Re: [PATCH 2/2] xen/x86: detect support for extended destination ID

Mon, 07 Feb 2022 01:03:57 -0800 

On 20.01.22 16:25, Roger Pau Monne wrote:

Xen allows the usage of some previously reserved bits in the IO-APIC
RTE and the MSI address fields in order to store high bits for the
target APIC ID. Such feature is already implemented by QEMU/KVM and
HyperV, so in order to enable it just add the handler that checks for
it's presence.

Signed-off-by: Roger Pau Monné <[email protected]>


Reviewed-by: Juergen Gross <[email protected]>


Juergen

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