From ec6959d0466fb240fe4d94d5f525eebf9ba18b84 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Wed, 13 Apr 2011 01:32:56 +0200 Subject: [PATCH] Redirect cpu_interrupt to callback handler This allows to override the interrupt handling of QEMU in system mode. KVM will make use of it to set a specialized handler. Signed-off-by: Jan Kiszka Signed-off-by: Marcelo Tosatti --- cpu-all.h | 14 +++++++++++++- exec.c | 4 +++- 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/cpu-all.h b/cpu-all.h index 0bae6df8ec..88126ea651 100644 --- a/cpu-all.h +++ b/cpu-all.h @@ -799,7 +799,19 @@ extern CPUState *cpu_single_env; #define CPU_INTERRUPT_SIPI 0x800 /* SIPI pending. */ #define CPU_INTERRUPT_MCE 0x1000 /* (x86 only) MCE pending. */ -void cpu_interrupt(CPUState *s, int mask); +#ifndef CONFIG_USER_ONLY +typedef void (*CPUInterruptHandler)(CPUState *, int); + +extern CPUInterruptHandler cpu_interrupt_handler; + +static inline void cpu_interrupt(CPUState *s, int mask) +{ + cpu_interrupt_handler(s, mask); +} +#else /* USER_ONLY */ +void cpu_interrupt(CPUState *env, int mask); +#endif /* USER_ONLY */ + void cpu_reset_interrupt(CPUState *env, int mask); void cpu_exit(CPUState *s); diff --git a/exec.c b/exec.c index d6d8a89110..a718d747e7 100644 --- a/exec.c +++ b/exec.c @@ -1631,7 +1631,7 @@ static void cpu_unlink_tb(CPUState *env) #ifndef CONFIG_USER_ONLY /* mask must never be zero, except for A20 change call */ -void cpu_interrupt(CPUState *env, int mask) +static void tcg_handle_interrupt(CPUState *env, int mask) { int old_mask; @@ -1658,6 +1658,8 @@ void cpu_interrupt(CPUState *env, int mask) } } +CPUInterruptHandler cpu_interrupt_handler = tcg_handle_interrupt; + #else /* CONFIG_USER_ONLY */ void cpu_interrupt(CPUState *env, int mask)