Re: [Xen-devel] [PATCH v3 09/10] IOMMU: propagate IOMMU Device-TLB flush error up to IOMMU suspending

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Xu, Quan
> Sent: Friday, April 29, 2016 5:25 PM
> diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c
> index 2885e31..9097333 100644
> --- a/xen/arch/x86/acpi/power.c
> +++ b/xen/arch/x86/acpi/power.c
> @@ -45,6 +45,8 @@ void do_suspend_lowlevel(void);
> 
>  static int device_power_down(void)
>  {
> +    int err;
> +
>      console_suspend();
> 
>      time_suspend();
> @@ -53,11 +55,22 @@ static int device_power_down(void)
> 
>      ioapic_suspend();
> 
> -    iommu_suspend();
> +    err = iommu_suspend();
> +
> +    if ( err )
> +        goto iommu_suspend_error;
> 
>      lapic_suspend();
> 
>      return 0;
> +
> + iommu_suspend_error:
> +    ioapic_resume();
> +    i8259A_resume();
> +    time_resume();
> +    console_resume();
> +
> +    return err;
>  }

Jan had comment to better reuse device_power_up... looks no change in this 
version.


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel