On 29.11.2019 12:28, Roger Pau Monne wrote:
> --- a/xen/arch/x86/apic.c
> +++ b/xen/arch/x86/apic.c
> @@ -492,7 +492,8 @@ static void __enable_x2apic(void)
>
> static void resume_x2apic(void)
> {
> - iommu_enable_x2apic();
> + if ( iommu_supports_x2apic() )
> + iommu_enable_x2apic();
The hooks called by this function are __init, and at least the AMD
one also isn't (I think) prepared to be called more than once.
Jan
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