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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2020-09-01 22:45:17 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-09-01 22:47:02 +1000 |
| commit | fc1f178cdb31783ff37296ecae817a1045a1a513 (patch) | |
| tree | cdfdcd3bf7bcfbb760594607a382151d271a916d /tools/testing/selftests/powerpc/mm/prot_sao.c | |
| parent | powerpc/book3s64/radix: Fix boot failure with large amount of guest memory (diff) | |
| download | wireguard-linux-fc1f178cdb31783ff37296ecae817a1045a1a513.tar.xz wireguard-linux-fc1f178cdb31783ff37296ecae817a1045a1a513.zip | |
selftests/powerpc: Skip PROT_SAO test in guests/LPARS
In commit 9b725a90a8f1 ("powerpc/64s: Disallow PROT_SAO in LPARs by
default") PROT_SAO was disabled in guests/LPARs by default. So skip
the test if we are running in a guest to avoid a spurious failure.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200901124653.523182-1-mpe@ellerman.id.au
Diffstat (limited to '')
| -rw-r--r-- | tools/testing/selftests/powerpc/mm/prot_sao.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/testing/selftests/powerpc/mm/prot_sao.c b/tools/testing/selftests/powerpc/mm/prot_sao.c index e0cf8ebbf8cd..30b71b1d78d5 100644 --- a/tools/testing/selftests/powerpc/mm/prot_sao.c +++ b/tools/testing/selftests/powerpc/mm/prot_sao.c @@ -7,6 +7,7 @@ #include <stdlib.h> #include <string.h> #include <sys/mman.h> +#include <unistd.h> #include <asm/cputable.h> @@ -18,9 +19,13 @@ int test_prot_sao(void) { char *p; - /* SAO was introduced in 2.06 and removed in 3.1 */ + /* + * SAO was introduced in 2.06 and removed in 3.1. It's disabled in + * guests/LPARs by default, so also skip if we are running in a guest. + */ SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06) || - have_hwcap2(PPC_FEATURE2_ARCH_3_1)); + have_hwcap2(PPC_FEATURE2_ARCH_3_1) || + access("/proc/device-tree/rtas/ibm,hypertas-functions", F_OK) == 0); /* * Ensure we can ask for PROT_SAO. |