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Re: [Qemu-devel] [PATCH 05/11] acpi: ich9: allow guest to clear SCI rise


From: Michael S. Tsirkin
Subject: Re: [Qemu-devel] [PATCH 05/11] acpi: ich9: allow guest to clear SCI rised by GPE
Date: Thu, 19 Dec 2013 16:16:58 +0200

On Fri, Dec 13, 2013 at 05:22:10PM +0100, Igor Mammedov wrote:
> it fixes IRQ storm since guest isn't able to lower SCI IRQ
> after it has been handled when it clears GPE event.
> 
> Signed-off-by: Igor Mammedov <address@hidden>

Applied, thanks.

> ---
>  hw/acpi/ich9.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
> index dcdef7c..30f0df8 100644
> --- a/hw/acpi/ich9.c
> +++ b/hw/acpi/ich9.c
> @@ -61,6 +61,7 @@ static void ich9_gpe_writeb(void *opaque, hwaddr addr, 
> uint64_t val,
>  {
>      ICH9LPCPMRegs *pm = opaque;
>      acpi_gpe_ioport_writeb(&pm->acpi_regs, addr, val);
> +    acpi_update_sci(&pm->acpi_regs, pm->irq);
>  }
>  
>  static const MemoryRegionOps ich9_gpe_ops = {
> -- 
> 1.8.3.1



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