Re: [Qemu-devel] [PATCH -v2 1/2] Log reset events

[Kevin Wolf <kwolf@suse.de>]

Jan Kiszka schrieb:
> [ Updated to use new log API. ]
> 
> Original idea&code by Kevin Wolf, now split-up in two patches and added
> more archs.
> 
> This patch introduces a flag to log CPU resets. Useful for tracing
> unexpected resets (such as those triggered by x86 triple faults).
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> Acked-by: Kevin Wolf <kwolf@suse.de>
> ---
> 
>  cpu-all.h               |    1 +
>  exec.c                  |    2 ++
>  target-arm/helper.c     |    6 ++++++
>  target-cris/translate.c |    5 +++++
>  target-i386/helper.c    |    5 +++++
>  target-m68k/helper.c    |    5 +++++
>  target-mips/translate.c |    5 +++++
>  target-ppc/helper.c     |    8 ++++++--
>  target-sh4/translate.c  |    5 +++++
>  target-sparc/helper.c   |    5 +++++
>  10 files changed, 45 insertions(+), 2 deletions(-)
> 
> diff --git a/cpu-all.h b/cpu-all.h
> index ee0a6e3..59c686a 100644
> --- a/cpu-all.h
> +++ b/cpu-all.h
> @@ -816,6 +816,7 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
>  #define CPU_LOG_PCALL      (1 << 6)
>  #define CPU_LOG_IOPORT     (1 << 7)
>  #define CPU_LOG_TB_CPU     (1 << 8)
> +#define CPU_LOG_RESET      (1 << 9)
>  
>  /* define log items */
>  typedef struct CPULogItem {
> diff --git a/exec.c b/exec.c
> index faa6333..fa2ebbd 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -1569,6 +1569,8 @@ const CPULogItem cpu_log_items[] = {
>  #ifdef TARGET_I386
>      { CPU_LOG_PCALL, "pcall",
>        "show protected mode far calls/returns/exceptions" },
> +    { CPU_LOG_RESET, "cpu_reset",
> +      "show CPU state before CPU resets" },
>  #endif
>  #ifdef DEBUG_IOPORT
>      { CPU_LOG_IOPORT, "ioport",
> diff --git a/target-arm/helper.c b/target-arm/helper.c
> index 81663c8..a243d9b 100644
> --- a/target-arm/helper.c
> +++ b/target-arm/helper.c
> @@ -159,6 +159,12 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
>  void cpu_reset(CPUARMState *env)
>  {
>      uint32_t id;
> +
> +    if (qemu_loglevel_mask(CPU_LOG_RESET)) {
> +        fprintf(logfile, "CPU Reset (CPU %d)\n", env->cpu_index);
> +        cpu_dump_state(env, logfile, fprintf, 0);

Shouldn't that be qemu_log() and log_cpu_state() now?

Kevin