virt/kvm/arm/vgic/vgic-irqfd.c

   1 /*
   2  * Copyright (C) 2015, 2016 ARM Ltd.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16
  17 #include <linux/kvm.h>
  18 #include <linux/kvm_host.h>
  19 #include <trace/events/kvm.h>
  20
  21 int kvm_irq_map_gsi(struct kvm *kvm,
  22                     struct kvm_kernel_irq_routing_entry *entries,
  23                     int gsi)
  24 {
  25         return 0;
  26 }
  27
  28 int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned int irqchip,
  29                          unsigned int pin)
  30 {
  31         return pin;
  32 }
  33
  34 int kvm_set_irq(struct kvm *kvm, int irq_source_id,
  35                 u32 irq, int level, bool line_status)
  36 {
  37         unsigned int spi = irq + VGIC_NR_PRIVATE_IRQS;
  38
  39         trace_kvm_set_irq(irq, level, irq_source_id);
  40
  41         BUG_ON(!vgic_initialized(kvm));
  42
  43         return kvm_vgic_inject_irq(kvm, 0, spi, level);
  44 }
  45
  46 /* MSI not implemented yet */
  47 int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
  48                 struct kvm *kvm, int irq_source_id,
  49                 int level, bool line_status)
  50 {
  51         return 0;
  52 }