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From: Paolo Bonzini <pbonzini@redhat.com>
To: Li Qiang <liq3ea@163.com>, peterx@redhat.com, mst@redhat.com
Cc: liq3ea@gmail.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] ioapic: clear irq_eoi when updating the ioapic redirect table entry
Date: Tue, 25 Jun 2019 10:01:20 +0200	[thread overview]
Message-ID: <be98a9c4-3a49-00e9-b67c-e362f234208e@redhat.com> (raw)
In-Reply-To: <20190624151635.22494-1-liq3ea@163.com>

On 24/06/19 17:16, Li Qiang wrote:
> irq_eoi is used to count the number of irq injected during eoi
> broadcast. It should be set to 0 when updating the ioapic's redirect
> table entry.
> 
> Suggested-by: Peter Xu <peterx@redhat.com>
> Signed-off-by: Li Qiang <liq3ea@163.com>
> ---
>  hw/intc/ioapic.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/intc/ioapic.c b/hw/intc/ioapic.c
> index 7074489fdf..db9e518602 100644
> --- a/hw/intc/ioapic.c
> +++ b/hw/intc/ioapic.c
> @@ -380,6 +380,7 @@ ioapic_mem_write(void *opaque, hwaddr addr, uint64_t val,
>                  /* restore RO bits */
>                  s->ioredtbl[index] &= IOAPIC_RW_BITS;
>                  s->ioredtbl[index] |= ro_bits;
> +                s->irq_eoi[index] = 0;
>                  ioapic_fix_edge_remote_irr(&s->ioredtbl[index]);
>                  ioapic_service(s);
>              }
> 

Queued, thanks.

Paolo


      parent reply	other threads:[~2019-06-25  8:02 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-24 15:16 [Qemu-devel] [PATCH] ioapic: clear irq_eoi when updating the ioapic redirect table entry Li Qiang
2019-06-25  2:29 ` Peter Xu
2019-06-25  8:01 ` Paolo Bonzini [this message]

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