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| author | Jan Kiszka <jan.kiszka@web.de> | 2009-11-12 01:04:25 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-12-03 08:32:25 +0100 |
| commit | 3cfc3092f40bc37c57ba556cfd8de4218f2135ab (patch) | |
| tree | 562d61febfe7d3c99ea08e376b3f3c016cff613c /arch/x86/include/asm/kvm.h | |
| parent | KVM: VMX: Report unexpected simultaneous exceptions as internal errors (diff) | |
| download | linux-3cfc3092f40bc37c57ba556cfd8de4218f2135ab.tar.xz linux-3cfc3092f40bc37c57ba556cfd8de4218f2135ab.zip | |
KVM: x86: Add KVM_GET/SET_VCPU_EVENTS
This new IOCTL exports all yet user-invisible states related to
exceptions, interrupts, and NMIs. Together with appropriate user space
changes, this fixes sporadic problems of vmsave/restore, live migration
and system reset.
[avi: future-proof abi by adding a flags field]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm.h')
| -rw-r--r-- | arch/x86/include/asm/kvm.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h index ef9b4b73cce4..950df434763f 100644 --- a/arch/x86/include/asm/kvm.h +++ b/arch/x86/include/asm/kvm.h @@ -20,6 +20,7 @@ #define __KVM_HAVE_MCE #define __KVM_HAVE_PIT_STATE2 #define __KVM_HAVE_XEN_HVM +#define __KVM_HAVE_VCPU_EVENTS /* Architectural interrupt line count. */ #define KVM_NR_INTERRUPTS 256 @@ -252,4 +253,31 @@ struct kvm_reinject_control { __u8 pit_reinject; __u8 reserved[31]; }; + +/* for KVM_GET/SET_VCPU_EVENTS */ +struct kvm_vcpu_events { + struct { + __u8 injected; + __u8 nr; + __u8 has_error_code; + __u8 pad; + __u32 error_code; + } exception; + struct { + __u8 injected; + __u8 nr; + __u8 soft; + __u8 pad; + } interrupt; + struct { + __u8 injected; + __u8 pending; + __u8 masked; + __u8 pad; + } nmi; + __u32 sipi_vector; + __u32 flags; + __u32 reserved[10]; +}; + #endif /* _ASM_X86_KVM_H */ |