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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2010-02-23 17:47:57 +0100 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 16:36:14 +0100 |
| commit | d2be1651b736002e0c76d7095d6c0ba77b4a897c (patch) | |
| tree | fbbf39d27d894ce9e6d2f57cc252893fc6195065 | |
| parent | KVM: VMX: Update instruction length on intercepted BP (diff) | |
| download | linux-d2be1651b736002e0c76d7095d6c0ba77b4a897c.tar.xz linux-d2be1651b736002e0c76d7095d6c0ba77b4a897c.zip | |
KVM: x86: Add KVM_CAP_X86_ROBUST_SINGLESTEP
This marks the guest single-step API improvement of 94fe45da and
91586a3b with a capability flag to allow reliable detection by user
space.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: stable@kernel.org (2.6.33)
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 | ||||
| -rw-r--r-- | include/linux/kvm.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c3d2acbbb91b..e46282a56565 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1570,6 +1570,7 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_HYPERV_VAPIC: case KVM_CAP_HYPERV_SPIN: case KVM_CAP_PCI_SEGMENT: + case KVM_CAP_X86_ROBUST_SINGLESTEP: r = 1; break; case KVM_CAP_COALESCED_MMIO: diff --git a/include/linux/kvm.h b/include/linux/kvm.h index dfa54be881f4..60df9c84ecae 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -501,6 +501,7 @@ struct kvm_ioeventfd { #define KVM_CAP_HYPERV_VAPIC 45 #define KVM_CAP_HYPERV_SPIN 46 #define KVM_CAP_PCI_SEGMENT 47 +#define KVM_CAP_X86_ROBUST_SINGLESTEP 51 #ifdef KVM_CAP_IRQ_ROUTING |