From: "Jason J. Herne" <jjherne@linux.ibm.com>
To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org, cohuck@redhat.com,
pasic@linux.ibm.com, alifm@linux.ibm.com, borntraeger@de.ibm.com
Subject: [Qemu-devel] [PATCH 08/15] s390-bios: Map low core memory
Date: Tue, 29 Jan 2019 08:29:15 -0500 [thread overview]
Message-ID: <1548768562-20007-9-git-send-email-jjherne@linux.ibm.com> (raw)
In-Reply-To: <1548768562-20007-1-git-send-email-jjherne@linux.ibm.com>
Create a new header for basic architecture specific definitions and add a
mapping of low core memory. This mapping will be used by the real dasd boot
process.
Signed-off-by: Jason J. Herne <jjherne@linux.ibm.com>
---
pc-bios/s390-ccw/main.c | 2 +
pc-bios/s390-ccw/s390-arch.h | 100 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 102 insertions(+)
create mode 100644 pc-bios/s390-ccw/s390-arch.h
diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
index 1bc61b5..fa90aa3 100644
--- a/pc-bios/s390-ccw/main.c
+++ b/pc-bios/s390-ccw/main.c
@@ -9,6 +9,7 @@
*/
#include "libc.h"
+#include "s390-arch.h"
#include "s390-ccw.h"
#include "cio.h"
#include "virtio.h"
@@ -19,6 +20,7 @@ static char loadparm_str[LOADPARM_LEN + 1] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
QemuIplParameters qipl;
IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE)));
static bool have_iplb;
+const LowCore *lowcore; /* Yes, this *is* a pointer to address 0 */
#define LOADPARM_PROMPT "PROMPT "
#define LOADPARM_EMPTY " "
diff --git a/pc-bios/s390-ccw/s390-arch.h b/pc-bios/s390-ccw/s390-arch.h
new file mode 100644
index 0000000..47eaa04
--- /dev/null
+++ b/pc-bios/s390-ccw/s390-arch.h
@@ -0,0 +1,100 @@
+/*
+ * S390 Basic Architecture
+ *
+ * Copyright (c) 2018 Jason J. Herne <jjherne@us.ibm.com>
+ *
+ * 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.
+ */
+
+#ifndef S390_ARCH_H
+#define S390_ARCH_H
+
+typedef struct PSW {
+ uint64_t mask;
+ uint64_t addr;
+} __attribute__ ((packed, aligned(8))) PSW;
+
+/* Older PSW format used by LPSW instruction */
+typedef struct PSWLegacy {
+ uint32_t mask;
+ uint32_t addr;
+} __attribute__ ((packed, aligned(8))) PSWLegacy;
+
+/* s390 psw bit masks */
+#define PSW_MASK_IOINT 0x0200000000000000ULL
+#define PSW_MASK_WAIT 0x0002000000000000ULL
+#define PSW_MASK_EAMODE 0x0000000100000000ULL
+#define PSW_MASK_BAMODE 0x0000000080000000ULL
+#define PSW_MASK_ZMODE (PSW_MASK_EAMODE | PSW_MASK_BAMODE)
+
+/* Low core mapping */
+typedef struct LowCore {
+ /* prefix area: defined by architecture */
+ uint64_t ipl_psw; /* 0x000 */
+ uint32_t ccw1[2]; /* 0x008 */
+ uint32_t ccw2[2]; /* 0x010 */
+ uint8_t pad1[0x80 - 0x18]; /* 0x018 */
+ uint32_t ext_params; /* 0x080 */
+ uint16_t cpu_addr; /* 0x084 */
+ uint16_t ext_int_code; /* 0x086 */
+ uint16_t svc_ilen; /* 0x088 */
+ uint16_t svc_code; /* 0x08a */
+ uint16_t pgm_ilen; /* 0x08c */
+ uint16_t pgm_code; /* 0x08e */
+ uint32_t data_exc_code; /* 0x090 */
+ uint16_t mon_class_num; /* 0x094 */
+ uint16_t per_perc_atmid; /* 0x096 */
+ uint64_t per_address; /* 0x098 */
+ uint8_t exc_access_id; /* 0x0a0 */
+ uint8_t per_access_id; /* 0x0a1 */
+ uint8_t op_access_id; /* 0x0a2 */
+ uint8_t ar_access_id; /* 0x0a3 */
+ uint8_t pad2[0xA8 - 0xA4]; /* 0x0a4 */
+ uint64_t trans_exc_code; /* 0x0a8 */
+ uint64_t monitor_code; /* 0x0b0 */
+ uint16_t subchannel_id; /* 0x0b8 */
+ uint16_t subchannel_nr; /* 0x0ba */
+ uint32_t io_int_parm; /* 0x0bc */
+ uint32_t io_int_word; /* 0x0c0 */
+ uint8_t pad3[0xc8 - 0xc4]; /* 0x0c4 */
+ uint32_t stfl_fac_list; /* 0x0c8 */
+ uint8_t pad4[0xe8 - 0xcc]; /* 0x0cc */
+ uint64_t mcic; /* 0x0e8 */
+ uint8_t pad5[0xf4 - 0xf0]; /* 0x0f0 */
+ uint32_t external_damage_code; /* 0x0f4 */
+ uint64_t failing_storage_address; /* 0x0f8 */
+ uint8_t pad6[0x110 - 0x100]; /* 0x100 */
+ uint64_t per_breaking_event_addr; /* 0x110 */
+ uint8_t pad7[0x120 - 0x118]; /* 0x118 */
+ PSW restart_old_psw; /* 0x120 */
+ PSW external_old_psw; /* 0x130 */
+ PSW svc_old_psw; /* 0x140 */
+ PSW program_old_psw; /* 0x150 */
+ PSW mcck_old_psw; /* 0x160 */
+ PSW io_old_psw; /* 0x170 */
+ uint8_t pad8[0x1a0 - 0x180]; /* 0x180 */
+ PSW restart_new_psw; /* 0x1a0 */
+ PSW external_new_psw; /* 0x1b0 */
+ PSW svc_new_psw; /* 0x1c0 */
+ PSW program_new_psw; /* 0x1d0 */
+ PSW mcck_new_psw; /* 0x1e0 */
+ PSW io_new_psw; /* 0x1f0 */
+ PSW return_psw; /* 0x200 */
+ uint8_t irb[64]; /* 0x210 */
+ uint64_t sync_enter_timer; /* 0x250 */
+ uint64_t async_enter_timer; /* 0x258 */
+ uint64_t exit_timer; /* 0x260 */
+ uint64_t last_update_timer; /* 0x268 */
+ uint64_t user_timer; /* 0x270 */
+ uint64_t system_timer; /* 0x278 */
+ uint64_t last_update_clock; /* 0x280 */
+ uint64_t steal_clock; /* 0x288 */
+ PSW return_mcck_psw; /* 0x290 */
+ uint8_t pad9[0xc00 - 0x2a0]; /* 0x2a0 */
+} __attribute__((packed, aligned(8192))) LowCore;
+
+extern const LowCore *lowcore;
+
+#endif
--
2.7.4
next prev parent reply other threads:[~2019-01-29 13:29 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-29 13:29 [Qemu-devel] [PATCH 00/15] s390: vfio-ccw dasd ipl support Jason J. Herne
2019-01-29 13:29 ` [Qemu-devel] [PATCH 01/15] s390 vfio-ccw: Add bootindex property and IPLB data Jason J. Herne
2019-01-30 16:56 ` Cornelia Huck
2019-01-30 20:12 ` Jason J. Herne
2019-01-30 22:21 ` Farhan Ali
2019-02-08 16:07 ` Jason J. Herne
2019-01-31 18:20 ` Cornelia Huck
2019-02-04 10:26 ` Cornelia Huck
2019-02-13 13:41 ` Jason J. Herne
2019-02-13 14:52 ` Cornelia Huck
2019-02-06 11:30 ` [Qemu-devel] [qemu-s390x] " Thomas Huth
2019-02-08 16:04 ` Jason J. Herne
2019-02-11 8:15 ` Cornelia Huck
2019-02-11 8:39 ` Thomas Huth
2019-01-29 13:29 ` [Qemu-devel] [PATCH 02/15] s390-bios: decouple cio setup from virtio Jason J. Herne
2019-01-30 22:23 ` Farhan Ali
2019-02-04 10:28 ` Cornelia Huck
2019-02-05 9:55 ` [Qemu-devel] [qemu-s390x] " Thomas Huth
2019-01-29 13:29 ` [Qemu-devel] [PATCH 03/15] s390-bios: decouple common boot logic " Jason J. Herne
2019-01-30 22:27 ` Farhan Ali
2019-02-04 10:31 ` Cornelia Huck
2019-01-29 13:29 ` [Qemu-devel] [PATCH 04/15] s390-bios: Extend find_dev() for non-virtio devices Jason J. Herne
2019-02-04 10:33 ` Cornelia Huck
2019-02-11 16:38 ` [Qemu-devel] [qemu-s390x] " Thomas Huth
2019-02-13 13:59 ` Jason J. Herne
2019-03-04 19:23 ` Thomas Huth
2019-01-29 13:29 ` [Qemu-devel] [PATCH 05/15] s390-bios: Factor finding boot device out of virtio code path Jason J. Herne
2019-01-31 13:44 ` Farhan Ali
2019-02-04 10:45 ` Cornelia Huck
2019-02-11 17:57 ` Jason J. Herne
2019-02-12 9:32 ` Cornelia Huck
2019-01-29 13:29 ` [Qemu-devel] [PATCH 06/15] s390-bios: Clean up cio.h Jason J. Herne
2019-01-31 14:23 ` Farhan Ali
2019-02-04 10:48 ` Cornelia Huck
2019-02-12 12:32 ` [Qemu-devel] [qemu-s390x] " Thomas Huth
2019-01-29 13:29 ` [Qemu-devel] [PATCH 07/15] s390-bios: Decouple channel i/o logic from virtio Jason J. Herne
2019-01-31 14:38 ` Farhan Ali
2019-01-31 14:45 ` Jason J. Herne
2019-02-04 10:57 ` Cornelia Huck
2019-02-13 14:40 ` Jason J. Herne
2019-01-29 13:29 ` Jason J. Herne [this message]
2019-02-12 12:47 ` [Qemu-devel] [qemu-s390x] [PATCH 08/15] s390-bios: Map low core memory Thomas Huth
2019-02-18 15:40 ` Jason J. Herne
2019-02-18 15:49 ` Cornelia Huck
2019-02-18 16:52 ` Thomas Huth
2019-01-29 13:29 ` [Qemu-devel] [PATCH 09/15] s390-bios: ptr2u32 and u32toptr Jason J. Herne
2019-02-04 11:03 ` Cornelia Huck
2019-02-12 12:50 ` [Qemu-devel] [qemu-s390x] " Thomas Huth
2019-01-29 13:29 ` [Qemu-devel] [PATCH 10/15] s390-bios: Support for running format-0/1 channel programs Jason J. Herne
2019-01-31 17:31 ` Farhan Ali
2019-02-04 11:13 ` Cornelia Huck
2019-02-04 19:29 ` Farhan Ali
2019-02-05 10:18 ` Cornelia Huck
2019-02-12 13:10 ` Halil Pasic
2019-02-27 13:35 ` Jason J. Herne
2019-02-27 14:07 ` Cornelia Huck
2019-02-27 13:32 ` Jason J. Herne
2019-02-27 14:06 ` Cornelia Huck
2019-02-04 11:24 ` Cornelia Huck
2019-02-21 18:01 ` Jason J. Herne
2019-02-22 8:35 ` Cornelia Huck
2019-01-29 13:29 ` [Qemu-devel] [PATCH 11/15] s390-bios: cio error handling Jason J. Herne
2019-02-04 11:41 ` Cornelia Huck
2019-02-28 15:59 ` Jason J. Herne
2019-02-28 16:11 ` Cornelia Huck
2019-01-29 13:29 ` [Qemu-devel] [PATCH 12/15] s390-bios: Refactor virtio to run channel programs via cio Jason J. Herne
2019-02-04 11:44 ` Cornelia Huck
2019-02-25 13:20 ` Jason J. Herne
2019-02-25 17:07 ` Cornelia Huck
2019-01-29 13:29 ` [Qemu-devel] [PATCH 13/15] s390-bios: Use control unit type to determine boot method Jason J. Herne
2019-02-04 11:46 ` Cornelia Huck
2019-01-29 13:29 ` [Qemu-devel] [PATCH 14/15] s390-bios: Add channel command codes/structs needed for dasd-ipl Jason J. Herne
2019-02-04 11:47 ` Cornelia Huck
2019-01-29 13:29 ` [Qemu-devel] [PATCH 15/15] s390-bios: Support booting from real dasd device Jason J. Herne
2019-01-31 18:23 ` Cornelia Huck
2019-02-04 12:02 ` Cornelia Huck
2019-02-19 14:57 ` Jason J. Herne
2019-02-21 2:52 ` [Qemu-devel] [qemu-s390x] " Eric Farman
2019-02-21 13:22 ` Jason J. Herne
2019-01-29 16:40 ` [Qemu-devel] [qemu-s390x] [PATCH 00/15] s390: vfio-ccw dasd ipl support Jason J. Herne
2019-01-31 18:10 ` [Qemu-devel] " no-reply
-- strict thread matches above, loose matches on Subject: below --
2018-12-12 14:11 Jason J. Herne
2018-12-12 14:11 ` [Qemu-devel] [PATCH 08/15] s390-bios: Map low core memory Jason J. Herne
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