@@ -559,6 +559,28 @@ static bool npt_rw_check(struct test *test)
&& (test->vmcb->control.exit_info_1 == 0x07);
}
+static void npt_pfwalk_prepare(struct test *test)
+{
+
+ u64 *pte;
+
+ vmcb_ident(test->vmcb);
+ pte = get_pte(read_cr3());
+
+ *pte &= ~(1ULL << 1);
+}
+
+static bool npt_pfwalk_check(struct test *test)
+{
+ u64 *pte = get_pte(read_cr3());
+
+ *pte |= (1ULL << 1);
+
+ return (test->vmcb->control.exit_code == SVM_EXIT_NPF)
+ && (test->vmcb->control.exit_info_1 == 0x7)
+ && (test->vmcb->control.exit_info_2 == read_cr3());
+}
+
static struct test tests[] = {
{ "null", default_supported, default_prepare, null_test,
default_finished, null_check },
@@ -589,6 +611,8 @@ static struct test tests[] = {
default_finished, npt_rsvd_check },
{ "npt_rw", npt_supported, npt_rw_prepare, npt_rw_test,
default_finished, npt_rw_check },
+ { "npt_pfwalk", npt_supported, npt_pfwalk_prepare, null_test,
+ default_finished, npt_pfwalk_check },
};
int main(int ac, char **av)