Public git URL: https://github.com/lersek/edk2/commits/smbios_v1
This series extends OvmfPkg/SmbiosPlatformDxe with the following
features on QEMU:
- install SMBIOS tables that are provided over fw_cfg in complete form,
- supply a default Type 0 (BIOS Information) table, and patch it as QEMU
requests via fw_cfg,
- supply a default Type 1 (System Information) table, and patch it as
QEMU requests via fw_cfg.
In the CSM build of SeaBIOS we plan to detect a virtual machine from the
SMBIOS tables, and key access to the debug port off that.
Testing:
* On a RHEL-6.4 qemu-kvm host, "dmidecode" reports the following in a
Fedora 19 guest:
# dmidecode 2.12
# SMBIOS entry point at 0x3f8f7000
SMBIOS 2.7 present.
3 structures occupying 163 bytes.
Table at 0x3F8F6000.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: EFI Development Kit II / OVMF
Version: 0.1
Release Date: 06/03/2013
Address: 0xE8000
Runtime Size: 96 kB
ROM Size: 64 kB
Characteristics:
BIOS characteristics not supported
UEFI is supported
System is a virtual machine
BIOS Revision: 0.1
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Red Hat
Product Name: KVM
Version: RHEL 6.4.0 PC
Serial Number: n/a
UUID: 7B20A9F5-274C-0F58-8183-A89538BCA62A
Wake-up Type: Power Switch
SKU Number: n/a
Family: Red Hat Enterprise Linux
Handle 0xFEFF, DMI type 127, 4 bytes
End Of Table
(In the Type 0 table, I shaped the "unclear" fields "Address" and "ROM
Size" according to what "dmidecode" reported in a SeaBIOS guest.
Regarding the KVM & Red Hat specific values visible in the Type 1
table, they are not hard-wired in the series, it is field patching at
work. The code contains neutral defaults for Type 1 too (see patch
2/2).)
* Tested the "complete table" functionality with a hex-edited Type 3
table passed with the qemu option
-smbios file=.../type3.smbios
and with "dmidecode" in the Fedora 19 guest again.
* Since we don't export Type 4 tables yet (one for each VCPU), but we do
export an MADT ACPI table, I checked the following guests, each with 2
VCPUs, for any CPU count regressions:
- Fedora 19:
- "/proc/cpuinfo" lists 2 processors
- the dmesg says:
efi: SMBIOS=0x3f8f7000 ACPI=0x3f8ff000 ACPI 2.0=0x3f8ff014
[...]
SMBIOS 2.7 present.
DMI: Red Hat KVM, BIOS 0.1 06/03/2013
[...]
Using ACPI (MADT) for SMP configuration information
smpboot: Allowing 2 CPUs, 0 hotplug CPUs
- RHEL-6:
- "/proc/cpuinfo" lists 2 processors
- the dmesg says:
EFI v2.31 by EDK II
SMBIOS=0x3f8f7000 ACPI=0x3f8ff000 ACPI 2.0=0x3f8ff014
[...]
DMI 2.7 present.
SMBIOS version 2.7 @ 0x3F8F7000
DMI: Red Hat KVM, BIOS 0.1 06/03/2013
[...]
Using ACPI (MADT) for SMP configuration information
SMP: Allowing 2 CPUs, 0 hotplug CPUs
- Windows 2008 R2 SP1:
- CSM build of SeaBIOS included in OVMF.fd,
- tested with SVN r14386, r14378, r14377, and r14372 reverted, in
this order (the chronologically first one, r14372, breaks Windows
boot in general, see
<http://thread.gmane.org/gmane.comp.bios.tianocore.devel/3033>;
the other commits depend on r14372),
- Windows Task Manager | Performance | CPU Usage History
displays two charts.
- Windows 8 Consumer Preview Build 8250:
- CSM not needed,
- for this guest too it is necessary to back out r14372 and
dependent commits (see above),
- Task Manager | Performance | Change graph to | Logical processors
displays two charts.
Laszlo Ersek (3):
OvmfPkg/SmbiosPlatformDxe: install tables and save fields coming from
QEMU
OvmfPkg/SmbiosPlatformDxe: install and patch default table for SMBIOS
Type 0
OvmfPkg/SmbiosPlatformDxe: install and patch default table for SMBIOS
Type 1
OvmfPkg/SmbiosPlatformDxe/Qemu.h | 52 ++
OvmfPkg/SmbiosPlatformDxe/QemuInternal.h | 281 +++++++++
OvmfPkg/SmbiosPlatformDxe/Qemu.c | 702 +++++++++++++++++++++++
OvmfPkg/SmbiosPlatformDxe/QemuType0.c | 180 ++++++
OvmfPkg/SmbiosPlatformDxe/QemuType1.c | 178 ++++++
OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c | 4 +
OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf | 6 +
7 files changed, 1403 insertions(+), 0 deletions(-)
create mode 100644 OvmfPkg/SmbiosPlatformDxe/Qemu.h
create mode 100644 OvmfPkg/SmbiosPlatformDxe/QemuInternal.h
create mode 100644 OvmfPkg/SmbiosPlatformDxe/Qemu.c
create mode 100644 OvmfPkg/SmbiosPlatformDxe/QemuType0.c
create mode 100644 OvmfPkg/SmbiosPlatformDxe/QemuType1.c
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