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| author | Wincy Van <fanwenyi0529@gmail.com> | 2014-12-11 08:52:58 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-01-08 22:45:14 +0100 |
| commit | ff651cb613b4cc8aa2e4284525948872b4d77d66 (patch) | |
| tree | 8c3bcd9e4076404fa9a899b47ce321c716296e32 /arch/x86/include/uapi/asm/vmx.h | |
| parent | b1940cd21c0f4abdce101253e860feff547291b0 (diff) | |
| download | linux-0-day-ff651cb613b4cc8aa2e4284525948872b4d77d66.tar.gz linux-0-day-ff651cb613b4cc8aa2e4284525948872b4d77d66.tar.xz | |
KVM: nVMX: Add nested msr load/restore algorithm
Several hypervisors need MSR auto load/restore feature.
We read MSRs from VM-entry MSR load area which specified by L1,
and load them via kvm_set_msr in the nested entry.
When nested exit occurs, we get MSRs via kvm_get_msr, writing
them to L1`s MSR store area. After this, we read MSRs from VM-exit
MSR load area, and load them via kvm_set_msr.
Signed-off-by: Wincy Van <fanwenyi0529@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/uapi/asm/vmx.h')
| -rw-r--r-- | arch/x86/include/uapi/asm/vmx.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/vmx.h b/arch/x86/include/uapi/asm/vmx.h index b813bf9da1e27..ff2b8e28883e9 100644 --- a/arch/x86/include/uapi/asm/vmx.h +++ b/arch/x86/include/uapi/asm/vmx.h @@ -56,6 +56,7 @@ #define EXIT_REASON_MSR_READ 31 #define EXIT_REASON_MSR_WRITE 32 #define EXIT_REASON_INVALID_STATE 33 +#define EXIT_REASON_MSR_LOAD_FAIL 34 #define EXIT_REASON_MWAIT_INSTRUCTION 36 #define EXIT_REASON_MONITOR_INSTRUCTION 39 #define EXIT_REASON_PAUSE_INSTRUCTION 40 @@ -116,10 +117,14 @@ { EXIT_REASON_APIC_WRITE, "APIC_WRITE" }, \ { EXIT_REASON_EOI_INDUCED, "EOI_INDUCED" }, \ { EXIT_REASON_INVALID_STATE, "INVALID_STATE" }, \ + { EXIT_REASON_MSR_LOAD_FAIL, "MSR_LOAD_FAIL" }, \ { EXIT_REASON_INVD, "INVD" }, \ { EXIT_REASON_INVVPID, "INVVPID" }, \ { EXIT_REASON_INVPCID, "INVPCID" }, \ { EXIT_REASON_XSAVES, "XSAVES" }, \ { EXIT_REASON_XRSTORS, "XRSTORS" } +#define VMX_ABORT_SAVE_GUEST_MSR_FAIL 1 +#define VMX_ABORT_LOAD_HOST_MSR_FAIL 4 + #endif /* _UAPIVMX_H */ |