mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 09:14:19 +08:00
b1c3497e60
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>
28 lines
537 B
C
28 lines
537 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/types.h>
|
|
|
|
#include <xen/xen.h>
|
|
#include <xen/hvm.h>
|
|
#include <xen/features.h>
|
|
#include <xen/interface/features.h>
|
|
#include <xen/events.h>
|
|
|
|
#include "xen-ops.h"
|
|
|
|
void xen_hvm_post_suspend(int suspend_cancelled)
|
|
{
|
|
if (!suspend_cancelled) {
|
|
xen_hvm_init_shared_info();
|
|
xen_vcpu_restore();
|
|
}
|
|
if (xen_percpu_upcall) {
|
|
unsigned int cpu;
|
|
|
|
for_each_online_cpu(cpu)
|
|
BUG_ON(xen_set_upcall_vector(cpu));
|
|
} else {
|
|
xen_setup_callback_vector();
|
|
}
|
|
xen_unplug_emulated_devices();
|
|
}
|