Author: grehan
Date: Fri Sep 6 05:16:10 2013
New Revision: 255287
URL: http://svnweb.freebsd.org/changeset/base/255287
Log:
Allow CPUID leaf 0xD to be read as zeroes.
Linux reads this even though extended features
aren't exposed.
Support for 0xD will be expanded once AVX[2]
is exposed to the guest in upcoming work.
Modified:
head/sys/amd64/vmm/x86.c
head/sys/amd64/vmm/x86.h
Modified: head/sys/amd64/vmm/x86.c
==============================================================================
--- head/sys/amd64/vmm/x86.c Fri Sep 6 02:57:15 2013 (r255286)
+++ head/sys/amd64/vmm/x86.c Fri Sep 6 05:16:10 2013 (r255287)
@@ -200,6 +200,7 @@ x86_emulate_cpuid(struct vm *vm, int vcp
case CPUID_0000_0006:
case CPUID_0000_0007:
case CPUID_0000_000A:
+ case CPUID_0000_000D:
/*
* Handle the access, but report 0 for
* all options
Modified: head/sys/amd64/vmm/x86.h
==============================================================================
--- head/sys/amd64/vmm/x86.h Fri Sep 6 02:57:15 2013 (r255286)
+++ head/sys/amd64/vmm/x86.h Fri Sep 6 05:16:10 2013 (r255287)
@@ -38,6 +38,7 @@
#define CPUID_0000_0007 (0x7)
#define CPUID_0000_000A (0xA)
#define CPUID_0000_000B (0xB)
+#define CPUID_0000_000D (0xD)
#define CPUID_8000_0000 (0x80000000)
#define CPUID_8000_0001 (0x80000001)
#define CPUID_8000_0002 (0x80000002)
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