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[PATCH v2 00/20] Workaround Windows failing to find 64bit SMBIOS entry p
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From: |
Igor Mammedov |
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Subject: |
[PATCH v2 00/20] Workaround Windows failing to find 64bit SMBIOS entry point with SeaBIOS |
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Date: |
Tue, 5 Mar 2024 16:57:04 +0100 |
Changelog:
* QAPI style fixes (Markus Armbruster <armbru@redhat.com>)
* squash 11/19 into 10/19 (Ani Sinha <anisinha@redhat.com>)
* split '[PATCH 09/19] smbios: build legacy mode code only for 'pc' machine'
in 3 smaller patches, to make it more readable
smbios: add smbios_add_usr_blob_size() helper
smbios: rename/expose structures/bitmaps used by both legacy and modern
code
smbios: build legacy mode code only for 'pc' machine
* pick up acks
Windows (10) bootloader when running on top of SeaBIOS, fails to find
SMBIOSv3 entry point. Tracing it shows that it looks for v2 anchor markers
only and not v3. Tricking it into believing that entry point is found
lets Windows successfully locate and parse SMBIOSv3 tables. Whether it
will be fixed on Windows side is not clear so here goes a workaround.
Idea is to try build v2 tables if QEMU configuration permits,
and fallback to v3 tables otherwise. That will mask Windows issue
form majority of users.
However if VM configuration can't be described (typically large VMs)
by v2 tables, QEMU will use SMBIOSv3 and Windows will hit the issue
again. In this case complain to Microsoft and/or use UEFI instead of
SeaBIOS (requires reinstall).
Default compat setting of smbios-entry-point-type after series
for pc/q35 machines:
* 9.0-newer: 'auto'
* 8.1-8.2: '64'
* 8.0-older: '32'
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/2008
CC: peter.maydell@linaro.org
CC: pbonzini@redhat.com
CC: mst@redhat.com
CC: gaosong@loongson.cn
CC: alistair.francis@wdc.com
CC: palmer@dabbelt.com
CC: bin.meng@windriver.com
CC: liwei1518@gmail.com
CC: dbarboza@ventanamicro.com
CC: zhiwei_liu@linux.alibaba.com
CC: imammedo@redhat.com
CC: anisinha@redhat.com
CC: philmd@linaro.org
CC: wangyanan55@huawei.com
CC: eblake@redhat.com
CC: armbru@redhat.com
CC: qemu-arm@nongnu.org
CC: qemu-riscv@nongnu.org
CC: f.ebner@proxmox.com
Igor Mammedov (20):
tests: smbios: make it possible to write SMBIOS only test
tests: smbios: add test for -smbios type=11 option
tests: smbios: add test for legacy mode CLI options
smbios: cleanup smbios_get_tables() from legacy handling
smbios: get rid of smbios_smp_sockets global
smbios: get rid of smbios_legacy global
smbios: avoid mangling user provided tables
smbios: don't check type4 structures in legacy mode
smbios: add smbios_add_usr_blob_size() helper
smbios: rename/expose structures/bitmaps used by both legacy and
modern code
smbios: build legacy mode code only for 'pc' machine
smbios: handle errors consistently
smbios: get rid of global smbios_ep_type
smbios: extend smbios-entry-point-type with 'auto' value
smbios: in case of entry point is 'auto' try to build v2 tables 1st
smbios: error out when building type 4 table is not possible
smbios: clear smbios_type4_count before building tables
tests: acpi/smbios: whitelist expected blobs
pc/q35: set SMBIOS entry point type to 'auto' by default
tests: acpi: update expected SSDT.dimmpxm blob
hw/i386/fw_cfg.h | 3 +-
include/hw/firmware/smbios.h | 28 +-
hw/arm/virt.c | 6 +-
hw/i386/Kconfig | 1 +
hw/i386/fw_cfg.c | 14 +-
hw/i386/pc.c | 4 +-
hw/i386/pc_piix.c | 4 +
hw/i386/pc_q35.c | 3 +
hw/loongarch/virt.c | 7 +-
hw/riscv/virt.c | 6 +-
hw/smbios/Kconfig | 2 +
hw/smbios/meson.build | 4 +
hw/smbios/smbios.c | 481 +++++++++++----------------
hw/smbios/smbios_legacy.c | 185 +++++++++++
hw/smbios/smbios_legacy_stub.c | 16 +
qapi/machine.json | 5 +-
tests/data/acpi/q35/SSDT.dimmpxm | Bin 1815 -> 1815 bytes
tests/data/smbios/type11_blob | Bin 0 -> 11 bytes
tests/data/smbios/type11_blob.legacy | Bin 0 -> 10 bytes
tests/qtest/bios-tables-test.c | 81 ++++-
20 files changed, 534 insertions(+), 316 deletions(-)
create mode 100644 hw/smbios/smbios_legacy.c
create mode 100644 hw/smbios/smbios_legacy_stub.c
create mode 100644 tests/data/smbios/type11_blob
create mode 100644 tests/data/smbios/type11_blob.legacy
--
2.39.3
- [PATCH v2 00/20] Workaround Windows failing to find 64bit SMBIOS entry point with SeaBIOS,
Igor Mammedov <=
- [PATCH v2 01/20] tests: smbios: make it possible to write SMBIOS only test, Igor Mammedov, 2024/03/05
- [PATCH v2 02/20] tests: smbios: add test for -smbios type=11 option, Igor Mammedov, 2024/03/05
- [PATCH v2 03/20] tests: smbios: add test for legacy mode CLI options, Igor Mammedov, 2024/03/05
- [PATCH v2 04/20] smbios: cleanup smbios_get_tables() from legacy handling, Igor Mammedov, 2024/03/05
- [PATCH v2 05/20] smbios: get rid of smbios_smp_sockets global, Igor Mammedov, 2024/03/05
- [PATCH v2 06/20] smbios: get rid of smbios_legacy global, Igor Mammedov, 2024/03/05
- [PATCH v2 07/20] smbios: avoid mangling user provided tables, Igor Mammedov, 2024/03/05