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| author |   Jim Mattson <jmattson@google.com> | 2017-05-23 11:52:54 -0700 |
|---|---|---|
| committer |   Radim Krčmář <rkrcmar@redhat.com> | 2017-06-07 16:28:55 +0200 |
| commit | 4531662d1abf6c1f0e5c2b86ddb60e61509786c8 (patch) | |
| tree | 9286a5be696514f307a64bf21328ab7a14d56725 /arch/x86/include/asm/msr-index.h | |
| parent | kvm: x86: Guest BNDCFGS requires guest MPX support (diff) | |
| download | linux-dev-4531662d1abf6c1f0e5c2b86ddb60e61509786c8.tar.xz linux-dev-4531662d1abf6c1f0e5c2b86ddb60e61509786c8.zip | |
kvm: vmx: Check value written to IA32_BNDCFGS
Bits 11:2 must be zero and the linear addess in bits 63:12 must be
canonical. Otherwise, WRMSR(BNDCFGS) should raise #GP.
Fixes: 0dd376e709975779 ("KVM: x86: add MSR_IA32_BNDCFGS to msrs_to_save")
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/msr-index.h')
| -rw-r--r-- | arch/x86/include/asm/msr-index.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index 673f9ac50f6d..dbf266b0d14a 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -420,6 +420,8 @@ #define MSR_IA32_TSC_ADJUST 0x0000003b #define MSR_IA32_BNDCFGS 0x00000d90 +#define MSR_IA32_BNDCFGS_RSVD 0x00000ffc + #define MSR_IA32_XSS 0x00000da0 #define FEATURE_CONTROL_LOCKED (1<<0) |