Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
---
tools/testing/selftests/kvm/dirty_log_test.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
index aeff95a91b15..475e0f735f27 100644
--- a/tools/testing/selftests/kvm/dirty_log_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_test.c
@@ -255,6 +255,15 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations,
DEBUG("Testing guest mode: %s\n", vm_guest_mode_string(mode));
+#ifdef __x86_64__
+ /*
+ * FIXME
+ * The x86_64 kvm selftests framework currently only supports a
+ * single PML4 which restricts the number of physical address
+ * bits we can change to 39.
+ */
+ guest_pa_bits = 39;
+#endif
max_gfn = (1ul << (guest_pa_bits - guest_page_shift)) - 1;
guest_page_size = (1ul << guest_page_shift);
/* 1G of guest page sized pages */
--
2.17.2
