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Commit 0853d2c1 authored by Nitin A Kamble's avatar Nitin A Kamble Committed by Avi Kivity
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KVM: Fix cpuid leaf 0xb loop termination 



For cpuid leaf 0xb the bits 8-15 in ECX register define the end of counting
leaf.      The previous code was using bits 0-7 for this purpose, which is
a bug.

Signed-off-by: default avatarNitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent fcfdbd26

arch/x86/kvm/x86.c

+1 −1
Original line number Diff line number Diff line
@@ -1276,7 +1276,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, 
		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;

		/* read more entries until level_type is zero */

		for (i = 1; *nent < maxnent; ++i) {

			level_type = entry[i - 1].ecx & 0xff;

			level_type = entry[i - 1].ecx & 0xff00;

			if (!level_type)

				break;

			do_cpuid_1_ent(&entry[i], function, i);