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authorLara Lazier <laramglazier@gmail.com>2021-08-13 11:45:52 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2021-09-13 13:56:26 +0200
commit7760bb069f11fb4259c76c05c69a0d254b5d8a10 (patch)
treec5232bcd6897af055c29b4815b00d00f210e61a1 /target/i386/tcg/sysemu/misc_helper.c
parent66a0201ba7a3143689014eb711a5942babca2585 (diff)
target/i386: Added changed priority check for VIRQ
Writes to cr8 affect v_tpr. This could set or unset an interrupt request as the priority might have changed. Signed-off-by: Lara Lazier <laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/tcg/sysemu/misc_helper.c')
-rw-r--r--target/i386/tcg/sysemu/misc_helper.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/target/i386/tcg/sysemu/misc_helper.c b/target/i386/tcg/sysemu/misc_helper.c
index 91b0fc916b..9ccaa054c4 100644
--- a/target/i386/tcg/sysemu/misc_helper.c
+++ b/target/i386/tcg/sysemu/misc_helper.c
@@ -122,6 +122,13 @@ void helper_write_crN(CPUX86State *env, int reg, target_ulong t0)
qemu_mutex_unlock_iothread();
}
env->int_ctl = (env->int_ctl & ~V_TPR_MASK) | (t0 & V_TPR_MASK);
+
+ CPUState *cs = env_cpu(env);
+ if (ctl_has_irq(env)) {
+ cpu_interrupt(cs, CPU_INTERRUPT_VIRQ);
+ } else {
+ cpu_reset_interrupt(cs, CPU_INTERRUPT_VIRQ);
+ }
break;
default:
env->cr[reg] = t0;