Enhance test_cr3_targets() to verify that attempting to write CR3-target value fields beyond the reported number of supported targets fails. Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> --- x86/vmx_tests.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/x86/vmx_tests.c b/x86/vmx_tests.c index 1f97fe3..f5c72e6 100644 --- a/x86/vmx_tests.c +++ b/x86/vmx_tests.c @@ -3570,6 +3570,10 @@ static void test_cr3_targets(void) for (i = 0; i <= supported_targets + 1; i++) try_cr3_target_count(i, supported_targets); vmcs_write(CR3_TARGET_COUNT, cr3_targets); + + /* VMWRITE to nonexistent target fields should fail. */ + for (i = supported_targets; i < 256; i++) + TEST_ASSERT(vmcs_write(CR3_TARGET_0 + i*2, 0)); } /* -- 2.26.0
