From: Joerg Roedel <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
diff --git a/kvm/test/x86/svm.c b/kvm/test/x86/svm.c
index dd4a8da..4a7a662 100644
--- a/kvm/test/x86/svm.c
+++ b/kvm/test/x86/svm.c
@@ -209,6 +209,32 @@ static void test_cr3_intercept_bypass(struct test *test)
test->scratch = a;
}
+static bool next_rip_supported(void)
+{
+ return (cpuid(SVM_CPUID_FUNC).d & 8);
+}
+
+static void prepare_next_rip(struct test *test)
+{
+ test->vmcb->control.intercept |= (1ULL << INTERCEPT_RDTSC);
+}
+
+
+static void test_next_rip(struct test *test)
+{
+ asm volatile ("rdtsc\n\t"
+ ".globl exp_next_rip\n\t"
+ "exp_next_rip:\n\t" ::: "eax", "edx");
+}
+
+static bool check_next_rip(struct test *test)
+{
+ extern char exp_next_rip;
+ unsigned long address = (unsigned long)&exp_next_rip;
+
+ return address == test->vmcb->control.next_rip;
+}
+
static struct test tests[] = {
{ "null", default_supported, default_prepare, null_test,
default_finished, null_check },
@@ -223,6 +249,9 @@ static struct test tests[] = {
{ "cr3 read intercept emulate", default_supported,
prepare_cr3_intercept_bypass, test_cr3_intercept_bypass,
default_finished, check_cr3_intercept },
+ { "next_rip", next_rip_supported, prepare_next_rip, test_next_rip,
+ default_finished, check_next_rip },
+
};
int main(int ac, char **av)
--
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