[PATCH v6 3/5] KVM: PPC: selftests: Add helper for checking if running nested
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COOLING6d
REVIEWED: 1 (0M)
From: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Date: 2026-10-05 03:47:58
Also in:
kvm, lkml
Subsystem:
kernel selftest framework, kernel virtual machine (kvm), the rest · Maintainers:
Shuah Khan, Shuah Khan, Paolo Bonzini, Linus Torvalds
Revision v6 of 5 in this series; 1 review trailer.
Revisions (5)
access_tracking_perf_test needs detection if we are running nested guests. This adds the needed helper. Tested-by: Anushree Mathur <redacted> Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> --- tools/testing/selftests/kvm/include/powerpc/processor.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/tools/testing/selftests/kvm/include/powerpc/processor.h b/tools/testing/selftests/kvm/include/powerpc/processor.h
index f0ee21a8e2d4..a46f6828991c 100644
--- a/tools/testing/selftests/kvm/include/powerpc/processor.h
+++ b/tools/testing/selftests/kvm/include/powerpc/processor.h@@ -6,6 +6,8 @@ #define SELFTEST_KVM_PROCESSOR_H #include <linux/compiler.h> +#include <unistd.h> + #include "ppc_asm.h" #include "kvm_util_types.h"
@@ -36,4 +38,9 @@ static inline void cpu_relax(void) asm volatile("" ::: "memory"); } +static inline bool is_pseries_lpar(void) +{ + return !access("/proc/device-tree/rtas/ibm,hypertas-functions", F_OK); +} + #endif
--
2.39.5