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| author | Andrey Smetanin <asmetanin@virtuozzo.com> | 2015-07-03 15:01:41 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-07-23 08:27:06 +0200 |
| commit | 2ce7918990641b07e70e1b25752d666369e2016e (patch) | |
| tree | 03f59dec22c00e8476ab6c65443eaaf9e67d5182 /Documentation/virtual | |
| parent | e7d9513b60e87f62e41090fa3a26eca796924346 (diff) | |
| download | linux-stable-2ce7918990641b07e70e1b25752d666369e2016e.tar.gz linux-stable-2ce7918990641b07e70e1b25752d666369e2016e.tar.bz2 linux-stable-2ce7918990641b07e70e1b25752d666369e2016e.zip | |
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.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Peter Hornyack <peterhornyack@google.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Gleb Natapov <gleb@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index a7926a90156f..a4ebcb712375 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -3277,6 +3277,7 @@ 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; @@ -3296,6 +3297,10 @@ Valid values for 'type' are: KVM_SYSTEM_EVENT_RESET -- the guest has requested a reset of the VM. As with SHUTDOWN, userspace can choose to ignore the request, or to schedule the reset to occur in the future and may call KVM_RUN again. + KVM_SYSTEM_EVENT_CRASH -- the guest crash occurred and the guest + has requested a crash condition maintenance. Userspace can choose + to ignore the request, or to gather VM memory core dump and/or + reset/shutdown of the VM. /* Fix the size of the union. */ char padding[256]; |