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Jane Malalane b1c3497e60 x86/xen: Add support for HVMOP_set_evtchn_upcall_vector 
Implement support for the HVMOP_set_evtchn_upcall_vector hypercall in
order to set the per-vCPU event channel vector callback on Linux and
use it in preference of HVM_PARAM_CALLBACK_IRQ.

If the per-VCPU vector setup is successful on BSP, use this method
for the APs. If not, fallback to the global vector-type callback.

Also register callback_irq at per-vCPU event channel setup to trick
toolstack to think the domain is enlightened.

Suggested-by: "Roger Pau Monné" <roger.pau@citrix.com>
Signed-off-by: Jane Malalane <jane.malalane@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220729070416.23306-1-jane.malalane@citrix.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2022-08-12 11:28:21 +02:00
..
arm arm/xen: Assign xen-grant DMA ops for xen-grant DMA devices 2022-06-06 16:07:30 +02:00
interface x86/xen: Add support for HVMOP_set_evtchn_upcall_vector 2022-08-12 11:28:21 +02:00
acpi.h xen: Remove support for PV ACPI cpu/memory hotplug 2021-04-23 09:31:50 +02:00
balloon.h xen/balloon: Bring alloc(free)_xenballooned_pages helpers back 2022-01-06 09:53:35 +01:00
events.h xen/console: harden hvc_xen against event channel storms 2021-12-16 08:24:08 +01:00
features.h
grant_table.h xen/grants: support allocating consecutive grants 2022-06-06 08:54:35 +02:00
hvc-console.h
hvm.h x86/xen: Add support for HVMOP_set_evtchn_upcall_vector 2022-08-12 11:28:21 +02:00
mem-reservation.h xen/balloon: add runtime control for scrubbing ballooned out pages 2018-09-14 08:51:10 -04:00
page.h swiotlb-xen: remove XEN_PFN_PHYS 2020-08-04 07:50:43 +02:00
pci.h xen-pciback: allow compiling on other archs than x86 2021-11-02 08:03:43 -05:00
platform_pci.h
swiotlb-xen.h swiotlb-xen: fix DMA_ATTR_NO_KERNEL_MAPPING on arm 2022-05-11 19:48:32 +02:00
xen-front-pgdir-shbuf.h xen: Introduce shared buffer helpers for page directory... 2018-12-18 12:15:55 -05:00
xen-ops.h xen: don't require virtio with grants for non-PV guests 2022-08-01 07:43:03 +02:00
xen.h xen: don't require virtio with grants for non-PV guests 2022-08-01 07:43:03 +02:00
xenbus.h xen/xenbus: eliminate xenbus_grant_ring() 2022-05-19 14:22:11 +02:00
xenbus_dev.h xen: xenbus_dev.h: delete incorrect file name 2022-02-03 08:16:32 +01:00