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add ACPI compat patch for 5.1 and older machine types

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Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
This commit is contained in:
Stefan Reiter 2021-03-04 13:52:04 +01:00 committed by Thomas Lamprecht
parent a6ede89808
commit 40e6b6e5a5
2 changed files with 109 additions and 0 deletions
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108
debian/patches/extra/0009-i386-acpi-restore-device-paths-for-pre-5.1-vms.patch vendored Normal file
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@ -0,0 +1,108 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vitaly Cheptsov <cheptsov@ispras.ru>
Date: Tue, 2 Mar 2021 09:21:10 -0500
Subject: [PATCH] i386/acpi: restore device paths for pre-5.1 vms
After fixing the _UID value for the primary PCI root bridge in
af1b80ae it was discovered that this change updates Windows
configuration in an incompatible way causing network configuration
failure unless DHCP is used. More details provided on the list:
https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg08484.html
This change reverts the _UID update from 1 to 0 for q35 and i440fx
VMs before version 5.2 to maintain the original behaviour when
upgrading.
Cc: qemu-stable@nongnu.org
Cc: qemu-devel@nongnu.org
Reported-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Vitaly Cheptsov <cheptsov@ispras.ru>
Message-Id: <20210301195919.9333-1-cheptsov@ispras.ru>
Tested-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: af1b80ae56c9 ("i386/acpi: fix inconsistent QEMU/OVMF device paths")
---
hw/i386/acpi-build.c | 4 ++--
hw/i386/pc_piix.c | 2 ++
hw/i386/pc_q35.c | 2 ++
include/hw/i386/pc.h | 1 +
4 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 1f5c211245..b5616582a5 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1513,7 +1513,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
dev = aml_device("PCI0");
aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
- aml_append(dev, aml_name_decl("_UID", aml_int(0)));
+ aml_append(dev, aml_name_decl("_UID", aml_int(pcmc->pci_root_uid)));
aml_append(sb_scope, dev);
aml_append(dsdt, sb_scope);
@@ -1530,7 +1530,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
- aml_append(dev, aml_name_decl("_UID", aml_int(0)));
+ aml_append(dev, aml_name_decl("_UID", aml_int(pcmc->pci_root_uid)));
aml_append(dev, build_q35_osc_method());
aml_append(sb_scope, dev);
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 13d1628f13..2524c96216 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -417,6 +417,7 @@ static void pc_i440fx_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pcmc->default_nic_model = "e1000";
+ pcmc->pci_root_uid = 0;
m->family = "pc_piix";
m->desc = "Standard PC (i440FX + PIIX, 1996)";
@@ -448,6 +449,7 @@ static void pc_i440fx_5_1_machine_options(MachineClass *m)
compat_props_add(m->compat_props, hw_compat_5_1, hw_compat_5_1_len);
compat_props_add(m->compat_props, pc_compat_5_1, pc_compat_5_1_len);
pcmc->kvmclock_create_always = false;
+ pcmc->pci_root_uid = 1;
}
DEFINE_I440FX_MACHINE(v5_1, "pc-i440fx-5.1", NULL,
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index a3f4959c43..c58dad5ae3 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -329,6 +329,7 @@ static void pc_q35_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pcmc->default_nic_model = "e1000e";
+ pcmc->pci_root_uid = 0;
m->family = "pc_q35";
m->desc = "Standard PC (Q35 + ICH9, 2009)";
@@ -364,6 +365,7 @@ static void pc_q35_5_1_machine_options(MachineClass *m)
compat_props_add(m->compat_props, hw_compat_5_1, hw_compat_5_1_len);
compat_props_add(m->compat_props, pc_compat_5_1, pc_compat_5_1_len);
pcmc->kvmclock_create_always = false;
+ pcmc->pci_root_uid = 1;
}
DEFINE_Q35_MACHINE(v5_1, "pc-q35-5.1", NULL,
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 911e460097..7f8e1a791f 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -99,6 +99,7 @@ struct PCMachineClass {
int legacy_acpi_table_size;
unsigned acpi_data_size;
bool do_not_add_smb_acpi;
+ int pci_root_uid;
/* SMBIOS compat: */
bool smbios_defaults;

1
debian/patches/series vendored
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@ -6,6 +6,7 @@ extra/0005-virtiofsd-optionally-return-inode-pointer-from-lo_do.patch
extra/0006-virtiofsd-prevent-opening-of-special-files-CVE-2020-.patch
extra/0007-virtiofsd-Add-_llseek-to-the-seccomp-whitelist.patch
extra/0008-virtiofsd-Add-restart_syscall-to-the-seccomp-whiteli.patch
extra/0009-i386-acpi-restore-device-paths-for-pre-5.1-vms.patch
bitmap-mirror/0001-drive-mirror-add-support-for-sync-bitmap-mode-never.patch
bitmap-mirror/0002-drive-mirror-add-support-for-conditional-and-always-.patch
bitmap-mirror/0003-mirror-add-check-for-bitmap-mode-without-bitmap.patch