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Re: [Xen-devel] [PATCH] x86/amd: fix crash as Xen Dom0 on AMD Trinity systems
- To: Borislav Petkov <bp@xxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Jacob Shin <jacob.shin@xxxxxxx>, Andre Przywara <andre.przywara@xxxxxxx>, jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Jan Beulich <JBeulich@xxxxxxxx>, mingo@xxxxxxx, tglx@xxxxxxxxxxxxx
- From: "H. Peter Anvin" <hpa@xxxxxxxxx>
- Date: Wed, 30 May 2012 11:21:00 -0700
- Delivery-date: Wed, 30 May 2012 18:21:42 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 05/30/2012 11:19 AM, Borislav Petkov wrote:
> On Wed, May 30, 2012 at 08:17:23PM +0200, Borislav Petkov wrote:
>> The other place where we use the amd_safe variants is an obscure K8,
>> revC and earlier fix for _some_ BIOSen and this hasn't bitten us yet
>> so I'm assuming people haven't run xen on such boxes yet. Does it need
>> fixing? Probably, if we really really have to.
>
> I'm being told we're safe here. Those boxes didn't have virtualization
> support yet (SVM) so this one doesn't need fixing.
>
This is for PV, not for HVM (VT-x/SVM). HVM doesn't have this kind of
drain bamage.
-hpa
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