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Commit d2be1651 authored by Jan Kiszka's avatar Jan Kiszka Committed by Marcelo Tosatti
Browse files

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: default avatarJan Kiszka <jan.kiszka@siemens.com>
Cc: stable@kernel.org (2.6.33)
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent c573cd22

arch/x86/kvm/x86.c

+1 −0
Original line number Diff line number Diff line
@@ -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:

include/linux/kvm.h

+1 −0
Original line number Diff line number Diff line
@@ -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