motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-09 18:44:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

hw/xen: Add xen_evtchn device for event channel emulation

Browse source 
Include basic support for setting HVM_PARAM_CALLBACK_IRQ to the global
vector method HVM_PARAM_CALLBACK_TYPE_VECTOR, which is handled in-kernel
by raising the vector whenever the vCPU's vcpu_info->evtchn_upcall_pending
flag is set.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
David Woodhouse 2022-12-16 14:02:29 +00:00
parent 5dbcd01a8d
commit 91cce75617
5 changed files with 194 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

18
hw/i386/kvm/xen_evtchn.h Normal file
View file

@ -0,0 +1,18 @@
/*
* QEMU Xen emulation: Event channel support
*
* Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Authors: David Woodhouse <dwmw2@infradead.org>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef QEMU_XEN_EVTCHN_H
#define QEMU_XEN_EVTCHN_H
void xen_evtchn_create(void);
int xen_evtchn_set_callback_param(uint64_t param);
#endif /* QEMU_XEN_EVTCHN_H */