[PATCH v8 00/10] acpi: i386 tweaks

[PATCH v8 00/10] acpi: i386 tweaks

[Gerd Hoffmann]

First batch of microvm patches, some generic acpi stuff.
Split the acpi-build.c monster, specifically split the
pc and q35 and pci bits into a separate file which we
can skip building at some point in the future.

v2 changes: leave acpi-build.c largely as-is, move useful
bits to other places to allow them being reused, specifically:

 * move isa device generator functions to individual isa devices.
 * move fw_cfg generator function to fw_cfg.c

v3 changes: fix rtc, support multiple lpt devices.

v4 changes:
 * drop merged patches.
 * split rtc crs change to separata patch.
 * added two cleanup patches.
 * picked up ack & review tags.

v5 changes:
 * add comment for rtc crs update.
 * add even more cleanup patches.
 * picked up ack & review tags.

v6 changes:
 * floppy: move cmos_get_fd_drive_type.
 * picked up ack & review tags.

v7 changes:
 * rebased to mst/pci branch, resolved stubs conflict.
 * dropped patches already queued up in mst/pci.
 * added missing sign-off.
 * picked up ack & review tags.

v8 changes:
 * (re-)add patch to allow acpi table changes

take care,
  Gerd

Gerd Hoffmann (10):
  qtest: allow DSDT acpi table changes
  acpi: move aml builder code for floppy device
  floppy: make isa_fdc_get_drive_max_chs static
  floppy: move cmos_get_fd_drive_type() from pc
  acpi: move aml builder code for i8042 (kbd+mouse) device
  acpi: factor out fw_cfg_add_acpi_dsdt()
  acpi: simplify build_isa_devices_aml()
  acpi: drop serial/parallel enable bits from dsdt
  acpi: drop build_piix4_pm()
  acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.

 hw/i386/fw_cfg.h                            |   1 +
 include/hw/block/fdc.h                      |   3 +-
 include/hw/i386/pc.h                        |   1 -
 tests/qtest/bios-tables-test-allowed-diff.h |  17 ++
 hw/block/fdc.c                              | 111 +++++++++-
 hw/i386/acpi-build.c                        | 211 +-------------------
 hw/i386/fw_cfg.c                            |  28 +++
 hw/i386/pc.c                                |  25 ---
 hw/input/pckbd.c                            |  31 +++
 stubs/cmos.c                                |   7 +
 stubs/Makefile.objs                         |   1 +
 11 files changed, 201 insertions(+), 235 deletions(-)
 create mode 100644 stubs/cmos.c

-- 
2.18.4

[PATCH v8 01/10] qtest: allow DSDT acpi table changes

[Gerd Hoffmann]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 tests/qtest/bios-tables-test-allowed-diff.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
index dfb8523c8bf4..6a052c50447a 100644
--- a/tests/qtest/bios-tables-test-allowed-diff.h
+++ b/tests/qtest/bios-tables-test-allowed-diff.h
@@ -1 +1,18 @@
 /* List of comma-separated changed AML files to ignore */
+"tests/data/acpi/pc/DSDT",
+"tests/data/acpi/pc/DSDT.acpihmat",
+"tests/data/acpi/pc/DSDT.bridge",
+"tests/data/acpi/pc/DSDT.cphp",
+"tests/data/acpi/pc/DSDT.dimmpxm",
+"tests/data/acpi/pc/DSDT.ipmikcs",
+"tests/data/acpi/pc/DSDT.memhp",
+"tests/data/acpi/pc/DSDT.numamem",
+"tests/data/acpi/q35/DSDT",
+"tests/data/acpi/q35/DSDT.acpihmat",
+"tests/data/acpi/q35/DSDT.bridge",
+"tests/data/acpi/q35/DSDT.cphp",
+"tests/data/acpi/q35/DSDT.dimmpxm",
+"tests/data/acpi/q35/DSDT.ipmibt",
+"tests/data/acpi/q35/DSDT.memhp",
+"tests/data/acpi/q35/DSDT.mmio64",
+"tests/data/acpi/q35/DSDT.numamem",
-- 
2.18.4

[PATCH v8 02/10] acpi: move aml builder code for floppy device

[Gerd Hoffmann]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/block/fdc.c       | 83 ++++++++++++++++++++++++++++++++++++++++++++
 hw/i386/acpi-build.c | 83 --------------------------------------------
 stubs/cmos.c         |  7 ++++
 stubs/Makefile.objs  |  1 +
 4 files changed, 91 insertions(+), 83 deletions(-)
 create mode 100644 stubs/cmos.c

diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index c5fb9d6ece77..b4d2eaf66dcd 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -32,6 +32,8 @@
 #include "qapi/error.h"
 #include "qemu/error-report.h"
 #include "qemu/timer.h"
+#include "hw/i386/pc.h"
+#include "hw/acpi/aml-build.h"
 #include "hw/irq.h"
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
@@ -2765,6 +2767,85 @@ void isa_fdc_get_drive_max_chs(FloppyDriveType type,
     (*maxc)--;
 }
 
+static Aml *build_fdinfo_aml(int idx, FloppyDriveType type)
+{
+    Aml *dev, *fdi;
+    uint8_t maxc, maxh, maxs;
+
+    isa_fdc_get_drive_max_chs(type, &maxc, &maxh, &maxs);
+
+    dev = aml_device("FLP%c", 'A' + idx);
+
+    aml_append(dev, aml_name_decl("_ADR", aml_int(idx)));
+
+    fdi = aml_package(16);
+    aml_append(fdi, aml_int(idx));  /* Drive Number */
+    aml_append(fdi,
+        aml_int(cmos_get_fd_drive_type(type)));  /* Device Type */
+    /*
+     * the values below are the limits of the drive, and are thus independent
+     * of the inserted media
+     */
+    aml_append(fdi, aml_int(maxc));  /* Maximum Cylinder Number */
+    aml_append(fdi, aml_int(maxs));  /* Maximum Sector Number */
+    aml_append(fdi, aml_int(maxh));  /* Maximum Head Number */
+    /*
+     * SeaBIOS returns the below values for int 0x13 func 0x08 regardless of
+     * the drive type, so shall we
+     */
+    aml_append(fdi, aml_int(0xAF));  /* disk_specify_1 */
+    aml_append(fdi, aml_int(0x02));  /* disk_specify_2 */
+    aml_append(fdi, aml_int(0x25));  /* disk_motor_wait */
+    aml_append(fdi, aml_int(0x02));  /* disk_sector_siz */
+    aml_append(fdi, aml_int(0x12));  /* disk_eot */
+    aml_append(fdi, aml_int(0x1B));  /* disk_rw_gap */
+    aml_append(fdi, aml_int(0xFF));  /* disk_dtl */
+    aml_append(fdi, aml_int(0x6C));  /* disk_formt_gap */
+    aml_append(fdi, aml_int(0xF6));  /* disk_fill */
+    aml_append(fdi, aml_int(0x0F));  /* disk_head_sttl */
+    aml_append(fdi, aml_int(0x08));  /* disk_motor_strt */
+
+    aml_append(dev, aml_name_decl("_FDI", fdi));
+    return dev;
+}
+
+static void fdc_isa_build_aml(ISADevice *isadev, Aml *scope)
+{
+    Aml *dev;
+    Aml *crs;
+    int i;
+
+#define ACPI_FDE_MAX_FD 4
+    uint32_t fde_buf[5] = {
+        0, 0, 0, 0,     /* presence of floppy drives #0 - #3 */
+        cpu_to_le32(2)  /* tape presence (2 == never present) */
+    };
+
+    crs = aml_resource_template();
+    aml_append(crs, aml_io(AML_DECODE16, 0x03F2, 0x03F2, 0x00, 0x04));
+    aml_append(crs, aml_io(AML_DECODE16, 0x03F7, 0x03F7, 0x00, 0x01));
+    aml_append(crs, aml_irq_no_flags(6));
+    aml_append(crs,
+        aml_dma(AML_COMPATIBILITY, AML_NOTBUSMASTER, AML_TRANSFER8, 2));
+
+    dev = aml_device("FDC0");
+    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0700")));
+    aml_append(dev, aml_name_decl("_CRS", crs));
+
+    for (i = 0; i < MIN(MAX_FD, ACPI_FDE_MAX_FD); i++) {
+        FloppyDriveType type = isa_fdc_get_drive_type(isadev, i);
+
+        if (type < FLOPPY_DRIVE_TYPE_NONE) {
+            fde_buf[i] = cpu_to_le32(1);  /* drive present */
+            aml_append(dev, build_fdinfo_aml(i, type));
+        }
+    }
+    aml_append(dev, aml_name_decl("_FDE",
+               aml_buffer(sizeof(fde_buf), (uint8_t *)fde_buf)));
+
+    aml_append(scope, dev);
+}
+
 static const VMStateDescription vmstate_isa_fdc ={
     .name = "fdc",
     .version_id = 2,
@@ -2798,11 +2879,13 @@ static Property isa_fdc_properties[] = {
 static void isabus_fdc_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
+    ISADeviceClass *isa = ISA_DEVICE_CLASS(klass);
 
     dc->realize = isabus_fdc_realize;
     dc->fw_name = "fdc";
     dc->reset = fdctrl_external_reset_isa;
     dc->vmsd = &vmstate_isa_fdc;
+    isa->build_aml = fdc_isa_build_aml;
     device_class_set_props(dc, isa_fdc_properties);
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 }
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 473cbdfffd05..7726d5c0f7cb 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -937,85 +937,6 @@ static void build_hpet_aml(Aml *table)
     aml_append(table, scope);
 }
 
-static Aml *build_fdinfo_aml(int idx, FloppyDriveType type)
-{
-    Aml *dev, *fdi;
-    uint8_t maxc, maxh, maxs;
-
-    isa_fdc_get_drive_max_chs(type, &maxc, &maxh, &maxs);
-
-    dev = aml_device("FLP%c", 'A' + idx);
-
-    aml_append(dev, aml_name_decl("_ADR", aml_int(idx)));
-
-    fdi = aml_package(16);
-    aml_append(fdi, aml_int(idx));  /* Drive Number */
-    aml_append(fdi,
-        aml_int(cmos_get_fd_drive_type(type)));  /* Device Type */
-    /*
-     * the values below are the limits of the drive, and are thus independent
-     * of the inserted media
-     */
-    aml_append(fdi, aml_int(maxc));  /* Maximum Cylinder Number */
-    aml_append(fdi, aml_int(maxs));  /* Maximum Sector Number */
-    aml_append(fdi, aml_int(maxh));  /* Maximum Head Number */
-    /*
-     * SeaBIOS returns the below values for int 0x13 func 0x08 regardless of
-     * the drive type, so shall we
-     */
-    aml_append(fdi, aml_int(0xAF));  /* disk_specify_1 */
-    aml_append(fdi, aml_int(0x02));  /* disk_specify_2 */
-    aml_append(fdi, aml_int(0x25));  /* disk_motor_wait */
-    aml_append(fdi, aml_int(0x02));  /* disk_sector_siz */
-    aml_append(fdi, aml_int(0x12));  /* disk_eot */
-    aml_append(fdi, aml_int(0x1B));  /* disk_rw_gap */
-    aml_append(fdi, aml_int(0xFF));  /* disk_dtl */
-    aml_append(fdi, aml_int(0x6C));  /* disk_formt_gap */
-    aml_append(fdi, aml_int(0xF6));  /* disk_fill */
-    aml_append(fdi, aml_int(0x0F));  /* disk_head_sttl */
-    aml_append(fdi, aml_int(0x08));  /* disk_motor_strt */
-
-    aml_append(dev, aml_name_decl("_FDI", fdi));
-    return dev;
-}
-
-static Aml *build_fdc_device_aml(ISADevice *fdc)
-{
-    int i;
-    Aml *dev;
-    Aml *crs;
-
-#define ACPI_FDE_MAX_FD 4
-    uint32_t fde_buf[5] = {
-        0, 0, 0, 0,     /* presence of floppy drives #0 - #3 */
-        cpu_to_le32(2)  /* tape presence (2 == never present) */
-    };
-
-    dev = aml_device("FDC0");
-    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0700")));
-
-    crs = aml_resource_template();
-    aml_append(crs, aml_io(AML_DECODE16, 0x03F2, 0x03F2, 0x00, 0x04));
-    aml_append(crs, aml_io(AML_DECODE16, 0x03F7, 0x03F7, 0x00, 0x01));
-    aml_append(crs, aml_irq_no_flags(6));
-    aml_append(crs,
-        aml_dma(AML_COMPATIBILITY, AML_NOTBUSMASTER, AML_TRANSFER8, 2));
-    aml_append(dev, aml_name_decl("_CRS", crs));
-
-    for (i = 0; i < MIN(MAX_FD, ACPI_FDE_MAX_FD); i++) {
-        FloppyDriveType type = isa_fdc_get_drive_type(fdc, i);
-
-        if (type < FLOPPY_DRIVE_TYPE_NONE) {
-            fde_buf[i] = cpu_to_le32(1);  /* drive present */
-            aml_append(dev, build_fdinfo_aml(i, type));
-        }
-    }
-    aml_append(dev, aml_name_decl("_FDE",
-               aml_buffer(sizeof(fde_buf), (uint8_t *)fde_buf)));
-
-    return dev;
-}
-
 static Aml *build_kbd_device_aml(void)
 {
     Aml *dev;
@@ -1054,7 +975,6 @@ static Aml *build_mouse_device_aml(void)
 
 static void build_isa_devices_aml(Aml *table)
 {
-    ISADevice *fdc = pc_find_fdc0();
     bool ambiguous;
 
     Aml *scope = aml_scope("_SB.PCI0.ISA");
@@ -1062,9 +982,6 @@ static void build_isa_devices_aml(Aml *table)
 
     aml_append(scope, build_kbd_device_aml());
     aml_append(scope, build_mouse_device_aml());
-    if (fdc) {
-        aml_append(scope, build_fdc_device_aml(fdc));
-    }
 
     if (ambiguous) {
         error_report("Multiple ISA busses, unable to define IPMI ACPI data");
diff --git a/stubs/cmos.c b/stubs/cmos.c
new file mode 100644
index 000000000000..416cbe4055ff
--- /dev/null
+++ b/stubs/cmos.c
@@ -0,0 +1,7 @@
+#include "qemu/osdep.h"
+#include "hw/i386/pc.h"
+
+int cmos_get_fd_drive_type(FloppyDriveType fd0)
+{
+    return 0;
+}
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index c1e43ac68f87..df2cbfe68ca0 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -1,4 +1,5 @@
 stub-obj-y += blk-commit-all.o
+stub-obj-y += cmos.o
 stub-obj-y += cpu-get-clock.o
 stub-obj-y += cpu-get-icount.o
 stub-obj-y += dump.o
-- 
2.18.4

[PATCH v8 03/10] floppy: make isa_fdc_get_drive_max_chs static

[Gerd Hoffmann]

acpi aml generator needs this, but it is in floppy code now
so we can make the function static.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
---
 include/hw/block/fdc.h | 2 --
 hw/block/fdc.c         | 4 ++--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/hw/block/fdc.h b/include/hw/block/fdc.h
index c15ff4c62315..5d71cf972268 100644
--- a/include/hw/block/fdc.h
+++ b/include/hw/block/fdc.h
@@ -16,7 +16,5 @@ void sun4m_fdctrl_init(qemu_irq irq, hwaddr io_base,
                        DriveInfo **fds, qemu_irq *fdc_tc);
 
 FloppyDriveType isa_fdc_get_drive_type(ISADevice *fdc, int i);
-void isa_fdc_get_drive_max_chs(FloppyDriveType type,
-                               uint8_t *maxc, uint8_t *maxh, uint8_t *maxs);
 
 #endif
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index b4d2eaf66dcd..8024c822cea3 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -2744,8 +2744,8 @@ FloppyDriveType isa_fdc_get_drive_type(ISADevice *fdc, int i)
     return isa->state.drives[i].drive;
 }
 
-void isa_fdc_get_drive_max_chs(FloppyDriveType type,
-                               uint8_t *maxc, uint8_t *maxh, uint8_t *maxs)
+static void isa_fdc_get_drive_max_chs(FloppyDriveType type, uint8_t *maxc,
+                                      uint8_t *maxh, uint8_t *maxs)
 {
     const FDFormat *fdf;
 
-- 
2.18.4

[PATCH v8 04/10] floppy: move cmos_get_fd_drive_type() from pc

[Gerd Hoffmann]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
---
 include/hw/block/fdc.h |  1 +
 include/hw/i386/pc.h   |  1 -
 hw/block/fdc.c         | 26 +++++++++++++++++++++++++-
 hw/i386/pc.c           | 25 -------------------------
 4 files changed, 26 insertions(+), 27 deletions(-)

diff --git a/include/hw/block/fdc.h b/include/hw/block/fdc.h
index 5d71cf972268..479cebc0a330 100644
--- a/include/hw/block/fdc.h
+++ b/include/hw/block/fdc.h
@@ -16,5 +16,6 @@ void sun4m_fdctrl_init(qemu_irq irq, hwaddr io_base,
                        DriveInfo **fds, qemu_irq *fdc_tc);
 
 FloppyDriveType isa_fdc_get_drive_type(ISADevice *fdc, int i);
+int cmos_get_fd_drive_type(FloppyDriveType fd0);
 
 #endif
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 8d764f965cd3..5e3b19ab78fc 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -176,7 +176,6 @@ typedef void (*cpu_set_smm_t)(int smm, void *arg);
 void pc_i8259_create(ISABus *isa_bus, qemu_irq *i8259_irqs);
 
 ISADevice *pc_find_fdc0(void);
-int cmos_get_fd_drive_type(FloppyDriveType fd0);
 
 /* port92.c */
 #define PORT92_A20_LINE "a20"
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index 8024c822cea3..ea0fb8ee15b9 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -32,7 +32,6 @@
 #include "qapi/error.h"
 #include "qemu/error-report.h"
 #include "qemu/timer.h"
-#include "hw/i386/pc.h"
 #include "hw/acpi/aml-build.h"
 #include "hw/irq.h"
 #include "hw/isa/isa.h"
@@ -2809,6 +2808,31 @@ static Aml *build_fdinfo_aml(int idx, FloppyDriveType type)
     return dev;
 }
 
+int cmos_get_fd_drive_type(FloppyDriveType fd0)
+{
+    int val;
+
+    switch (fd0) {
+    case FLOPPY_DRIVE_TYPE_144:
+        /* 1.44 Mb 3"5 drive */
+        val = 4;
+        break;
+    case FLOPPY_DRIVE_TYPE_288:
+        /* 2.88 Mb 3"5 drive */
+        val = 5;
+        break;
+    case FLOPPY_DRIVE_TYPE_120:
+        /* 1.2 Mb 5"5 drive */
+        val = 2;
+        break;
+    case FLOPPY_DRIVE_TYPE_NONE:
+    default:
+        val = 0;
+        break;
+    }
+    return val;
+}
+
 static void fdc_isa_build_aml(ISADevice *isadev, Aml *scope)
 {
     Aml *dev;
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 2128f3d6fe8b..c5db7be6d8b1 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -385,31 +385,6 @@ static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
 
 #define REG_EQUIPMENT_BYTE          0x14
 
-int cmos_get_fd_drive_type(FloppyDriveType fd0)
-{
-    int val;
-
-    switch (fd0) {
-    case FLOPPY_DRIVE_TYPE_144:
-        /* 1.44 Mb 3"5 drive */
-        val = 4;
-        break;
-    case FLOPPY_DRIVE_TYPE_288:
-        /* 2.88 Mb 3"5 drive */
-        val = 5;
-        break;
-    case FLOPPY_DRIVE_TYPE_120:
-        /* 1.2 Mb 5"5 drive */
-        val = 2;
-        break;
-    case FLOPPY_DRIVE_TYPE_NONE:
-    default:
-        val = 0;
-        break;
-    }
-    return val;
-}
-
 static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
                          int16_t cylinders, int8_t heads, int8_t sectors)
 {
-- 
2.18.4

[PATCH v8 05/10] acpi: move aml builder code for i8042 (kbd+mouse) device

[Gerd Hoffmann]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 39 ---------------------------------------
 hw/input/pckbd.c     | 31 +++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 39 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 7726d5c0f7cb..9fed13a27333 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -937,42 +937,6 @@ static void build_hpet_aml(Aml *table)
     aml_append(table, scope);
 }
 
-static Aml *build_kbd_device_aml(void)
-{
-    Aml *dev;
-    Aml *crs;
-
-    dev = aml_device("KBD");
-    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0303")));
-
-    aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
-
-    crs = aml_resource_template();
-    aml_append(crs, aml_io(AML_DECODE16, 0x0060, 0x0060, 0x01, 0x01));
-    aml_append(crs, aml_io(AML_DECODE16, 0x0064, 0x0064, 0x01, 0x01));
-    aml_append(crs, aml_irq_no_flags(1));
-    aml_append(dev, aml_name_decl("_CRS", crs));
-
-    return dev;
-}
-
-static Aml *build_mouse_device_aml(void)
-{
-    Aml *dev;
-    Aml *crs;
-
-    dev = aml_device("MOU");
-    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0F13")));
-
-    aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
-
-    crs = aml_resource_template();
-    aml_append(crs, aml_irq_no_flags(12));
-    aml_append(dev, aml_name_decl("_CRS", crs));
-
-    return dev;
-}
-
 static void build_isa_devices_aml(Aml *table)
 {
     bool ambiguous;
@@ -980,9 +944,6 @@ static void build_isa_devices_aml(Aml *table)
     Aml *scope = aml_scope("_SB.PCI0.ISA");
     Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous);
 
-    aml_append(scope, build_kbd_device_aml());
-    aml_append(scope, build_mouse_device_aml());
-
     if (ambiguous) {
         error_report("Multiple ISA busses, unable to define IPMI ACPI data");
     } else if (!obj) {
diff --git a/hw/input/pckbd.c b/hw/input/pckbd.c
index 60a41303203a..29d633ca9478 100644
--- a/hw/input/pckbd.c
+++ b/hw/input/pckbd.c
@@ -26,6 +26,7 @@
 #include "qemu/log.h"
 #include "hw/isa/isa.h"
 #include "migration/vmstate.h"
+#include "hw/acpi/aml-build.h"
 #include "hw/input/ps2.h"
 #include "hw/irq.h"
 #include "hw/input/i8042.h"
@@ -561,12 +562,42 @@ static void i8042_realizefn(DeviceState *dev, Error **errp)
     qemu_register_reset(kbd_reset, s);
 }
 
+static void i8042_build_aml(ISADevice *isadev, Aml *scope)
+{
+    Aml *kbd;
+    Aml *mou;
+    Aml *crs;
+
+    crs = aml_resource_template();
+    aml_append(crs, aml_io(AML_DECODE16, 0x0060, 0x0060, 0x01, 0x01));
+    aml_append(crs, aml_io(AML_DECODE16, 0x0064, 0x0064, 0x01, 0x01));
+    aml_append(crs, aml_irq_no_flags(1));
+
+    kbd = aml_device("KBD");
+    aml_append(kbd, aml_name_decl("_HID", aml_eisaid("PNP0303")));
+    aml_append(kbd, aml_name_decl("_STA", aml_int(0xf)));
+    aml_append(kbd, aml_name_decl("_CRS", crs));
+
+    crs = aml_resource_template();
+    aml_append(crs, aml_irq_no_flags(12));
+
+    mou = aml_device("MOU");
+    aml_append(mou, aml_name_decl("_HID", aml_eisaid("PNP0F13")));
+    aml_append(mou, aml_name_decl("_STA", aml_int(0xf)));
+    aml_append(mou, aml_name_decl("_CRS", crs));
+
+    aml_append(scope, kbd);
+    aml_append(scope, mou);
+}
+
 static void i8042_class_initfn(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
+    ISADeviceClass *isa = ISA_DEVICE_CLASS(klass);
 
     dc->realize = i8042_realizefn;
     dc->vmsd = &vmstate_kbd_isa;
+    isa->build_aml = i8042_build_aml;
     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
 }
 
-- 
2.18.4

[PATCH v8 06/10] acpi: factor out fw_cfg_add_acpi_dsdt()

[Gerd Hoffmann]

Add helper function to add fw_cfg device,
also move code to hw/i386/fw_cfg.c.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/fw_cfg.h     |  1 +
 hw/i386/acpi-build.c | 24 +-----------------------
 hw/i386/fw_cfg.c     | 28 ++++++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 23 deletions(-)

diff --git a/hw/i386/fw_cfg.h b/hw/i386/fw_cfg.h
index 9e742787792b..275f15c1c5e8 100644
--- a/hw/i386/fw_cfg.h
+++ b/hw/i386/fw_cfg.h
@@ -25,5 +25,6 @@ FWCfgState *fw_cfg_arch_create(MachineState *ms,
                                uint16_t apic_id_limit);
 void fw_cfg_build_smbios(MachineState *ms, FWCfgState *fw_cfg);
 void fw_cfg_build_feature_control(MachineState *ms, FWCfgState *fw_cfg);
+void fw_cfg_add_acpi_dsdt(Aml *scope, FWCfgState *fw_cfg);
 
 #endif
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 9fed13a27333..86be45eea17c 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1759,30 +1759,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
 
     /* create fw_cfg node, unconditionally */
     {
-        /* when using port i/o, the 8-bit data register *always* overlaps
-         * with half of the 16-bit control register. Hence, the total size
-         * of the i/o region used is FW_CFG_CTL_SIZE; when using DMA, the
-         * DMA control register is located at FW_CFG_DMA_IO_BASE + 4 */
-        uint8_t io_size = object_property_get_bool(OBJECT(x86ms->fw_cfg),
-                                                   "dma_enabled", NULL) ?
-                          ROUND_UP(FW_CFG_CTL_SIZE, 4) + sizeof(dma_addr_t) :
-                          FW_CFG_CTL_SIZE;
-
         scope = aml_scope("\\_SB.PCI0");
-        dev = aml_device("FWCF");
-
-        aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002")));
-
-        /* device present, functioning, decoding, not shown in UI */
-        aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
-
-        crs = aml_resource_template();
-        aml_append(crs,
-            aml_io(AML_DECODE16, FW_CFG_IO_BASE, FW_CFG_IO_BASE, 0x01, io_size)
-        );
-        aml_append(dev, aml_name_decl("_CRS", crs));
-
-        aml_append(scope, dev);
+        fw_cfg_add_acpi_dsdt(scope, x86ms->fw_cfg);
         aml_append(dsdt, scope);
     }
 
diff --git a/hw/i386/fw_cfg.c b/hw/i386/fw_cfg.c
index da60ada59462..c55abfb01abb 100644
--- a/hw/i386/fw_cfg.c
+++ b/hw/i386/fw_cfg.c
@@ -15,6 +15,7 @@
 #include "qemu/osdep.h"
 #include "sysemu/numa.h"
 #include "hw/acpi/acpi.h"
+#include "hw/acpi/aml-build.h"
 #include "hw/firmware/smbios.h"
 #include "hw/i386/fw_cfg.h"
 #include "hw/timer/hpet.h"
@@ -179,3 +180,30 @@ void fw_cfg_build_feature_control(MachineState *ms, FWCfgState *fw_cfg)
     *val = cpu_to_le64(feature_control_bits | FEATURE_CONTROL_LOCKED);
     fw_cfg_add_file(fw_cfg, "etc/msr_feature_control", val, sizeof(*val));
 }
+
+void fw_cfg_add_acpi_dsdt(Aml *scope, FWCfgState *fw_cfg)
+{
+    /*
+     * when using port i/o, the 8-bit data register *always* overlaps
+     * with half of the 16-bit control register. Hence, the total size
+     * of the i/o region used is FW_CFG_CTL_SIZE; when using DMA, the
+     * DMA control register is located at FW_CFG_DMA_IO_BASE + 4
+     */
+    Object *obj = OBJECT(fw_cfg);
+    uint8_t io_size = object_property_get_bool(obj, "dma_enabled", NULL) ?
+        ROUND_UP(FW_CFG_CTL_SIZE, 4) + sizeof(dma_addr_t) :
+        FW_CFG_CTL_SIZE;
+    Aml *dev = aml_device("FWCF");
+    Aml *crs = aml_resource_template();
+
+    aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002")));
+
+    /* device present, functioning, decoding, not shown in UI */
+    aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
+
+    aml_append(crs,
+        aml_io(AML_DECODE16, FW_CFG_IO_BASE, FW_CFG_IO_BASE, 0x01, io_size));
+
+    aml_append(dev, aml_name_decl("_CRS", crs));
+    aml_append(scope, dev);
+}
-- 
2.18.4

[PATCH v8 07/10] acpi: simplify build_isa_devices_aml()

[Gerd Hoffmann]

x86 machines can have a single ISA bus only.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/i386/acpi-build.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 86be45eea17c..c8e47700fc53 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -940,19 +940,14 @@ static void build_hpet_aml(Aml *table)
 static void build_isa_devices_aml(Aml *table)
 {
     bool ambiguous;
-
-    Aml *scope = aml_scope("_SB.PCI0.ISA");
     Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous);
+    Aml *scope;
 
-    if (ambiguous) {
-        error_report("Multiple ISA busses, unable to define IPMI ACPI data");
-    } else if (!obj) {
-        error_report("No ISA bus, unable to define IPMI ACPI data");
-    } else {
-        build_acpi_ipmi_devices(scope, BUS(obj), "\\_SB.PCI0.ISA");
-        isa_build_aml(ISA_BUS(obj), scope);
-    }
+    assert(obj && !ambiguous);
 
+    scope = aml_scope("_SB.PCI0.ISA");
+    build_acpi_ipmi_devices(scope, BUS(obj), "\\_SB.PCI0.ISA");
+    isa_build_aml(ISA_BUS(obj), scope);
     aml_append(table, scope);
 }
 
-- 
2.18.4

[PATCH v8 08/10] acpi: drop serial/parallel enable bits from dsdt

[Gerd Hoffmann]

The _STA methods for COM+LPT used to reference them,
but that isn't the case any more.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 23 -----------------------
 1 file changed, 23 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index c8e47700fc53..750fcf9baa37 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1316,15 +1316,6 @@ static void build_q35_isa_bridge(Aml *table)
     aml_append(field, aml_named_field("LPTD", 2));
     aml_append(dev, field);
 
-    aml_append(dev, aml_operation_region("LPCE", AML_PCI_CONFIG,
-                                         aml_int(0x82), 0x02));
-    /* enable bits */
-    field = aml_field("LPCE", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
-    aml_append(field, aml_named_field("CAEN", 1));
-    aml_append(field, aml_named_field("CBEN", 1));
-    aml_append(field, aml_named_field("LPEN", 1));
-    aml_append(dev, field);
-
     aml_append(scope, dev);
     aml_append(table, scope);
 }
@@ -1348,7 +1339,6 @@ static void build_piix4_isa_bridge(Aml *table)
 {
     Aml *dev;
     Aml *scope;
-    Aml *field;
 
     scope =  aml_scope("_SB.PCI0");
     dev = aml_device("ISA");
@@ -1357,19 +1347,6 @@ static void build_piix4_isa_bridge(Aml *table)
     /* PIIX PCI to ISA irq remapping */
     aml_append(dev, aml_operation_region("P40C", AML_PCI_CONFIG,
                                          aml_int(0x60), 0x04));
-    /* enable bits */
-    field = aml_field("^PX13.P13C", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
-    /* Offset(0x5f),, 7, */
-    aml_append(field, aml_reserved_field(0x2f8));
-    aml_append(field, aml_reserved_field(7));
-    aml_append(field, aml_named_field("LPEN", 1));
-    /* Offset(0x67),, 3, */
-    aml_append(field, aml_reserved_field(0x38));
-    aml_append(field, aml_reserved_field(3));
-    aml_append(field, aml_named_field("CAEN", 1));
-    aml_append(field, aml_reserved_field(3));
-    aml_append(field, aml_named_field("CBEN", 1));
-    aml_append(dev, field);
 
     aml_append(scope, dev);
     aml_append(table, scope);
-- 
2.18.4

[PATCH v8 09/10] acpi: drop build_piix4_pm()

[Gerd Hoffmann]

The _SB.PCI0.PX13.P13C opregion (holds isa device enable bits)
is not used any more, remove it from DSDT.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedow <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 750fcf9baa37..02cf4199c2e9 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1320,21 +1320,6 @@ static void build_q35_isa_bridge(Aml *table)
     aml_append(table, scope);
 }
 
-static void build_piix4_pm(Aml *table)
-{
-    Aml *dev;
-    Aml *scope;
-
-    scope =  aml_scope("_SB.PCI0");
-    dev = aml_device("PX13");
-    aml_append(dev, aml_name_decl("_ADR", aml_int(0x00010003)));
-
-    aml_append(dev, aml_operation_region("P13C", AML_PCI_CONFIG,
-                                         aml_int(0x00), 0xff));
-    aml_append(scope, dev);
-    aml_append(table, scope);
-}
-
 static void build_piix4_isa_bridge(Aml *table)
 {
     Aml *dev;
@@ -1486,7 +1471,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
         aml_append(dsdt, sb_scope);
 
         build_hpet_aml(dsdt);
-        build_piix4_pm(dsdt);
         build_piix4_isa_bridge(dsdt);
         build_isa_devices_aml(dsdt);
         build_piix4_pci_hotplug(dsdt);
-- 
2.18.4

[PATCH v8 10/10] acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.

[Gerd Hoffmann]

Seems to be unused.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 02cf4199c2e9..d93ea40c58b9 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1296,7 +1296,6 @@ static void build_q35_isa_bridge(Aml *table)
 {
     Aml *dev;
     Aml *scope;
-    Aml *field;
 
     scope =  aml_scope("_SB.PCI0");
     dev = aml_device("ISA");
@@ -1306,16 +1305,6 @@ static void build_q35_isa_bridge(Aml *table)
     aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
                                          aml_int(0x60), 0x0C));
 
-    aml_append(dev, aml_operation_region("LPCD", AML_PCI_CONFIG,
-                                         aml_int(0x80), 0x02));
-    field = aml_field("LPCD", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
-    aml_append(field, aml_named_field("COMA", 3));
-    aml_append(field, aml_reserved_field(1));
-    aml_append(field, aml_named_field("COMB", 3));
-    aml_append(field, aml_reserved_field(1));
-    aml_append(field, aml_named_field("LPTD", 2));
-    aml_append(dev, field);
-
     aml_append(scope, dev);
     aml_append(table, scope);
 }
-- 
2.18.4

Re: [PATCH v8 02/10] acpi: move aml builder code for floppy device

[Philippe Mathieu-Daudé]

On 6/11/20 9:29 AM, Gerd Hoffmann wrote:
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> Reviewed-by: Igor Mammedov <imammedo@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  hw/block/fdc.c       | 83 ++++++++++++++++++++++++++++++++++++++++++++
>  hw/i386/acpi-build.c | 83 --------------------------------------------
>  stubs/cmos.c         |  7 ++++
>  stubs/Makefile.objs  |  1 +
>  4 files changed, 91 insertions(+), 83 deletions(-)
>  create mode 100644 stubs/cmos.c
> 
> diff --git a/hw/block/fdc.c b/hw/block/fdc.c
> index c5fb9d6ece77..b4d2eaf66dcd 100644
> --- a/hw/block/fdc.c
> +++ b/hw/block/fdc.c
> @@ -32,6 +32,8 @@
>  #include "qapi/error.h"
>  #include "qemu/error-report.h"
>  #include "qemu/timer.h"
> +#include "hw/i386/pc.h"
> +#include "hw/acpi/aml-build.h"
>  #include "hw/irq.h"
>  #include "hw/isa/isa.h"
>  #include "hw/qdev-properties.h"
> @@ -2765,6 +2767,85 @@ void isa_fdc_get_drive_max_chs(FloppyDriveType type,
>      (*maxc)--;
>  }
>  
> +static Aml *build_fdinfo_aml(int idx, FloppyDriveType type)
> +{
> +    Aml *dev, *fdi;
> +    uint8_t maxc, maxh, maxs;
> +
> +    isa_fdc_get_drive_max_chs(type, &maxc, &maxh, &maxs);
> +
> +    dev = aml_device("FLP%c", 'A' + idx);
> +
> +    aml_append(dev, aml_name_decl("_ADR", aml_int(idx)));
> +
> +    fdi = aml_package(16);
> +    aml_append(fdi, aml_int(idx));  /* Drive Number */
> +    aml_append(fdi,
> +        aml_int(cmos_get_fd_drive_type(type)));  /* Device Type */
> +    /*
> +     * the values below are the limits of the drive, and are thus independent
> +     * of the inserted media
> +     */
> +    aml_append(fdi, aml_int(maxc));  /* Maximum Cylinder Number */
> +    aml_append(fdi, aml_int(maxs));  /* Maximum Sector Number */
> +    aml_append(fdi, aml_int(maxh));  /* Maximum Head Number */
> +    /*
> +     * SeaBIOS returns the below values for int 0x13 func 0x08 regardless of
> +     * the drive type, so shall we
> +     */
> +    aml_append(fdi, aml_int(0xAF));  /* disk_specify_1 */
> +    aml_append(fdi, aml_int(0x02));  /* disk_specify_2 */
> +    aml_append(fdi, aml_int(0x25));  /* disk_motor_wait */
> +    aml_append(fdi, aml_int(0x02));  /* disk_sector_siz */
> +    aml_append(fdi, aml_int(0x12));  /* disk_eot */
> +    aml_append(fdi, aml_int(0x1B));  /* disk_rw_gap */
> +    aml_append(fdi, aml_int(0xFF));  /* disk_dtl */
> +    aml_append(fdi, aml_int(0x6C));  /* disk_formt_gap */
> +    aml_append(fdi, aml_int(0xF6));  /* disk_fill */
> +    aml_append(fdi, aml_int(0x0F));  /* disk_head_sttl */
> +    aml_append(fdi, aml_int(0x08));  /* disk_motor_strt */
> +
> +    aml_append(dev, aml_name_decl("_FDI", fdi));
> +    return dev;
> +}
> +
> +static void fdc_isa_build_aml(ISADevice *isadev, Aml *scope)
> +{
> +    Aml *dev;
> +    Aml *crs;
> +    int i;
> +
> +#define ACPI_FDE_MAX_FD 4
> +    uint32_t fde_buf[5] = {
> +        0, 0, 0, 0,     /* presence of floppy drives #0 - #3 */
> +        cpu_to_le32(2)  /* tape presence (2 == never present) */
> +    };
> +
> +    crs = aml_resource_template();
> +    aml_append(crs, aml_io(AML_DECODE16, 0x03F2, 0x03F2, 0x00, 0x04));
> +    aml_append(crs, aml_io(AML_DECODE16, 0x03F7, 0x03F7, 0x00, 0x01));
> +    aml_append(crs, aml_irq_no_flags(6));
> +    aml_append(crs,
> +        aml_dma(AML_COMPATIBILITY, AML_NOTBUSMASTER, AML_TRANSFER8, 2));
> +
> +    dev = aml_device("FDC0");
> +    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0700")));
> +    aml_append(dev, aml_name_decl("_CRS", crs));
> +
> +    for (i = 0; i < MIN(MAX_FD, ACPI_FDE_MAX_FD); i++) {
> +        FloppyDriveType type = isa_fdc_get_drive_type(isadev, i);
> +
> +        if (type < FLOPPY_DRIVE_TYPE_NONE) {
> +            fde_buf[i] = cpu_to_le32(1);  /* drive present */
> +            aml_append(dev, build_fdinfo_aml(i, type));
> +        }
> +    }
> +    aml_append(dev, aml_name_decl("_FDE",
> +               aml_buffer(sizeof(fde_buf), (uint8_t *)fde_buf)));
> +
> +    aml_append(scope, dev);
> +}
> +
>  static const VMStateDescription vmstate_isa_fdc ={
>      .name = "fdc",
>      .version_id = 2,
> @@ -2798,11 +2879,13 @@ static Property isa_fdc_properties[] = {
>  static void isabus_fdc_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> +    ISADeviceClass *isa = ISA_DEVICE_CLASS(klass);
>  
>      dc->realize = isabus_fdc_realize;
>      dc->fw_name = "fdc";
>      dc->reset = fdctrl_external_reset_isa;
>      dc->vmsd = &vmstate_isa_fdc;
> +    isa->build_aml = fdc_isa_build_aml;
>      device_class_set_props(dc, isa_fdc_properties);
>      set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
>  }
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 473cbdfffd05..7726d5c0f7cb 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -937,85 +937,6 @@ static void build_hpet_aml(Aml *table)
>      aml_append(table, scope);
>  }
>  
> -static Aml *build_fdinfo_aml(int idx, FloppyDriveType type)
> -{
> -    Aml *dev, *fdi;
> -    uint8_t maxc, maxh, maxs;
> -
> -    isa_fdc_get_drive_max_chs(type, &maxc, &maxh, &maxs);
> -
> -    dev = aml_device("FLP%c", 'A' + idx);
> -
> -    aml_append(dev, aml_name_decl("_ADR", aml_int(idx)));
> -
> -    fdi = aml_package(16);
> -    aml_append(fdi, aml_int(idx));  /* Drive Number */
> -    aml_append(fdi,
> -        aml_int(cmos_get_fd_drive_type(type)));  /* Device Type */
> -    /*
> -     * the values below are the limits of the drive, and are thus independent
> -     * of the inserted media
> -     */
> -    aml_append(fdi, aml_int(maxc));  /* Maximum Cylinder Number */
> -    aml_append(fdi, aml_int(maxs));  /* Maximum Sector Number */
> -    aml_append(fdi, aml_int(maxh));  /* Maximum Head Number */
> -    /*
> -     * SeaBIOS returns the below values for int 0x13 func 0x08 regardless of
> -     * the drive type, so shall we
> -     */
> -    aml_append(fdi, aml_int(0xAF));  /* disk_specify_1 */
> -    aml_append(fdi, aml_int(0x02));  /* disk_specify_2 */
> -    aml_append(fdi, aml_int(0x25));  /* disk_motor_wait */
> -    aml_append(fdi, aml_int(0x02));  /* disk_sector_siz */
> -    aml_append(fdi, aml_int(0x12));  /* disk_eot */
> -    aml_append(fdi, aml_int(0x1B));  /* disk_rw_gap */
> -    aml_append(fdi, aml_int(0xFF));  /* disk_dtl */
> -    aml_append(fdi, aml_int(0x6C));  /* disk_formt_gap */
> -    aml_append(fdi, aml_int(0xF6));  /* disk_fill */
> -    aml_append(fdi, aml_int(0x0F));  /* disk_head_sttl */
> -    aml_append(fdi, aml_int(0x08));  /* disk_motor_strt */
> -
> -    aml_append(dev, aml_name_decl("_FDI", fdi));
> -    return dev;
> -}
> -
> -static Aml *build_fdc_device_aml(ISADevice *fdc)
> -{
> -    int i;
> -    Aml *dev;
> -    Aml *crs;
> -
> -#define ACPI_FDE_MAX_FD 4
> -    uint32_t fde_buf[5] = {
> -        0, 0, 0, 0,     /* presence of floppy drives #0 - #3 */
> -        cpu_to_le32(2)  /* tape presence (2 == never present) */
> -    };
> -
> -    dev = aml_device("FDC0");
> -    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0700")));
> -
> -    crs = aml_resource_template();
> -    aml_append(crs, aml_io(AML_DECODE16, 0x03F2, 0x03F2, 0x00, 0x04));
> -    aml_append(crs, aml_io(AML_DECODE16, 0x03F7, 0x03F7, 0x00, 0x01));
> -    aml_append(crs, aml_irq_no_flags(6));
> -    aml_append(crs,
> -        aml_dma(AML_COMPATIBILITY, AML_NOTBUSMASTER, AML_TRANSFER8, 2));
> -    aml_append(dev, aml_name_decl("_CRS", crs));
> -
> -    for (i = 0; i < MIN(MAX_FD, ACPI_FDE_MAX_FD); i++) {
> -        FloppyDriveType type = isa_fdc_get_drive_type(fdc, i);
> -
> -        if (type < FLOPPY_DRIVE_TYPE_NONE) {
> -            fde_buf[i] = cpu_to_le32(1);  /* drive present */
> -            aml_append(dev, build_fdinfo_aml(i, type));
> -        }
> -    }
> -    aml_append(dev, aml_name_decl("_FDE",
> -               aml_buffer(sizeof(fde_buf), (uint8_t *)fde_buf)));
> -
> -    return dev;
> -}
> -
>  static Aml *build_kbd_device_aml(void)
>  {
>      Aml *dev;
> @@ -1054,7 +975,6 @@ static Aml *build_mouse_device_aml(void)
>  
>  static void build_isa_devices_aml(Aml *table)
>  {
> -    ISADevice *fdc = pc_find_fdc0();
>      bool ambiguous;
>  
>      Aml *scope = aml_scope("_SB.PCI0.ISA");
> @@ -1062,9 +982,6 @@ static void build_isa_devices_aml(Aml *table)
>  
>      aml_append(scope, build_kbd_device_aml());
>      aml_append(scope, build_mouse_device_aml());
> -    if (fdc) {
> -        aml_append(scope, build_fdc_device_aml(fdc));
> -    }
>  
>      if (ambiguous) {
>          error_report("Multiple ISA busses, unable to define IPMI ACPI data");
> diff --git a/stubs/cmos.c b/stubs/cmos.c
> new file mode 100644
> index 000000000000..416cbe4055ff
> --- /dev/null
> +++ b/stubs/cmos.c
> @@ -0,0 +1,7 @@
> +#include "qemu/osdep.h"
> +#include "hw/i386/pc.h"
> +
> +int cmos_get_fd_drive_type(FloppyDriveType fd0)
> +{
> +    return 0;
> +}
> diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
> index c1e43ac68f87..df2cbfe68ca0 100644
> --- a/stubs/Makefile.objs
> +++ b/stubs/Makefile.objs
> @@ -1,4 +1,5 @@
>  stub-obj-y += blk-commit-all.o
> +stub-obj-y += cmos.o
>  stub-obj-y += cpu-get-clock.o
>  stub-obj-y += cpu-get-icount.o
>  stub-obj-y += dump.o
> 

Re: [PATCH v8 10/10] acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.

[Philippe Mathieu-Daudé]

Hi Gerd,

On 6/11/20 9:29 AM, Gerd Hoffmann wrote:
> Seems to be unused.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
> ---
>  hw/i386/acpi-build.c | 11 -----------
>  1 file changed, 11 deletions(-)
> 
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 02cf4199c2e9..d93ea40c58b9 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1296,7 +1296,6 @@ static void build_q35_isa_bridge(Aml *table)
>  {
>      Aml *dev;
>      Aml *scope;
> -    Aml *field;
>  
>      scope =  aml_scope("_SB.PCI0");
>      dev = aml_device("ISA");
> @@ -1306,16 +1305,6 @@ static void build_q35_isa_bridge(Aml *table)
>      aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
>                                           aml_int(0x60), 0x0C));
>  
> -    aml_append(dev, aml_operation_region("LPCD", AML_PCI_CONFIG,
> -                                         aml_int(0x80), 0x02));
> -    field = aml_field("LPCD", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
> -    aml_append(field, aml_named_field("COMA", 3));
> -    aml_append(field, aml_reserved_field(1));
> -    aml_append(field, aml_named_field("COMB", 3));
> -    aml_append(field, aml_reserved_field(1));
> -    aml_append(field, aml_named_field("LPTD", 2));
> -    aml_append(dev, field);
> -
>      aml_append(scope, dev);
>      aml_append(table, scope);
>  }
> 

I'm a bit confused, isn't it use to describe these
devices?

(qemu) info qtree
bus: main-system-bus
  type System
  dev: q35-pcihost, id ""
    bus: pcie.0
      type PCIE
      dev: ICH9-LPC, id ""
        gpio-out "gsi" 24
        class ISA bridge, addr 00:1f.0, pci id 8086:2918 (sub 1af4:1100)
        bus: isa.0
          type ISA
          dev: port92, id ""
            gpio-out "a20" 1
          dev: vmmouse, id ""
          dev: vmport, id ""
          dev: isa-parallel, id ""
            index = 0 (0x0)
            iobase = 888 (0x378)
            irq = 7 (0x7)
            chardev = "parallel0"
            isa irq 7
          dev: isa-serial, id ""
            index = 1 (0x1)
            iobase = 760 (0x2f8)
            irq = 3 (0x3)
            chardev = "serial1"
            wakeup = 0 (0x0)
            isa irq 3
          dev: isa-serial, id ""
            index = 0 (0x0)
            iobase = 1016 (0x3f8)
            irq = 4 (0x4)
            chardev = "serial0"
            wakeup = 0 (0x0)
            isa irq 4

Re: [PATCH v8 10/10] acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.

[Philippe Mathieu-Daudé]

On 6/11/20 10:27 AM, Philippe Mathieu-Daudé wrote:
> Hi Gerd,
> 
> On 6/11/20 9:29 AM, Gerd Hoffmann wrote:
>> Seems to be unused.
>>
>> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
>> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
>> ---
>>  hw/i386/acpi-build.c | 11 -----------
>>  1 file changed, 11 deletions(-)
>>
>> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
>> index 02cf4199c2e9..d93ea40c58b9 100644
>> --- a/hw/i386/acpi-build.c
>> +++ b/hw/i386/acpi-build.c
>> @@ -1296,7 +1296,6 @@ static void build_q35_isa_bridge(Aml *table)
>>  {
>>      Aml *dev;
>>      Aml *scope;
>> -    Aml *field;
>>  
>>      scope =  aml_scope("_SB.PCI0");
>>      dev = aml_device("ISA");
>> @@ -1306,16 +1305,6 @@ static void build_q35_isa_bridge(Aml *table)
>>      aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
>>                                           aml_int(0x60), 0x0C));
>>  
>> -    aml_append(dev, aml_operation_region("LPCD", AML_PCI_CONFIG,
>> -                                         aml_int(0x80), 0x02));
>> -    field = aml_field("LPCD", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
>> -    aml_append(field, aml_named_field("COMA", 3));
>> -    aml_append(field, aml_reserved_field(1));
>> -    aml_append(field, aml_named_field("COMB", 3));
>> -    aml_append(field, aml_reserved_field(1));
>> -    aml_append(field, aml_named_field("LPTD", 2));
>> -    aml_append(dev, field);
>> -
>>      aml_append(scope, dev);
>>      aml_append(table, scope);
>>  }
>>
> 
> I'm a bit confused, isn't it use to describe these
> devices?
> 
> (qemu) info qtree
> bus: main-system-bus
>   type System
>   dev: q35-pcihost, id ""
>     bus: pcie.0
>       type PCIE
>       dev: ICH9-LPC, id ""
>         gpio-out "gsi" 24
>         class ISA bridge, addr 00:1f.0, pci id 8086:2918 (sub 1af4:1100)
>         bus: isa.0
>           type ISA
>           dev: port92, id ""
>             gpio-out "a20" 1
>           dev: vmmouse, id ""
>           dev: vmport, id ""
>           dev: isa-parallel, id ""
>             index = 0 (0x0)
>             iobase = 888 (0x378)
>             irq = 7 (0x7)
>             chardev = "parallel0"
>             isa irq 7
>           dev: isa-serial, id ""
>             index = 1 (0x1)
>             iobase = 760 (0x2f8)
>             irq = 3 (0x3)
>             chardev = "serial1"
>             wakeup = 0 (0x0)
>             isa irq 3
>           dev: isa-serial, id ""
>             index = 0 (0x0)
>             iobase = 1016 (0x3f8)
>             irq = 4 (0x4)
>             chardev = "serial0"
>             wakeup = 0 (0x0)
>             isa irq 4
> 

Ah, this patch complements the previous "acpi: drop serial/parallel
enable bits from dsdt", right? Maybe better to include this change
with the build_q35_isa_bridge() part. Like in a single patch:
"acpi: q35: drop lpc/serial/parallel enable bits from dsdt"

Then keep the PIIX part of the patches.

Re: [PATCH v8 10/10] acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.

[Michael S. Tsirkin]

On Thu, Jun 11, 2020 at 10:31:01AM +0200, Philippe Mathieu-Daudé wrote:
> On 6/11/20 10:27 AM, Philippe Mathieu-Daudé wrote:
> > Hi Gerd,
> > 
> > On 6/11/20 9:29 AM, Gerd Hoffmann wrote:
> >> Seems to be unused.
> >>
> >> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> >> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
> >> ---
> >>  hw/i386/acpi-build.c | 11 -----------
> >>  1 file changed, 11 deletions(-)
> >>
> >> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> >> index 02cf4199c2e9..d93ea40c58b9 100644
> >> --- a/hw/i386/acpi-build.c
> >> +++ b/hw/i386/acpi-build.c
> >> @@ -1296,7 +1296,6 @@ static void build_q35_isa_bridge(Aml *table)
> >>  {
> >>      Aml *dev;
> >>      Aml *scope;
> >> -    Aml *field;
> >>  
> >>      scope =  aml_scope("_SB.PCI0");
> >>      dev = aml_device("ISA");
> >> @@ -1306,16 +1305,6 @@ static void build_q35_isa_bridge(Aml *table)
> >>      aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
> >>                                           aml_int(0x60), 0x0C));
> >>  
> >> -    aml_append(dev, aml_operation_region("LPCD", AML_PCI_CONFIG,
> >> -                                         aml_int(0x80), 0x02));
> >> -    field = aml_field("LPCD", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
> >> -    aml_append(field, aml_named_field("COMA", 3));
> >> -    aml_append(field, aml_reserved_field(1));
> >> -    aml_append(field, aml_named_field("COMB", 3));
> >> -    aml_append(field, aml_reserved_field(1));
> >> -    aml_append(field, aml_named_field("LPTD", 2));
> >> -    aml_append(dev, field);
> >> -
> >>      aml_append(scope, dev);
> >>      aml_append(table, scope);
> >>  }
> >>
> > 
> > I'm a bit confused, isn't it use to describe these
> > devices?
> > 
> > (qemu) info qtree
> > bus: main-system-bus
> >   type System
> >   dev: q35-pcihost, id ""
> >     bus: pcie.0
> >       type PCIE
> >       dev: ICH9-LPC, id ""
> >         gpio-out "gsi" 24
> >         class ISA bridge, addr 00:1f.0, pci id 8086:2918 (sub 1af4:1100)
> >         bus: isa.0
> >           type ISA
> >           dev: port92, id ""
> >             gpio-out "a20" 1
> >           dev: vmmouse, id ""
> >           dev: vmport, id ""
> >           dev: isa-parallel, id ""
> >             index = 0 (0x0)
> >             iobase = 888 (0x378)
> >             irq = 7 (0x7)
> >             chardev = "parallel0"
> >             isa irq 7
> >           dev: isa-serial, id ""
> >             index = 1 (0x1)
> >             iobase = 760 (0x2f8)
> >             irq = 3 (0x3)
> >             chardev = "serial1"
> >             wakeup = 0 (0x0)
> >             isa irq 3
> >           dev: isa-serial, id ""
> >             index = 0 (0x0)
> >             iobase = 1016 (0x3f8)
> >             irq = 4 (0x4)
> >             chardev = "serial0"
> >             wakeup = 0 (0x0)
> >             isa irq 4
> > 
> 
> Ah, this patch complements the previous "acpi: drop serial/parallel
> enable bits from dsdt", right? Maybe better to include this change
> with the build_q35_isa_bridge() part. Like in a single patch:
> "acpi: q35: drop lpc/serial/parallel enable bits from dsdt"
> 
> Then keep the PIIX part of the patches.

Don't see why really.

-- 
MST

Re: [PATCH v8 01/10] qtest: allow DSDT acpi table changes

[Michael S. Tsirkin]

On Thu, Jun 11, 2020 at 09:29:10AM +0200, Gerd Hoffmann wrote:
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

OK, thanks! What is still missing is resulting ASL
differences in the expected files for reviewers.
See ./tests/qtest/bios-tables-test.c step 7.

I'm working on a tool that will show the changes
more easily so they can be included with each
change, but that will do for now.

Thanks and sorry about all the bureaucracy.

> ---
>  tests/qtest/bios-tables-test-allowed-diff.h | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
> index dfb8523c8bf4..6a052c50447a 100644
> --- a/tests/qtest/bios-tables-test-allowed-diff.h
> +++ b/tests/qtest/bios-tables-test-allowed-diff.h
> @@ -1 +1,18 @@
>  /* List of comma-separated changed AML files to ignore */
> +"tests/data/acpi/pc/DSDT",
> +"tests/data/acpi/pc/DSDT.acpihmat",
> +"tests/data/acpi/pc/DSDT.bridge",
> +"tests/data/acpi/pc/DSDT.cphp",
> +"tests/data/acpi/pc/DSDT.dimmpxm",
> +"tests/data/acpi/pc/DSDT.ipmikcs",
> +"tests/data/acpi/pc/DSDT.memhp",
> +"tests/data/acpi/pc/DSDT.numamem",
> +"tests/data/acpi/q35/DSDT",
> +"tests/data/acpi/q35/DSDT.acpihmat",
> +"tests/data/acpi/q35/DSDT.bridge",
> +"tests/data/acpi/q35/DSDT.cphp",
> +"tests/data/acpi/q35/DSDT.dimmpxm",
> +"tests/data/acpi/q35/DSDT.ipmibt",
> +"tests/data/acpi/q35/DSDT.memhp",
> +"tests/data/acpi/q35/DSDT.mmio64",
> +"tests/data/acpi/q35/DSDT.numamem",
> -- 
> 2.18.4

Re: [PATCH v8 10/10] acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.

[Philippe Mathieu-Daudé]

On 6/11/20 11:12 AM, Michael S. Tsirkin wrote:
> On Thu, Jun 11, 2020 at 10:31:01AM +0200, Philippe Mathieu-Daudé wrote:
>> On 6/11/20 10:27 AM, Philippe Mathieu-Daudé wrote:
>>> Hi Gerd,
>>>
>>> On 6/11/20 9:29 AM, Gerd Hoffmann wrote:
>>>> Seems to be unused.
>>>>
>>>> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
>>>> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
>>>> ---
>>>>  hw/i386/acpi-build.c | 11 -----------
>>>>  1 file changed, 11 deletions(-)
>>>>
>>>> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
>>>> index 02cf4199c2e9..d93ea40c58b9 100644
>>>> --- a/hw/i386/acpi-build.c
>>>> +++ b/hw/i386/acpi-build.c
>>>> @@ -1296,7 +1296,6 @@ static void build_q35_isa_bridge(Aml *table)
>>>>  {
>>>>      Aml *dev;
>>>>      Aml *scope;
>>>> -    Aml *field;
>>>>  
>>>>      scope =  aml_scope("_SB.PCI0");
>>>>      dev = aml_device("ISA");
>>>> @@ -1306,16 +1305,6 @@ static void build_q35_isa_bridge(Aml *table)
>>>>      aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
>>>>                                           aml_int(0x60), 0x0C));
>>>>  
>>>> -    aml_append(dev, aml_operation_region("LPCD", AML_PCI_CONFIG,
>>>> -                                         aml_int(0x80), 0x02));
>>>> -    field = aml_field("LPCD", AML_ANY_ACC, AML_NOLOCK, AML_PRESERVE);
>>>> -    aml_append(field, aml_named_field("COMA", 3));
>>>> -    aml_append(field, aml_reserved_field(1));
>>>> -    aml_append(field, aml_named_field("COMB", 3));
>>>> -    aml_append(field, aml_reserved_field(1));
>>>> -    aml_append(field, aml_named_field("LPTD", 2));
>>>> -    aml_append(dev, field);
>>>> -
>>>>      aml_append(scope, dev);
>>>>      aml_append(table, scope);
>>>>  }
>>>>
>>>
>>> I'm a bit confused, isn't it use to describe these
>>> devices?
>>>
>>> (qemu) info qtree
>>> bus: main-system-bus
>>>   type System
>>>   dev: q35-pcihost, id ""
>>>     bus: pcie.0
>>>       type PCIE
>>>       dev: ICH9-LPC, id ""
>>>         gpio-out "gsi" 24
>>>         class ISA bridge, addr 00:1f.0, pci id 8086:2918 (sub 1af4:1100)
>>>         bus: isa.0
>>>           type ISA
>>>           dev: port92, id ""
>>>             gpio-out "a20" 1
>>>           dev: vmmouse, id ""
>>>           dev: vmport, id ""
>>>           dev: isa-parallel, id ""
>>>             index = 0 (0x0)
>>>             iobase = 888 (0x378)
>>>             irq = 7 (0x7)
>>>             chardev = "parallel0"
>>>             isa irq 7
>>>           dev: isa-serial, id ""
>>>             index = 1 (0x1)
>>>             iobase = 760 (0x2f8)
>>>             irq = 3 (0x3)
>>>             chardev = "serial1"
>>>             wakeup = 0 (0x0)
>>>             isa irq 3
>>>           dev: isa-serial, id ""
>>>             index = 0 (0x0)
>>>             iobase = 1016 (0x3f8)
>>>             irq = 4 (0x4)
>>>             chardev = "serial0"
>>>             wakeup = 0 (0x0)
>>>             isa irq 4
>>>
>>
>> Ah, this patch complements the previous "acpi: drop serial/parallel
>> enable bits from dsdt", right? Maybe better to include this change
>> with the build_q35_isa_bridge() part. Like in a single patch:
>> "acpi: q35: drop lpc/serial/parallel enable bits from dsdt"
>>
>> Then keep the PIIX part of the patches.
> 
> Don't see why really.

OK, no problem on my side. Series fully reviewed!

Re: [PATCH v8 09/10] acpi: drop build_piix4_pm()

[Philippe Mathieu-Daudé]

On 6/11/20 9:29 AM, Gerd Hoffmann wrote:
> The _SB.PCI0.PX13.P13C opregion (holds isa device enable bits)
> is not used any more, remove it from DSDT.

Maybe:

"is not used any more (see previous commit), remove it from DSDT."

(if Michael can do the change when applying if you agree).

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> Reviewed-by: Igor Mammedow <imammedo@redhat.com>
> ---
>  hw/i386/acpi-build.c | 16 ----------------
>  1 file changed, 16 deletions(-)
> 
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 750fcf9baa37..02cf4199c2e9 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1320,21 +1320,6 @@ static void build_q35_isa_bridge(Aml *table)
>      aml_append(table, scope);
>  }
>  
> -static void build_piix4_pm(Aml *table)
> -{
> -    Aml *dev;
> -    Aml *scope;
> -
> -    scope =  aml_scope("_SB.PCI0");
> -    dev = aml_device("PX13");
> -    aml_append(dev, aml_name_decl("_ADR", aml_int(0x00010003)));
> -
> -    aml_append(dev, aml_operation_region("P13C", AML_PCI_CONFIG,
> -                                         aml_int(0x00), 0xff));
> -    aml_append(scope, dev);
> -    aml_append(table, scope);
> -}
> -
>  static void build_piix4_isa_bridge(Aml *table)
>  {
>      Aml *dev;
> @@ -1486,7 +1471,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>          aml_append(dsdt, sb_scope);
>  
>          build_hpet_aml(dsdt);
> -        build_piix4_pm(dsdt);
>          build_piix4_isa_bridge(dsdt);
>          build_isa_devices_aml(dsdt);
>          build_piix4_pci_hotplug(dsdt);
>