From: Avi Kivity <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
diff --git a/kvm/test/x86/svm.c b/kvm/test/x86/svm.c
index 5bb64ff..222356d 100644
--- a/kvm/test/x86/svm.c
+++ b/kvm/test/x86/svm.c
@@ -146,12 +146,36 @@ static bool check_vmrun(struct test *test)
return test->vmcb->control.exit_code == SVM_EXIT_VMRUN;
}
+static void prepare_cr3_intercept(struct test *test)
+{
+ default_prepare(test);
+ test->vmcb->control.intercept_cr_read |= 1 << 3;
+}
+
+static void test_cr3_intercept(struct test *test)
+{
+ asm volatile ("mov %%cr3, %0" : "=r"(test->scratch) : : "memory");
+}
+
+static bool check_cr3_intercept(struct test *test)
+{
+ return test->vmcb->control.exit_code == SVM_EXIT_READ_CR3;
+}
+
+static bool check_cr3_nointercept(struct test *test)
+{
+ return null_check(test) && test->scratch == read_cr3();
+}
+
static struct test tests[] = {
{ "null", default_prepare, null_test, default_finished, null_check },
{ "vmrun", default_prepare, test_vmrun, default_finished, check_vmrun },
{ "vmrun intercept check", prepare_no_vmrun_int, null_test,
default_finished, check_no_vmrun_int },
-
+ { "cr3 read intercept", prepare_cr3_intercept, test_cr3_intercept,
+ default_finished, check_cr3_intercept },
+ { "cr3 read nointercept", default_prepare, test_cr3_intercept,
+ default_finished, check_cr3_nointercept },
};
int main(int ac, char **av)
--
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