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Re: [Qemu-devel] [PATCH] target-i386: fix "info lapic" segfault on isapc
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH] target-i386: fix "info lapic" segfault on isapc |
Date: |
Tue, 28 Mar 2017 10:05:23 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 |
On 28/03/2017 09:19, Tejaswini wrote:
> From: Tejaswini Poluri <address@hidden>
>
> Start QEMU with
> "qemu-system-x86_64 -nographic -M isapc -serial none-monitor stdio"
> and enter "info lapic" at the monitor prompt ⇒
> Segmentation fault
>
> Signed-off-by: Tejaswini Poluri <address@hidden>
> ---
> target/i386/helper.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/target/i386/helper.c b/target/i386/helper.c
> index e2af340..f11cac6 100644
> --- a/target/i386/helper.c
> +++ b/target/i386/helper.c
> @@ -326,6 +326,10 @@ void x86_cpu_dump_local_apic_state(CPUState *cs, FILE *f,
> {
> X86CPU *cpu = X86_CPU(cs);
> APICCommonState *s = APIC_COMMON(cpu->apic_state);
> + if (!s) {
> + cpu_fprintf(f, "local apic state not available\n");
> + return;
> + }
> uint32_t *lvt = s->lvt;
>
> cpu_fprintf(f, "dumping local APIC state for CPU %-2u\n\n",
>
Queued, thanks.
Paolo