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| author | Xiantao Zhang <xiantao.zhang@intel.com> | 2008-11-21 17:16:07 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2008-12-31 16:54:59 +0200 |
| commit | 9f7d5bb5e2abf5316bb17eb3e7751dbafa09e5cf (patch) | |
| tree | 1d26023244a8882cda214019b59a6a237f707e55 /arch/ia64/kvm/process.c | |
| parent | 5e2be19832ccf93bf731a1758ec9fabf48414584 (diff) | |
| download | blackbird-op-linux-9f7d5bb5e2abf5316bb17eb3e7751dbafa09e5cf.tar.gz blackbird-op-linux-9f7d5bb5e2abf5316bb17eb3e7751dbafa09e5cf.zip | |
KVM: ia64: Add handler for crashed vmm
Since vmm runs in an isolated address space and it is just a copy
of host's kvm-intel module, so once vmm crashes, we just crash all guests
running on it instead of crashing whole kernel.
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/ia64/kvm/process.c')
| -rw-r--r-- | arch/ia64/kvm/process.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/ia64/kvm/process.c b/arch/ia64/kvm/process.c index cefc349ce354..552d07724207 100644 --- a/arch/ia64/kvm/process.c +++ b/arch/ia64/kvm/process.c @@ -942,8 +942,20 @@ static void vcpu_do_resume(struct kvm_vcpu *vcpu) ia64_set_pta(vcpu->arch.vhpt.pta.val); } +static void vmm_sanity_check(struct kvm_vcpu *vcpu) +{ + struct exit_ctl_data *p = &vcpu->arch.exit_data; + + if (!vmm_sanity && p->exit_reason != EXIT_REASON_DEBUG) { + panic_vm(vcpu, "Failed to do vmm sanity check," + "it maybe caused by crashed vmm!!\n\n"); + } +} + static void kvm_do_resume_op(struct kvm_vcpu *vcpu) { + vmm_sanity_check(vcpu); /*Guarantee vcpu runing on healthy vmm!*/ + if (test_and_clear_bit(KVM_REQ_RESUME, &vcpu->requests)) { vcpu_do_resume(vcpu); return; @@ -969,3 +981,11 @@ void vmm_transition(struct kvm_vcpu *vcpu) 1, 0, 0, 0, 0, 0); kvm_do_resume_op(vcpu); } + +void vmm_panic_handler(u64 vec) +{ + struct kvm_vcpu *vcpu = current_vcpu; + vmm_sanity = 0; + panic_vm(vcpu, "Unexpected interruption occurs in VMM, vector:0x%lx\n", + vec2off[vec]); +} |
