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target-microblaze: Respect MSR.PVR as read-only

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Respect MSR.PVR as read-only. We were wrongly overwriting the PVR bit.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This commit is contained in:
Edgar E. Iglesias 2018-04-14 18:06:34 +02:00
parent 6f0c4706b3
commit 59b1a90b0b
1 changed files with 1 additions and 1 deletions
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target/microblaze/translate.c
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@ -424,7 +424,7 @@ static inline void msr_write(DisasContext *dc, TCGv v)
/* PVR bit is not writable. */
tcg_gen_andi_tl(t, v, ~MSR_PVR);
tcg_gen_andi_tl(cpu_SR[SR_MSR], cpu_SR[SR_MSR], MSR_PVR);
tcg_gen_or_tl(cpu_SR[SR_MSR], cpu_SR[SR_MSR], v);
tcg_gen_or_tl(cpu_SR[SR_MSR], cpu_SR[SR_MSR], t);
tcg_temp_free(t);
}