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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2010-02-19 19:38:07 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-04-25 12:38:28 +0300 |
| commit | 48005f64d0ea965d454e38b5181af4aba9bdef5b (patch) | |
| tree | 15aa4fe79716e3089893c8e9d48d7e0b898d2693 /include/linux | |
| parent | 03b82a30ea8b26199901b219848d706dbd70c609 (diff) | |
| download | lwn-48005f64d0ea965d454e38b5181af4aba9bdef5b.tar.gz lwn-48005f64d0ea965d454e38b5181af4aba9bdef5b.zip | |
KVM: x86: Save&restore interrupt shadow mask
The interrupt shadow created by STI or MOV-SS-like operations is part of
the VCPU state and must be preserved across migration. Transfer it in
the spare padding field of kvm_vcpu_events.interrupt.
As a side effect we now have to make vmx_set_interrupt_shadow robust
against both shadow types being set. Give MOV SS a higher priority and
skip STI in that case to avoid that VMX throws a fault on next entry.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kvm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 360f85e8c435..48516a2a0b84 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -502,6 +502,7 @@ struct kvm_ioeventfd { #define KVM_CAP_HYPERV_SPIN 46 #define KVM_CAP_PCI_SEGMENT 47 #define KVM_CAP_PPC_PAIRED_SINGLES 48 +#define KVM_CAP_INTR_SHADOW 49 #define KVM_CAP_X86_ROBUST_SINGLESTEP 51 #ifdef KVM_CAP_IRQ_ROUTING |