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| author | Aaron Lewis | 2019-05-31 16:14:52 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2019-06-19 16:11:54 +0200 |
| commit | 9dba988edb31d013003b7f00e82dd56f01db70c3 (patch) | |
| tree | cfcd97662a21ec345c913adabdc4dd4b4d2e86af /tools/testing/selftests/kvm/include/kvm_util.h | |
| parent | kvm: tests: Sort tests in the Makefile alphabetically (diff) | |
| download | kernel-qcow2-linux-9dba988edb31d013003b7f00e82dd56f01db70c3.tar.gz kernel-qcow2-linux-9dba988edb31d013003b7f00e82dd56f01db70c3.tar.xz kernel-qcow2-linux-9dba988edb31d013003b7f00e82dd56f01db70c3.zip | |
tests: kvm: Check for a kernel warning
When running with /sys/module/kvm_intel/parameters/unrestricted_guest=N,
test that a kernel warning does not occur informing us that
vcpu->mmio_needed=1. This can happen when KVM_RUN is called after a
triple fault.
This test was made to detect a bug that was reported by Syzkaller
(https://groups.google.com/forum/#!topic/syzkaller/lHfau8E3SOE) and
fixed with commit bbeac2830f4de ("KVM: X86: Fix residual mmio emulation
request to userspace").
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include/kvm_util.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/kvm_util.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index a5a4b28f14d8..bd8eb5579028 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -139,6 +139,8 @@ struct kvm_vm *vm_create_default(uint32_t vcpuid, uint64_t extra_mem_size, void *guest_code); void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code); +bool vm_is_unrestricted_guest(struct kvm_vm *vm); + struct kvm_userspace_memory_region * kvm_userspace_memory_region_find(struct kvm_vm *vm, uint64_t start, uint64_t end); |