Hi Jim,
On 12/2/25 09:00, Jim MacArthur wrote:
docs/system/arm/emulation.rst: Add ASID2
Signed-off-by: Jim MacArthur <[email protected]>
---
docs/system/arm/emulation.rst | 1 +
target/arm/tcg/cpu64.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
index 31a5878a8f..3f30ea5a30 100644
--- a/docs/system/arm/emulation.rst
+++ b/docs/system/arm/emulation.rst
@@ -24,6 +24,7 @@ the following architecture extensions:
- FEAT_AIE (Memory Attribute Index Enhancement)
- FEAT_Armv9_Crypto (Armv9 Cryptographic Extension)
- FEAT_ASID16 (16 bit ASID)
+- FEAT_ASID2 (Concurrent use of two ASIDs)
- FEAT_ATS1A (Address Translation operations that ignore stage 1 permissions)
- FEAT_BBM at level 2 (Translation table break-before-make levels)
- FEAT_BF16 (AArch64 BFloat16 instructions)
diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c
index 6871956382..ef4c0c8d73 100644
--- a/target/arm/tcg/cpu64.c
+++ b/target/arm/tcg/cpu64.c
@@ -1334,6 +1334,10 @@ void aarch64_max_tcg_initfn(Object *obj)
t = FIELD_DP64(t, ID_AA64MMFR3, AIE, 1); /* FEAT_AIE */
SET_IDREG(isar, ID_AA64MMFR3, t);
+ t = GET_IDREG(isar, ID_AA64MMFR4);
+ t = FIELD_DP64(t, ID_AA64MMFR4, ASID2, 1); /* FEAT_ASID2 */
+ SET_IDREG(isar, ID_AA64MMFR4, t);
+
t = GET_IDREG(isar, ID_AA64ZFR0);
t = FIELD_DP64(t, ID_AA64ZFR0, SVEVER, 2); /* FEAT_SVE2p1 */
t = FIELD_DP64(t, ID_AA64ZFR0, AES, 2); /* FEAT_SVE_PMULL128 */
Reviewed-by: Gustavo Romero <[email protected]>
