diff options
| author | Shane Wang <shane.wang@intel.com> | 2010-04-29 12:09:01 -0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-19 11:36:34 +0300 |
| commit | cafd66595d92591e4bd25c3904e004fc6f897e2d (patch) | |
| tree | 42f38daf5d634ccf958da89de2a20937849deb92 /arch/x86/kernel | |
| parent | f1d86e469b60f9e1afed5c17a6e723c2c9c55ceb (diff) | |
KVM: VMX: enable VMXON check with SMX enabled (Intel TXT)
Per document, for feature control MSR:
Bit 1 enables VMXON in SMX operation. If the bit is clear, execution
of VMXON in SMX operation causes a general-protection exception.
Bit 2 enables VMXON outside SMX operation. If the bit is clear, execution
of VMXON outside SMX operation causes a general-protection exception.
This patch is to enable this kind of check with SMX for VMXON in KVM.
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/tboot.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c index 86c9f91b48a..46b827778d1 100644 --- a/arch/x86/kernel/tboot.c +++ b/arch/x86/kernel/tboot.c @@ -46,6 +46,7 @@ /* Global pointer to shared data; NULL means no measured launch. */ struct tboot *tboot __read_mostly; +EXPORT_SYMBOL(tboot); /* timeout for APs (in secs) to enter wait-for-SIPI state during shutdown */ #define AP_WAIT_TIMEOUT 1 |