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| author | Krish Sadhukhan <krish.sadhukhan@oracle.com> | 2020-04-20 18:58:25 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-04-21 12:16:07 -0400 |
| commit | 5c052c904ded7ecd80d8f7efe2803821b45ce483 (patch) | |
| tree | a9277e276364387684e35787810535be92e7c183 | |
| parent | 9870fcb67257874f0b67b8dd433741c1b1b23067 (diff) | |
| download | kvm-unit-tests-5c052c904ded7ecd80d8f7efe2803821b45ce483.tar.gz | |
kvm-unit-tests: nSVM: Test that CR0[63:32] are not set on VMRUN of nested guests
According to section "Canonicalization and Consistency Checks" in APM vol. 2,
the following guest state is illegal:
"CR0[63:32] are not zero."
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Message-Id: <20200420225825.3184-2-krish.sadhukhan@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | x86/svm_tests.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/x86/svm_tests.c b/x86/svm_tests.c index 3f18d37..5a571eb 100644 --- a/x86/svm_tests.c +++ b/x86/svm_tests.c @@ -1633,6 +1633,20 @@ static void svm_guest_state_test(void) vmcb->save.cr0 = cr0; report (svm_vmrun() == SVM_EXIT_ERR, "CR0: %lx", cr0); vmcb->save.cr0 = cr0_saved; + + /* + * CR0[63:32] are not zero + */ + int i; + + cr0 = cr0_saved; + for (i = 32; i < 63; i = i + 4) { + cr0 = cr0_saved | (1ull << i); + vmcb->save.cr0 = cr0; + report (svm_vmrun() == SVM_EXIT_ERR, "CR0[63:32]: %lx", + cr0 >> 32); + } + vmcb->save.cr0 = cr0_saved; } struct svm_test svm_tests[] = { |