Explicitly force host-phys-bits for the access tests that intends to run
with the host's MAXPHYADDR, as QEMU only forces host-phys-bits for "max"
CPUs as of version 6.0 (see commit 5a140b255d ("x86/cpu: Use max host
physical address if -cpu max option is applied")).
Running the access test with an older QEMU, e.g. 5.3, on a CPU with
MAXPHYADDR=52 and allow_smaller_maxphyaddr=N (i.e. with TDP enabled)
fails miserably as the test isn't aware that bit 51 is a legal physical
address bit.
Amusingly, the KVM-Unit-Test appears to pre-date the QEMU change by a few
months, which suggests that the KVM-Unit-Test change was made without
proper testing, and the QEMU change was made to fix the problem.
Fixes: 11cec501 ("x86: cover emulation of reduced MAXPHYADDR")
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
x86/unittests.cfg | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/x86/unittests.cfg b/x86/unittests.cfg
index 7c1691a9..6a60bd11 100644
--- a/x86/unittests.cfg
+++ b/x86/unittests.cfg
@@ -126,12 +126,12 @@ groups = vmexit
[access]
file = access_test.flat
arch = x86_64
-extra_params = -cpu max
+extra_params = -cpu max,host-phys-bits
[access_fep]
file = access_test.flat
arch = x86_64
-extra_params = -cpu max -append force_emulation
+extra_params = -cpu max,host-phys-bits -append force_emulation
groups = nodefault
timeout = 240
base-commit: 6b801c8981f74d75419d77e031dd37f5ad356efe
--
2.46.0.295.g3b9ea8a38a-goog
