Commit a01c8f9b authored Jun 14, 2011 by Yang, Wei Committed by Avi Kivity Jul 12, 2011

KVM: Enable ERMS feature support for KVM



This patch exposes ERMS feature to KVM guests.

The REP MOVSB/STOSB instruction can enhance fast strings attempts to
move as much of the data with larger size load/stores as possible.

Signed-off-by: Yang, Wei <wei.y.yang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

parent 176f61da

arch/x86/kvm/x86.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2372,7 +2372,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,

		/* cpuid 7.0.ebx */
		const u32 kvm_supported_word9_x86_features =
		F(SMEP) \| F(FSGSBASE);
		F(SMEP) \| F(FSGSBASE) \| F(ERMS);

		/* all calls to cpuid_count() should be made on the same cpu */
		get_cpu();