KVM: x86: Add KVM_CAP_X86_ROBUST_SINGLESTEP
authorJan Kiszka <jan.kiszka@siemens.com>
Tue, 23 Feb 2010 16:47:57 +0000 (17:47 +0100)
committerMarcelo Tosatti <mtosatti@redhat.com>
Mon, 1 Mar 2010 15:36:14 +0000 (12:36 -0300)
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>
arch/x86/kvm/x86.c
include/linux/kvm.h

index c3d2acbbb91b82fab13770f2a2644fe87b8fee0e..e46282a565658bdcc3ed2bae40677948cfcb3bf9 100644 (file)
@@ -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:
index dfa54be881f4dad17bb22aba50640f15211a7e84..60df9c84ecae2e0606d1ffc3cc8c9ec7d79785d9 100644 (file)
@@ -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