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[xen 6/6] user_data: add hypercall sub calls — Semantic Matching Tool

[xen 6/6] user_data: add hypercall sub calls

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Previously, we matched do_..._op, but there exist sub calls
of a different structure. Therefore, add some of them here as

Signed-off-by: Norbert Manthey <nmanthey@xxxxxxxxx>
 check_user_data2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/check_user_data2.c b/check_user_data2.c
index d95ba1d..a04deb2 100644
--- a/check_user_data2.c
+++ b/check_user_data2.c
@@ -1238,6 +1238,9 @@ void check_user_data2(int id)
 	for (i = 0; i < ARRAY_SIZE(xen_from_guest_funcs); i++)
 		add_function_hook(xen_from_guest_funcs[i], &match_user_copy, INT_PTR(0));
+	// some extra functions where we know tainted data is passed
+	add_function_hook("hvm_vcpu_op", &match_user_copy, INT_PTR(1));
         // the Xen equivalent to kvm_register_read
 	add_function_assign_hook("acpi_hw_register_read", &match_user_copy, NULL);

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