[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 4/6] x86: stop handling MSR_IA32_XSS save/restore in implementation code
>>> On 07.01.19 at 13:02, <paul.durrant@xxxxxxxxxx> wrote: > --- a/xen/arch/x86/msr.c > +++ b/xen/arch/x86/msr.c > @@ -164,6 +164,13 @@ int guest_rdmsr(struct vcpu *v, uint32_t msr, uint64_t > *val) > > break; > > + case MSR_IA32_XSS: > + if ( !is_hvm_domain(d) || !cp->xstate.xsaves ) Why the is_hvm_domain() check here and below? The CPUID policy bit alone should properly reflect things, and there should be no change needed here if we decided to support XSAVES also for PV guests. With them dropped Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx> Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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