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Re: [Qemu-devel] [6392] Add BIOS fixes from KVM tree
From: |
Carl-Daniel Hailfinger |
Subject: |
Re: [Qemu-devel] [6392] Add BIOS fixes from KVM tree |
Date: |
Thu, 22 Jan 2009 01:14:32 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.17) Gecko/20080922 SUSE/1.1.12-0.1 SeaMonkey/1.1.12 |
Hi,
I'm sorry to say that, but my tests showed that
0004_kvm-bios-add-mtrr-support.patch is buggy. It reads MSR_MTRRcap
unconditionally which is not allowed if the CPUID features do not have
CPUID_MTRR set. Real hardware will #GP in that case.
This was found by my MSR access tracing patch.
Please add a check for the CPUID_MTRR feature bit before reading
MSR_MTRRcap. Thanks.
Regards,
Carl-Daniel
On 21.01.2009 22:46, Anthony Liguori wrote:
> Revision: 6392
> http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6392
> Author: aliguori
> Date: 2009-01-21 21:46:20 +0000 (Wed, 21 Jan 2009)
>
> Log Message:
> -----------
> Add BIOS fixes from KVM tree
>
> See each patch for individual Signed-off-by's/commit logs
>
> [...]
> Added Paths:
> -----------
>
> trunk/pc-bios/bios-pq/0002_kvm-bios-update-smbios-table-to-report-memory-above-4g.patch
> trunk/pc-bios/bios-pq/0003_kvm-bios-generate-mptable-unconditionally.patch
> trunk/pc-bios/bios-pq/0004_kvm-bios-add-mtrr-support.patch
> trunk/pc-bios/bios-pq/0005_kvm-bios-smp-mtrr-support.patch
> trunk/pc-bios/bios-pq/0006_kvm-bios-extend-mtrrs-to-above-4g.patch
>
> trunk/pc-bios/bios-pq/0007_kvm-bios-cleanup-consolidate-above-4g-memory-parsing.patch
>
> trunk/pc-bios/bios-pq/0008_kvm-bios-switch-mtrrs-to-cover-only-the-pci-range-and--default-to-wb.patch
>
> trunk/pc-bios/bios-pq/0009_kvm-bios-resolve-memory-device-roll-over-reporting--issues-with-32g-guests.patch
>
> trunk/pc-bios/bios-pq/0010_kvm-bios-fix-smbios-memory-device-length-boundary--condition.patch
>
--
http://www.hailfinger.org/