From: Helge Deller <deller@gmx.de>
Date: Fri, 10 Nov 2023 00:11:24 +0000 (+0100)
Subject: target/hppa: Fix calculation of CR_IIASQ back register
X-Git-Tag: v8.2.0-rc0~5^2~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e722e5a11212f3080456dea1c3cc5b231d1d3a2d;p=thirdparty%2Fqemu.git

target/hppa: Fix calculation of CR_IIASQ back register

Need to use iasq_b and iaoq_b to determine back register of CR_IIASQ.
This fixes random faults when booting up Linux user space.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---

diff --git a/target/hppa/int_helper.c b/target/hppa/int_helper.c
index 467ee7daf5c..98e9d688f64 100644
--- a/target/hppa/int_helper.c
+++ b/target/hppa/int_helper.c
@@ -126,7 +126,7 @@ void hppa_cpu_do_interrupt(CPUState *cs)
         env->cr[CR_IIASQ] =
             hppa_form_gva_psw(old_psw, env->iasq_f, env->iaoq_f) >> 32;
         env->cr_back[0] =
-            hppa_form_gva_psw(old_psw, env->iasq_f, env->iaoq_f) >> 32;
+            hppa_form_gva_psw(old_psw, env->iasq_b, env->iaoq_b) >> 32;
     } else {
         env->cr[CR_IIASQ] = 0;
         env->cr_back[0] = 0;