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Re: [Xen-devel] [PATCH 2/9] x86/cpuid: Drop the synthetic X86_FEATURE_XEN_IBPB

To: "Andrew Cooper" <andrew.cooper3@xxxxxxxxxx>
From: "Jan Beulich" <JBeulich@xxxxxxxx>
Date: Tue, 04 Dec 2018 09:21:44 -0700
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, Roger Pau Monne <roger.pau@xxxxxxxxxx>
Delivery-date: Tue, 04 Dec 2018 16:24:00 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

>>> On 03.12.18 at 17:18, <andrew.cooper3@xxxxxxxxxx> wrote:
> This appears to be a vestigial remnent of an old version of the
> XSA-254/Spectre series, and has never been used.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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References:
- [Xen-devel] [PATCH 0/9] xen/amd: Support for guest MSR_VIRT_SPEC_CTRL support
  - From: Andrew Cooper
- [Xen-devel] [PATCH 2/9] x86/cpuid: Drop the synthetic X86_FEATURE_XEN_IBPB
  - From: Andrew Cooper

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