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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-06-08 19:38:56 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-06-08 19:38:56 +0100 |
| commit | 7d38cb92aad848b9c935588815d0b3a5e157aabb (patch) | |
| tree | 28f12680f927e4e1edc7fa68e7a13abc136bee22 | |
| parent | aa4451b60e6a2b1bc4e9a8f6bbf90b266e2a4390 (diff) | |
| download | qemu-7d38cb92aad848b9c935588815d0b3a5e157aabb.zip qemu-7d38cb92aad848b9c935588815d0b3a5e157aabb.tar.gz qemu-7d38cb92aad848b9c935588815d0b3a5e157aabb.tar.bz2 | |
target/arm: Hoist arm_is_el2_enabled check in sve_exception_el
This check is buried within arm_hcr_el2_eff(), but since we
have to have the explicit check for CPTR_EL2.TZ, we might as
well just check it once at the beginning of the block.
Once this is done, we can test HCR_EL2.{E2H,TGE} directly,
rather than going through arm_hcr_el2_eff().
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220607203306.657998-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | target/arm/helper.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index 40b60b1..61e8026 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -6183,15 +6183,12 @@ int sve_exception_el(CPUARMState *env, int el) } } - /* - * CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). - */ - if (el <= 2) { - uint64_t hcr_el2 = arm_hcr_el2_eff(env); - if (hcr_el2 & HCR_E2H) { + if (el <= 2 && arm_is_el2_enabled(env)) { + /* CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). */ + if (env->cp15.hcr_el2 & HCR_E2H) { switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, ZEN)) { case 1: - if (el != 0 || !(hcr_el2 & HCR_TGE)) { + if (el != 0 || !(env->cp15.hcr_el2 & HCR_TGE)) { break; } /* fall through */ @@ -6199,7 +6196,7 @@ int sve_exception_el(CPUARMState *env, int el) case 2: return 2; } - } else if (arm_is_el2_enabled(env)) { + } else { if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TZ)) { return 2; } |