[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH] helper_syscall x86_64: clear exception_is_int
From: |
Paolo Bonzini |
Subject: |
Re: [PATCH] helper_syscall x86_64: clear exception_is_int |
Date: |
Tue, 22 Sep 2020 14:04:54 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 |
On 22/09/20 06:17, Douglas Crosher wrote:
>
> The exception_is_int flag may be set on entry to helper_syscall,
> e.g. after a prior interrupt that has returned, and processing
> EXCP_SYSCALL as an interrupt causes it to fail so clear this flag.
>
> Signed-off-by: Douglas Crosher <dtc-ubuntu@scieneer.com>
> ---
> target/i386/seg_helper.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/target/i386/seg_helper.c b/target/i386/seg_helper.c
> index b96de068ca..be88938c2a 100644
> --- a/target/i386/seg_helper.c
> +++ b/target/i386/seg_helper.c
> @@ -975,6 +975,7 @@ void helper_syscall(CPUX86State *env, int
> next_eip_addend)
> CPUState *cs = env_cpu(env);
>
> cs->exception_index = EXCP_SYSCALL;
> + env->exception_is_int = 0;
> env->exception_next_eip = env->eip + next_eip_addend;
> cpu_loop_exit(cs);
> }
Queued, thanks.
Paolo