When running test-runner on Ubuntu 24.04 with mainline kernel compiled
from Ubuntu default configuration with applied tester.config options,
the QEMU is not able to start the test-runner application due to illegal
instruction. Passing '-cpu host' fixes that issue.
> $ tools/test-runner -k linux/arch/x86/boot/bzImage -- tools/mgmt-tester
> Using QEMU binary /usr/bin/qemu-system-x86_64
> Using kernel image [...]/linux/arch/x86/boot/bzImage
> Found support for Virtual Machine eXtensions
> [...]
> [ 0.000000] Linux version 6.14.0-rc2+ (gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0 [...]
> [...]
> Running command tools/mgmt-tester
> New process 74 created
> Illegal instruction
> Process 74 exited with status 132
> [ 0.881239] reboot: Restarting system
> [ 0.881431] reboot: machine restart
Potential caveat:
In case when the KVM is not available on the host, the QEMU will not
start with the warning:
CPU model 'host' requires KVM or HVF
---
tools/test-runner.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/test-runner.c b/tools/test-runner.c
index 1fc95d33f..48e114174 100644
--- a/tools/test-runner.c
+++ b/tools/test-runner.c
@@ -211,6 +211,7 @@ static char *const qemu_argv[] = {
"-monitor", "none",
"-display", "none",
"-machine", "type=q35,accel=kvm:tcg",
+ "-cpu", "host",
"-m", "256M",
"-net", "none",
"-no-reboot",
--
2.43.0
