[PATCH 0/2] Introduce panic hypercall

Daniel Gollub
2011-06-20T13:45:56Z

Introduce panic hypercall to enable the crashing guest to notify the
host. This enables the host to run some actions as soon a guest
crashed (kernel panic).

This patch series introduces the panic hypercall at the host end.
As well as the hypercall for KVM paravirtuliazed Linux guests, by
registering the hypercall to the panic_notifier_list.

The basic idea is to create KVM crashdump automatically as soon the
guest paniced and power-cycle the VM (e.g. libvirt <on_crash />).

Daniel Gollub (2):
Inroduce panic hypercall KVM_HC_PANIC (host)
Call KVM_HC_PANIC if guest panics

arch/x86/kernel/kvm.c | 16 ++++++++++++++++
arch/x86/kvm/x86.c | 9 +++++++++
include/linux/kvm.h | 1 +
include/linux/kvm_host.h | 1 +
include/linux/kvm_para.h | 1 +
5 files changed, 28 insertions(+), 0 deletions(-)