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authorRichard Henderson <richard.henderson@linaro.org>2018-12-13 13:48:08 +0000
committerPeter Maydell <peter.maydell@linaro.org>2018-12-13 14:41:24 +0000
commit2d7137c10fafefe40a0a049ff8a7bd78b66e661f (patch)
tree1216da5c2346d877845d09b934831eebab22ff38 /target/arm/cpu.h
parent7c208e0f4171c9e2cc35efc12e1bf264a45c229f (diff)
downloadfocaccia-qemu-2d7137c10fafefe40a0a049ff8a7bd78b66e661f.tar.gz
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target/arm: Implement the ARMv8.1-LOR extension
Provide a trivial implementation with zero limited ordering regions,
which causes the LDLAR and STLLR instructions to devolve into the
LDAR and STLR instructions from the base ARMv8.0 instruction set.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181210150501.7990-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/cpu.h')
-rw-r--r--target/arm/cpu.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 05ac883b6b..c943f35dd9 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -3340,6 +3340,11 @@ static inline bool isar_feature_aa64_sve(const ARMISARegisters *id)
     return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, SVE) != 0;
 }
 
+static inline bool isar_feature_aa64_lor(const ARMISARegisters *id)
+{
+    return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, LO) != 0;
+}
+
 /*
  * Forward to the above feature tests given an ARMCPU pointer.
  */