D61141.1794350131.diff
No OneTemporary
Actions

Authored By

Unknown

Size

754 B

Referenced Files

None

Subscribers

None

D61141.1794350131.diff
View Options

	diff --git a/sys/amd64/vmm/x86.h b/sys/amd64/vmm/x86.h
	--- a/sys/amd64/vmm/x86.h
	+++ b/sys/amd64/vmm/x86.h
	@@ -53,6 +53,7 @@
	#define CPUID_8000_0008 (0x80000008)
	#define CPUID_8000_001D (0x8000001D)
	#define CPUID_8000_001E (0x8000001E)
	+#define CPUID_8000_0022 (0x80000022)

	/*
	* CPUID instruction Fn0000_0001:
	diff --git a/sys/amd64/vmm/x86.c b/sys/amd64/vmm/x86.c
	--- a/sys/amd64/vmm/x86.c
	+++ b/sys/amd64/vmm/x86.c
	@@ -299,6 +299,17 @@
	regs[3] = 0;
	break;

	+ case CPUID_8000_0022:
	+ /*
	+ * AMD uses this leaf to advertise performance
	+ * counters and PerfMonV2. vmm implements neither.
	+ */
	+ regs[0] = 0;
	+ regs[1] = 0;
	+ regs[2] = 0;
	+ regs[3] = 0;
	+ break;
	+
	case CPUID_0000_0001:
	do_cpuid(1, regs);