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[Qemu-devel] [PATCH] i386 hard interrupt generation bug fix
From: |
TeLeMan |
Subject: |
[Qemu-devel] [PATCH] i386 hard interrupt generation bug fix |
Date: |
Thu, 17 Jan 2008 07:17:29 -0800 (PST) |
in cpu-exe.c:
intno=cpu_get_pic_interrupt(env);
intno may be -1, we have to skip this error code.
http://www.nabble.com/file/p14921171/hard_int.patch hard_int.patch:
--- qemu.orig/cpu-exec.c Mon Jan 14 11:11:02 2008
+++ qemu/cpu-exec.c Thu Jan 17 23:03:00 2008
@@ -449,16 +449,18 @@ int cpu_exec(CPUState *env1)
(env->eflags & IF_MASK || env->hflags &
HF_HIF_MASK) &&
!(env->hflags & HF_INHIBIT_IRQ_MASK)) {
int intno;
- svm_check_intercept(SVM_EXIT_INTR);
env->interrupt_request &= ~(CPU_INTERRUPT_HARD |
CPU_INTERRUPT_VIRQ);
intno = cpu_get_pic_interrupt(env);
- if (loglevel & CPU_LOG_TB_IN_ASM) {
- fprintf(logfile, "Servicing hardware
INT=0x%02x\n", intno);
- }
- do_interrupt(intno, 0, 0, 0, 1);
- /* ensure that no TB jump will be modified as
- the program flow was changed */
- BREAK_CHAIN;
+ if(intno>=0) {
+ svm_check_intercept(SVM_EXIT_INTR);
+ if (loglevel & CPU_LOG_TB_IN_ASM) {
+ fprintf(logfile, "Servicing hardware
INT=0x%02x\n", intno);
+ }
+ do_interrupt(intno, 0, 0, 0, 1);
+ /* ensure that no TB jump will be modified as
+ the program flow was changed */
+ BREAK_CHAIN;
+ }
#if !defined(CONFIG_USER_ONLY)
} else if ((interrupt_request & CPU_INTERRUPT_VIRQ) &&
(env->eflags & IF_MASK) && !(env->hflags &
HF_INHIBIT_IRQ_MASK)) {
--
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