diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2024-07-22 18:29:57 +0100 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2024-08-28 08:37:28 +0300 |
| commit | e5f76d5291285096cc408e973d2e0bf61f27b0b2 (patch) | |
| tree | 82af5183ba00604d3e51387547efc904e6467077 /target/arm/helper.c | |
| parent | 540a70d2c462feb16221c1cea3cdf18db552e64e (diff) | |
target/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled
When determining the current vector length, the SMCR_EL2.LEN and
SVCR_EL2.LEN settings should only be considered if EL2 is enabled
(compare the pseudocode CurrentSVL and CurrentNSVL which call
EL2Enabled()).
We were checking against ARM_FEATURE_EL2 rather than calling
arm_is_el2_enabled(), which meant that we would look at
SMCR_EL2/SVCR_EL2 when in Secure EL1 or Secure EL0 even if Secure EL2
was not enabled.
Use the correct check in sve_vqm1_for_el_sm().
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-5-peter.maydell@linaro.org
(cherry picked from commit f573ac059ed060234fcef4299fae9e500d357c33)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'target/arm/helper.c')
| -rw-r--r-- | target/arm/helper.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index a620481d7c..42044ae14b 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -7191,7 +7191,7 @@ uint32_t sve_vqm1_for_el_sm(CPUARMState *env, int el, bool sm) if (el <= 1 && !el_is_in_host(env, el)) { len = MIN(len, 0xf & (uint32_t)cr[1]); } - if (el <= 2 && arm_feature(env, ARM_FEATURE_EL2)) { + if (el <= 2 && arm_is_el2_enabled(env)) { len = MIN(len, 0xf & (uint32_t)cr[2]); } if (arm_feature(env, ARM_FEATURE_EL3)) { |