = VIRTIO_GDN_SCSI;
-        vdev.config.blk.blk_size = VIRTIO_ISO_BLOCK_SIZE;
-        vdev.config.blk.physical_block_exp = 0;
-        vdev.blk_factor = VIRTIO_ISO_BLOCK_SIZE / VIRTIO_SECTOR_SIZE;
-        break;
-    case VIRTIO_ID_SCSI:
-        vdev.scsi_block_size = VIRTIO_ISO_BLOCK_SIZE;
-        break;
-    }
-}
-
-void virtio_assume_eckd(void)
-{
-    vdev.guessed_disk_nature = VIRTIO_GDN_DASD;
-    vdev.blk_factor = 1;
-    vdev.config.blk.physical_block_exp = 0;
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        vdev.config.blk.blk_size = 4096;
-        break;
-    case VIRTIO_ID_SCSI:
-        vdev.config.blk.blk_size = vdev.scsi_block_size;
-        break;
-    }
-    vdev.config.blk.geometry.heads = 15;
-    vdev.config.blk.geometry.sectors =
-        virtio_eckd_sectors_for_block_size(vdev.config.blk.blk_size);
-}
-
-bool virtio_disk_is_scsi(void)
-{
-    if (vdev.guessed_disk_nature == VIRTIO_GDN_SCSI) {
-        return true;
-    }
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        return (vdev.config.blk.geometry.heads == 255)
-            && (vdev.config.blk.geometry.sectors == 63)
-            && (virtio_get_block_size()  == VIRTIO_SCSI_BLOCK_SIZE);
-    case VIRTIO_ID_SCSI:
-        return true;
-    }
-    return false;
-}
-
-bool virtio_disk_is_eckd(void)
-{
-    const int block_size = virtio_get_block_size();
-
-    if (vdev.guessed_disk_nature == VIRTIO_GDN_DASD) {
-        return true;
-    }
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        return (vdev.config.blk.geometry.heads == 15)
-            && (vdev.config.blk.geometry.sectors ==
-                virtio_eckd_sectors_for_block_size(block_size));
-    case VIRTIO_ID_SCSI:
-        return false;
-    }
-    return false;
-}
-
-bool virtio_ipl_disk_is_valid(void)
-{
-    return virtio_disk_is_scsi() || virtio_disk_is_eckd();
-}
-
-int virtio_get_block_size(void)
-{
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        return vdev.config.blk.blk_size << vdev.config.blk.physical_block_exp;
-    case VIRTIO_ID_SCSI:
-        return vdev.scsi_block_size;
-    }
-    return 0;
-}
-
-uint8_t virtio_get_heads(void)
-{
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        return vdev.config.blk.geometry.heads;
-    case VIRTIO_ID_SCSI:
-        return vdev.guessed_disk_nature == VIRTIO_GDN_DASD
-               ? vdev.config.blk.geometry.heads : 255;
-    }
-    return 0;
-}
-
-uint8_t virtio_get_sectors(void)
-{
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        return vdev.config.blk.geometry.sectors;
-    case VIRTIO_ID_SCSI:
-        return vdev.guessed_disk_nature == VIRTIO_GDN_DASD
-               ? vdev.config.blk.geometry.sectors : 63;
-    }
-    return 0;
-}
-
-uint64_t virtio_get_blocks(void)
-{
-    const uint64_t factor = virtio_get_block_size() / VIRTIO_SECTOR_SIZE;
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        return vdev.config.blk.capacity / factor;
-    case VIRTIO_ID_SCSI:
-        return vdev.scsi_last_block / factor;
-    }
-    return 0;
-}
-
-static void virtio_setup_ccw(VDev *vdev)
+void virtio_setup_ccw(VDev *vdev)
 {
     int i, cfg_size = 0;
     unsigned char status = VIRTIO_CONFIG_S_DRIVER_OK;
@@ -544,36 +309,6 @@ static void virtio_setup_ccw(VDev *vdev)
         "Could not write status to host");
 }
 
-void virtio_setup_device(SubChannelId schid)
-{
-    vdev.schid = schid;
-    virtio_setup_ccw(&vdev);
-
-    switch (vdev.senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        sclp_print("Using virtio-blk.\n");
-        if (!virtio_ipl_disk_is_valid()) {
-            /* make sure all getters but blocksize return 0 for
-             * invalid IPL disk
-             */
-            memset(&vdev.config.blk, 0, sizeof(vdev.config.blk));
-            virtio_assume_scsi();
-        }
-        break;
-    case VIRTIO_ID_SCSI:
-        IPL_assert(vdev.config.scsi.sense_size == VIRTIO_SCSI_SENSE_SIZE,
-            "Config: sense size mismatch");
-        IPL_assert(vdev.config.scsi.cdb_size == VIRTIO_SCSI_CDB_SIZE,
-            "Config: CDB size mismatch");
-
-        sclp_print("Using virtio-scsi.\n");
-        virtio_scsi_setup(&vdev);
-        break;
-    default:
-        panic("\n! No IPL device available !\n");
-    }
-}
-
 bool virtio_is_supported(SubChannelId schid)
 {
     vdev.schid = schid;
diff --git a/pc-bios/s390-ccw/virtio.h b/pc-bios/s390-ccw/virtio.h
index 1eaf865..d743919 100644
--- a/pc-bios/s390-ccw/virtio.h
+++ b/pc-bios/s390-ccw/virtio.h
@@ -291,6 +291,10 @@ struct VirtioCmd {
 };
 typedef struct VirtioCmd VirtioCmd;
 
+int drain_irqs(SubChannelId schid);
+void vring_send_buf(VRing *vr, void *p, int len, int flags);
+int vring_wait_reply(void);
 int virtio_run(VDev *vdev, int vqid, VirtioCmd *cmd);
+void virtio_setup_ccw(VDev *vdev);
 
 #endif /* VIRTIO_H */
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 04/10] pc-bios/s390-ccw: Add a write() function for stdio

[Thomas Huth]

The stdio functions from the SLOF libc need a write() function for
printing text to stdout/stderr. Let's implement this function by
refactoring the code from sclp_print().

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/sclp.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/pc-bios/s390-ccw/sclp.c b/pc-bios/s390-ccw/sclp.c
index 2ee204a..f6466db 100644
--- a/pc-bios/s390-ccw/sclp.c
+++ b/pc-bios/s390-ccw/sclp.c
@@ -12,6 +12,8 @@
 #include "s390-ccw.h"
 #include "sclp.h"
 
+long write(int fd, const void *buf, size_t len);
+
 static char _sccb[PAGE_SIZE] __attribute__((__aligned__(4096)));
 
 const unsigned char ebc2asc[256] =
@@ -71,11 +73,14 @@ static int _strlen(const char *str)
     return i;
 }
 
-void sclp_print(const char *str)
+long write(int fd, const void *str, size_t len)
 {
-    int len = _strlen(str);
     WriteEventData *sccb = (void *)_sccb;
 
+    if (fd != 1 && fd != 2) {
+        return -EIO;
+    }
+
     sccb->h.length = sizeof(WriteEventData) + len;
     sccb->h.function_code = SCLP_FC_NORMAL_WRITE;
     sccb->ebh.length = sizeof(EventBufferHeader) + len;
@@ -84,6 +89,13 @@ void sclp_print(const char *str)
     memcpy(sccb->data, str, len);
 
     sclp_service_call(SCLP_CMD_WRITE_EVENT_DATA, sccb);
+
+    return len;
+}
+
+void sclp_print(const char *str)
+{
+    write(1, str, _strlen(str));
 }
 
 void sclp_get_loadparm_ascii(char *loadparm)
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 05/10] pc-bios/s390-ccw: Move byteswap functions to a separate header

[Thomas Huth]

We'll need them in code that is not related to bootmap.h, so
they should reside in an independent header.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/bootmap.c |  1 +
 pc-bios/s390-ccw/bootmap.h | 26 --------------------------
 pc-bios/s390-ccw/bswap.h   | 25 +++++++++++++++++++++++++
 3 files changed, 26 insertions(+), 26 deletions(-)
 create mode 100644 pc-bios/s390-ccw/bswap.h

diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c
index 458d3da..67a6123 100644
--- a/pc-bios/s390-ccw/bootmap.c
+++ b/pc-bios/s390-ccw/bootmap.c
@@ -12,6 +12,7 @@
 #include "s390-ccw.h"
 #include "bootmap.h"
 #include "virtio.h"
+#include "bswap.h"
 
 #ifdef DEBUG
 /* #define DEBUG_FALLBACK */
diff --git a/pc-bios/s390-ccw/bootmap.h b/pc-bios/s390-ccw/bootmap.h
index 7f36782..cf99a4c 100644
--- a/pc-bios/s390-ccw/bootmap.h
+++ b/pc-bios/s390-ccw/bootmap.h
@@ -324,32 +324,6 @@ static inline int _memcmp(const void *s1, const void *s2, size_t n)
     return 0;
 }
 
-/* from include/qemu/bswap.h */
-
-/* El Torito is always little-endian */
-static inline uint16_t bswap16(uint16_t x)
-{
-    return ((x & 0x00ff) << 8) | ((x & 0xff00) >> 8);
-}
-
-static inline uint32_t bswap32(uint32_t x)
-{
-    return ((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) <<  8) |
-           ((x & 0x00ff0000U) >>  8) | ((x & 0xff000000U) >> 24);
-}
-
-static inline uint64_t bswap64(uint64_t x)
-{
-    return ((x & 0x00000000000000ffULL) << 56) |
-           ((x & 0x000000000000ff00ULL) << 40) |
-           ((x & 0x0000000000ff0000ULL) << 24) |
-           ((x & 0x00000000ff000000ULL) <<  8) |
-           ((x & 0x000000ff00000000ULL) >>  8) |
-           ((x & 0x0000ff0000000000ULL) >> 24) |
-           ((x & 0x00ff000000000000ULL) >> 40) |
-           ((x & 0xff00000000000000ULL) >> 56);
-}
-
 static inline uint32_t iso_733_to_u32(uint64_t x)
 {
     return (uint32_t)x;
diff --git a/pc-bios/s390-ccw/bswap.h b/pc-bios/s390-ccw/bswap.h
new file mode 100644
index 0000000..45b5ef4
--- /dev/null
+++ b/pc-bios/s390-ccw/bswap.h
@@ -0,0 +1,25 @@
+
+/* from include/qemu/bswap.h */
+
+static inline uint16_t bswap16(uint16_t x)
+{
+    return ((x & 0x00ff) << 8) | ((x & 0xff00) >> 8);
+}
+
+static inline uint32_t bswap32(uint32_t x)
+{
+    return ((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) <<  8) |
+           ((x & 0x00ff0000U) >>  8) | ((x & 0xff000000U) >> 24);
+}
+
+static inline uint64_t bswap64(uint64_t x)
+{
+    return ((x & 0x00000000000000ffULL) << 56) |
+           ((x & 0x000000000000ff00ULL) << 40) |
+           ((x & 0x0000000000ff0000ULL) << 24) |
+           ((x & 0x00000000ff000000ULL) <<  8) |
+           ((x & 0x000000ff00000000ULL) >>  8) |
+           ((x & 0x0000ff0000000000ULL) >> 24) |
+           ((x & 0x00ff000000000000ULL) >> 40) |
+           ((x & 0xff00000000000000ULL) >> 56);
+}
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 06/10] pc-bios/s390-ccw: Add code for virtio feature negotiation

[Thomas Huth]

The upcoming virtio-net driver needs to negotiate some features,
so we need the possibility to do this in the core virtio code.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/s390-ccw.h      |  2 ++
 pc-bios/s390-ccw/virtio-blkdev.c |  3 ++-
 pc-bios/s390-ccw/virtio.c        | 25 ++++++++++++++++++-------
 pc-bios/s390-ccw/virtio.h        |  2 +-
 4 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
index 6fdc858..25d4d21 100644
--- a/pc-bios/s390-ccw/s390-ccw.h
+++ b/pc-bios/s390-ccw/s390-ccw.h
@@ -44,6 +44,8 @@ typedef unsigned long long __u64;
                             ((b) == 0 ? (a) : (MIN(a, b))))
 #endif
 
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
 #include "cio.h"
 #include "iplb.h"
 
diff --git a/pc-bios/s390-ccw/virtio-blkdev.c b/pc-bios/s390-ccw/virtio-blkdev.c
index 6cb77bc..ed4026f 100644
--- a/pc-bios/s390-ccw/virtio-blkdev.c
+++ b/pc-bios/s390-ccw/virtio-blkdev.c
@@ -266,9 +266,10 @@ uint64_t virtio_get_blocks(void)
 void virtio_blk_setup_device(SubChannelId schid)
 {
     VDev *vdev = virtio_get_device();
+    uint32_t guestfeats[2] = { 0, 0 };
 
     vdev->schid = schid;
-    virtio_setup_ccw(vdev);
+    virtio_setup_ccw(vdev, guestfeats);
 
     switch (vdev->senseid.cu_model) {
     case VIRTIO_ID_BLOCK:
diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
index 09ab291..e3dcfd3 100644
--- a/pc-bios/s390-ccw/virtio.c
+++ b/pc-bios/s390-ccw/virtio.c
@@ -12,6 +12,7 @@
 #include "s390-ccw.h"
 #include "virtio.h"
 #include "virtio-scsi.h"
+#include "bswap.h"
 
 #define VRING_WAIT_REPLY_TIMEOUT 3
 
@@ -247,10 +248,14 @@ int virtio_run(VDev *vdev, int vqid, VirtioCmd *cmd)
     return 0;
 }
 
-void virtio_setup_ccw(VDev *vdev)
+void virtio_setup_ccw(VDev *vdev, uint32_t guestfeats[2])
 {
-    int i, cfg_size = 0;
+    int i, rc, cfg_size = 0;
     unsigned char status = VIRTIO_CONFIG_S_DRIVER_OK;
+    struct VirtioFeatureDesc {
+        uint32_t features;
+        uint8_t index;
+    } __attribute__((packed)) feats;
 
     IPL_assert(virtio_is_supported(vdev->schid), "PE");
     /* device ID has been established now */
@@ -277,11 +282,17 @@ void virtio_setup_ccw(VDev *vdev)
     IPL_assert(run_ccw(vdev, CCW_CMD_READ_CONF, &vdev->config, cfg_size) == 0,
                "Could not get block device configuration");
 
-    /*
-     * Skipping CCW_CMD_READ_FEAT. We're not doing anything fancy, and
-     * we'll just stop dead anyway if anything does not work like we
-     * expect it.
-     */
+    /* Feature negotiation */
+    for (i = 0; i < ARRAY_SIZE(guestfeats); i++) {
+        feats.features = 0;
+        feats.index = i;
+        rc = run_ccw(vdev, CCW_CMD_READ_FEAT, &feats, sizeof(feats));
+        IPL_assert(rc == 0, "Could not get features bits");
+        guestfeats[i] &= bswap32(feats.features);
+        feats.features = bswap32(guestfeats[i]);
+        rc = run_ccw(vdev, CCW_CMD_WRITE_FEAT, &feats, sizeof(feats));
+        IPL_assert(rc == 0, "Could not set features bits");
+    }
 
     for (i = 0; i < vdev->nr_vqs; i++) {
         VqInfo info = {
diff --git a/pc-bios/s390-ccw/virtio.h b/pc-bios/s390-ccw/virtio.h
index d743919..e3d7150 100644
--- a/pc-bios/s390-ccw/virtio.h
+++ b/pc-bios/s390-ccw/virtio.h
@@ -295,6 +295,6 @@ int drain_irqs(SubChannelId schid);
 void vring_send_buf(VRing *vr, void *p, int len, int flags);
 int vring_wait_reply(void);
 int virtio_run(VDev *vdev, int vqid, VirtioCmd *cmd);
-void virtio_setup_ccw(VDev *vdev);
+void virtio_setup_ccw(VDev *vdev, uint32_t guestfeats[2]);
 
 #endif /* VIRTIO_H */
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 07/10] roms/SLOF: Update submodule to latest status

[Thomas Huth]

We need the latest fixes for building the libc and libnet
of SLOF for the s390-ccw network bootloader firmware.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 roms/SLOF | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/roms/SLOF b/roms/SLOF
index 66d250e..834113a 160000
--- a/roms/SLOF
+++ b/roms/SLOF
@@ -1 +1 @@
-Subproject commit 66d250ef0fd06bb88b7399b9563b5008201f2d63
+Subproject commit 834113a1c67d6fb53dea153c3313d182238f2d36
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 08/10] pc-bios/s390-ccw: Add core files for the network bootloading program

[Thomas Huth]

This is just a preparation for the next steps: Add a makefile and a
stripped down copy of pc-bios/s390-ccw/main.c as a basis for the network
bootloader program, linked against the libc from SLOF already (which we
will need for SLOF's libnet). The networking code is not included yet.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/Makefile    |  11 +++-
 pc-bios/s390-ccw/netboot.mak |  41 +++++++++++++
 pc-bios/s390-ccw/netmain.c   | 140 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 190 insertions(+), 2 deletions(-)
 create mode 100644 pc-bios/s390-ccw/netboot.mak
 create mode 100644 pc-bios/s390-ccw/netmain.c

diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
index 82b41ef..cbae745 100644
--- a/pc-bios/s390-ccw/Makefile
+++ b/pc-bios/s390-ccw/Makefile
@@ -16,7 +16,7 @@ QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing
 QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector)
 LDFLAGS += -Wl,-pie -nostdlib
 
-build-all: s390-ccw.img
+build-all: s390-ccw.img s390-netboot.img
 
 s390-ccw.elf: $(OBJECTS)
 	$(call quiet-command,$(CC) $(LDFLAGS) -o $@ $(OBJECTS),"BUILD","$(TARGET_DIR)$@")
@@ -28,5 +28,12 @@ s390-ccw.img: s390-ccw.elf
 
 $(OBJECTS): Makefile
 
+ifneq ($(wildcard $(SRC_PATH)/roms/SLOF/lib/libnet),)
+include $(SRC_PATH)/pc-bios/s390-ccw/netboot.mak
+else
+s390-netboot.img:
+	@echo "s390-netboot.img not built since roms/SLOF/ is not available."
+endif
+
 clean:
-	rm -f *.o *.d *.img *.elf *~
+	$(RM) *.o *.d *.img *.elf *~ *.a
diff --git a/pc-bios/s390-ccw/netboot.mak b/pc-bios/s390-ccw/netboot.mak
new file mode 100644
index 0000000..1eaa0d8
--- /dev/null
+++ b/pc-bios/s390-ccw/netboot.mak
@@ -0,0 +1,41 @@
+
+SLOF_DIR := $(SRC_PATH)/roms/SLOF
+
+NETOBJS := start.o sclp.o virtio.o netmain.o sbrk.o libc.a
+
+LIBC_INC := -I$(SLOF_DIR)/lib/libc/include
+LIBNET_INC := -I$(SLOF_DIR)/lib/libnet
+
+NETLDFLAGS := $(LDFLAGS) -Ttext=0x7800000
+
+$(NETOBJS): CFLAGS += $(LIBC_INC) $(LIBNET_INC)
+
+s390-netboot.elf: $(NETOBJS)
+	$(call quiet-command,$(CC) $(NETLDFLAGS) -o $@ $(NETOBJS),"BUILD","$(TARGET_DIR)$@")
+
+s390-netboot.img: s390-netboot.elf
+	$(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,"STRIP","$(TARGET_DIR)$@")
+
+
+LIBCCMNDIR = $(SLOF_DIR)/lib/libc
+STRINGCMNDIR = $(LIBCCMNDIR)/string
+CTYPECMNDIR = $(LIBCCMNDIR)/ctype
+STDLIBCMNDIR = $(LIBCCMNDIR)/stdlib
+STDIOCMNDIR = $(LIBCCMNDIR)/stdio
+
+include $(STRINGCMNDIR)/Makefile.inc
+include $(CTYPECMNDIR)/Makefile.inc
+include $(STDLIBCMNDIR)/Makefile.inc
+include $(STDIOCMNDIR)/Makefile.inc
+
+STDIO_OBJS = sprintf.o vfprintf.o vsnprintf.o vsprintf.o fprintf.o \
+	     printf.o putc.o puts.o putchar.o stdchnls.o fileno.o
+
+LIBCOBJS := $(STRING_OBJS) $(CTYPE_OBJS) $(STDLIB_OBJS) $(STDIO_OBJS)
+$(LIBCOBJS): CFLAGS += $(LIBC_INC) $(QEMU_CFLAGS)
+
+libc.a: $(LIBCOBJS)
+	$(call quiet-command,$(AR) -rc $@ $^,"AR","$(TARGET_DIR)$@")
+
+sbrk.o: $(SLOF_DIR)/slof/sbrk.c
+	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(LIBC_INC) -c -o $@ $<,"CC","$(TARGET_DIR)$@")
diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
new file mode 100644
index 0000000..fcdd7a1
--- /dev/null
+++ b/pc-bios/s390-ccw/netmain.c
@@ -0,0 +1,140 @@
+/*
+ * S390 virtio-ccw network boot loading program
+ *
+ * Copyright 2017 Thomas Huth, Red Hat Inc.
+ *
+ * Based on the S390 virtio-ccw loading program (main.c)
+ * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#include "s390-ccw.h"
+#include "virtio.h"
+
+extern char _start[];
+
+char stack[PAGE_SIZE * 8] __attribute__((aligned(PAGE_SIZE)));
+IplParameterBlock iplb __attribute__((aligned(PAGE_SIZE)));
+
+static SubChannelId blk_schid = { .one = 1 };
+static uint64_t dest_timer;
+
+static uint64_t get_timer_ms(void)
+{
+    uint64_t clk;
+
+    asm volatile(" stck %0 " : : "Q"(clk) : "memory");
+
+    /* Bit 51 is incrememented each microsecond */
+    return (clk >> (63 - 51)) / 1000;
+}
+
+void set_timer(int val)
+{
+    dest_timer = get_timer_ms() + val;
+}
+
+int get_timer(void)
+{
+    return dest_timer - get_timer_ms();
+}
+
+int get_sec_ticks(void)
+{
+    return 1000;    /* number of ticks in 1 second */
+}
+
+void panic(const char *string)
+{
+    sclp_print(string);
+    for (;;) {
+        disabled_wait();
+    }
+}
+
+static bool find_dev(Schib *schib, int dev_no)
+{
+    int i, r;
+
+    for (i = 0; i < 0x10000; i++) {
+        blk_schid.sch_no = i;
+        r = stsch_err(blk_schid, schib);
+        if (r == 3 || r == -EIO) {
+            break;
+        }
+        if (!schib->pmcw.dnv) {
+            continue;
+        }
+        if (!virtio_is_supported(blk_schid)) {
+            continue;
+        }
+        /* Skip net devices since no IPLB is created and therefore no
+         * no network bootloader has been loaded
+         */
+        if (virtio_get_device_type() == VIRTIO_ID_NET && dev_no < 0) {
+            continue;
+        }
+        if (dev_no < 0 || schib->pmcw.dev == dev_no) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+static void virtio_setup(void)
+{
+    Schib schib;
+    int ssid;
+    bool found = false;
+    uint16_t dev_no;
+
+    /*
+     * We unconditionally enable mss support. In every sane configuration,
+     * this will succeed; and even if it doesn't, stsch_err() can deal
+     * with the consequences.
+     */
+    enable_mss_facility();
+
+    if (store_iplb(&iplb)) {
+        IPL_assert(iplb.pbt == S390_IPL_TYPE_CCW, "IPL_TYPE_CCW expected");
+        dev_no = iplb.ccw.devno;
+        debug_print_int("device no. ", dev_no);
+        blk_schid.ssid = iplb.ccw.ssid & 0x3;
+        debug_print_int("ssid ", blk_schid.ssid);
+        found = find_dev(&schib, dev_no);
+    } else {
+        for (ssid = 0; ssid < 0x3; ssid++) {
+            blk_schid.ssid = ssid;
+            found = find_dev(&schib, -1);
+            if (found) {
+                break;
+            }
+        }
+    }
+
+    IPL_assert(found && virtio_get_device_type() == VIRTIO_ID_NET,
+               "No virtio net device found");
+}
+
+void main(void)
+{
+    sclp_setup();
+    sclp_print("Network boot starting...\n");
+
+    virtio_setup();
+
+    panic("Failed to load OS from network\n");
+}
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 09/10] pc-bios/s390-ccw: Add virtio-net driver code

[Thomas Huth]

The driver provides the recv() and send() functions which will
be required by SLOF's libnet code for receiving and sending
packets.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/netboot.mak  |   2 +-
 pc-bios/s390-ccw/virtio-net.c | 133 ++++++++++++++++++++++++++++++++++++++++++
 pc-bios/s390-ccw/virtio.c     |   9 ++-
 pc-bios/s390-ccw/virtio.h     |  14 ++++-
 4 files changed, 153 insertions(+), 5 deletions(-)
 create mode 100644 pc-bios/s390-ccw/virtio-net.c

diff --git a/pc-bios/s390-ccw/netboot.mak b/pc-bios/s390-ccw/netboot.mak
index 1eaa0d8..dd9119a 100644
--- a/pc-bios/s390-ccw/netboot.mak
+++ b/pc-bios/s390-ccw/netboot.mak
@@ -1,7 +1,7 @@
 
 SLOF_DIR := $(SRC_PATH)/roms/SLOF
 
-NETOBJS := start.o sclp.o virtio.o netmain.o sbrk.o libc.a
+NETOBJS := start.o sclp.o virtio.o virtio-net.o netmain.o sbrk.o libc.a
 
 LIBC_INC := -I$(SLOF_DIR)/lib/libc/include
 LIBNET_INC := -I$(SLOF_DIR)/lib/libnet
diff --git a/pc-bios/s390-ccw/virtio-net.c b/pc-bios/s390-ccw/virtio-net.c
new file mode 100644
index 0000000..804e7af
--- /dev/null
+++ b/pc-bios/s390-ccw/virtio-net.c
@@ -0,0 +1,133 @@
+/*
+ * Virtio-net driver for the s390-ccw firmware
+ *
+ * Copyright 2017 Thomas Huth, Red Hat Inc.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <ethernet.h>
+#include "s390-ccw.h"
+#include "virtio.h"
+
+#ifndef DEBUG_VIRTIO_NET
+#define DEBUG_VIRTIO_NET 0
+#endif
+
+#define VIRTIO_NET_F_MAC_BIT  (1 << 5)
+
+#define VQ_RX 0         /* Receive queue */
+#define VQ_TX 1         /* Transmit queue */
+
+struct VirtioNetHdr {
+    uint8_t flags;
+    uint8_t gso_type;
+    uint16_t hdr_len;
+    uint16_t gso_size;
+    uint16_t csum_start;
+    uint16_t csum_offset;
+    /*uint16_t num_buffers;*/ /* Only with VIRTIO_NET_F_MRG_RXBUF or VIRTIO1 */
+};
+typedef struct VirtioNetHdr VirtioNetHdr;
+
+static uint16_t rx_last_idx;  /* Last index in receive queue "used" ring */
+
+int virtio_net_init(void *mac_addr)
+{
+    VDev *vdev = virtio_get_device();
+    VRing *rxvq = &vdev->vrings[VQ_RX];
+    uint32_t guestfeats[2] = { VIRTIO_NET_F_MAC_BIT, 0 };
+    void *buf;
+    int i;
+
+    virtio_setup_ccw(vdev, guestfeats);
+
+    memcpy(mac_addr, vdev->config.net.mac, ETH_ALEN);
+
+    for (i = 0; i < 64; i++) {
+        buf = malloc(ETH_MTU_SIZE + sizeof(VirtioNetHdr));
+        IPL_assert(buf != NULL, "Can not allocate memory for receive buffers");
+        vring_send_buf(rxvq, buf, ETH_MTU_SIZE + sizeof(VirtioNetHdr),
+                       VRING_DESC_F_WRITE);
+    }
+    vring_notify(rxvq);
+
+    return 0;
+}
+
+int send(int fd, const void *buf, int len, int flags)
+{
+    VirtioNetHdr tx_hdr;
+    VDev *vdev = virtio_get_device();
+    VRing *txvq = &vdev->vrings[VQ_TX];
+
+    /* Set up header - we do not use anything special, so simply clear it */
+    memset(&tx_hdr, 0, sizeof(tx_hdr));
+
+    vring_send_buf(txvq, &tx_hdr, sizeof(tx_hdr), VRING_DESC_F_NEXT);
+    vring_send_buf(txvq, (void *)buf, len, VRING_HIDDEN_IS_CHAIN);
+    while (!vr_poll(txvq)) {
+        yield();
+    }
+    if (drain_irqs(txvq->schid)) {
+        puts("send: drain irqs failed");
+        return -1;
+    }
+
+    return len;
+}
+
+int recv(int fd, void *buf, int maxlen, int flags)
+{
+    VDev *vdev = virtio_get_device();
+    VRing *rxvq = &vdev->vrings[VQ_RX];
+    int len, id;
+    uint8_t *pkt;
+
+    if (rx_last_idx == rxvq->used->idx) {
+        return 0;
+    }
+
+    len = rxvq->used->ring[rx_last_idx % rxvq->num].len - sizeof(VirtioNetHdr);
+    if (len > maxlen) {
+        puts("virtio-net: Receive buffer too small");
+        len = maxlen;
+    }
+    id = rxvq->used->ring[rx_last_idx % rxvq->num].id % rxvq->num;
+    pkt = (uint8_t *)(rxvq->desc[id].addr + sizeof(VirtioNetHdr));
+
+#if DEBUG_VIRTIO_NET   /* Dump packet */
+    int i;
+    printf("\nbuf %p: len=%i\n", (void *)rxvq->desc[id].addr, len);
+    for (i = 0; i < 64; i++) {
+        printf(" %02x", pkt[i]);
+        if ((i % 16) == 15) {
+            printf("\n");
+        }
+    }
+    printf("\n");
+#endif
+
+    /* Copy data to destination buffer */
+    memcpy(buf, pkt, len);
+
+    /* Mark buffer as available to the host again */
+    rxvq->avail->ring[rxvq->avail->idx % rxvq->num] = id;
+    rxvq->avail->idx = rxvq->avail->idx + 1;
+    vring_notify(rxvq);
+
+    /* Move index to next entry */
+    rx_last_idx = rx_last_idx + 1;
+
+    return len;
+}
diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
index e3dcfd3..4cd70df 100644
--- a/pc-bios/s390-ccw/virtio.c
+++ b/pc-bios/s390-ccw/virtio.c
@@ -150,7 +150,7 @@ static void vring_init(VRing *vr, VqInfo *info)
     debug_print_addr("init vr", vr);
 }
 
-static bool vring_notify(VRing *vr)
+bool vring_notify(VRing *vr)
 {
     vr->cookie = virtio_notify(vr->schid, vr->id, vr->cookie);
     return vr->cookie >= 0;
@@ -189,7 +189,7 @@ ulong get_second(void)
     return (get_clock() >> 12) / 1000000;
 }
 
-static int vr_poll(VRing *vr)
+int vr_poll(VRing *vr)
 {
     if (vr->used->idx == vr->used_idx) {
         vring_notify(vr);
@@ -266,6 +266,11 @@ void virtio_setup_ccw(VDev *vdev, uint32_t guestfeats[2])
     run_ccw(vdev, CCW_CMD_VDEV_RESET, NULL, 0);
 
     switch (vdev->senseid.cu_model) {
+    case VIRTIO_ID_NET:
+        vdev->nr_vqs = 2;
+        vdev->cmd_vr_idx = 0;
+        cfg_size = sizeof(vdev->config.net);
+        break;
     case VIRTIO_ID_BLOCK:
         vdev->nr_vqs = 1;
         vdev->cmd_vr_idx = 0;
diff --git a/pc-bios/s390-ccw/virtio.h b/pc-bios/s390-ccw/virtio.h
index e3d7150..c81af23 100644
--- a/pc-bios/s390-ccw/virtio.h
+++ b/pc-bios/s390-ccw/virtio.h
@@ -11,8 +11,6 @@
 #ifndef VIRTIO_H
 #define VIRTIO_H
 
-#include "s390-ccw.h"
-
 /* Status byte for guest to report progress, and synchronize features. */
 /* We have seen device and processed generic fields (VIRTIO_CONFIG_F_VIRTIO) */
 #define VIRTIO_CONFIG_S_ACKNOWLEDGE     1
@@ -254,6 +252,13 @@ struct ScsiDevice {
 };
 typedef struct ScsiDevice ScsiDevice;
 
+struct VirtioNetConfig {
+    uint8_t mac[6];
+    /* uint16_t status; */               /* Only with VIRTIO_NET_F_STATUS */
+    /* uint16_t max_virtqueue_pairs; */  /* Only with VIRTIO_NET_F_MQ */
+};
+typedef struct VirtioNetConfig VirtioNetConfig;
+
 struct VDev {
     int nr_vqs;
     VRing *vrings;
@@ -266,6 +271,7 @@ struct VDev {
     union {
         VirtioBlkConfig blk;
         VirtioScsiConfig scsi;
+        VirtioNetConfig net;
     } config;
     ScsiDevice *scsi_device;
     bool is_cdrom;
@@ -291,10 +297,14 @@ struct VirtioCmd {
 };
 typedef struct VirtioCmd VirtioCmd;
 
+bool vring_notify(VRing *vr);
 int drain_irqs(SubChannelId schid);
 void vring_send_buf(VRing *vr, void *p, int len, int flags);
+int vr_poll(VRing *vr);
 int vring_wait_reply(void);
 int virtio_run(VDev *vdev, int vqid, VirtioCmd *cmd);
 void virtio_setup_ccw(VDev *vdev, uint32_t guestfeats[2]);
 
+int virtio_net_init(void *mac_addr);
+
 #endif /* VIRTIO_H */
-- 
1.8.3.1

[Qemu-devel] [PATCH v3 10/10] pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP load

[Thomas Huth]

Most of the code has been taken from SLOF's netload.c file. Now we
can finally load an image via TFTP and execute the downloaded kernel.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 pc-bios/s390-ccw/netboot.mak |  12 ++-
 pc-bios/s390-ccw/netmain.c   | 225 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 236 insertions(+), 1 deletion(-)

diff --git a/pc-bios/s390-ccw/netboot.mak b/pc-bios/s390-ccw/netboot.mak
index dd9119a..8c54b05 100644
--- a/pc-bios/s390-ccw/netboot.mak
+++ b/pc-bios/s390-ccw/netboot.mak
@@ -1,7 +1,7 @@
 
 SLOF_DIR := $(SRC_PATH)/roms/SLOF
 
-NETOBJS := start.o sclp.o virtio.o virtio-net.o netmain.o sbrk.o libc.a
+NETOBJS := start.o sclp.o virtio.o virtio-net.o netmain.o sbrk.o libnet.a libc.a
 
 LIBC_INC := -I$(SLOF_DIR)/lib/libc/include
 LIBNET_INC := -I$(SLOF_DIR)/lib/libnet
@@ -39,3 +39,13 @@ libc.a: $(LIBCOBJS)
 
 sbrk.o: $(SLOF_DIR)/slof/sbrk.c
 	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(LIBC_INC) -c -o $@ $<,"CC","$(TARGET_DIR)$@")
+
+LIBNETOBJS := args.o dhcp.o dns.o icmpv6.o ipv6.o tcp.o udp.o bootp.o \
+	      dhcpv6.o ethernet.o ipv4.o ndp.o tftp.o
+LIBNETCFLAGS :=  $(QEMU_CFLAGS) $(LIBC_INC) $(LIBNET_INC)
+
+%.o : $(SLOF_DIR)/lib/libnet/%.c
+	$(call quiet-command,$(CC) $(LIBNETCFLAGS) -c -o $@ $<,"CC","$(TARGET_DIR)$@")
+
+libnet.a: $(LIBNETOBJS)
+	$(call quiet-command,$(AR) -rc $@ $^,"AR","$(TARGET_DIR)$@")
diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
index fcdd7a1..ba0ccb3 100644
--- a/pc-bios/s390-ccw/netmain.c
+++ b/pc-bios/s390-ccw/netmain.c
@@ -6,6 +6,9 @@
  * Based on the S390 virtio-ccw loading program (main.c)
  * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
  *
+ * And based on the network loading code from SLOF (netload.c)
+ * Copyright (c) 2004, 2008 IBM Corporation
+ *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
  * Free Software Foundation; either version 2 of the License, or (at your
@@ -18,17 +21,29 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+
+#include <tftp.h>
+#include <ethernet.h>
+#include <dhcp.h>
+#include <dhcpv6.h>
+#include <ipv4.h>
+#include <ipv6.h>
+#include <dns.h>
 #include <time.h>
 
 #include "s390-ccw.h"
 #include "virtio.h"
 
+#define DEFAULT_BOOT_RETRIES 10
+#define DEFAULT_TFTP_RETRIES 20
+
 extern char _start[];
 
 char stack[PAGE_SIZE * 8] __attribute__((aligned(PAGE_SIZE)));
 IplParameterBlock iplb __attribute__((aligned(PAGE_SIZE)));
 
 static SubChannelId blk_schid = { .one = 1 };
+static int ip_version = 4;
 static uint64_t dest_timer;
 
 static uint64_t get_timer_ms(void)
@@ -56,6 +71,208 @@ int get_sec_ticks(void)
     return 1000;    /* number of ticks in 1 second */
 }
 
+/**
+ * Obtain IP and configuration info from DHCP server (either IPv4 or IPv6).
+ * @param  fn_ip     contains the following configuration information:
+ *                   client MAC, client IP, TFTP-server MAC, TFTP-server IP,
+ *                   boot file name
+ * @param  retries   Number of DHCP attempts
+ * @return           0 : IP and configuration info obtained;
+ *                   non-0 : error condition occurred.
+ */
+static int dhcp(struct filename_ip *fn_ip, int retries)
+{
+    int i = retries + 1;
+    int rc = -1;
+
+    printf("  Requesting information via DHCP:     ");
+
+    dhcpv4_generate_transaction_id();
+    dhcpv6_generate_transaction_id();
+
+    do {
+        printf("\b\b\b%03d", i - 1);
+        if (!--i) {
+            printf("\nGiving up after %d DHCP requests\n", retries);
+            return -1;
+        }
+        ip_version = 4;
+        rc = dhcpv4(NULL, fn_ip);
+        if (rc == -1) {
+            ip_version = 6;
+            set_ipv6_address(fn_ip->fd, 0);
+            rc = dhcpv6(NULL, fn_ip);
+            if (rc == 0) {
+                memcpy(&fn_ip->own_ip6, get_ipv6_address(), 16);
+                break;
+            }
+        }
+        if (rc != -1) {    /* either success or non-dhcp failure */
+            break;
+        }
+    } while (1);
+    printf("\b\b\b\bdone\n");
+
+    return rc;
+}
+
+/**
+ * Seed the random number generator with our mac and current timestamp
+ */
+static void seed_rng(uint8_t mac[])
+{
+    uint64_t seed;
+
+    asm volatile(" stck %0 " : : "Q"(seed) : "memory");
+    seed ^= (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5];
+    srand(seed);
+}
+
+static int tftp_load(filename_ip_t *fnip, void *buffer, int len,
+                     unsigned int retries, int ip_vers)
+{
+    tftp_err_t tftp_err;
+    int rc;
+
+    rc = tftp(fnip, buffer, len, retries, &tftp_err, 1, 1428, ip_vers);
+
+    if (rc > 0) {
+        printf("  TFTP: Received %s (%d KBytes)\n", fnip->filename,
+               rc / 1024);
+    } else if (rc == -1) {
+        puts("unknown TFTP error");
+    } else if (rc == -2) {
+        printf("TFTP buffer of %d bytes is too small for %s\n",
+            len, fnip->filename);
+    } else if (rc == -3) {
+        printf("file not found: %s\n", fnip->filename);
+    } else if (rc == -4) {
+        puts("TFTP access violation");
+    } else if (rc == -5) {
+        puts("illegal TFTP operation");
+    } else if (rc == -6) {
+        puts("unknown TFTP transfer ID");
+    } else if (rc == -7) {
+        puts("no such TFTP user");
+    } else if (rc == -8) {
+        puts("TFTP blocksize negotiation failed");
+    } else if (rc == -9) {
+        puts("file exceeds maximum TFTP transfer size");
+    } else if (rc <= -10 && rc >= -15) {
+        const char *icmp_err_str;
+        switch (rc) {
+        case -ICMP_NET_UNREACHABLE - 10:
+            icmp_err_str = "net unreachable";
+            break;
+        case -ICMP_HOST_UNREACHABLE - 10:
+            icmp_err_str = "host unreachable";
+            break;
+        case -ICMP_PROTOCOL_UNREACHABLE - 10:
+            icmp_err_str = "protocol unreachable";
+            break;
+        case -ICMP_PORT_UNREACHABLE - 10:
+            icmp_err_str = "port unreachable";
+            break;
+        case -ICMP_FRAGMENTATION_NEEDED - 10:
+            icmp_err_str = "fragmentation needed and DF set";
+            break;
+        case -ICMP_SOURCE_ROUTE_FAILED - 10:
+            icmp_err_str = "source route failed";
+            break;
+        default:
+            icmp_err_str = " UNKNOWN";
+            break;
+        }
+        printf("ICMP ERROR \"%s\"\n", icmp_err_str);
+    } else if (rc == -40) {
+        printf("TFTP error occurred after %d bad packets received",
+            tftp_err.bad_tftp_packets);
+    } else if (rc == -41) {
+        printf("TFTP error occurred after missing %d responses",
+            tftp_err.no_packets);
+    } else if (rc == -42) {
+        printf("TFTP error missing block %d, expected block was %d",
+            tftp_err.blocks_missed,
+            tftp_err.blocks_received);
+    }
+
+    return rc;
+}
+
+static int net_load(char *buffer, int len)
+{
+    filename_ip_t fn_ip;
+    uint8_t mac[6];
+    int rc;
+
+    memset(&fn_ip, 0, sizeof(filename_ip_t));
+
+    rc = virtio_net_init(mac);
+    if (rc < 0) {
+        puts("Could not initialize network device");
+        return -101;
+    }
+    fn_ip.fd = rc;
+
+    printf("  Using MAC address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+
+    set_mac_address(mac);    /* init ethernet layer */
+    seed_rng(mac);
+
+    rc = dhcp(&fn_ip, DEFAULT_BOOT_RETRIES);
+    if (rc >= 0) {
+        if (ip_version == 4) {
+            set_ipv4_address(fn_ip.own_ip);
+        }
+    } else {
+        puts("Could not get IP address");
+        return -101;
+    }
+
+    if (ip_version == 4) {
+        printf("  Using IPv4 address: %d.%d.%d.%d\n",
+              (fn_ip.own_ip >> 24) & 0xFF, (fn_ip.own_ip >> 16) & 0xFF,
+              (fn_ip.own_ip >>  8) & 0xFF, fn_ip.own_ip & 0xFF);
+    } else if (ip_version == 6) {
+        char ip6_str[40];
+        ipv6_to_str(fn_ip.own_ip6.addr, ip6_str);
+        printf("  Using IPv6 address: %s\n", ip6_str);
+    }
+
+    if (rc == -2) {
+        printf("ARP request to TFTP server (%d.%d.%d.%d) failed\n",
+               (fn_ip.server_ip >> 24) & 0xFF, (fn_ip.server_ip >> 16) & 0xFF,
+               (fn_ip.server_ip >>  8) & 0xFF, fn_ip.server_ip & 0xFF);
+        return -102;
+    }
+    if (rc == -4 || rc == -3) {
+        puts("Can't obtain TFTP server IP address");
+        return -107;
+    }
+
+    if (ip_version == 4) {
+        printf("  Requesting file \"%s\" via TFTP from %d.%d.%d.%d\n",
+               fn_ip.filename,
+               (fn_ip.server_ip >> 24) & 0xFF, (fn_ip.server_ip >> 16) & 0xFF,
+               (fn_ip.server_ip >>  8) & 0xFF, fn_ip.server_ip & 0xFF);
+    } else if (ip_version == 6) {
+        char ip6_str[40];
+        printf("  Requesting file \"%s\" via TFTP from ", fn_ip.filename);
+        ipv6_to_str(fn_ip.server_ip6.addr, ip6_str);
+        printf("%s\n", ip6_str);
+    }
+
+    /* Do the TFTP load and print error message if necessary */
+    rc = tftp_load(&fn_ip, buffer, len, DEFAULT_TFTP_RETRIES, ip_version);
+
+    if (ip_version == 4) {
+        dhcp_send_release(fn_ip.fd);
+    }
+
+    return rc;
+}
+
 void panic(const char *string)
 {
     sclp_print(string);
@@ -131,10 +348,18 @@ static void virtio_setup(void)
 
 void main(void)
 {
+    int rc;
+
     sclp_setup();
     sclp_print("Network boot starting...\n");
 
     virtio_setup();
 
+    rc = net_load(NULL, (long)_start);
+    if (rc > 0) {
+        sclp_print("Network loading done, starting kernel...\n");
+        asm volatile (" lpsw 0(%0) " : : "r"(0) : "memory");
+    }
+
     panic("Failed to load OS from network\n");
 }
-- 
1.8.3.1

Re: [Qemu-devel] [PATCH v3 05/10] pc-bios/s390-ccw: Move byteswap functions to a separate header

[Christian Borntraeger]

On 07/10/2017 05:32 PM, Thomas Huth wrote:
> We'll need them in code that is not related to bootmap.h, so
> they should reside in an independent header.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>

> ---
>  pc-bios/s390-ccw/bootmap.c |  1 +
>  pc-bios/s390-ccw/bootmap.h | 26 --------------------------
>  pc-bios/s390-ccw/bswap.h   | 25 +++++++++++++++++++++++++
>  3 files changed, 26 insertions(+), 26 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/bswap.h
> 
> diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c
> index 458d3da..67a6123 100644
> --- a/pc-bios/s390-ccw/bootmap.c
> +++ b/pc-bios/s390-ccw/bootmap.c
> @@ -12,6 +12,7 @@
>  #include "s390-ccw.h"
>  #include "bootmap.h"
>  #include "virtio.h"
> +#include "bswap.h"
> 
>  #ifdef DEBUG
>  /* #define DEBUG_FALLBACK */
> diff --git a/pc-bios/s390-ccw/bootmap.h b/pc-bios/s390-ccw/bootmap.h
> index 7f36782..cf99a4c 100644
> --- a/pc-bios/s390-ccw/bootmap.h
> +++ b/pc-bios/s390-ccw/bootmap.h
> @@ -324,32 +324,6 @@ static inline int _memcmp(const void *s1, const void *s2, size_t n)
>      return 0;
>  }
> 
> -/* from include/qemu/bswap.h */
> -
> -/* El Torito is always little-endian */
> -static inline uint16_t bswap16(uint16_t x)
> -{
> -    return ((x & 0x00ff) << 8) | ((x & 0xff00) >> 8);
> -}
> -
> -static inline uint32_t bswap32(uint32_t x)
> -{
> -    return ((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) <<  8) |
> -           ((x & 0x00ff0000U) >>  8) | ((x & 0xff000000U) >> 24);
> -}
> -
> -static inline uint64_t bswap64(uint64_t x)
> -{
> -    return ((x & 0x00000000000000ffULL) << 56) |
> -           ((x & 0x000000000000ff00ULL) << 40) |
> -           ((x & 0x0000000000ff0000ULL) << 24) |
> -           ((x & 0x00000000ff000000ULL) <<  8) |
> -           ((x & 0x000000ff00000000ULL) >>  8) |
> -           ((x & 0x0000ff0000000000ULL) >> 24) |
> -           ((x & 0x00ff000000000000ULL) >> 40) |
> -           ((x & 0xff00000000000000ULL) >> 56);
> -}
> -
>  static inline uint32_t iso_733_to_u32(uint64_t x)
>  {
>      return (uint32_t)x;
> diff --git a/pc-bios/s390-ccw/bswap.h b/pc-bios/s390-ccw/bswap.h
> new file mode 100644
> index 0000000..45b5ef4
> --- /dev/null
> +++ b/pc-bios/s390-ccw/bswap.h
> @@ -0,0 +1,25 @@
> +
> +/* from include/qemu/bswap.h */
> +
> +static inline uint16_t bswap16(uint16_t x)
> +{
> +    return ((x & 0x00ff) << 8) | ((x & 0xff00) >> 8);
> +}
> +
> +static inline uint32_t bswap32(uint32_t x)
> +{
> +    return ((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) <<  8) |
> +           ((x & 0x00ff0000U) >>  8) | ((x & 0xff000000U) >> 24);
> +}
> +
> +static inline uint64_t bswap64(uint64_t x)
> +{
> +    return ((x & 0x00000000000000ffULL) << 56) |
> +           ((x & 0x000000000000ff00ULL) << 40) |
> +           ((x & 0x0000000000ff0000ULL) << 24) |
> +           ((x & 0x00000000ff000000ULL) <<  8) |
> +           ((x & 0x000000ff00000000ULL) >>  8) |
> +           ((x & 0x0000ff0000000000ULL) >> 24) |
> +           ((x & 0x00ff000000000000ULL) >> 40) |
> +           ((x & 0xff00000000000000ULL) >> 56);
> +}
> 

Re: [Qemu-devel] [PATCH v3 00/10] Implement network booting directly into the s390-ccw BIOS

[Christian Borntraeger]

On 07/10/2017 05:32 PM, Thomas Huth wrote:
> It's already possible to do a network boot of an s390x guest with an
> external netboot image based on a Linux installation, but it would
> be much more convenient if the s390-ccw firmware supported network
> booting right out of the box, without the need to assemble such an
> external image first.
> 
> This patch series now introduces a s390-netboot.img that can be used
> for network booting via DHCP and TFTP by re-using the networking stack
> from the SLOF firmware (see https://github.com/aik/SLOF/ for details),
> and adds a driver for virtio-net-ccw devices.
> 
> The code can only be built if the roms/SLOF submodule has been checked
> out (there is a sanity check for this in the Makefile). Once it has
> been built, you can download a combined kernel + initrd image via TFTP
> by starting QEMU for example with:
> 
>  qemu-system-s390x ... -device virtio-net,netdev=n1,bootindex=1 \
>        -netdev user,id=n1,tftp=/path/to/tftp,bootfile=kernel.img
> 
> Note that this version does not support downloading via config
> files (i.e. pxelinux config files or .INS config files) yet. This
> will be added later.
> 
> v3:
>  - Adressed the review feedback from v2
>  - The last remaining SLOF patch has now been merged (big thanks to
>    Alexey!), so not sending this as RFC anymore - it is ready now for
>    integration, I think.
> 
> v2:
>  - Put the network boot loader into a separate s390-netboot.img
>    binary instead of linking it directly into the s390-ccw firmware.
>  - Use the SLOF sources from the roms/SLOF/ submodule instead of
>    copying them into the pc-bios/s390-ccw folder
>  - Removed the .INS config file loading code for now - only support
>    combined kernel + initrd images in this initial implementation.
> 
> Thomas Huth (10):
>   pc-bios/s390-ccw: Move libc functions to separate header
>   pc-bios/s390-ccw: Move ebc2asc to sclp.c
>   pc-bios/s390-ccw: Move virtio-block related functions into a separate
>     file
>   pc-bios/s390-ccw: Add a write() function for stdio
>   pc-bios/s390-ccw: Move byteswap functions to a separate header
>   pc-bios/s390-ccw: Add code for virtio feature negotiation
>   roms/SLOF: Update submodule to latest status
>   pc-bios/s390-ccw: Add core files for the network bootloading program
>   pc-bios/s390-ccw: Add virtio-net driver code
>   pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP
>     load
> 
>  pc-bios/s390-ccw/Makefile        |  13 +-
>  pc-bios/s390-ccw/bootmap.c       |   2 +
>  pc-bios/s390-ccw/bootmap.h       |  26 ---
>  pc-bios/s390-ccw/bswap.h         |  25 +++
>  pc-bios/s390-ccw/libc.h          |  45 +++++
>  pc-bios/s390-ccw/main.c          |  14 +-
>  pc-bios/s390-ccw/netboot.mak     |  51 ++++++
>  pc-bios/s390-ccw/netmain.c       | 365 +++++++++++++++++++++++++++++++++++++++
>  pc-bios/s390-ccw/s390-ccw.h      |  33 +---
>  pc-bios/s390-ccw/sclp.c          |  37 ++--
>  pc-bios/s390-ccw/virtio-blkdev.c | 297 +++++++++++++++++++++++++++++++
>  pc-bios/s390-ccw/virtio-net.c    | 133 ++++++++++++++
>  pc-bios/s390-ccw/virtio-scsi.c   |   1 +
>  pc-bios/s390-ccw/virtio.c        | 306 ++++----------------------------
>  pc-bios/s390-ccw/virtio.h        |  18 +-
>  roms/SLOF                        |   2 +-
>  16 files changed, 1007 insertions(+), 361 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/bswap.h
>  create mode 100644 pc-bios/s390-ccw/libc.h
>  create mode 100644 pc-bios/s390-ccw/netboot.mak
>  create mode 100644 pc-bios/s390-ccw/netmain.c
>  create mode 100644 pc-bios/s390-ccw/virtio-blkdev.c
>  create mode 100644 pc-bios/s390-ccw/virtio-net.c
> 

Generic Ack for all patches from me. I will give it some more review on the list,
but since this is standalone I will pick up this patch series unless review
has some findings.

Re: [Qemu-devel] [PATCH v3 01/10] pc-bios/s390-ccw: Move libc functions to separate header

[Cornelia Huck]

On Mon, 10 Jul 2017 17:32:31 +0200
Thomas Huth <thuth@redhat.com> wrote:

> The upcoming netboot code will use the libc from SLOF. To be able
> to still use s390-ccw.h there, the libc related functions in this
> header have to be moved to a different location.
> And while we're at it, remove the duplicate memcpy() function from
> sclp.c.
> 
> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/bootmap.c     |  1 +
>  pc-bios/s390-ccw/libc.h        | 45 ++++++++++++++++++++++++++++++++++++++++++
>  pc-bios/s390-ccw/main.c        |  1 +
>  pc-bios/s390-ccw/s390-ccw.h    | 29 ---------------------------
>  pc-bios/s390-ccw/sclp.c        | 10 ++--------
>  pc-bios/s390-ccw/virtio-scsi.c |  1 +
>  pc-bios/s390-ccw/virtio.c      |  1 +
>  7 files changed, 51 insertions(+), 37 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/libc.h
> 

> diff --git a/pc-bios/s390-ccw/libc.h b/pc-bios/s390-ccw/libc.h
> new file mode 100644
> index 0000000..6397d67
> --- /dev/null
> +++ b/pc-bios/s390-ccw/libc.h
> @@ -0,0 +1,45 @@
> +/*
> + * libc-style definitions and functions
> + *
> + * This code is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#ifndef S390_CCW_LIBC_H
> +#define S390_CCW_LIBC_H
> +
> +typedef long               size_t;
> +typedef int                bool;
> +typedef unsigned char      uint8_t;
> +typedef unsigned short     uint16_t;
> +typedef unsigned int       uint32_t;
> +typedef unsigned long long uint64_t;
> +
> +static inline void *memset(void *s, int c, size_t n)

This one uses n...

> +{
> +    int i;
> +    unsigned char *p = s;
> +
> +    for (i = 0; i < n; i++) {
> +        p[i] = c;
> +    }
> +
> +    return s;
> +}
> +
> +static inline void *memcpy(void *s1, const void *s2, size_t len)

...and this one len. (The duplicate memcpy function used n.)

No real need to change, just to show I actually read this ;)

> +{
> +    uint8_t *dest = s1;
> +    const uint8_t *src = s2;
> +    int i;
> +
> +    for (i = 0; i < len; i++) {
> +        dest[i] = src[i];
> +    }
> +
> +    return s1;
> +}
> +
> +#endif

Reviewed-by: Cornelia Huck <cohuck@redhat.com>

Re: [Qemu-devel] [PATCH v3 03/10] pc-bios/s390-ccw: Move virtio-block related functions into a separate file

[Cornelia Huck]

On Mon, 10 Jul 2017 17:32:33 +0200
Thomas Huth <thuth@redhat.com> wrote:

> The netboot code is going to link against the code from virtio.c, too, so
> we've got to move the virtio-block and -scsi related code out of the way.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/Makefile        |   2 +-
>  pc-bios/s390-ccw/main.c          |   2 +-
>  pc-bios/s390-ccw/s390-ccw.h      |   2 +-
>  pc-bios/s390-ccw/virtio-blkdev.c | 296 +++++++++++++++++++++++++++++++++++++++
>  pc-bios/s390-ccw/virtio.c        | 273 +-----------------------------------
>  pc-bios/s390-ccw/virtio.h        |   4 +
>  6 files changed, 307 insertions(+), 272 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/virtio-blkdev.c

Reviewed-by: Cornelia Huck <cohuck@redhat.com>

Re: [Qemu-devel] [PATCH v3 05/10] pc-bios/s390-ccw: Move byteswap functions to a separate header

[Cornelia Huck]

On Mon, 10 Jul 2017 17:32:35 +0200
Thomas Huth <thuth@redhat.com> wrote:

> We'll need them in code that is not related to bootmap.h, so
> they should reside in an independent header.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/bootmap.c |  1 +
>  pc-bios/s390-ccw/bootmap.h | 26 --------------------------
>  pc-bios/s390-ccw/bswap.h   | 25 +++++++++++++++++++++++++
>  3 files changed, 26 insertions(+), 26 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/bswap.h

> diff --git a/pc-bios/s390-ccw/bswap.h b/pc-bios/s390-ccw/bswap.h
> new file mode 100644
> index 0000000..45b5ef4
> --- /dev/null
> +++ b/pc-bios/s390-ccw/bswap.h

Add a copyright/licence text?

> @@ -0,0 +1,25 @@
> +
> +/* from include/qemu/bswap.h */
> +
> +static inline uint16_t bswap16(uint16_t x)
> +{
> +    return ((x & 0x00ff) << 8) | ((x & 0xff00) >> 8);
> +}
> +
> +static inline uint32_t bswap32(uint32_t x)
> +{
> +    return ((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) <<  8) |
> +           ((x & 0x00ff0000U) >>  8) | ((x & 0xff000000U) >> 24);
> +}
> +
> +static inline uint64_t bswap64(uint64_t x)
> +{
> +    return ((x & 0x00000000000000ffULL) << 56) |
> +           ((x & 0x000000000000ff00ULL) << 40) |
> +           ((x & 0x0000000000ff0000ULL) << 24) |
> +           ((x & 0x00000000ff000000ULL) <<  8) |
> +           ((x & 0x000000ff00000000ULL) >>  8) |
> +           ((x & 0x0000ff0000000000ULL) >> 24) |
> +           ((x & 0x00ff000000000000ULL) >> 40) |
> +           ((x & 0xff00000000000000ULL) >> 56);
> +}

Re: [Qemu-devel] [PATCH v3 06/10] pc-bios/s390-ccw: Add code for virtio feature negotiation

[Cornelia Huck]

On Mon, 10 Jul 2017 17:32:36 +0200
Thomas Huth <thuth@redhat.com> wrote:

> The upcoming virtio-net driver needs to negotiate some features,
> so we need the possibility to do this in the core virtio code.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/s390-ccw.h      |  2 ++
>  pc-bios/s390-ccw/virtio-blkdev.c |  3 ++-
>  pc-bios/s390-ccw/virtio.c        | 25 ++++++++++++++++++-------
>  pc-bios/s390-ccw/virtio.h        |  2 +-
>  4 files changed, 23 insertions(+), 9 deletions(-)
> 

> diff --git a/pc-bios/s390-ccw/virtio-blkdev.c b/pc-bios/s390-ccw/virtio-blkdev.c
> index 6cb77bc..ed4026f 100644
> --- a/pc-bios/s390-ccw/virtio-blkdev.c
> +++ b/pc-bios/s390-ccw/virtio-blkdev.c
> @@ -266,9 +266,10 @@ uint64_t virtio_get_blocks(void)
>  void virtio_blk_setup_device(SubChannelId schid)
>  {
>      VDev *vdev = virtio_get_device();
> +    uint32_t guestfeats[2] = { 0, 0 };
>  
>      vdev->schid = schid;
> -    virtio_setup_ccw(vdev);
> +    virtio_setup_ccw(vdev, guestfeats);

I'd tack the feature bits onto the VDev instead. Even if you're not
doing anything fancy right now, it makes validating the feature bits
more straightforward.

>  
>      switch (vdev->senseid.cu_model) {
>      case VIRTIO_ID_BLOCK:

Re: [Qemu-devel] [PATCH v3 05/10] pc-bios/s390-ccw: Move byteswap functions to a separate header

[Thomas Huth]

On 11.07.2017 09:59, Cornelia Huck wrote:
> On Mon, 10 Jul 2017 17:32:35 +0200
> Thomas Huth <thuth@redhat.com> wrote:
> 
>> We'll need them in code that is not related to bootmap.h, so
>> they should reside in an independent header.
>>
>> Signed-off-by: Thomas Huth <thuth@redhat.com>
>> ---
>>  pc-bios/s390-ccw/bootmap.c |  1 +
>>  pc-bios/s390-ccw/bootmap.h | 26 --------------------------
>>  pc-bios/s390-ccw/bswap.h   | 25 +++++++++++++++++++++++++
>>  3 files changed, 26 insertions(+), 26 deletions(-)
>>  create mode 100644 pc-bios/s390-ccw/bswap.h
> 
>> diff --git a/pc-bios/s390-ccw/bswap.h b/pc-bios/s390-ccw/bswap.h
>> new file mode 100644
>> index 0000000..45b5ef4
>> --- /dev/null
>> +++ b/pc-bios/s390-ccw/bswap.h
> 
> Add a copyright/licence text?

The original file include/qemu/bswap.h (where this code comes from) also
does not have a copyright statement, so I was not sure which one to add
here. I think that simply means that the default applies here...
But I can certainly also add the default GPLv2+ statement if you think
that we need it here...

 Thomas

Re: [Qemu-devel] [PATCH v3 08/10] pc-bios/s390-ccw: Add core files for the network bootloading program

[Cornelia Huck]

On Mon, 10 Jul 2017 17:32:38 +0200
Thomas Huth <thuth@redhat.com> wrote:

> This is just a preparation for the next steps: Add a makefile and a
> stripped down copy of pc-bios/s390-ccw/main.c as a basis for the network
> bootloader program, linked against the libc from SLOF already (which we
> will need for SLOF's libnet). The networking code is not included yet.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/Makefile    |  11 +++-
>  pc-bios/s390-ccw/netboot.mak |  41 +++++++++++++
>  pc-bios/s390-ccw/netmain.c   | 140 +++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 190 insertions(+), 2 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/netboot.mak
>  create mode 100644 pc-bios/s390-ccw/netmain.c
> 

> diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
> new file mode 100644
> index 0000000..fcdd7a1
> --- /dev/null
> +++ b/pc-bios/s390-ccw/netmain.c
> @@ -0,0 +1,140 @@
> +/*
> + * S390 virtio-ccw network boot loading program
> + *
> + * Copyright 2017 Thomas Huth, Red Hat Inc.
> + *
> + * Based on the S390 virtio-ccw loading program (main.c)
> + * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
> + *
> + * This code is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <stdint.h>
> +#include <stdbool.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <time.h>
> +
> +#include "s390-ccw.h"
> +#include "virtio.h"
> +
> +extern char _start[];
> +
> +char stack[PAGE_SIZE * 8] __attribute__((aligned(PAGE_SIZE)));
> +IplParameterBlock iplb __attribute__((aligned(PAGE_SIZE)));
> +
> +static SubChannelId blk_schid = { .one = 1 };

Call that net_schid instead? ;)

> +static uint64_t dest_timer;
> +
> +static uint64_t get_timer_ms(void)
> +{
> +    uint64_t clk;
> +
> +    asm volatile(" stck %0 " : : "Q"(clk) : "memory");
> +
> +    /* Bit 51 is incrememented each microsecond */
> +    return (clk >> (63 - 51)) / 1000;
> +}
> +
> +void set_timer(int val)
> +{
> +    dest_timer = get_timer_ms() + val;
> +}
> +
> +int get_timer(void)
> +{
> +    return dest_timer - get_timer_ms();
> +}
> +
> +int get_sec_ticks(void)
> +{
> +    return 1000;    /* number of ticks in 1 second */
> +}
> +
> +void panic(const char *string)
> +{
> +    sclp_print(string);
> +    for (;;) {
> +        disabled_wait();
> +    }
> +}
> +
> +static bool find_dev(Schib *schib, int dev_no)
> +{
> +    int i, r;
> +
> +    for (i = 0; i < 0x10000; i++) {
> +        blk_schid.sch_no = i;
> +        r = stsch_err(blk_schid, schib);
> +        if (r == 3 || r == -EIO) {
> +            break;
> +        }
> +        if (!schib->pmcw.dnv) {
> +            continue;
> +        }
> +        if (!virtio_is_supported(blk_schid)) {
> +            continue;
> +        }
> +        /* Skip net devices since no IPLB is created and therefore no
> +         * no network bootloader has been loaded
> +         */
> +        if (virtio_get_device_type() == VIRTIO_ID_NET && dev_no < 0) {
> +            continue;

Don't you explicitly want to find net devices here? Confused.

> +        }
> +        if (dev_no < 0 || schib->pmcw.dev == dev_no) {
> +            return true;
> +        }
> +    }
> +
> +    return false;
> +}
> +

Re: [Qemu-devel] [PATCH v3 09/10] pc-bios/s390-ccw: Add virtio-net driver code

[Cornelia Huck]

On Mon, 10 Jul 2017 17:32:39 +0200
Thomas Huth <thuth@redhat.com> wrote:

> The driver provides the recv() and send() functions which will
> be required by SLOF's libnet code for receiving and sending
> packets.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/netboot.mak  |   2 +-
>  pc-bios/s390-ccw/virtio-net.c | 133 ++++++++++++++++++++++++++++++++++++++++++
>  pc-bios/s390-ccw/virtio.c     |   9 ++-
>  pc-bios/s390-ccw/virtio.h     |  14 ++++-
>  4 files changed, 153 insertions(+), 5 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/virtio-net.c
> 

> diff --git a/pc-bios/s390-ccw/virtio-net.c b/pc-bios/s390-ccw/virtio-net.c
> new file mode 100644
> index 0000000..804e7af
> --- /dev/null
> +++ b/pc-bios/s390-ccw/virtio-net.c
> @@ -0,0 +1,133 @@
> +/*
> + * Virtio-net driver for the s390-ccw firmware
> + *
> + * Copyright 2017 Thomas Huth, Red Hat Inc.
> + *
> + * This code is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <stdint.h>
> +#include <stdbool.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <sys/socket.h>
> +#include <ethernet.h>
> +#include "s390-ccw.h"
> +#include "virtio.h"
> +
> +#ifndef DEBUG_VIRTIO_NET
> +#define DEBUG_VIRTIO_NET 0
> +#endif
> +
> +#define VIRTIO_NET_F_MAC_BIT  (1 << 5)
> +
> +#define VQ_RX 0         /* Receive queue */
> +#define VQ_TX 1         /* Transmit queue */
> +
> +struct VirtioNetHdr {
> +    uint8_t flags;
> +    uint8_t gso_type;
> +    uint16_t hdr_len;
> +    uint16_t gso_size;
> +    uint16_t csum_start;
> +    uint16_t csum_offset;
> +    /*uint16_t num_buffers;*/ /* Only with VIRTIO_NET_F_MRG_RXBUF or VIRTIO1 */
> +};
> +typedef struct VirtioNetHdr VirtioNetHdr;
> +
> +static uint16_t rx_last_idx;  /* Last index in receive queue "used" ring */
> +
> +int virtio_net_init(void *mac_addr)
> +{
> +    VDev *vdev = virtio_get_device();
> +    VRing *rxvq = &vdev->vrings[VQ_RX];
> +    uint32_t guestfeats[2] = { VIRTIO_NET_F_MAC_BIT, 0 };
> +    void *buf;
> +    int i;
> +
> +    virtio_setup_ccw(vdev, guestfeats);

I'd assert here that the mac feature bit was actually set. That should
be the case anyway, but let's make it sure.

> +
> +    memcpy(mac_addr, vdev->config.net.mac, ETH_ALEN);
> +
> +    for (i = 0; i < 64; i++) {
> +        buf = malloc(ETH_MTU_SIZE + sizeof(VirtioNetHdr));
> +        IPL_assert(buf != NULL, "Can not allocate memory for receive buffers");
> +        vring_send_buf(rxvq, buf, ETH_MTU_SIZE + sizeof(VirtioNetHdr),
> +                       VRING_DESC_F_WRITE);
> +    }
> +    vring_notify(rxvq);
> +
> +    return 0;
> +}

> diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
> index e3dcfd3..4cd70df 100644
> --- a/pc-bios/s390-ccw/virtio.c
> +++ b/pc-bios/s390-ccw/virtio.c
> @@ -150,7 +150,7 @@ static void vring_init(VRing *vr, VqInfo *info)
>      debug_print_addr("init vr", vr);
>  }
>  
> -static bool vring_notify(VRing *vr)
> +bool vring_notify(VRing *vr)
>  {
>      vr->cookie = virtio_notify(vr->schid, vr->id, vr->cookie);
>      return vr->cookie >= 0;
> @@ -189,7 +189,7 @@ ulong get_second(void)
>      return (get_clock() >> 12) / 1000000;
>  }
>  
> -static int vr_poll(VRing *vr)
> +int vr_poll(VRing *vr)
>  {
>      if (vr->used->idx == vr->used_idx) {
>          vring_notify(vr);

If you're going to do a re-spin, I'd prefer to move exporting the
interfaces into one of the prep patches, if that makes sense.

But generally looks good to me.

Re: [Qemu-devel] [PATCH v3 10/10] pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP load

[Cornelia Huck]

On Mon, 10 Jul 2017 17:32:40 +0200
Thomas Huth <thuth@redhat.com> wrote:

> Most of the code has been taken from SLOF's netload.c file. Now we
> can finally load an image via TFTP and execute the downloaded kernel.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/netboot.mak |  12 ++-
>  pc-bios/s390-ccw/netmain.c   | 225 +++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 236 insertions(+), 1 deletion(-)

I have not looked at the gory details, but this looks fine on a
readthrough; so

Acked-by: Cornelia Huck <cohuck@redhat.com>

Re: [Qemu-devel] [PATCH v3 05/10] pc-bios/s390-ccw: Move byteswap functions to a separate header

[Cornelia Huck]

On Tue, 11 Jul 2017 10:52:24 +0200
Thomas Huth <thuth@redhat.com> wrote:

> On 11.07.2017 09:59, Cornelia Huck wrote:
> > On Mon, 10 Jul 2017 17:32:35 +0200
> > Thomas Huth <thuth@redhat.com> wrote:
> >   
> >> We'll need them in code that is not related to bootmap.h, so
> >> they should reside in an independent header.
> >>
> >> Signed-off-by: Thomas Huth <thuth@redhat.com>
> >> ---
> >>  pc-bios/s390-ccw/bootmap.c |  1 +
> >>  pc-bios/s390-ccw/bootmap.h | 26 --------------------------
> >>  pc-bios/s390-ccw/bswap.h   | 25 +++++++++++++++++++++++++
> >>  3 files changed, 26 insertions(+), 26 deletions(-)
> >>  create mode 100644 pc-bios/s390-ccw/bswap.h  
> >   
> >> diff --git a/pc-bios/s390-ccw/bswap.h b/pc-bios/s390-ccw/bswap.h
> >> new file mode 100644
> >> index 0000000..45b5ef4
> >> --- /dev/null
> >> +++ b/pc-bios/s390-ccw/bswap.h  
> > 
> > Add a copyright/licence text?  
> 
> The original file include/qemu/bswap.h (where this code comes from) also
> does not have a copyright statement, so I was not sure which one to add
> here. I think that simply means that the default applies here...
> But I can certainly also add the default GPLv2+ statement if you think
> that we need it here...

No, that's fine; it's just the only file in this subdirectory without
an explicit header...

Acked-by: Cornelia Huck <cohuck@redhat.com>

Re: [Qemu-devel] [PATCH v3 02/10] pc-bios/s390-ccw: Move ebc2asc to sclp.c

[David Hildenbrand]

On 10.07.2017 17:32, Thomas Huth wrote:
> We will later need this array in a file that we will link to the
> netboot code, too. Since there is some ebcdic conversion done
> in sclp_get_loadparm_ascii(), the sclp.c file seems to be a good
> candidate.
> 
> Acked-by: Cornelia Huck <cohuck@redhat.com>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/main.c | 11 -----------
>  pc-bios/s390-ccw/sclp.c | 11 +++++++++++
>  2 files changed, 11 insertions(+), 11 deletions(-)
> 
> diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
> index 40cba8d..0580eac 100644
> --- a/pc-bios/s390-ccw/main.c
> +++ b/pc-bios/s390-ccw/main.c
> @@ -17,17 +17,6 @@ static SubChannelId blk_schid = { .one = 1 };
>  IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE)));
>  static char loadparm[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
>  
> -const unsigned char ebc2asc[256] =
> -      /* 0123456789abcdef0123456789abcdef */
> -        "................................" /* 1F */
> -        "................................" /* 3F */
> -        " ...........<(+|&.........!$*);." /* 5F first.chr.here.is.real.space */
> -        "-/.........,%_>?.........`:#@'=\""/* 7F */
> -        ".abcdefghi.......jklmnopqr......" /* 9F */
> -        "..stuvwxyz......................" /* BF */
> -        ".ABCDEFGHI.......JKLMNOPQR......" /* DF */
> -        "..STUVWXYZ......0123456789......";/* FF */
> -
>  /*
>   * Priniciples of Operations (SA22-7832-09) chapter 17 requires that
>   * a subsystem-identification is at 184-187 and bytes 188-191 are zero
> diff --git a/pc-bios/s390-ccw/sclp.c b/pc-bios/s390-ccw/sclp.c
> index aa1c862..2ee204a 100644
> --- a/pc-bios/s390-ccw/sclp.c
> +++ b/pc-bios/s390-ccw/sclp.c
> @@ -14,6 +14,17 @@
>  
>  static char _sccb[PAGE_SIZE] __attribute__((__aligned__(4096)));
>  
> +const unsigned char ebc2asc[256] =
> +      /* 0123456789abcdef0123456789abcdef */
> +        "................................" /* 1F */
> +        "................................" /* 3F */
> +        " ...........<(+|&.........!$*);." /* 5F first.chr.here.is.real.space */
> +        "-/.........,%_>?.........`:#@'=\""/* 7F */
> +        ".abcdefghi.......jklmnopqr......" /* 9F */
> +        "..stuvwxyz......................" /* BF */
> +        ".ABCDEFGHI.......JKLMNOPQR......" /* DF */
> +        "..STUVWXYZ......0123456789......";/* FF */
> +
>  /* Perform service call. Return 0 on success, non-zero otherwise. */
>  static int sclp_service_call(unsigned int command, void *sccb)
>  {
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David

Re: [Qemu-devel] [PATCH v3 03/10] pc-bios/s390-ccw: Move virtio-block related functions into a separate file

[David Hildenbrand]

On 10.07.2017 17:32, Thomas Huth wrote:
> The netboot code is going to link against the code from virtio.c, too, so
> we've got to move the virtio-block and -scsi related code out of the way.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/Makefile        |   2 +-
>  pc-bios/s390-ccw/main.c          |   2 +-
>  pc-bios/s390-ccw/s390-ccw.h      |   2 +-
>  pc-bios/s390-ccw/virtio-blkdev.c | 296 +++++++++++++++++++++++++++++++++++++++
>  pc-bios/s390-ccw/virtio.c        | 273 +-----------------------------------
>  pc-bios/s390-ccw/virtio.h        |   4 +
>  6 files changed, 307 insertions(+), 272 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/virtio-blkdev.c
> 
> diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
> index fb88c13..82b41ef 100644
> --- a/pc-bios/s390-ccw/Makefile
> +++ b/pc-bios/s390-ccw/Makefile
> @@ -9,7 +9,7 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw)
>  
>  .PHONY : all clean build-all
>  
> -OBJECTS = start.o main.o bootmap.o sclp.o virtio.o virtio-scsi.o
> +OBJECTS = start.o main.o bootmap.o sclp.o virtio.o virtio-scsi.o virtio-blkdev.o
>  QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS))
>  QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float
>  QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing
> diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
> index 0580eac..401e9db 100644
> --- a/pc-bios/s390-ccw/main.c
> +++ b/pc-bios/s390-ccw/main.c
> @@ -144,7 +144,7 @@ static void virtio_setup(void)
>          sclp_print("Network boot device detected\n");
>          vdev->netboot_start_addr = iplb.ccw.netboot_start_addr;
>      } else {
> -        virtio_setup_device(blk_schid);
> +        virtio_blk_setup_device(blk_schid);
>  
>          IPL_assert(virtio_ipl_disk_is_valid(), "No valid IPL device detected");
>      }
> diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
> index 43e2d42..6fdc858 100644
> --- a/pc-bios/s390-ccw/s390-ccw.h
> +++ b/pc-bios/s390-ccw/s390-ccw.h
> @@ -74,7 +74,7 @@ void sclp_get_loadparm_ascii(char *loadparm);
>  unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
>                                   ulong subchan_id, void *load_addr);
>  bool virtio_is_supported(SubChannelId schid);
> -void virtio_setup_device(SubChannelId schid);
> +void virtio_blk_setup_device(SubChannelId schid);
>  int virtio_read(ulong sector, void *load_addr);
>  int enable_mss_facility(void);
>  ulong get_second(void);
> diff --git a/pc-bios/s390-ccw/virtio-blkdev.c b/pc-bios/s390-ccw/virtio-blkdev.c
> new file mode 100644
> index 0000000..6cb77bc
> --- /dev/null
> +++ b/pc-bios/s390-ccw/virtio-blkdev.c
> @@ -0,0 +1,296 @@
> +/*
> + * Virtio driver bits
> + *
> + * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or (at
> + * your option) any later version. See the COPYING file in the top-level
> + * directory.
> + */
> +
> +#include "libc.h"
> +#include "s390-ccw.h"
> +#include "virtio.h"
> +#include "virtio-scsi.h"
> +
> +static int virtio_blk_read_many(VDev *vdev,
> +                                ulong sector, void *load_addr, int sec_num)
> +{

I would change this on the fly into something nicer. But I assume you
really just want a straight copy in this patch.


Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David

Re: [Qemu-devel] [PATCH v3 04/10] pc-bios/s390-ccw: Add a write() function for stdio

[David Hildenbrand]

On 10.07.2017 17:32, Thomas Huth wrote:
> The stdio functions from the SLOF libc need a write() function for
> printing text to stdout/stderr. Let's implement this function by
> refactoring the code from sclp_print().
> 
> Acked-by: Cornelia Huck <cohuck@redhat.com>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  pc-bios/s390-ccw/sclp.c | 16 ++++++++++++++--
>  1 file changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/pc-bios/s390-ccw/sclp.c b/pc-bios/s390-ccw/sclp.c
> index 2ee204a..f6466db 100644
> --- a/pc-bios/s390-ccw/sclp.c
> +++ b/pc-bios/s390-ccw/sclp.c
> @@ -12,6 +12,8 @@
>  #include "s390-ccw.h"
>  #include "sclp.h"
>  
> +long write(int fd, const void *buf, size_t len);
> +
>  static char _sccb[PAGE_SIZE] __attribute__((__aligned__(4096)));
>  
>  const unsigned char ebc2asc[256] =
> @@ -71,11 +73,14 @@ static int _strlen(const char *str)
>      return i;
>  }
>  
> -void sclp_print(const char *str)
> +long write(int fd, const void *str, size_t len)

"buf" (above) vs. "str" here

>  {
> -    int len = _strlen(str);
>      WriteEventData *sccb = (void *)_sccb;
>  
> +    if (fd != 1 && fd != 2) {
> +        return -EIO;
> +    }
> +
>      sccb->h.length = sizeof(WriteEventData) + len;
>      sccb->h.function_code = SCLP_FC_NORMAL_WRITE;
>      sccb->ebh.length = sizeof(EventBufferHeader) + len;
> @@ -84,6 +89,13 @@ void sclp_print(const char *str)
>      memcpy(sccb->data, str, len);
>  
>      sclp_service_call(SCLP_CMD_WRITE_EVENT_DATA, sccb);
> +
> +    return len;
> +}
> +
> +void sclp_print(const char *str)
> +{
> +    write(1, str, _strlen(str));
>  }
>  
>  void sclp_get_loadparm_ascii(char *loadparm)
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David

Re: [Qemu-devel] [PATCH v3 08/10] pc-bios/s390-ccw: Add core files for the network bootloading program

[Thomas Huth]

On 11.07.2017 10:52, Cornelia Huck wrote:
> On Mon, 10 Jul 2017 17:32:38 +0200
> Thomas Huth <thuth@redhat.com> wrote:
> 
>> This is just a preparation for the next steps: Add a makefile and a
>> stripped down copy of pc-bios/s390-ccw/main.c as a basis for the network
>> bootloader program, linked against the libc from SLOF already (which we
>> will need for SLOF's libnet). The networking code is not included yet.
>>
>> Signed-off-by: Thomas Huth <thuth@redhat.com>
>> ---
>>  pc-bios/s390-ccw/Makefile    |  11 +++-
>>  pc-bios/s390-ccw/netboot.mak |  41 +++++++++++++
>>  pc-bios/s390-ccw/netmain.c   | 140 +++++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 190 insertions(+), 2 deletions(-)
>>  create mode 100644 pc-bios/s390-ccw/netboot.mak
>>  create mode 100644 pc-bios/s390-ccw/netmain.c
>>
> 
>> diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
>> new file mode 100644
>> index 0000000..fcdd7a1
>> --- /dev/null
>> +++ b/pc-bios/s390-ccw/netmain.c
>> @@ -0,0 +1,140 @@
>> +/*
>> + * S390 virtio-ccw network boot loading program
>> + *
>> + * Copyright 2017 Thomas Huth, Red Hat Inc.
>> + *
>> + * Based on the S390 virtio-ccw loading program (main.c)
>> + * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
>> + *
>> + * This code is free software; you can redistribute it and/or modify it
>> + * under the terms of the GNU General Public License as published by the
>> + * Free Software Foundation; either version 2 of the License, or (at your
>> + * option) any later version.
>> + */
>> +
>> +#include <stdint.h>
>> +#include <stdbool.h>
>> +#include <stdio.h>
>> +#include <stdlib.h>
>> +#include <string.h>
>> +#include <unistd.h>
>> +#include <time.h>
>> +
>> +#include "s390-ccw.h"
>> +#include "virtio.h"
>> +
>> +extern char _start[];
>> +
>> +char stack[PAGE_SIZE * 8] __attribute__((aligned(PAGE_SIZE)));
>> +IplParameterBlock iplb __attribute__((aligned(PAGE_SIZE)));
>> +
>> +static SubChannelId blk_schid = { .one = 1 };
> 
> Call that net_schid instead? ;)

Yes, makes sense.

>> +static uint64_t dest_timer;
>> +
>> +static uint64_t get_timer_ms(void)
>> +{
>> +    uint64_t clk;
>> +
>> +    asm volatile(" stck %0 " : : "Q"(clk) : "memory");
>> +
>> +    /* Bit 51 is incrememented each microsecond */
>> +    return (clk >> (63 - 51)) / 1000;
>> +}
>> +
>> +void set_timer(int val)
>> +{
>> +    dest_timer = get_timer_ms() + val;
>> +}
>> +
>> +int get_timer(void)
>> +{
>> +    return dest_timer - get_timer_ms();
>> +}
>> +
>> +int get_sec_ticks(void)
>> +{
>> +    return 1000;    /* number of ticks in 1 second */
>> +}
>> +
>> +void panic(const char *string)
>> +{
>> +    sclp_print(string);
>> +    for (;;) {
>> +        disabled_wait();
>> +    }
>> +}
>> +
>> +static bool find_dev(Schib *schib, int dev_no)
>> +{
>> +    int i, r;
>> +
>> +    for (i = 0; i < 0x10000; i++) {
>> +        blk_schid.sch_no = i;
>> +        r = stsch_err(blk_schid, schib);
>> +        if (r == 3 || r == -EIO) {
>> +            break;
>> +        }
>> +        if (!schib->pmcw.dnv) {
>> +            continue;
>> +        }
>> +        if (!virtio_is_supported(blk_schid)) {
>> +            continue;
>> +        }
>> +        /* Skip net devices since no IPLB is created and therefore no
>> +         * no network bootloader has been loaded
>> +         */
>> +        if (virtio_get_device_type() == VIRTIO_ID_NET && dev_no < 0) {
>> +            continue;
> 
> Don't you explicitly want to find net devices here? Confused.

Copy-n-paste left-over. It worked by accident since dev_no was not
negative in my tests, but that piece of code should look different in
netmain.c, of course...

I'll send a v4 ...

 Thomas

Re: [Qemu-devel] [PATCH v3 00/10] Implement network booting directly into the s390-ccw BIOS

[no-reply]

Hi,

This series failed build test on s390x host. Please find the details below.

Type: series
Subject: [Qemu-devel] [PATCH v3 00/10] Implement network booting directly into the s390-ccw BIOS
Message-id: 1499700760-4777-1-git-send-email-thuth@redhat.com

=== TEST SCRIPT BEGIN ===
#!/bin/bash
# Testing script will be invoked under the git checkout with
# HEAD pointing to a commit that has the patches applied on top of "base"
# branch
set -e
echo "=== ENV ==="
env
echo "=== PACKAGES ==="
rpm -qa
echo "=== TEST BEGIN ==="
CC=$HOME/bin/cc
INSTALL=$PWD/install
BUILD=$PWD/build
echo -n "Using CC: "
realpath $CC
mkdir -p $BUILD $INSTALL
SRC=$PWD
cd $BUILD
$SRC/configure --cc=$CC --prefix=$INSTALL
make -j4
# XXX: we need reliable clean up
# make check -j4 V=1
make install
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
 - [tag update]      patchew/20170711004303.3902-1-ehabkost@redhat.com -> patchew/20170711004303.3902-1-ehabkost@redhat.com
 - [tag update]      patchew/20170711124024.1396-1-pbutsykin@virtuozzo.com -> patchew/20170711124024.1396-1-pbutsykin@virtuozzo.com
Switched to a new branch 'test'
7a8436f pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP load
5b80edd pc-bios/s390-ccw: Add virtio-net driver code
60c08d0 pc-bios/s390-ccw: Add core files for the network bootloading program
ff6bc23 roms/SLOF: Update submodule to latest status
10ae122 pc-bios/s390-ccw: Add code for virtio feature negotiation
b466c2a pc-bios/s390-ccw: Move byteswap functions to a separate header
834518a pc-bios/s390-ccw: Add a write() function for stdio
2f7123d pc-bios/s390-ccw: Move virtio-block related functions into a separate file
9798a47 pc-bios/s390-ccw: Move ebc2asc to sclp.c
160d33a pc-bios/s390-ccw: Move libc functions to separate header

=== OUTPUT BEGIN ===
=== ENV ===
XDG_SESSION_ID=146112
SHELL=/bin/sh
USER=fam
PATCHEW=/home/fam/patchew/patchew-cli -s http://patchew.org --nodebug
PATH=/usr/bin:/bin
PWD=/var/tmp/patchew-tester-tmp-wp4_jugh/src
LANG=en_US.UTF-8
HOME=/home/fam
SHLVL=2
LOGNAME=fam
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1012/bus
XDG_RUNTIME_DIR=/run/user/1012
_=/usr/bin/env
=== PACKAGES ===
gpg-pubkey-873529b8-54e386ff
xz-libs-5.2.2-2.fc24.s390x
libxshmfence-1.2-3.fc24.s390x
giflib-4.1.6-15.fc24.s390x
trousers-lib-0.3.13-6.fc24.s390x
ncurses-base-6.0-6.20160709.fc25.noarch
gmp-6.1.1-1.fc25.s390x
libidn-1.33-1.fc25.s390x
slang-2.3.0-7.fc25.s390x
libsemanage-2.5-8.fc25.s390x
pkgconfig-0.29.1-1.fc25.s390x
alsa-lib-1.1.1-2.fc25.s390x
yum-metadata-parser-1.1.4-17.fc25.s390x
python3-slip-dbus-0.6.4-4.fc25.noarch
python2-cssselect-0.9.2-1.fc25.noarch
python-fedora-0.8.0-2.fc25.noarch
createrepo_c-libs-0.10.0-6.fc25.s390x
initscripts-9.69-1.fc25.s390x
wget-1.18-2.fc25.s390x
dhcp-client-4.3.5-1.fc25.s390x
parted-3.2-21.fc25.s390x
flex-2.6.0-3.fc25.s390x
colord-libs-1.3.4-1.fc25.s390x
python-osbs-client-0.33-3.fc25.noarch
perl-Pod-Simple-3.35-1.fc25.noarch
python2-simplejson-3.10.0-1.fc25.s390x
brltty-5.4-2.fc25.s390x
librados2-10.2.4-2.fc25.s390x
tcp_wrappers-7.6-83.fc25.s390x
libcephfs_jni1-10.2.4-2.fc25.s390x
nettle-devel-3.3-1.fc25.s390x
bzip2-devel-1.0.6-21.fc25.s390x
libuuid-2.28.2-2.fc25.s390x
pango-1.40.4-1.fc25.s390x
python3-dnf-1.1.10-6.fc25.noarch
cryptsetup-libs-1.7.4-1.fc25.s390x
texlive-kpathsea-doc-svn41139-33.fc25.1.noarch
netpbm-10.77.00-3.fc25.s390x
openssh-7.4p1-4.fc25.s390x
texlive-kpathsea-bin-svn40473-33.20160520.fc25.1.s390x
texlive-graphics-svn41015-33.fc25.1.noarch
texlive-dvipdfmx-def-svn40328-33.fc25.1.noarch
texlive-mfware-svn40768-33.fc25.1.noarch
texlive-texlive-scripts-svn41433-33.fc25.1.noarch
texlive-euro-svn22191.1.1-33.fc25.1.noarch
texlive-etex-svn37057.0-33.fc25.1.noarch
texlive-iftex-svn29654.0.2-33.fc25.1.noarch
texlive-palatino-svn31835.0-33.fc25.1.noarch
texlive-texlive-docindex-svn41430-33.fc25.1.noarch
texlive-xunicode-svn30466.0.981-33.fc25.1.noarch
texlive-koma-script-svn41508-33.fc25.1.noarch
texlive-pst-grad-svn15878.1.06-33.fc25.1.noarch
texlive-pst-blur-svn15878.2.0-33.fc25.1.noarch
texlive-jknapltx-svn19440.0-33.fc25.1.noarch
netpbm-progs-10.77.00-3.fc25.s390x
texinfo-6.1-4.fc25.s390x
openssl-devel-1.0.2k-1.fc25.s390x
python2-sssdconfig-1.15.2-1.fc25.noarch
gdk-pixbuf2-2.36.6-1.fc25.s390x
mesa-libEGL-13.0.4-3.fc25.s390x
pcre-cpp-8.40-6.fc25.s390x
pcre-utf16-8.40-6.fc25.s390x
glusterfs-extra-xlators-3.10.1-1.fc25.s390x
mesa-libGL-devel-13.0.4-3.fc25.s390x
nss-devel-3.29.3-1.1.fc25.s390x
libaio-0.3.110-6.fc24.s390x
libfontenc-1.1.3-3.fc24.s390x
lzo-2.08-8.fc24.s390x
isl-0.14-5.fc24.s390x
libXau-1.0.8-6.fc24.s390x
linux-atm-libs-2.5.1-14.fc24.s390x
libXext-1.3.3-4.fc24.s390x
libXxf86vm-1.1.4-3.fc24.s390x
bison-3.0.4-4.fc24.s390x
perl-srpm-macros-1-20.fc25.noarch
gawk-4.1.3-8.fc25.s390x
libwayland-client-1.12.0-1.fc25.s390x
perl-Exporter-5.72-366.fc25.noarch
perl-version-0.99.17-1.fc25.s390x
fftw-libs-double-3.3.5-3.fc25.s390x
libssh2-1.8.0-1.fc25.s390x
ModemManager-glib-1.6.4-1.fc25.s390x
newt-python3-0.52.19-2.fc25.s390x
python-munch-2.0.4-3.fc25.noarch
python-bugzilla-1.2.2-4.fc25.noarch
libedit-3.1-16.20160618cvs.fc25.s390x
python-pycurl-7.43.0-4.fc25.s390x
createrepo_c-0.10.0-6.fc25.s390x
device-mapper-multipath-libs-0.4.9-83.fc25.s390x
yum-3.4.3-510.fc25.noarch
dhcp-common-4.3.5-1.fc25.noarch
dracut-config-rescue-044-78.fc25.s390x
teamd-1.26-1.fc25.s390x
mozjs17-17.0.0-16.fc25.s390x
libselinux-2.5-13.fc25.s390x
libgo-devel-6.3.1-1.fc25.s390x
NetworkManager-libnm-1.4.4-3.fc25.s390x
python2-pyparsing-2.1.10-1.fc25.noarch
cairo-gobject-1.14.8-1.fc25.s390x
ethtool-4.8-1.fc25.s390x
xorg-x11-proto-devel-7.7-20.fc25.noarch
brlapi-0.6.5-2.fc25.s390x
librados-devel-10.2.4-2.fc25.s390x
libXinerama-devel-1.1.3-6.fc24.s390x
quota-4.03-7.fc25.s390x
lua-posix-33.3.1-3.fc25.s390x
usbredir-devel-0.7.1-2.fc24.s390x
python-libs-2.7.13-1.fc25.s390x
libX11-devel-1.6.4-4.fc25.s390x
python-devel-2.7.13-1.fc25.s390x
libepoxy-1.4.1-1.fc25.s390x
freetype-devel-2.6.5-3.fc25.s390x
python3-dnf-plugins-core-0.1.21-5.fc25.noarch
perl-macros-5.24.1-385.fc25.s390x
texlive-pdftex-doc-svn41149-33.fc25.1.noarch
mariadb-config-10.1.21-3.fc25.s390x
openssh-clients-7.4p1-4.fc25.s390x
iptables-1.6.0-3.fc25.s390x
texlive-texlive.infra-svn41280-33.fc25.1.noarch
texlive-graphics-cfg-svn40269-33.fc25.1.noarch
texlive-bibtex-svn40768-33.fc25.1.noarch
texlive-mfware-bin-svn40473-33.20160520.fc25.1.s390x
texlive-texlive-scripts-bin-svn29741.0-33.20160520.fc25.1.noarch
texlive-sauerj-svn15878.0-33.fc25.1.noarch
texlive-enctex-svn34957.0-33.fc25.1.noarch
texlive-ifetex-svn24853.1.2-33.fc25.1.noarch
texlive-ntgclass-svn15878.2.1a-33.fc25.1.noarch
texlive-tex-gyre-math-svn41264-33.fc25.1.noarch
texlive-bera-svn20031.0-33.fc25.1.noarch
texlive-ms-svn29849.0-33.fc25.1.noarch
texlive-pst-fill-svn15878.1.01-33.fc25.1.noarch
texlive-ctable-svn38672-33.fc25.1.noarch
texlive-extsizes-svn17263.1.4a-33.fc25.1.noarch
texlive-collection-latexrecommended-svn35765.0-33.20160520.fc25.1.noarch
perl-Filter-1.57-1.fc25.s390x
krb5-workstation-1.14.4-7.fc25.s390x
python2-rpm-macros-3-12.fc25.noarch
audit-libs-2.7.4-1.fc25.s390x
libglvnd-egl-0.2.999-14.20170308git8e6e102.fc25.s390x
libglvnd-opengl-0.2.999-14.20170308git8e6e102.fc25.s390x
pcre-devel-8.40-6.fc25.s390x
gdbm-1.13-1.fc25.s390x
mesa-libGLES-devel-13.0.4-3.fc25.s390x
java-1.8.0-openjdk-1.8.0.121-10.b14.fc25.s390x
gpg-pubkey-efe550f5-5220ba41
gpg-pubkey-81b46521-55b3ca9a
filesystem-3.2-37.fc24.s390x
libffi-3.1-9.fc24.s390x
keyutils-libs-1.5.9-8.fc24.s390x
libnfnetlink-1.0.1-8.fc24.s390x
libtheora-1.1.1-14.fc24.s390x
xml-common-0.6.3-44.fc24.noarch
autoconf-2.69-22.fc24.noarch
libXt-1.1.5-3.fc24.s390x
kbd-legacy-2.0.3-3.fc24.noarch
ghostscript-fonts-5.50-35.fc24.noarch
libXevie-1.0.3-11.fc24.s390x
libcap-2.25-2.fc25.s390x
mpfr-3.1.5-1.fc25.s390x
perl-Carp-1.40-365.fc25.noarch
libmnl-1.0.4-1.fc25.s390x
perl-Unicode-EastAsianWidth-1.33-8.fc25.noarch
libwayland-cursor-1.12.0-1.fc25.s390x
python-krbV-1.0.90-12.fc25.s390x
python2-urllib3-1.15.1-3.fc25.noarch
fipscheck-1.4.1-11.fc25.s390x
libndp-1.6-1.fc25.s390x
gnupg2-2.1.13-2.fc25.s390x
libXfixes-5.0.3-1.fc25.s390x
adwaita-icon-theme-3.22.0-1.fc25.noarch
dconf-0.26.0-1.fc25.s390x
ncurses-devel-6.0-6.20160709.fc25.s390x
dejagnu-1.6-1.fc25.noarch
libstdc++-devel-6.3.1-1.fc25.s390x
python-beautifulsoup4-4.5.3-1.fc25.noarch
device-mapper-1.02.136-3.fc25.s390x
subversion-1.9.5-1.fc25.s390x
libtool-ltdl-2.4.6-13.fc25.s390x
libevent-2.0.22-1.fc25.s390x
atk-devel-2.22.0-1.fc25.s390x
libev-4.24-1.fc25.s390x
xorg-x11-fonts-Type1-7.5-16.fc24.noarch
libtasn1-devel-4.10-1.fc25.s390x
vte291-devel-0.46.1-1.fc25.s390x
brlapi-devel-0.6.5-2.fc25.s390x
pulseaudio-libs-10.0-2.fc25.s390x
libnl3-cli-3.2.29-2.fc25.s390x
perl-libs-5.24.1-385.fc25.s390x
glib2-2.50.3-1.fc25.s390x
python3-firewall-0.4.4.4-1.fc25.noarch
python2-rpm-4.13.0.1-1.fc25.s390x
gnutls-3.5.10-1.fc25.s390x
pango-devel-1.40.4-1.fc25.s390x
dnf-1.1.10-6.fc25.noarch
texlive-metafont-bin-svn40987-33.20160520.fc25.1.s390x
texlive-xkeyval-svn35741.2.7a-33.fc25.1.noarch
texlive-euler-svn17261.2.5-33.fc25.1.noarch
texlive-mptopdf-svn41282-33.fc25.1.noarch
texlive-wasy-svn35831.0-33.fc25.1.noarch
texlive-avantgar-svn31835.0-33.fc25.1.noarch
texlive-eurosym-svn17265.1.4_subrfix-33.fc25.1.noarch
texlive-knuth-lib-svn35820.0-33.fc25.1.noarch
texlive-parallel-svn15878.0-33.fc25.1.noarch
texlive-texlive-msg-translations-svn41431-33.fc25.1.noarch
texlive-latex-svn40218-33.fc25.1.noarch
texlive-lualatex-math-svn40621-33.fc25.1.noarch
texlive-auto-pst-pdf-svn23723.0.6-33.fc25.1.noarch
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texlive-oberdiek-svn41346-33.fc25.1.noarch
texlive-pst-tools-svn34067.0.05-33.fc25.1.noarch
texlive-tex-gyre-svn18651.2.004-33.fc25.1.noarch
texlive-dvipdfmx-svn41149-33.fc25.1.noarch
texlive-collection-fontsrecommended-svn35830.0-33.20160520.fc25.1.noarch
gnutls-devel-3.5.10-1.fc25.s390x
libcacard-devel-2.5.3-1.fc25.s390x
selinux-policy-targeted-3.13.1-225.11.fc25.noarch
ykpers-1.18.0-2.fc25.s390x
python2-idna-2.5-1.fc25.noarch
dbus-libs-1.11.12-1.fc25.s390x
ghostscript-x11-9.20-7.fc25.s390x
vim-minimal-8.0.514-1.fc25.s390x
libdrm-devel-2.4.77-1.fc25.s390x
file-libs-5.29-4.fc25.s390x
gtk3-devel-3.22.11-1.fc25.s390x
policycoreutils-2.5-20.fc25.s390x
python-async-0.6.1-9.fc22.s390x
dejavu-sans-mono-fonts-2.35-3.fc24.noarch
popt-1.16-7.fc24.s390x
cyrus-sasl-lib-2.1.26-26.2.fc24.s390x
xz-5.2.2-2.fc24.s390x
libpipeline-1.4.1-2.fc24.s390x
pinentry-0.9.7-2.fc24.s390x
pth-2.0.7-27.fc24.s390x
libsepol-2.5-10.fc25.s390x
sqlite-libs-3.14.2-1.fc25.s390x
libxcb-1.12-1.fc25.s390x
libicu-57.1-4.fc25.s390x
perl-Getopt-Long-2.49.1-1.fc25.noarch
avahi-glib-0.6.32-4.fc25.s390x
python3-pip-8.1.2-2.fc25.noarch
python3-libcomps-0.1.7-5.fc25.s390x
python-slip-0.6.4-4.fc25.noarch
python2-libcomps-0.1.7-5.fc25.s390x
gc-7.4.4-1.fc25.s390x
s390utils-cmsfs-1.36.0-1.fc25.s390x
newt-python-0.52.19-2.fc25.s390x
valgrind-3.12.0-1.fc25.s390x
emacs-filesystem-25.1-3.fc25.noarch
libdb-utils-5.3.28-16.fc25.s390x
qt5-srpm-macros-5.7.1-1.fc25.noarch
elfutils-default-yama-scope-0.168-1.fc25.noarch
device-mapper-event-1.02.136-3.fc25.s390x
perl-Class-Inspector-1.31-2.fc25.noarch
poppler-0.45.0-2.fc25.s390x
libbasicobjects-0.1.1-29.fc25.s390x
libradosstriper1-10.2.4-2.fc25.s390x
libXxf86vm-devel-1.1.4-3.fc24.s390x
gsm-1.0.16-1.fc25.s390x
zziplib-0.13.62-7.fc24.s390x
libpaper-1.1.24-12.fc24.s390x
libini_config-1.3.0-29.fc25.s390x
snappy-devel-1.1.3-2.fc24.s390x
libcap-ng-devel-0.7.8-1.fc25.s390x
libxkbcommon-devel-0.7.1-1.fc25.s390x
kernel-4.9.5-200.fc25.s390x
nss-softokn-3.29.3-1.0.fc25.s390x
openssl-libs-1.0.2k-1.fc25.s390x
libkadm5-1.14.4-7.fc25.s390x
rpm-libs-4.13.0.1-1.fc25.s390x
perl-5.24.1-385.fc25.s390x
util-linux-2.28.2-2.fc25.s390x
libICE-1.0.9-8.fc25.s390x
texlive-etoolbox-svn38031.2.2a-33.fc25.1.noarch
texlive-dvips-svn41149-33.fc25.1.noarch
texlive-latexconfig-svn40274-33.fc25.1.noarch
texlive-tex-ini-files-svn40533-33.fc25.1.noarch
texlive-qstest-svn15878.0-33.fc25.1.noarch
texlive-cmap-svn41168-33.fc25.1.noarch
texlive-luatex-bin-svn41091-33.20160520.fc25.1.s390x
texlive-mflogo-svn38628-33.fc25.1.noarch
texlive-sansmath-svn17997.1.1-33.fc25.1.noarch
texlive-unicode-data-svn39808-33.fc25.1.noarch
texlive-luaotfload-bin-svn34647.0-33.20160520.fc25.1.noarch
texlive-listings-svn37534.1.6-33.fc25.1.noarch
texlive-pstricks-svn41321-33.fc25.1.noarch
texlive-metalogo-svn18611.0.12-33.fc25.1.noarch
texlive-collection-latex-svn41011-33.20160520.fc25.1.noarch
kernel-4.10.5-200.fc25.s390x
python2-dnf-plugins-core-0.1.21-5.fc25.noarch
xkeyboard-config-2.20-2.fc25.noarch
nss-util-3.29.3-1.1.fc25.s390x
dbus-1.11.12-1.fc25.s390x
ghostscript-9.20-7.fc25.s390x
vim-filesystem-8.0.514-1.fc25.s390x
jasper-libs-1.900.13-3.fc25.s390x
file-5.29-4.fc25.s390x
curl-7.51.0-6.fc25.s390x
perl-Test-Harness-3.39-1.fc25.noarch
libattr-2.4.47-16.fc24.s390x
acl-2.2.52-11.fc24.s390x
libvisual-0.4.0-20.fc24.s390x
libpcap-1.7.4-2.fc24.s390x
libutempter-1.1.6-8.fc24.s390x
libgudev-230-3.fc24.s390x
popt-devel-1.16-7.fc24.s390x
make-4.1-5.fc24.s390x
hicolor-icon-theme-0.15-3.fc24.noarch
setup-2.10.4-1.fc25.noarch
bash-4.3.43-4.fc25.s390x
nspr-4.13.1-1.fc25.s390x
libjpeg-turbo-1.5.1-0.fc25.s390x
perl-Socket-2.024-1.fc25.s390x
perl-HTTP-Tiny-0.070-1.fc25.noarch
ipset-6.29-1.fc25.s390x
python2-setuptools-25.1.1-1.fc25.noarch
gsettings-desktop-schemas-3.22.0-1.fc25.s390x
python3-setuptools-25.1.1-1.fc25.noarch
python-slip-dbus-0.6.4-4.fc25.noarch
python2-ply-3.8-2.fc25.noarch
dtc-1.4.2-1.fc25.s390x
guile-2.0.13-1.fc25.s390x
cronie-anacron-1.5.1-2.fc25.s390x
libXtst-1.2.3-1.fc25.s390x
iso-codes-3.70-1.fc25.noarch
s390utils-1.36.0-1.fc25.s390x
python-backports-ssl_match_hostname-3.5.0.1-3.fc25.noarch
fedora-cert-0.6.0.1-1.fc25.noarch
libstdc++-6.3.1-1.fc25.s390x
subversion-libs-1.9.5-1.fc25.s390x
libgfortran-6.3.1-1.fc25.s390x
libtasn1-4.10-1.fc25.s390x
dnf-plugin-system-upgrade-0.7.1-4.fc25.noarch
lvm2-2.02.167-3.fc25.s390x
libselinux-devel-2.5-13.fc25.s390x
perl-Time-Local-1.250-1.fc25.noarch
libtirpc-1.0.1-3.rc3.fc25.s390x
libradosstriper-devel-10.2.4-2.fc25.s390x
flac-libs-1.3.2-1.fc25.s390x
perl-Digest-1.17-366.fc25.noarch
teckit-2.5.1-15.fc24.s390x
libpath_utils-0.2.1-29.fc25.s390x
attr-2.4.47-16.fc24.s390x
usbredir-0.7.1-2.fc24.s390x
cairo-devel-1.14.8-1.fc25.s390x
lzo-devel-2.08-8.fc24.s390x
libcap-devel-2.25-2.fc25.s390x
opus-1.1.3-2.fc25.s390x
firewalld-filesystem-0.4.4.4-1.fc25.noarch
coreutils-8.25-16.fc25.s390x
krb5-devel-1.14.4-7.fc25.s390x
rpm-4.13.0.1-1.fc25.s390x
kernel-devel-4.10.5-200.fc25.s390x
systemd-pam-231-14.fc25.s390x
libbsd-0.8.3-1.fc25.s390x
texlive-url-svn32528.3.4-33.fc25.1.noarch
texlive-dvips-bin-svn40987-33.20160520.fc25.1.s390x
texlive-index-svn24099.4.1beta-33.fc25.1.noarch
texlive-setspace-svn24881.6.7a-33.fc25.1.noarch
texlive-mathtools-svn38833-33.fc25.1.noarch
texlive-cm-svn32865.0-33.fc25.1.noarch
texlive-graphics-def-svn41879-33.fc25.1.noarch
texlive-mdwtools-svn15878.1.05.4-33.fc25.1.noarch
texlive-rsfs-svn15878.0-33.fc25.1.noarch
texlive-ucharcat-svn38907-33.fc25.1.noarch
texlive-fontspec-svn41262-33.fc25.1.noarch
texlive-showexpl-svn32737.v0.3l-33.fc25.1.noarch
texlive-pstricks-add-svn40744-33.fc25.1.noarch
texlive-beamer-svn36461.3.36-33.fc25.1.noarch
texlive-collection-basic-svn41149-33.20160520.fc25.1.noarch
mock-1.3.4-1.fc25.noarch
rpm-build-4.13.0.1-1.fc25.s390x
xemacs-filesystem-21.5.34-20.20170124hgf412e9f093d4.fc25.noarch
nss-sysinit-3.29.3-1.1.fc25.s390x
hawkey-0.6.4-3.fc25.s390x
mesa-libGLES-13.0.4-3.fc25.s390x
vim-common-8.0.514-1.fc25.s390x
gdk-pixbuf2-modules-2.36.6-1.fc25.s390x
bluez-libs-5.44-1.fc25.s390x
libcurl-devel-7.51.0-6.fc25.s390x
mc-4.8.19-1.fc25.s390x
gpg-pubkey-a0a7badb-52844296
readline-6.3-8.fc24.s390x
cpio-2.12-3.fc24.s390x
qrencode-libs-3.4.2-6.fc24.s390x
libXcomposite-0.4.4-8.fc24.s390x
procps-ng-3.3.10-11.fc24.s390x
GConf2-3.2.6-16.fc24.s390x
xz-devel-5.2.2-2.fc24.s390x
fedora-logos-22.0.0-3.fc24.s390x
gpg-pubkey-e372e838-56fd7943
kmod-libs-23-1.fc25.s390x
perl-parent-0.236-1.fc25.noarch
perl-TermReadKey-2.37-1.fc25.s390x
dhcp-libs-4.3.5-1.fc25.s390x
ncurses-c++-libs-6.0-6.20160709.fc25.s390x
gzip-1.8-1.fc25.s390x
python3-gobject-base-3.22.0-1.fc25.s390x
python2-yubico-1.3.2-3.fc25.noarch
s390utils-ziomon-1.36.0-1.fc25.s390x
librepo-1.7.18-3.fc25.s390x
librsvg2-2.40.16-2.fc25.s390x
gnat-srpm-macros-4-1.fc25.noarch
python-decoratortools-1.8-12.fc25.noarch
m17n-db-1.7.0-7.fc25.noarch
glibc-common-2.24-4.fc25.s390x
e2fsprogs-libs-1.43.3-1.fc25.s390x
libvorbis-1.3.5-1.fc25.s390x
gcc-gdb-plugin-6.3.1-1.fc25.s390x
perl-Time-HiRes-1.9741-1.fc25.s390x
npth-1.3-1.fc25.s390x
libcephfs1-10.2.4-2.fc25.s390x
wayland-devel-1.12.0-1.fc25.s390x
libxcb-devel-1.12-1.fc25.s390x
perl-encoding-2.19-5.fc25.s390x
python3-cssselect-0.9.2-1.fc25.noarch
gettext-libs-0.19.8.1-3.fc25.s390x
at-spi2-atk-devel-2.22.0-1.fc25.s390x
virglrenderer-0.5.0-1.20160411git61846f92f.fc25.s390x
pixman-devel-0.34.0-2.fc24.s390x
libnfs-devel-1.9.8-2.fc24.s390x
libX11-common-1.6.4-4.fc25.noarch
nss-softokn-devel-3.29.3-1.0.fc25.s390x
libblkid-2.28.2-2.fc25.s390x
bind-libs-9.10.4-4.P6.fc25.s390x
glib2-devel-2.50.3-1.fc25.s390x
systemd-udev-231-14.fc25.s390x
texlive-ifxetex-svn19685.0.5-33.fc25.1.noarch
texlive-caption-svn41409-33.fc25.1.noarch
texlive-float-svn15878.1.3d-33.fc25.1.noarch
texlive-pdftex-def-svn22653.0.06d-33.fc25.1.noarch
texlive-xdvi-bin-svn40750-33.20160520.fc25.1.s390x
texlive-beton-svn15878.0-33.fc25.1.noarch
texlive-filecontents-svn24250.1.3-33.fc25.1.noarch
texlive-lm-math-svn36915.1.959-33.fc25.1.noarch
texlive-pslatex-svn16416.0-33.fc25.1.noarch
texlive-times-svn35058.0-33.fc25.1.noarch
texlive-breakurl-svn29901.1.40-33.fc25.1.noarch
texlive-filehook-svn24280.0.5d-33.fc25.1.noarch
texlive-pst-pdf-svn31660.1.1v-33.fc25.1.noarch
texlive-seminar-svn34011.1.62-33.fc25.1.noarch
texlive-xetexconfig-svn41133-33.fc25.1.noarch
systemtap-3.1-2.fc25.s390x
python-rpm-macros-3-12.fc25.noarch
rpm-devel-4.13.0.1-1.fc25.s390x
nss-pem-1.0.3-3.fc25.s390x
mesa-libGL-13.0.4-3.fc25.s390x
at-spi2-core-2.22.1-1.fc25.s390x
pcre2-utf32-10.23-5.fc25.s390x
gtk3-3.22.11-1.fc25.s390x
GeoIP-GeoLite-data-2017.04-1.fc25.noarch
pcre-static-8.40-6.fc25.s390x
kernel-devel-4.10.8-200.fc25.s390x
=== TEST BEGIN ===
Using CC: /home/fam/bin/cc
Install prefix    /var/tmp/patchew-tester-tmp-wp4_jugh/src/install
BIOS directory    /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/share/qemu
binary directory  /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/bin
library directory /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/lib
module directory  /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/lib/qemu
libexec directory /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/libexec
include directory /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/include
config directory  /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/etc
local state directory   /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/var
Manual directory  /var/tmp/patchew-tester-tmp-wp4_jugh/src/install/share/man
ELF interp prefix /usr/gnemul/qemu-%M
Source path       /var/tmp/patchew-tester-tmp-wp4_jugh/src
C compiler        /home/fam/bin/cc
Host C compiler   cc
C++ compiler      c++
Objective-C compiler /home/fam/bin/cc
ARFLAGS           rv
CFLAGS            -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g 
QEMU_CFLAGS       -I/usr/include/pixman-1  -Werror -DHAS_LIBSSH2_SFTP_FSYNC -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -DNCURSES_WIDECHAR -D_GNU_SOURCE -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv  -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -I/usr/include/p11-kit-1    -I/usr/include/libpng16 -I/usr/include/libdrm  -I/usr/include/cacard -I/usr/include/nss3 -I/usr/include/nspr4 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libusb-1.0 
LDFLAGS           -Wl,--warn-common -m64 -g 
make              make
install           install
python            python -B
smbd              /usr/sbin/smbd
module support    no
host CPU          s390x
host big endian   yes
target list       aarch64-softmmu alpha-softmmu arm-softmmu cris-softmmu i386-softmmu lm32-softmmu m68k-softmmu microblazeel-softmmu microblaze-softmmu mips64el-softmmu mips64-softmmu mipsel-softmmu mips-softmmu moxie-softmmu nios2-softmmu or1k-softmmu ppc64-softmmu ppcemb-softmmu ppc-softmmu s390x-softmmu sh4eb-softmmu sh4-softmmu sparc64-softmmu sparc-softmmu tricore-softmmu unicore32-softmmu x86_64-softmmu xtensaeb-softmmu xtensa-softmmu aarch64-linux-user alpha-linux-user armeb-linux-user arm-linux-user cris-linux-user hppa-linux-user i386-linux-user m68k-linux-user microblazeel-linux-user microblaze-linux-user mips64el-linux-user mips64-linux-user mipsel-linux-user mips-linux-user mipsn32el-linux-user mipsn32-linux-user nios2-linux-user or1k-linux-user ppc64abi32-linux-user ppc64le-linux-user ppc64-linux-user ppc-linux-user s390x-linux-user sh4eb-linux-user sh4-linux-user sparc32plus-linux-user sparc64-linux-user sparc-linux-user tilegx-linux-user x86_64-linux-user
gprof enabled     no
sparse enabled    no
strip binaries    yes
profiler          no
static build      no
pixman            system
SDL support       yes (2.0.5)
GTK support       yes (3.22.11)
GTK GL support    yes
VTE support       yes (0.46.1)
TLS priority      NORMAL
GNUTLS support    yes
GNUTLS rnd        yes
libgcrypt         no
libgcrypt kdf     no
nettle            yes (3.3)
nettle kdf        yes
libtasn1          yes
curses support    yes
virgl support     yes
curl support      yes
mingw32 support   no
Audio drivers     oss
Block whitelist (rw) 
Block whitelist (ro) 
VirtFS support    yes
VNC support       yes
VNC SASL support  yes
VNC JPEG support  yes
VNC PNG support   yes
xen support       no
brlapi support    yes
bluez  support    yes
Documentation     yes
PIE               no
vde support       no
netmap support    no
Linux AIO support yes
ATTR/XATTR support yes
Install blobs     yes
KVM support       yes
HAX support       no
TCG support       yes
TCG debug enabled no
TCG interpreter   no
RDMA support      no
fdt support       yes
preadv support    yes
fdatasync         yes
madvise           yes
posix_madvise     yes
libcap-ng support yes
vhost-net support yes
vhost-scsi support yes
vhost-vsock support yes
Trace backends    log
spice support     no 
rbd support       yes
xfsctl support    no
smartcard support yes
libusb            yes
usb net redir     yes
OpenGL support    yes
OpenGL dmabufs    yes
libiscsi support  yes
libnfs support    yes
build guest agent yes
QGA VSS support   no
QGA w32 disk info no
QGA MSI support   no
seccomp support   no
coroutine backend ucontext
coroutine pool    yes
debug stack usage no
GlusterFS support yes
gcov              gcov
gcov enabled      no
TPM support       yes
libssh2 support   yes
TPM passthrough   no
QOM debugging     yes
Live block migration yes
lzo support       yes
snappy support    yes
bzip2 support     yes
NUMA host support no
tcmalloc support  no
jemalloc support  no
avx2 optimization no
replication support yes
VxHS block device no
  GEN     aarch64-softmmu/config-devices.mak.tmp
  GEN     alpha-softmmu/config-devices.mak.tmp
  GEN     cris-softmmu/config-devices.mak.tmp
  GEN     arm-softmmu/config-devices.mak.tmp
  GEN     cris-softmmu/config-devices.mak
  GEN     i386-softmmu/config-devices.mak.tmp
  GEN     arm-softmmu/config-devices.mak
  GEN     alpha-softmmu/config-devices.mak
  GEN     lm32-softmmu/config-devices.mak.tmp
  GEN     m68k-softmmu/config-devices.mak.tmp
  GEN     aarch64-softmmu/config-devices.mak
  GEN     microblazeel-softmmu/config-devices.mak.tmp
  GEN     lm32-softmmu/config-devices.mak
  GEN     m68k-softmmu/config-devices.mak
  GEN     i386-softmmu/config-devices.mak
  GEN     microblaze-softmmu/config-devices.mak.tmp
  GEN     mips64el-softmmu/config-devices.mak.tmp
  GEN     mips64-softmmu/config-devices.mak.tmp
  GEN     microblazeel-softmmu/config-devices.mak
  GEN     mipsel-softmmu/config-devices.mak.tmp
  GEN     microblaze-softmmu/config-devices.mak
  GEN     mips-softmmu/config-devices.mak.tmp
  GEN     mips64el-softmmu/config-devices.mak
  GEN     mips64-softmmu/config-devices.mak
  GEN     moxie-softmmu/config-devices.mak.tmp
  GEN     nios2-softmmu/config-devices.mak.tmp
  GEN     mipsel-softmmu/config-devices.mak
  GEN     or1k-softmmu/config-devices.mak.tmp
  GEN     moxie-softmmu/config-devices.mak
  GEN     nios2-softmmu/config-devices.mak
  GEN     mips-softmmu/config-devices.mak
  GEN     ppc64-softmmu/config-devices.mak.tmp
  GEN     ppcemb-softmmu/config-devices.mak.tmp
  GEN     or1k-softmmu/config-devices.mak
  GEN     ppc-softmmu/config-devices.mak.tmp
  GEN     s390x-softmmu/config-devices.mak.tmp
  GEN     ppc64-softmmu/config-devices.mak
  GEN     ppcemb-softmmu/config-devices.mak
  GEN     sh4eb-softmmu/config-devices.mak.tmp
  GEN     s390x-softmmu/config-devices.mak
  GEN     sh4-softmmu/config-devices.mak.tmp
  GEN     ppc-softmmu/config-devices.mak
  GEN     sparc64-softmmu/config-devices.mak.tmp
  GEN     sparc-softmmu/config-devices.mak.tmp
  GEN     sparc-softmmu/config-devices.mak
  GEN     sh4eb-softmmu/config-devices.mak
  GEN     tricore-softmmu/config-devices.mak.tmp
  GEN     sh4-softmmu/config-devices.mak
  GEN     unicore32-softmmu/config-devices.mak.tmp
  GEN     x86_64-softmmu/config-devices.mak.tmp
  GEN     sparc64-softmmu/config-devices.mak
  GEN     tricore-softmmu/config-devices.mak
  GEN     xtensaeb-softmmu/config-devices.mak.tmp
  GEN     unicore32-softmmu/config-devices.mak
  GEN     xtensa-softmmu/config-devices.mak.tmp
  GEN     aarch64-linux-user/config-devices.mak.tmp
  GEN     xtensaeb-softmmu/config-devices.mak
  GEN     x86_64-softmmu/config-devices.mak
  GEN     alpha-linux-user/config-devices.mak.tmp
  GEN     aarch64-linux-user/config-devices.mak
  GEN     armeb-linux-user/config-devices.mak.tmp
  GEN     xtensa-softmmu/config-devices.mak
  GEN     arm-linux-user/config-devices.mak.tmp
  GEN     cris-linux-user/config-devices.mak.tmp
  GEN     alpha-linux-user/config-devices.mak
  GEN     armeb-linux-user/config-devices.mak
  GEN     hppa-linux-user/config-devices.mak.tmp
  GEN     arm-linux-user/config-devices.mak
  GEN     i386-linux-user/config-devices.mak.tmp
  GEN     cris-linux-user/config-devices.mak
  GEN     m68k-linux-user/config-devices.mak.tmp
  GEN     microblazeel-linux-user/config-devices.mak.tmp
  GEN     hppa-linux-user/config-devices.mak
  GEN     i386-linux-user/config-devices.mak
  GEN     microblaze-linux-user/config-devices.mak.tmp
  GEN     m68k-linux-user/config-devices.mak
  GEN     microblazeel-linux-user/config-devices.mak
  GEN     mips64el-linux-user/config-devices.mak.tmp
  GEN     mips64-linux-user/config-devices.mak.tmp
  GEN     mipsel-linux-user/config-devices.mak.tmp
  GEN     microblaze-linux-user/config-devices.mak
  GEN     mips-linux-user/config-devices.mak.tmp
  GEN     mips64el-linux-user/config-devices.mak
  GEN     mips64-linux-user/config-devices.mak
  GEN     mipsn32el-linux-user/config-devices.mak.tmp
  GEN     mipsel-linux-user/config-devices.mak
  GEN     mipsn32-linux-user/config-devices.mak.tmp
  GEN     mips-linux-user/config-devices.mak
  GEN     nios2-linux-user/config-devices.mak.tmp
  GEN     or1k-linux-user/config-devices.mak.tmp
  GEN     mipsn32el-linux-user/config-devices.mak
  GEN     nios2-linux-user/config-devices.mak
  GEN     mipsn32-linux-user/config-devices.mak
  GEN     ppc64abi32-linux-user/config-devices.mak.tmp
  GEN     ppc64le-linux-user/config-devices.mak.tmp
  GEN     or1k-linux-user/config-devices.mak
  GEN     ppc64-linux-user/config-devices.mak.tmp
  GEN     ppc-linux-user/config-devices.mak.tmp
  GEN     ppc64abi32-linux-user/config-devices.mak
  GEN     s390x-linux-user/config-devices.mak.tmp
  GEN     ppc64-linux-user/config-devices.mak
  GEN     ppc64le-linux-user/config-devices.mak
  GEN     sh4eb-linux-user/config-devices.mak.tmp
  GEN     ppc-linux-user/config-devices.mak
  GEN     sh4-linux-user/config-devices.mak.tmp
  GEN     s390x-linux-user/config-devices.mak
  GEN     sparc32plus-linux-user/config-devices.mak.tmp
  GEN     sparc64-linux-user/config-devices.mak.tmp
  GEN     sh4eb-linux-user/config-devices.mak
  GEN     sparc-linux-user/config-devices.mak.tmp
  GEN     sh4-linux-user/config-devices.mak
  GEN     sparc32plus-linux-user/config-devices.mak
  GEN     sparc64-linux-user/config-devices.mak
  GEN     x86_64-linux-user/config-devices.mak.tmp
  GEN     tilegx-linux-user/config-devices.mak.tmp
  GEN     sparc-linux-user/config-devices.mak
  GEN     config-host.h
  GEN     tilegx-linux-user/config-devices.mak
  GEN     x86_64-linux-user/config-devices.mak
  GEN     qemu-options.def
  GEN     qmp-commands.h
  GEN     qapi-types.h
  GEN     qapi-visit.h
  GEN     qapi-event.h
  GEN     qmp-marshal.c
  GEN     qapi-types.c
  GEN     qapi-visit.c
  GEN     qapi-event.c
  GEN     qmp-introspect.c
  GEN     qmp-introspect.h
  GEN     trace/generated-tcg-tracers.h
  GEN     trace/generated-helpers-wrappers.h
  GEN     trace/generated-helpers.h
  GEN     trace/generated-helpers.c
  GEN     module_block.h
  GEN     tests/test-qapi-types.h
  GEN     tests/test-qapi-visit.h
  GEN     tests/test-qmp-commands.h
  GEN     tests/test-qapi-event.h
  GEN     tests/test-qmp-introspect.h
  GEN     util/trace.h
  GEN     trace-root.h
  GEN     crypto/trace.h
  GEN     io/trace.h
  GEN     migration/trace.h
  GEN     block/trace.h
  GEN     backends/trace.h
  GEN     chardev/trace.h
  GEN     hw/block/trace.h
  GEN     hw/block/dataplane/trace.h
  GEN     hw/char/trace.h
  GEN     hw/intc/trace.h
  GEN     hw/net/trace.h
  GEN     hw/virtio/trace.h
  GEN     hw/audio/trace.h
  GEN     hw/misc/trace.h
  GEN     hw/usb/trace.h
  GEN     hw/scsi/trace.h
  GEN     hw/nvram/trace.h
  GEN     hw/input/trace.h
  GEN     hw/display/trace.h
  GEN     hw/timer/trace.h
  GEN     hw/dma/trace.h
  GEN     hw/sparc/trace.h
  GEN     hw/sd/trace.h
  GEN     hw/isa/trace.h
  GEN     hw/mem/trace.h
  GEN     hw/i386/trace.h
  GEN     hw/i386/xen/trace.h
  GEN     hw/9pfs/trace.h
  GEN     hw/ppc/trace.h
  GEN     hw/pci/trace.h
  GEN     hw/s390x/trace.h
  GEN     hw/vfio/trace.h
  GEN     hw/acpi/trace.h
  GEN     hw/arm/trace.h
  GEN     hw/alpha/trace.h
  GEN     hw/xen/trace.h
  GEN     ui/trace.h
  GEN     audio/trace.h
  GEN     net/trace.h
  GEN     target/arm/trace.h
  GEN     target/i386/trace.h
  GEN     target/mips/trace.h
  GEN     target/sparc/trace.h
  GEN     target/ppc/trace.h
  GEN     target/s390x/trace.h
  GEN     qom/trace.h
  GEN     linux-user/trace.h
  GEN     qapi/trace.h
  GEN     accel/tcg/trace.h
  GEN     accel/kvm/trace.h
  GEN     trace-root.c
  GEN     nbd/trace.h
  GEN     util/trace.c
  GEN     crypto/trace.c
  GEN     io/trace.c
  GEN     block/trace.c
  GEN     migration/trace.c
  GEN     backends/trace.c
  GEN     chardev/trace.c
  GEN     hw/block/trace.c
  GEN     hw/block/dataplane/trace.c
  GEN     hw/char/trace.c
  GEN     hw/net/trace.c
  GEN     hw/intc/trace.c
  GEN     hw/virtio/trace.c
  GEN     hw/audio/trace.c
  GEN     hw/misc/trace.c
  GEN     hw/usb/trace.c
  GEN     hw/scsi/trace.c
  GEN     hw/nvram/trace.c
  GEN     hw/display/trace.c
  GEN     hw/input/trace.c
  GEN     hw/timer/trace.c
  GEN     hw/dma/trace.c
  GEN     hw/sparc/trace.c
  GEN     hw/isa/trace.c
  GEN     hw/sd/trace.c
  GEN     hw/mem/trace.c
  GEN     hw/i386/trace.c
  GEN     hw/i386/xen/trace.c
  GEN     hw/9pfs/trace.c
  GEN     hw/ppc/trace.c
  GEN     hw/pci/trace.c
  GEN     hw/s390x/trace.c
  GEN     hw/vfio/trace.c
  GEN     hw/acpi/trace.c
  GEN     hw/arm/trace.c
  GEN     hw/alpha/trace.c
  GEN     hw/xen/trace.c
  GEN     ui/trace.c
  GEN     audio/trace.c
  GEN     net/trace.c
  GEN     target/arm/trace.c
  GEN     target/i386/trace.c
  GEN     target/mips/trace.c
  GEN     target/sparc/trace.c
  GEN     target/s390x/trace.c
  GEN     target/ppc/trace.c
  GEN     qom/trace.c
  GEN     linux-user/trace.c
  GEN     qapi/trace.c
  GEN     accel/tcg/trace.c
  GEN     accel/kvm/trace.c
  GEN     nbd/trace.c
  GEN     config-all-devices.mak
  GEN     docs/version.texi
  GEN     qemu-options.texi
  GEN     qemu-img-cmds.texi
  CC      tests/qemu-iotests/socket_scm_helper.o
  GEN     qemu-monitor.texi
  GEN     qemu-monitor-info.texi
  GEN     qemu-img.1
  GEN     qemu-nbd.8
  GEN     qemu-ga.8
  GEN     docs/interop/qemu-qmp-qapi.texi
  GEN     docs/interop/qemu-ga-qapi.texi
  GEN     fsdev/virtfs-proxy-helper.1
  GEN     qga/qapi-generated/qga-qapi-types.h
  GEN     qga/qapi-generated/qga-qmp-commands.h
  GEN     qga/qapi-generated/qga-qapi-visit.h
  GEN     qga/qapi-generated/qga-qapi-types.c
  GEN     qga/qapi-generated/qga-qapi-visit.c
  CC      qmp-introspect.o
  GEN     qga/qapi-generated/qga-qmp-marshal.c
  CC      qapi-types.o
  CC      qapi-visit.o
  CC      qapi-event.o
  CC      qapi/qapi-visit-core.o
  CC      qapi/qapi-dealloc-visitor.o
  CC      qapi/qobject-input-visitor.o
  CC      qapi/qobject-output-visitor.o
  CC      qapi/qmp-registry.o
  CC      qapi/qmp-dispatch.o
  CC      qapi/string-input-visitor.o
  CC      qapi/string-output-visitor.o
  CC      qapi/opts-visitor.o
  CC      qapi/qapi-clone-visitor.o
  CC      qapi/qmp-event.o
  CC      qapi/qapi-util.o
  CC      qobject/qnull.o
  CC      qobject/qnum.o
  CC      qobject/qstring.o
  CC      qobject/qdict.o
  CC      qobject/qlist.o
  CC      qobject/qbool.o
  CC      qobject/qjson.o
  CC      qobject/qobject.o
  CC      qobject/json-lexer.o
  CC      qobject/json-streamer.o
  CC      qobject/json-parser.o
  CC      trace/control.o
  CC      trace/qmp.o
  CC      util/osdep.o
  CC      util/cutils.o
  CC      util/unicode.o
  CC      util/qemu-timer-common.o
  CC      util/bufferiszero.o
  CC      util/lockcnt.o
  CC      util/aiocb.o
  CC      util/async.o
  CC      util/thread-pool.o
  CC      util/qemu-timer.o
  CC      util/main-loop.o
  CC      util/iohandler.o
  CC      util/aio-posix.o
  CC      util/compatfd.o
  CC      util/event_notifier-posix.o
  CC      util/mmap-alloc.o
  CC      util/oslib-posix.o
  CC      util/qemu-openpty.o
  CC      util/qemu-thread-posix.o
  CC      util/memfd.o
  CC      util/envlist.o
  CC      util/path.o
  CC      util/host-utils.o
  CC      util/module.o
  CC      util/bitmap.o
  CC      util/bitops.o
  CC      util/hbitmap.o
  CC      util/fifo8.o
  CC      util/acl.o
  CC      util/cacheinfo.o
  CC      util/error.o
  CC      util/qemu-error.o
  CC      util/id.o
  CC      util/iov.o
  CC      util/qemu-config.o
  CC      util/qemu-sockets.o
  CC      util/uri.o
  CC      util/notify.o
  CC      util/qemu-option.o
  CC      util/qemu-progress.o
  CC      util/keyval.o
  CC      util/hexdump.o
  CC      util/crc32c.o
  CC      util/uuid.o
  CC      util/throttle.o
  CC      util/getauxval.o
  CC      util/readline.o
  CC      util/rcu.o
  CC      util/qemu-coroutine.o
  CC      util/qemu-coroutine-lock.o
  CC      util/qemu-coroutine-io.o
  CC      util/qemu-coroutine-sleep.o
  CC      util/coroutine-ucontext.o
  CC      util/buffer.o
  CC      util/timed-average.o
  CC      util/base64.o
  CC      util/log.o
  CC      util/qht.o
  CC      util/qdist.o
  CC      util/range.o
  CC      util/stats64.o
  CC      util/systemd.o
  CC      trace-root.o
  CC      util/trace.o
  CC      crypto/trace.o
  CC      io/trace.o
  CC      migration/trace.o
  CC      block/trace.o
  CC      backends/trace.o
  CC      chardev/trace.o
  CC      hw/block/trace.o
  CC      hw/block/dataplane/trace.o
  CC      hw/char/trace.o
  CC      hw/intc/trace.o
  CC      hw/net/trace.o
  CC      hw/virtio/trace.o
  CC      hw/audio/trace.o
  CC      hw/misc/trace.o
  CC      hw/usb/trace.o
  CC      hw/nvram/trace.o
  CC      hw/scsi/trace.o
  CC      hw/display/trace.o
  CC      hw/input/trace.o
  CC      hw/timer/trace.o
  CC      hw/dma/trace.o
  CC      hw/sparc/trace.o
  CC      hw/sd/trace.o
  CC      hw/isa/trace.o
  CC      hw/mem/trace.o
  CC      hw/i386/trace.o
  CC      hw/i386/xen/trace.o
  CC      hw/9pfs/trace.o
  CC      hw/ppc/trace.o
  CC      hw/s390x/trace.o
  CC      hw/pci/trace.o
  CC      hw/vfio/trace.o
  CC      hw/acpi/trace.o
  CC      hw/arm/trace.o
  CC      hw/alpha/trace.o
  CC      hw/xen/trace.o
  CC      ui/trace.o
  CC      audio/trace.o
  CC      target/arm/trace.o
  CC      net/trace.o
  CC      target/i386/trace.o
  CC      target/mips/trace.o
  CC      target/sparc/trace.o
  CC      target/s390x/trace.o
  CC      target/ppc/trace.o
  CC      qom/trace.o
  CC      linux-user/trace.o
  CC      qapi/trace.o
  CC      accel/tcg/trace.o
  CC      accel/kvm/trace.o
  CC      nbd/trace.o
  CC      crypto/pbkdf-stub.o
  CC      stubs/arch-query-cpu-def.o
  CC      stubs/arch-query-cpu-model-expansion.o
  CC      stubs/arch-query-cpu-model-comparison.o
  CC      stubs/arch-query-cpu-model-baseline.o
  CC      stubs/bdrv-next-monitor-owned.o
  CC      stubs/blk-commit-all.o
  CC      stubs/blockdev-close-all-bdrv-states.o
  CC      stubs/clock-warp.o
  CC      stubs/cpu-get-clock.o
  CC      stubs/cpu-get-icount.o
  CC      stubs/dump.o
  CC      stubs/error-printf.o
  CC      stubs/fdset.o
  CC      stubs/gdbstub.o
  CC      stubs/get-vm-name.o
  CC      stubs/iothread.o
  CC      stubs/iothread-lock.o
  CC      stubs/is-daemonized.o
  CC      stubs/linux-aio.o
  CC      stubs/machine-init-done.o
  CC      stubs/migr-blocker.o
  CC      stubs/monitor.o
  CC      stubs/notify-event.o
  CC      stubs/qtest.o
  CC      stubs/replay.o
  CC      stubs/set-fd-handler.o
  CC      stubs/runstate-check.o
  CC      stubs/slirp.o
  CC      stubs/sysbus.o
  CC      stubs/trace-control.o
  CC      stubs/uuid.o
  CC      stubs/vm-stop.o
  CC      stubs/vmstate.o
  CC      stubs/qmp_pc_dimm_device_list.o
  CC      stubs/target-monitor-defs.o
  CC      stubs/target-get-monitor-def.o
  CC      stubs/pc_madt_cpu_entry.o
  CC      stubs/vmgenid.o
  CC      stubs/xen-hvm.o
  CC      stubs/xen-common.o
  CC      contrib/ivshmem-client/ivshmem-client.o
  CC      contrib/ivshmem-client/main.o
  CC      contrib/ivshmem-server/ivshmem-server.o
  CC      contrib/ivshmem-server/main.o
  CC      qemu-nbd.o
  CC      block.o
  CC      blockjob.o
  CC      qemu-io-cmds.o
  CC      replication.o
  CC      block/raw-format.o
  CC      block/qcow.o
  CC      block/vdi.o
  CC      block/vmdk.o
  CC      block/cloop.o
  CC      block/bochs.o
  CC      block/vpc.o
  CC      block/vvfat.o
  CC      block/dmg.o
  CC      block/qcow2.o
  CC      block/qcow2-refcount.o
  CC      block/qcow2-cluster.o
  CC      block/qcow2-snapshot.o
  CC      block/qcow2-cache.o
  CC      block/qed.o
  CC      block/qed-l2-cache.o
  CC      block/qed-table.o
  CC      block/qed-cluster.o
  CC      block/qed-check.o
  CC      block/vhdx.o
  CC      block/vhdx-endian.o
  CC      block/vhdx-log.o
  CC      block/quorum.o
  CC      block/parallels.o
  CC      block/blkdebug.o
  CC      block/blkverify.o
  CC      block/blkreplay.o
  CC      block/block-backend.o
  CC      block/snapshot.o
  CC      block/qapi.o
  CC      block/file-posix.o
  CC      block/linux-aio.o
  CC      block/null.o
  CC      block/mirror.o
  CC      block/commit.o
  CC      block/io.o
  CC      block/throttle-groups.o
  CC      block/nbd.o
  CC      block/nbd-client.o
  CC      block/sheepdog.o
  CC      block/iscsi-opts.o
  CC      block/accounting.o
  CC      block/dirty-bitmap.o
  CC      block/write-threshold.o
  CC      block/backup.o
  CC      block/replication.o
  CC      block/crypto.o
  CC      nbd/server.o
  CC      nbd/client.o
  CC      nbd/common.o
  CC      block/iscsi.o
  CC      block/nfs.o
  CC      block/curl.o
  CC      block/rbd.o
  CC      block/gluster.o
  CC      block/ssh.o
  CC      block/dmg-bz2.o
  CC      crypto/init.o
  CC      crypto/hash.o
  CC      crypto/hash-nettle.o
  CC      crypto/hmac.o
  CC      crypto/hmac-nettle.o
  CC      crypto/aes.o
  CC      crypto/desrfb.o
  CC      crypto/cipher.o
  CC      crypto/tlscreds.o
  CC      crypto/tlscredsanon.o
  CC      crypto/tlscredsx509.o
  CC      crypto/tlssession.o
  CC      crypto/secret.o
  CC      crypto/random-gnutls.o
  CC      crypto/pbkdf.o
  CC      crypto/pbkdf-nettle.o
  CC      crypto/ivgen.o
  CC      crypto/ivgen-essiv.o
  CC      crypto/ivgen-plain.o
  CC      crypto/ivgen-plain64.o
  CC      crypto/afsplit.o
  CC      crypto/xts.o
  CC      crypto/block.o
  CC      crypto/block-qcow.o
  CC      crypto/block-luks.o
  CC      io/channel.o
  CC      io/channel-command.o
  CC      io/channel-buffer.o
  CC      io/channel-file.o
  CC      io/channel-socket.o
  CC      io/channel-tls.o
  CC      io/channel-watch.o
  CC      io/channel-websock.o
  CC      io/channel-util.o
  CC      io/dns-resolver.o
  CC      io/task.o
  CC      qom/object.o
  CC      qom/container.o
  CC      qom/qom-qobject.o
  CC      qom/object_interfaces.o
  GEN     qemu-img-cmds.h
  CC      qemu-io.o
  CC      fsdev/virtfs-proxy-helper.o
  CC      fsdev/9p-marshal.o
  CC      fsdev/9p-iov-marshal.o
  CC      qemu-bridge-helper.o
  CC      blockdev.o
  CC      blockdev-nbd.o
  CC      bootdevice.o
  CC      iothread.o
  CC      qdev-monitor.o
  CC      os-posix.o
  CC      device-hotplug.o
  CC      bt-host.o
  CC      bt-vhci.o
  CC      dma-helpers.o
  CC      vl.o
  CC      tpm.o
  CC      device_tree.o
  CC      qmp-marshal.o
  CC      qmp.o
  CC      hmp.o
  CC      cpus-common.o
  CC      audio/audio.o
  CC      audio/noaudio.o
  CC      audio/wavaudio.o
  CC      audio/mixeng.o
  CC      audio/sdlaudio.o
  CC      audio/ossaudio.o
  CC      audio/wavcapture.o
  CC      backends/rng.o
  CC      backends/rng-egd.o
  CC      backends/rng-random.o
  CC      backends/tpm.o
  CC      backends/hostmem.o
  CC      backends/hostmem-ram.o
  CC      backends/hostmem-file.o
  CC      backends/cryptodev-builtin.o
  CC      backends/cryptodev.o
  CC      block/stream.o
  CC      chardev/msmouse.o
  CC      chardev/wctablet.o
  CC      chardev/testdev.o
  CC      chardev/baum.o
  CC      disas/alpha.o
  CC      disas/arm.o
  CXX     disas/arm-a64.o
  CC      disas/cris.o
  CC      disas/hppa.o
  CC      disas/i386.o
  CC      disas/m68k.o
  CC      disas/microblaze.o
  CC      disas/mips.o
  CC      disas/nios2.o
  CC      disas/moxie.o
  CC      disas/ppc.o
  CC      disas/s390.o
  CC      disas/sh4.o
  CC      disas/sparc.o
  CC      disas/lm32.o
  CXX     disas/libvixl/vixl/utils.o
  CXX     disas/libvixl/vixl/compiler-intrinsics.o
  CXX     disas/libvixl/vixl/a64/instructions-a64.o
  CXX     disas/libvixl/vixl/a64/decoder-a64.o
  CXX     disas/libvixl/vixl/a64/disasm-a64.o
  CC      fsdev/qemu-fsdev.o
  CC      fsdev/qemu-fsdev-opts.o
  CC      fsdev/qemu-fsdev-throttle.o
  CC      fsdev/qemu-fsdev-dummy.o
  CC      hw/9pfs/9p.o
  CC      hw/9pfs/9p-util.o
  CC      hw/9pfs/9p-local.o
  CC      hw/9pfs/9p-xattr.o
  CC      hw/9pfs/9p-posix-acl.o
  CC      hw/9pfs/9p-xattr-user.o
  CC      hw/9pfs/coth.o
  CC      hw/9pfs/cofs.o
  CC      hw/9pfs/codir.o
  CC      hw/9pfs/cofile.o
  CC      hw/9pfs/coxattr.o
  CC      hw/9pfs/9p-synth.o
  CC      hw/9pfs/9p-handle.o
  CC      hw/9pfs/9p-proxy.o
  CC      hw/acpi/core.o
  CC      hw/acpi/piix4.o
  CC      hw/acpi/pcihp.o
  CC      hw/acpi/ich9.o
  CC      hw/acpi/tco.o
  CC      hw/acpi/cpu_hotplug.o
  CC      hw/acpi/memory_hotplug.o
  CC      hw/acpi/cpu.o
  CC      hw/acpi/nvdimm.o
  CC      hw/acpi/vmgenid.o
  CC      hw/acpi/acpi_interface.o
  CC      hw/acpi/bios-linker-loader.o
  CC      hw/acpi/aml-build.o
  CC      hw/acpi/ipmi.o
  CC      hw/acpi/ipmi-stub.o
  CC      hw/acpi/acpi-stub.o
  CC      hw/audio/sb16.o
  CC      hw/audio/es1370.o
  CC      hw/audio/ac97.o
  CC      hw/audio/fmopl.o
  CC      hw/audio/adlib.o
  CC      hw/audio/gus.o
  CC      hw/audio/gusemu_hal.o
  CC      hw/audio/gusemu_mixer.o
  CC      hw/audio/cs4231a.o
  CC      hw/audio/intel-hda.o
  CC      hw/audio/hda-codec.o
  CC      hw/audio/pcspk.o
  CC      hw/audio/wm8750.o
  CC      hw/audio/pl041.o
  CC      hw/audio/lm4549.o
  CC      hw/audio/cs4231.o
  CC      hw/audio/marvell_88w8618.o
  CC      hw/audio/milkymist-ac97.o
  CC      hw/audio/soundhw.o
  CC      hw/block/block.o
  CC      hw/block/cdrom.o
  CC      hw/block/hd-geometry.o
  CC      hw/block/fdc.o
  CC      hw/block/m25p80.o
  CC      hw/block/nand.o
  CC      hw/block/pflash_cfi01.o
  CC      hw/block/pflash_cfi02.o
  CC      hw/block/ecc.o
  CC      hw/block/onenand.o
  CC      hw/block/nvme.o
  CC      hw/bt/core.o
  CC      hw/bt/l2cap.o
  CC      hw/bt/sdp.o
  CC      hw/bt/hci.o
  CC      hw/bt/hid.o
  CC      hw/bt/hci-csr.o
  CC      hw/char/ipoctal232.o
  CC      hw/char/parallel.o
  CC      hw/char/escc.o
  CC      hw/char/pl011.o
  CC      hw/char/serial-isa.o
  CC      hw/char/serial.o
  CC      hw/char/serial-pci.o
  CC      hw/char/virtio-console.o
  CC      hw/char/xilinx_uartlite.o
  CC      hw/char/cadence_uart.o
  CC      hw/char/etraxfs_ser.o
  CC      hw/char/debugcon.o
  CC      hw/char/grlib_apbuart.o
  CC      hw/char/imx_serial.o
  CC      hw/char/lm32_juart.o
  CC      hw/char/lm32_uart.o
  CC      hw/char/milkymist-uart.o
  CC      hw/char/sclpconsole.o
  CC      hw/char/sclpconsole-lm.o
  CC      hw/core/qdev-properties.o
  CC      hw/core/qdev.o
  CC      hw/core/bus.o
  CC      hw/core/reset.o
  CC      hw/core/fw-path-provider.o
  CC      hw/core/irq.o
  CC      hw/core/hotplug.o
  CC      hw/core/nmi.o
  CC      hw/core/empty_slot.o
  CC      hw/core/stream.o
  CC      hw/core/ptimer.o
  CC      hw/core/sysbus.o
  CC      hw/core/machine.o
  CC      hw/core/loader.o
  CC      hw/core/loader-fit.o
  CC      hw/core/qdev-properties-system.o
  CC      hw/core/register.o
  CC      hw/core/or-irq.o
  CC      hw/core/platform-bus.o
  CC      hw/cpu/core.o
  CC      hw/display/ads7846.o
  CC      hw/display/cirrus_vga.o
  CC      hw/display/g364fb.o
  CC      hw/display/jazz_led.o
  CC      hw/display/pl110.o
  CC      hw/display/ssd0303.o
  CC      hw/display/ssd0323.o
  CC      hw/display/vga-pci.o
  CC      hw/display/vga-isa.o
  CC      hw/display/vga-isa-mm.o
  CC      hw/display/vmware_vga.o
  CC      hw/display/blizzard.o
  CC      hw/display/exynos4210_fimd.o
  CC      hw/display/framebuffer.o
  CC      hw/display/milkymist-vgafb.o
  CC      hw/display/tc6393xb.o
  CC      hw/display/milkymist-tmu2.o
  CC      hw/dma/puv3_dma.o
  CC      hw/dma/rc4030.o
  CC      hw/dma/pl080.o
  CC      hw/dma/pl330.o
  CC      hw/dma/i82374.o
  CC      hw/dma/i8257.o
  CC      hw/dma/xilinx_axidma.o
  CC      hw/dma/xlnx-zynq-devcfg.o
  CC      hw/dma/etraxfs_dma.o
  CC      hw/dma/sparc32_dma.o
  CC      hw/dma/sun4m_iommu.o
  CC      hw/gpio/max7310.o
  CC      hw/gpio/pl061.o
  CC      hw/gpio/puv3_gpio.o
  CC      hw/gpio/zaurus.o
  CC      hw/gpio/mpc8xxx.o
  CC      hw/gpio/gpio_key.o
  CC      hw/i2c/core.o
  CC      hw/i2c/smbus.o
  CC      hw/i2c/smbus_eeprom.o
  CC      hw/i2c/i2c-ddc.o
  CC      hw/i2c/smbus_ich9.o
  CC      hw/i2c/versatile_i2c.o
  CC      hw/i2c/pm_smbus.o
  CC      hw/i2c/bitbang_i2c.o
  CC      hw/i2c/imx_i2c.o
  CC      hw/i2c/exynos4210_i2c.o
  CC      hw/i2c/aspeed_i2c.o
  CC      hw/ide/core.o
  CC      hw/ide/atapi.o
  CC      hw/ide/qdev.o
  CC      hw/ide/pci.o
  CC      hw/ide/isa.o
  CC      hw/ide/piix.o
  CC      hw/ide/cmd646.o
  CC      hw/ide/mmio.o
  CC      hw/ide/macio.o
  CC      hw/ide/microdrive.o
  CC      hw/ide/via.o
  CC      hw/ide/ahci.o
  CC      hw/ide/ich.o
  CC      hw/input/adb.o
  CC      hw/input/hid.o
  CC      hw/input/lm832x.o
  CC      hw/input/pckbd.o
  CC      hw/input/pl050.o
  CC      hw/input/ps2.o
  CC      hw/input/stellaris_input.o
  CC      hw/input/tsc2005.o
  CC      hw/input/vmmouse.o
  CC      hw/input/virtio-input.o
  CC      hw/input/virtio-input-hid.o
  CC      hw/intc/heathrow_pic.o
  CC      hw/input/virtio-input-host.o
  CC      hw/intc/i8259_common.o
  CC      hw/intc/i8259.o
  CC      hw/intc/pl190.o
  CC      hw/intc/xilinx_intc.o
  CC      hw/intc/puv3_intc.o
  CC      hw/intc/etraxfs_pic.o
  CC      hw/intc/imx_avic.o
  CC      hw/intc/lm32_pic.o
  CC      hw/intc/realview_gic.o
  CC      hw/intc/slavio_intctl.o
  CC      hw/intc/ioapic_common.o
  CC      hw/intc/arm_gic_common.o
  CC      hw/intc/arm_gic.o
  CC      hw/intc/arm_gicv2m.o
  CC      hw/intc/arm_gicv3_common.o
  CC      hw/intc/arm_gicv3.o
  CC      hw/intc/arm_gicv3_dist.o
  CC      hw/intc/arm_gicv3_redist.o
  CC      hw/intc/arm_gicv3_its_common.o
  CC      hw/intc/openpic.o
  CC      hw/intc/intc.o
  CC      hw/ipack/ipack.o
  CC      hw/ipack/tpci200.o
  CC      hw/ipmi/ipmi.o
  CC      hw/ipmi/ipmi_bmc_sim.o
  CC      hw/ipmi/ipmi_bmc_extern.o
  CC      hw/ipmi/isa_ipmi_kcs.o
  CC      hw/ipmi/isa_ipmi_bt.o
  CC      hw/isa/isa-bus.o
  CC      hw/isa/apm.o
  CC      hw/isa/i82378.o
  CC      hw/isa/pc87312.o
  CC      hw/isa/piix4.o
  CC      hw/isa/vt82c686.o
  CC      hw/mem/pc-dimm.o
  CC      hw/mem/nvdimm.o
  CC      hw/misc/applesmc.o
  CC      hw/misc/max111x.o
  CC      hw/misc/tmp105.o
  CC      hw/misc/tmp421.o
  CC      hw/misc/debugexit.o
  CC      hw/misc/sga.o
  CC      hw/misc/pc-testdev.o
  CC      hw/misc/pci-testdev.o
  CC      hw/misc/edu.o
  CC      hw/misc/unimp.o
  CC      hw/misc/arm_l2x0.o
  CC      hw/misc/arm_integrator_debug.o
  CC      hw/misc/a9scu.o
  CC      hw/misc/arm11scu.o
  CC      hw/misc/puv3_pm.o
  CC      hw/misc/macio/macio.o
  CC      hw/misc/macio/cuda.o
  CC      hw/misc/macio/mac_dbdma.o
  CC      hw/net/dp8393x.o
  CC      hw/net/ne2000.o
  CC      hw/net/eepro100.o
  CC      hw/net/pcnet-pci.o
  CC      hw/net/pcnet.o
  CC      hw/net/e1000.o
  CC      hw/net/e1000x_common.o
  CC      hw/net/net_tx_pkt.o
  CC      hw/net/net_rx_pkt.o
  CC      hw/net/e1000e.o
  CC      hw/net/e1000e_core.o
  CC      hw/net/rtl8139.o
  CC      hw/net/vmxnet3.o
  CC      hw/net/smc91c111.o
  CC      hw/net/lan9118.o
  CC      hw/net/ne2000-isa.o
  CC      hw/net/opencores_eth.o
  CC      hw/net/xgmac.o
  CC      hw/net/mipsnet.o
  CC      hw/net/xilinx_axienet.o
  CC      hw/net/imx_fec.o
  CC      hw/net/allwinner_emac.o
  CC      hw/net/cadence_gem.o
  CC      hw/net/stellaris_enet.o
  CC      hw/net/lance.o
  CC      hw/net/ftgmac100.o
  CC      hw/net/rocker/rocker.o
  CC      hw/net/rocker/rocker_fp.o
  CC      hw/net/rocker/rocker_desc.o
  CC      hw/net/rocker/rocker_world.o
  CC      hw/net/rocker/rocker_of_dpa.o
  CC      hw/nvram/ds1225y.o
  CC      hw/nvram/eeprom93xx.o
  CC      hw/nvram/fw_cfg.o
  CC      hw/nvram/chrp_nvram.o
  CC      hw/nvram/mac_nvram.o
  CC      hw/pci-bridge/pci_bridge_dev.o
  CC      hw/pci-bridge/pcie_root_port.o
  CC      hw/pci-bridge/gen_pcie_root_port.o
  CC      hw/pci-bridge/pci_expander_bridge.o
  CC      hw/pci-bridge/xio3130_upstream.o
  CC      hw/pci-bridge/xio3130_downstream.o
  CC      hw/pci-bridge/ioh3420.o
  CC      hw/pci-bridge/i82801b11.o
  CC      hw/pci-bridge/dec.o
  CC      hw/pci-host/pam.o
  CC      hw/pci-host/prep.o
  CC      hw/pci-host/grackle.o
  CC      hw/pci-host/uninorth.o
  CC      hw/pci-host/ppce500.o
  CC      hw/pci-host/versatile.o
  CC      hw/pci-host/apb.o
  CC      hw/pci-host/bonito.o
  CC      hw/pci-host/piix.o
  CC      hw/pci-host/q35.o
  CC      hw/pci-host/gpex.o
  CC      hw/pci-host/xilinx-pcie.o
  CC      hw/pci/pci.o
  CC      hw/pci/pci_bridge.o
  CC      hw/pci/msix.o
  CC      hw/pci/msi.o
  CC      hw/pci/shpc.o
  CC      hw/pci/pci_host.o
  CC      hw/pci/slotid_cap.o
  CC      hw/pci/pcie_host.o
  CC      hw/pci/pcie.o
  CC      hw/pci/pcie_aer.o
  CC      hw/pci/pcie_port.o
  CC      hw/pci/pci-stub.o
  CC      hw/pcmcia/pcmcia.o
  CC      hw/scsi/scsi-disk.o
  CC      hw/scsi/scsi-generic.o
  CC      hw/scsi/scsi-bus.o
  CC      hw/scsi/lsi53c895a.o
  CC      hw/scsi/mptsas.o
  CC      hw/scsi/mptconfig.o
  CC      hw/scsi/mptendian.o
  CC      hw/scsi/megasas.o
  CC      hw/scsi/vmw_pvscsi.o
  CC      hw/scsi/esp.o
  CC      hw/scsi/esp-pci.o
  CC      hw/sd/pl181.o
  CC      hw/sd/ssi-sd.o
  CC      hw/sd/sd.o
  CC      hw/sd/core.o
  CC      hw/sd/sdhci.o
  CC      hw/smbios/smbios.o
  CC      hw/smbios/smbios_type_38.o
  CC      hw/smbios/smbios-stub.o
  CC      hw/smbios/smbios_type_38-stub.o
  CC      hw/ssi/pl022.o
  CC      hw/ssi/ssi.o
  CC      hw/ssi/xilinx_spi.o
  CC      hw/ssi/xilinx_spips.o
  CC      hw/ssi/aspeed_smc.o
  CC      hw/ssi/stm32f2xx_spi.o
  CC      hw/timer/arm_mptimer.o
  CC      hw/timer/arm_timer.o
  CC      hw/timer/armv7m_systick.o
  CC      hw/timer/a9gtimer.o
  CC      hw/timer/cadence_ttc.o
  CC      hw/timer/ds1338.o
  CC      hw/timer/hpet.o
  CC      hw/timer/i8254_common.o
  CC      hw/timer/i8254.o
  CC      hw/timer/m48t59.o
  CC      hw/timer/m48t59-isa.o
  CC      hw/timer/pl031.o
  CC      hw/timer/puv3_ost.o
  CC      hw/timer/twl92230.o
  CC      hw/timer/xilinx_timer.o
  CC      hw/timer/slavio_timer.o
  CC      hw/timer/etraxfs_timer.o
  CC      hw/timer/grlib_gptimer.o
  CC      hw/timer/imx_epit.o
  CC      hw/timer/imx_gpt.o
  CC      hw/timer/lm32_timer.o
  CC      hw/timer/milkymist-sysctl.o
  CC      hw/timer/stm32f2xx_timer.o
  CC      hw/timer/aspeed_timer.o
  CC      hw/timer/sun4v-rtc.o
  CC      hw/tpm/tpm_tis.o
  CC      hw/usb/core.o
  CC      hw/usb/bus.o
  CC      hw/usb/combined-packet.o
  CC      hw/usb/libhw.o
  CC      hw/usb/desc.o
  CC      hw/usb/desc-msos.o
  CC      hw/usb/hcd-uhci.o
  CC      hw/usb/hcd-ehci.o
  CC      hw/usb/hcd-ohci.o
  CC      hw/usb/hcd-ehci-pci.o
  CC      hw/usb/hcd-ehci-sysbus.o
  CC      hw/usb/hcd-xhci.o
  CC      hw/usb/hcd-xhci-nec.o
  CC      hw/usb/dev-hub.o
  CC      hw/usb/hcd-musb.o
  CC      hw/usb/dev-hid.o
  CC      hw/usb/dev-wacom.o
  CC      hw/usb/dev-storage.o
  CC      hw/usb/dev-uas.o
  CC      hw/usb/dev-audio.o
  CC      hw/usb/dev-serial.o
  CC      hw/usb/dev-network.o
  CC      hw/usb/dev-bluetooth.o
  CC      hw/usb/dev-smartcard-reader.o
  CC      hw/usb/ccid-card-passthru.o
  CC      hw/usb/ccid-card-emulated.o
  CC      hw/usb/dev-mtp.o
  CC      hw/usb/redirect.o
  CC      hw/usb/quirks.o
  CC      hw/usb/host-libusb.o
  CC      hw/usb/host-legacy.o
  CC      hw/virtio/virtio-rng.o
  CC      hw/virtio/virtio-pci.o
  CC      hw/virtio/virtio-bus.o
  CC      hw/virtio/virtio-mmio.o
  CC      hw/virtio/vhost-stub.o
  CC      hw/watchdog/watchdog.o
  CC      hw/watchdog/wdt_ib700.o
  CC      hw/watchdog/wdt_i6300esb.o
  CC      hw/watchdog/wdt_diag288.o
  CC      hw/watchdog/wdt_aspeed.o
  CC      migration/socket.o
  CC      migration/migration.o
  CC      migration/fd.o
  CC      migration/exec.o
  CC      migration/tls.o
  CC      migration/channel.o
  CC      migration/savevm.o
  CC      migration/colo-comm.o
  CC      migration/colo.o
  CC      migration/colo-failover.o
  CC      migration/vmstate.o
  CC      migration/vmstate-types.o
  CC      migration/page_cache.o
  CC      migration/qemu-file.o
  CC      migration/global_state.o
  CC      migration/qemu-file-channel.o
  CC      migration/xbzrle.o
  CC      migration/postcopy-ram.o
  CC      migration/qjson.o
  CC      migration/block.o
  CC      net/net.o
  CC      net/queue.o
  CC      net/checksum.o
  CC      net/util.o
  CC      net/hub.o
  CC      net/socket.o
  CC      net/dump.o
  CC      net/eth.o
  CC      net/l2tpv3.o
  CC      net/vhost-user.o
  CC      net/slirp.o
  CC      net/filter.o
  CC      net/filter-buffer.o
  CC      net/filter-mirror.o
  CC      net/colo-compare.o
  CC      net/colo.o
  CC      net/filter-rewriter.o
  CC      net/filter-replay.o
  CC      net/tap.o
  CC      net/tap-linux.o
  CC      replay/replay.o
  CC      qom/cpu.o
  CC      replay/replay-internal.o
  CC      replay/replay-events.o
  CC      replay/replay-time.o
  CC      replay/replay-input.o
  CC      replay/replay-char.o
  CC      replay/replay-snapshot.o
  CC      replay/replay-net.o
  CC      replay/replay-audio.o
  CC      slirp/cksum.o
  CC      slirp/if.o
  CC      slirp/ip_icmp.o
  CC      slirp/ip6_icmp.o
  CC      slirp/ip6_input.o
  CC      slirp/ip6_output.o
  CC      slirp/ip_input.o
  CC      slirp/ip_output.o
  CC      slirp/dnssearch.o
  CC      slirp/dhcpv6.o
  CC      slirp/slirp.o
  CC      slirp/mbuf.o
  CC      slirp/misc.o
  CC      slirp/sbuf.o
  CC      slirp/socket.o
  CC      slirp/tcp_input.o
  CC      slirp/tcp_output.o
  CC      slirp/tcp_subr.o
  CC      slirp/tcp_timer.o
  CC      slirp/udp.o
  CC      slirp/udp6.o
  CC      slirp/bootp.o
  CC      slirp/tftp.o
  CC      slirp/arp_table.o
  CC      slirp/ndp_table.o
  CC      slirp/ncsi.o
  CC      ui/console.o
  CC      ui/keymaps.o
  CC      ui/cursor.o
  CC      ui/qemu-pixman.o
  CC      ui/input.o
  CC      ui/input-keymap.o
  CC      ui/input-legacy.o
  CC      ui/input-linux.o
  CC      ui/sdl2.o
  CC      ui/sdl2-input.o
  CC      ui/sdl2-2d.o
  CC      ui/sdl2-gl.o
  CC      ui/x_keymap.o
  CC      ui/curses.o
  CC      ui/vnc.o
  CC      ui/vnc-enc-zlib.o
  CC      ui/vnc-enc-hextile.o
  CC      ui/vnc-enc-tight.o
  CC      ui/vnc-palette.o
  CC      ui/vnc-enc-zrle.o
  CC      ui/vnc-auth-vencrypt.o
  CC      ui/vnc-auth-sasl.o
  CC      ui/vnc-ws.o
  CC      ui/vnc-jobs.o
  CC      ui/gtk.o
  CC      ui/shader.o
  VERT    ui/shader/texture-blit-vert.h
  FRAG    ui/shader/texture-blit-frag.h
  CC      ui/egl-helpers.o
  CC      ui/egl-context.o
  CC      ui/egl-headless.o
  CC      ui/gtk-gl-area.o
  CC      chardev/char.o
  CC      chardev/char-fd.o
  CC      chardev/char-fe.o
  CC      chardev/char-file.o
  CC      chardev/char-io.o
  CC      chardev/char-mux.o
  CC      chardev/char-null.o
  CC      chardev/char-parallel.o
  CC      chardev/char-pty.o
  CC      chardev/char-pipe.o
  CC      chardev/char-ringbuf.o
  CC      chardev/char-serial.o
  CC      chardev/char-socket.o
  CC      chardev/char-stdio.o
  CC      chardev/char-udp.o
  LINK    tests/qemu-iotests/socket_scm_helper
  GEN     qemu-doc.html
  CCAS    s390-ccw/start.o
  GEN     qemu-doc.txt
  GEN     qemu.1
  CC      s390-ccw/main.o
  CC      s390-ccw/bootmap.o
  CC      s390-ccw/sclp.o
  GEN     docs/interop/qemu-qmp-ref.html
  CC      s390-ccw/virtio.o
  GEN     docs/interop/qemu-qmp-ref.txt
In file included from /var/tmp/patchew-tester-tmp-wp4_jugh/src/pc-bios/s390-ccw/virtio.c:12:0:
/var/tmp/patchew-tester-tmp-wp4_jugh/src/pc-bios/s390-ccw/virtio.c: In function ‘virtio_setup_ccw’:
/var/tmp/patchew-tester-tmp-wp4_jugh/src/pc-bios/s390-ccw/s390-ccw.h:47:30: error: ‘sizeof’ on array function parameter ‘guestfeats’ will return size of ‘uint32_t * {aka unsigned int *}’ [-Werror=sizeof-array-argument]
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
                              ^
/var/tmp/patchew-tester-tmp-wp4_jugh/src/pc-bios/s390-ccw/virtio.c:291:21: note: in expansion of macro ‘ARRAY_SIZE’
     for (i = 0; i < ARRAY_SIZE(guestfeats); i++) {
                     ^~~~~~~~~~
/var/tmp/patchew-tester-tmp-wp4_jugh/src/pc-bios/s390-ccw/virtio.c:251:44: note: declared here
 void virtio_setup_ccw(VDev *vdev, uint32_t guestfeats[2])
                                            ^~~~~~~~~~
cc1: all warnings being treated as errors
/var/tmp/patchew-tester-tmp-wp4_jugh/src/rules.mak:66: recipe for target 'virtio.o' failed
make[1]: *** [virtio.o] Error 1
Makefile:355: recipe for target 'romsubdir-s390-ccw' failed
make: *** [romsubdir-s390-ccw] Error 2
make: *** Waiting for unfinished jobs....
=== OUTPUT END ===

Test command exited with code: 2


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Re: [Qemu-devel] [PATCH v3 00/10] Implement network booting directly into the s390-ccw BIOS

[no-reply]

Hi,

This series seems to have some coding style problems. See output below for
more information:

Message-id: 1499700760-4777-1-git-send-email-thuth@redhat.com
Type: series
Subject: [Qemu-devel] [PATCH v3 00/10] Implement network booting directly into the s390-ccw BIOS

=== TEST SCRIPT BEGIN ===
#!/bin/bash

BASE=base
n=1
total=$(git log --oneline $BASE.. | wc -l)
failed=0

git config --local diff.renamelimit 0
git config --local diff.renames True

commits="$(git log --format=%H --reverse $BASE..)"
for c in $commits; do
    echo "Checking PATCH $n/$total: $(git log -n 1 --format=%s $c)..."
    if ! git show $c --format=email | ./scripts/checkpatch.pl --mailback -; then
        failed=1
        echo
    fi
    n=$((n+1))
done

exit $failed
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
7a8436f pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP load
5b80edd pc-bios/s390-ccw: Add virtio-net driver code
60c08d0 pc-bios/s390-ccw: Add core files for the network bootloading program
ff6bc23 roms/SLOF: Update submodule to latest status
10ae122 pc-bios/s390-ccw: Add code for virtio feature negotiation
b466c2a pc-bios/s390-ccw: Move byteswap functions to a separate header
834518a pc-bios/s390-ccw: Add a write() function for stdio
2f7123d pc-bios/s390-ccw: Move virtio-block related functions into a separate file
9798a47 pc-bios/s390-ccw: Move ebc2asc to sclp.c
160d33a pc-bios/s390-ccw: Move libc functions to separate header

=== OUTPUT BEGIN ===
Checking PATCH 1/10: pc-bios/s390-ccw: Move libc functions to separate header...
Checking PATCH 2/10: pc-bios/s390-ccw: Move ebc2asc to sclp.c...
Checking PATCH 3/10: pc-bios/s390-ccw: Move virtio-block related functions into a separate file...
Checking PATCH 4/10: pc-bios/s390-ccw: Add a write() function for stdio...
ERROR: externs should be avoided in .c files
#23: FILE: pc-bios/s390-ccw/sclp.c:15:
+long write(int fd, const void *buf, size_t len);

total: 1 errors, 0 warnings, 37 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 5/10: pc-bios/s390-ccw: Move byteswap functions to a separate header...
Checking PATCH 6/10: pc-bios/s390-ccw: Add code for virtio feature negotiation...
Checking PATCH 7/10: roms/SLOF: Update submodule to latest status...
Checking PATCH 8/10: pc-bios/s390-ccw: Add core files for the network bootloading program...
ERROR: externs should be avoided in .c files
#120: FILE: pc-bios/s390-ccw/netmain.c:26:
+extern char _start[];

ERROR: externs should be avoided in .c files
#123: FILE: pc-bios/s390-ccw/netmain.c:29:
+IplParameterBlock iplb __attribute__((aligned(PAGE_SIZE)));

total: 2 errors, 0 warnings, 202 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 9/10: pc-bios/s390-ccw: Add virtio-net driver code...
Checking PATCH 10/10: pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP load...
=== OUTPUT END ===

Test command exited with code: 1


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