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| author | Joerg Roedel <joerg.roedel@amd.com> | 2010-12-07 17:15:06 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 11:30:49 +0200 |
| commit | 81dd35d42c9aef3c1f7ae6ce4cf6a0d382661db5 (patch) | |
| tree | ac263e921a56954c8e72668e1bcf5afb82a24bb7 /arch/x86/include/asm | |
| parent | d4dbf470096c51cb4785167ea59fdbdea87ccbe4 (diff) | |
| download | kernel_samsung_smdk4412-81dd35d42c9aef3c1f7ae6ce4cf6a0d382661db5.zip kernel_samsung_smdk4412-81dd35d42c9aef3c1f7ae6ce4cf6a0d382661db5.tar.gz kernel_samsung_smdk4412-81dd35d42c9aef3c1f7ae6ce4cf6a0d382661db5.tar.bz2 | |
KVM: SVM: Add xsetbv intercept
This patch implements the xsetbv intercept to the AMD part
of KVM. This makes AVX usable in a save way for the guest on
AVX capable AMD hardware.
The patch is tested by using AVX in the guest and host in
parallel and checking for data corruption. I also used the
KVM xsave unit-tests and they all pass.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/svm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h index 82ecaa3..f7087bf 100644 --- a/arch/x86/include/asm/svm.h +++ b/arch/x86/include/asm/svm.h @@ -47,6 +47,7 @@ enum { INTERCEPT_MONITOR, INTERCEPT_MWAIT, INTERCEPT_MWAIT_COND, + INTERCEPT_XSETBV, }; @@ -329,6 +330,7 @@ struct __attribute__ ((__packed__)) vmcb { #define SVM_EXIT_MONITOR 0x08a #define SVM_EXIT_MWAIT 0x08b #define SVM_EXIT_MWAIT_COND 0x08c +#define SVM_EXIT_XSETBV 0x08d #define SVM_EXIT_NPF 0x400 #define SVM_EXIT_ERR -1 |