Re: [PATCH v6 3/5] KVM: VMX: Emulate MSR_IA32_ARCH_CAPABILITIES

[Jim Mattson]

On Fri, Feb 2, 2018 at 2:53 AM, Darren Kenny <darren.kenny@xxxxxxxxxx> wrote:
> On Thu, Feb 01, 2018 at 10:59:44PM +0100, KarimAllah Ahmed wrote:
>>
>> Intel processors use MSR_IA32_ARCH_CAPABILITIES MSR to indicate RDCL_NO
>> (bit 0) and IBRS_ALL (bit 1). This is a read-only MSR. By default the
>> contents will come directly from the hardware, but user-space can still
>> override it.
>>
>> [dwmw2: The bit in kvm_cpuid_7_0_edx_x86_features can be unconditional]
>>
>> Cc: Asit Mallick <asit.k.mallick@xxxxxxxxx>
>> Cc: Dave Hansen <dave.hansen@xxxxxxxxx>
>> Cc: Arjan Van De Ven <arjan.van.de.ven@xxxxxxxxx>
>> Cc: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
>> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
>> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
>> Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
>> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
>> Cc: Jun Nakajima <jun.nakajima@xxxxxxxxx>
>> Cc: Andy Lutomirski <luto@xxxxxxxxxx>
>> Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
>> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
>> Cc: Ashok Raj <ashok.raj@xxxxxxxxx>
>> Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
>> Signed-off-by: KarimAllah Ahmed <karahmed@xxxxxxxxx>
>> Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
>
>
> Reviewed-by: Darren Kenny <darren.kenny@xxxxxxxxxx>

Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>