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target-arm: A64: Introduce aarch64_banked_spsr_index()

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Add aarch64_banked_spsr_index(), used to map an Exception Level
to an index in the banked_spsr array.

Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1400980132-25949-13-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Edgar E. Iglesias 2014-05-27 17:09:52 +01:00 • committed by Peter Maydell
parent 28c9457df0
commit 2a923c4dde
3 changed files with 17 additions and 2 deletions
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2
target-arm/helper-a64.c
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@ -488,7 +488,7 @@ void aarch64_cpu_do_interrupt(CPUState *cs)
}
if (is_a64(env)) {
env->banked_spsr[0] = pstate_read(env);
env->banked_spsr[aarch64_banked_spsr_index(1)] = pstate_read(env);
env->sp_el[arm_current_pl(env)] = env->xregs[31];
env->xregs[31] = env->sp_el[1];
env->elr_el[1] = env->pc;