selftests/powerpc: Skip PROT_SAO test in guests/LPARS (fc1f178c) · Commits · 戴 / test

In commit ("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

tools/testing/selftests/powerpc/mm/prot_sao.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -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.

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