On 26/06/2018 10:58, Robert Hoo wrote:
>> This is not needed, because pred_cmd is write only and arch_capabilities
>> is read only. The guest cannot modify any of them.
>>
> Thanks Paolo. Yes, indeed unnecessary.
> I looked into the
> 336996-Speculative-Execution-Side-Channel-Mitigations.pdf
On Mon, 2018-06-25 at 13:51 +0200, Paolo Bonzini wrote:
> On 25/06/2018 05:39, Robert Hoo wrote:
> > IA32_PRED_CMD MSR gives software a way to issue commands that affect the
> > state
> > of indirect branch predictors. Enumerated by CPUID.(EAX=7H,ECX=0):EDX[26].
> > IA32_ARCH_CAPABILITIES MSR
On 25/06/2018 05:39, Robert Hoo wrote:
> IA32_PRED_CMD MSR gives software a way to issue commands that affect the state
> of indirect branch predictors. Enumerated by CPUID.(EAX=7H,ECX=0):EDX[26].
> IA32_ARCH_CAPABILITIES MSR enumerates architectural features of RDCL_NO and
> IBRS_ALL. Enumerated
IA32_PRED_CMD MSR gives software a way to issue commands that affect the state
of indirect branch predictors. Enumerated by CPUID.(EAX=7H,ECX=0):EDX[26].
IA32_ARCH_CAPABILITIES MSR enumerates architectural features of RDCL_NO and
IBRS_ALL. Enumerated by CPUID.(EAX=07H, ECX=0):EDX[29].
