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authorRichard Henderson <richard.henderson@linaro.org>2020-02-08 12:58:06 +0000
committerPeter Maydell <peter.maydell@linaro.org>2020-02-13 14:14:54 +0000
commit140845111809cd6fd57ccde93867b48cc56ffc74 (patch)
tree2cc8b81184dfc9a861ffb6dd02f93b3f8c87c111 /target/arm/helper-a64.c
parent70dae0d069c45250bbefd9424089383a8ac239de (diff)
target/arm: Introduce aarch64_pstate_valid_mask
Use this along the exception return path, where we previously accepted any values. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-11-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/helper-a64.c')
-rw-r--r--target/arm/helper-a64.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
index 0c9feba392..509ae93069 100644
--- a/target/arm/helper-a64.c
+++ b/target/arm/helper-a64.c
@@ -1032,6 +1032,7 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
cur_el, new_el, env->regs[15]);
} else {
env->aarch64 = 1;
+ spsr &= aarch64_pstate_valid_mask(&env_archcpu(env)->isar);
pstate_write(env, spsr);
if (!arm_singlestep_active(env)) {
env->pstate &= ~PSTATE_SS;