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fix WFI/WFE length in syndrome register

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WFI/E are often, but not always, 4 bytes long. When they are, we need to
set ARM_EL_IL_SHIFT in the syndrome register.

Pass the instruction length to HELPER(wfi), use it to decrement pc
appropriately and to pass an is_16bit flag to syn_wfx, which sets
ARM_EL_IL_SHIFT if needed.

Set dc->insn in both arm_tr_translate_insn and thumb_tr_translate_insn.

Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Message-id: alpine.DEB.2.10.1710241055160.574@sstabellini-ThinkPad-X260
[PMM: move setting of dc->insn for Thumb so it is correct for 32 bit insns]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Stefano Stabellini 2017-10-31 11:50:50 +00:00 • committed by Peter Maydell
parent abf6e752e5
commit 58803318e5
6 changed files with 23 additions and 8 deletions
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2
target/arm/psci.c
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@ -189,7 +189,7 @@ void arm_handle_psci_call(ARMCPU *cpu)
} else {
env->regs[0] = 0;
}
helper_wfi(env);
helper_wfi(env, 4);
break;
case QEMU_PSCI_0_1_FN_MIGRATE:
case QEMU_PSCI_0_2_FN_MIGRATE: