From: Jan Kiszka Date: Tue, 23 Feb 2010 16:47:57 +0000 (+0100) Subject: KVM: x86: Add KVM_CAP_X86_ROBUST_SINGLESTEP X-Git-Tag: v2.6.34-rc1~193^2 X-Git-Url: https://bbs.cooldavid.org/git/?a=commitdiff_plain;h=d2be1651b736002e0c76d7095d6c0ba77b4a897c;p=net-next-2.6.git 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 Cc: stable@kernel.org (2.6.33) Signed-off-by: Avi Kivity --- diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c3d2acbbb91..e46282a5656 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 dfa54be881f..60df9c84eca 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