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[v2,17/24] target/arm: Enable FEAT_IESB for -cpu max

Message ID 20220412003326.588530-18-richard.henderson@linaro.org
State Superseded
Headers show
Series target/arm: 8 new features, A76 and N1 | expand

Commit Message

Richard Henderson April 12, 2022, 12:33 a.m. UTC 
This feature is AArch64 only, and applies to physical SErrors,
which QEMU does not implement, thus the feature is a nop.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Update emulation.rst
---
 docs/system/arm/emulation.rst | 1 +
 target/arm/cpu64.c            | 1 +
 2 files changed, 2 insertions(+)
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Patch

diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
index 35b6f7d4de..ebd9e418cc 100644
--- a/docs/system/arm/emulation.rst
+++ b/docs/system/arm/emulation.rst
@@ -24,6 +24,7 @@  the following architecture extensions:
 - FEAT_FlagM2 (Enhancements to flag manipulation instructions)
 - FEAT_HPDS (Hierarchical permission disables)
 - FEAT_I8MM (AArch64 Int8 matrix multiplication instructions)
+- FEAT_IESB (Implicit error synchronization event)
 - FEAT_JSCVT (JavaScript conversion instructions)
 - FEAT_LOR (Limited ordering regions)
 - FEAT_LPA (Large Physical Address space)
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 3525aba610..c91528a12e 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -781,6 +781,7 @@  static void aarch64_max_initfn(Object *obj)
     t = cpu->isar.id_aa64mmfr2;
     t = FIELD_DP64(t, ID_AA64MMFR2, CNP, 1);      /* FEAT_TTCNP */
     t = FIELD_DP64(t, ID_AA64MMFR2, UAO, 1);      /* FEAT_UAO */
+    t = FIELD_DP64(t, ID_AA64MMFR2, IESB, 1);     /* FEAT_IESB */
     t = FIELD_DP64(t, ID_AA64MMFR2, VARANGE, 1);  /* FEAT_LVA */
     t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1);       /* FEAT_TTST */
     cpu->isar.id_aa64mmfr2 = t;