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authorBen Horgan <ben.horgan@arm.com>2025-11-25 10:12:06 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2025-11-27 18:16:46 +0000
commitbf09ee918053edec7efeb2f9977b53b02e029553 (patch)
tree45e8115291f7bb4f7677730b40298c5304e24bde /tools/arch
parenta04fbfb8a175d4904727048b97fcdef12e392ed1 (diff)
KVM: arm64: selftests: Remove ARM64_FEATURE_FIELD_BITS and its last user
ARM64_FEATURE_FIELD_BITS is set to 4 but not all ID register fields are 4 bits. See for instance ID_AA64SMFR0_EL1. The last user of this define, ARM64_FEATURE_FIELD_BITS, is the set_id_regs selftest. Its logic assumes the fields aren't a single bits; assert that's the case and stop using the define. As there are no more users, ARM64_FEATURE_FIELD_BITS is removed from the arm64 tools sysreg.h header. A separate commit removes this from the kernel version of the header. Signed-off-by: Ben Horgan <ben.horgan@arm.com> Acked-by: Marc Zyngier <maz@kernel.org> Acked-by: Oliver Upton <oupton@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/arch')
-rw-r--r--tools/arch/arm64/include/asm/sysreg.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/tools/arch/arm64/include/asm/sysreg.h b/tools/arch/arm64/include/asm/sysreg.h
index 65f2759ea27a..0f60b68eac1b 100644
--- a/tools/arch/arm64/include/asm/sysreg.h
+++ b/tools/arch/arm64/include/asm/sysreg.h
@@ -1078,8 +1078,6 @@
#define GCS_CAP(x) ((((unsigned long)x) & GCS_CAP_ADDR_MASK) | \
GCS_CAP_VALID_TOKEN)
-#define ARM64_FEATURE_FIELD_BITS 4
-
#ifdef __ASSEMBLY__
.macro mrs_s, rt, sreg