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Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE supp
From: |
Raj, Ashok |
Subject: |
Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU |
Date: |
Mon, 14 Dec 2015 14:11:46 -0500 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Mon, Dec 14, 2015 at 05:37:38PM +0100, Borislav Petkov wrote:
>
> ... and obviously LMCE is vendor-specific so it cannot be enabled on
> !Intel guests with a define like that. mce_init() in qemu should check
> vendor too.
>
> The same mistake was done with SER_P but that's much harder to change,
> as we discussed previously.
>
This is mostly harmless.. since the MCG_CAP space is shared and has no
conflict between vendors. Also just the CAP being set has no effect.
The Guest OS needs to opt-in and the SIGBUS indicating SRAR are the only
ones that are treated special treatment. Also Intel was the only one
broadcasting MCE's.. so we are like the rest now :-)
Cheers,
Ashok
- [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Ashok Raj, 2015/12/10
- [Qemu-devel] [Patch V2 2/2] x86, mce: Need to translate GPA to HPA to inject error in guest., Ashok Raj, 2015/12/10
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Eduardo Habkost, 2015/12/14
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Raj, Ashok, 2015/12/14
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Borislav Petkov, 2015/12/14
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU,
Raj, Ashok <=
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Eduardo Habkost, 2015/12/14
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Borislav Petkov, 2015/12/14
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Raj, Ashok, 2015/12/14
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Borislav Petkov, 2015/12/15
- Re: [Qemu-devel] [Patch V2 1/2] x86, mce: Basic support to add LMCE support to QEMU, Eduardo Habkost, 2015/12/15