The commit is pushed to "branch-rh7-3.10.0-229.7.2.vz7.8.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git after rh7-3.10.0-229.7.2.vz7.8.2 ------> commit 68d3bb61b238c5fdac105590539600cd276fa95d Author: Andrey Smetanin <asmeta...@virtuozzo.com> Date: Fri Oct 2 12:19:35 2015 +0400
ms/kvm/x86: add sending hyper-v crash notification to user space Sending of notification is done by exiting vcpu to user space if KVM_REQ_HV_CRASH is enabled for vcpu. At exit to user space the kvm_run structure contains system_event with type KVM_SYSTEM_EVENT_CRASH to notify about guest crash occurred. ms commit - 2ce7918990641b07e70e1b25752d666369e2016e Signed-off-by: Andrey Smetanin <asmeta...@virtuozzo.com> Signed-off-by: Denis V. Lunev <d...@openvz.org> Reviewed-by: Peter Hornyack <peterhorny...@google.com> CC: Paolo Bonzini <pbonz...@redhat.com> CC: Gleb Natapov <g...@kernel.org> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> --- Documentation/virtual/kvm/api.txt | 1 + arch/x86/kvm/x86.c | 6 ++++++ include/uapi/linux/kvm.h | 1 + 3 files changed, 8 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 9ae0e53..f919ff6 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2687,6 +2687,7 @@ should put the acknowledged interrupt vector into the 'epr' field. struct { #define KVM_SYSTEM_EVENT_SHUTDOWN 1 #define KVM_SYSTEM_EVENT_RESET 2 +#define KVM_SYSTEM_EVENT_CRASH 3 __u32 type; __u64 flags; } system_event; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index eeb63f7..db1017b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5787,6 +5787,12 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) vcpu_scan_ioapic(vcpu); if (kvm_check_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu)) kvm_vcpu_reload_apic_access_page(vcpu); + if (kvm_check_request(KVM_REQ_HV_CRASH, vcpu)) { + vcpu->run->exit_reason = KVM_EXIT_SYSTEM_EVENT; + vcpu->run->system_event.type = KVM_SYSTEM_EVENT_CRASH; + r = 0; + goto out; + } } if (kvm_check_request(KVM_REQ_EVENT, vcpu) || req_int_win) { diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index c35227f..d2ea15d 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -306,6 +306,7 @@ struct kvm_run { struct { #define KVM_SYSTEM_EVENT_SHUTDOWN 1 #define KVM_SYSTEM_EVENT_RESET 2 +#define KVM_SYSTEM_EVENT_CRASH 3 __u32 type; __u64 flags; } system_event; _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel