mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 09:25:05 +07:00
64a959d66e
The new VGIC implementation centers around a struct vgic_irq instance per virtual IRQ. Provide a function to retrieve the right instance for a given IRQ number and (in case of private interrupts) the right VCPU. Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Eric Auger <eric.auger@linaro.org> Acked-by: Marc Zyngier <marc.zyngier@arm.com>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2015, 2016 ARM Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <linux/kvm.h>
|
|
#include <linux/kvm_host.h>
|
|
|
|
#include "vgic.h"
|
|
|
|
struct vgic_global __section(.hyp.text) kvm_vgic_global_state;
|
|
|
|
struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu,
|
|
u32 intid)
|
|
{
|
|
/* SGIs and PPIs */
|
|
if (intid <= VGIC_MAX_PRIVATE)
|
|
return &vcpu->arch.vgic_cpu.private_irqs[intid];
|
|
|
|
/* SPIs */
|
|
if (intid <= VGIC_MAX_SPI)
|
|
return &kvm->arch.vgic.spis[intid - VGIC_NR_PRIVATE_IRQS];
|
|
|
|
/* LPIs are not yet covered */
|
|
if (intid >= VGIC_MIN_LPI)
|
|
return NULL;
|
|
|
|
WARN(1, "Looking up struct vgic_irq for reserved INTID");
|
|
return NULL;
|
|
}
|