diff options
| author | Bharata B Rao <bharata@linux.ibm.com> | 2020-01-02 11:11:55 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2020-01-08 11:01:59 +1100 |
| commit | 0b731978818ff4dd21eb250e8d8d2803015afba3 (patch) | |
| tree | bb641bc7bb4e4a998696484e4b256f1ab3d3002f /target | |
| parent | 6cc64796f2b031186b6ae9c6c5932ea972a8c6cd (diff) | |
ppc/spapr: Don't call KVM_SVM_OFF ioctl on TCG
Invoking KVM_SVM_OFF ioctl for TCG guests will lead to a QEMU crash.
Fix this by ensuring that we don't call KVM_SVM_OFF ioctl on TCG.
Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Fixes: 4930c1966249 ("ppc/spapr: Support reboot of secure pseries guest")
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Message-Id: <20200102054155.13175-1-bharata@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target')
| -rw-r--r-- | target/ppc/kvm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 45a26c0fc6..b5799e62b4 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -2902,9 +2902,12 @@ void kvmppc_set_reg_tb_offset(PowerPCCPU *cpu, int64_t tb_offset) void kvmppc_svm_off(Error **errp) { int rc; - KVMState *s = KVM_STATE(current_machine->accelerator); - rc = kvm_vm_ioctl(s, KVM_PPC_SVM_OFF); + if (!kvm_enabled()) { + return; + } + + rc = kvm_vm_ioctl(KVM_STATE(current_machine->accelerator), KVM_PPC_SVM_OFF); if (rc && rc != -ENOTTY) { error_setg_errno(errp, -rc, "KVM_PPC_SVM_OFF ioctl failed"); } |