motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-05 16:53:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/arm: Fix aarch64_sve_change_el wrt EL0

Browse source 
At present we assert:

  arm_el_is_aa64: Assertion `el >= 1 && el <= 3' failed.

The comment in arm_el_is_aa64 explains why asking about EL0 without
extra information is impossible.  Add an extra argument to provide
it from the surrounding context.

Fixes: 0ab5953b00
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181008212205.17752-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2018-10-08 14:21:56 -07:00 • committed by Peter Maydell
parent fb23d693a3
commit 9a05f7b674
3 changed files with 22 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

6
target/arm/op_helper.c
View file

@ -1101,7 +1101,11 @@ void HELPER(exception_return)(CPUARMState *env)
"AArch64 EL%d PC 0x%" PRIx64 "\n",
cur_el, new_el, env->pc);
}
aarch64_sve_change_el(env, cur_el, new_el);
/*
* Note that cur_el can never be 0. If new_el is 0, then
* el0_a64 is return_to_aa64, else el0_a64 is ignored.
*/
aarch64_sve_change_el(env, cur_el, new_el, return_to_aa64);
qemu_mutex_lock_iothread();
arm_call_el_change_hook(arm_env_get_cpu(env));