hypervisor/arch/x86/include/asm/iommu.h

   1 /*
   2  * Jailhouse, a Linux-based partitioning hypervisor
   3  *
   4  * Copyright (c) Valentine Sinitsyn, 2014
   5  *
   6  * Authors:
   7  *  Valentine Sinitsyn <valentine.sinitsyn@gmail.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef _JAILHOUSE_ASM_IOMMU_H
  14 #define _JAILHOUSE_ASM_IOMMU_H
  15
  16 #include <jailhouse/entry.h>
  17 #include <jailhouse/cell.h>
  18 #include <jailhouse/cell-config.h>
  19 #include <jailhouse/pci.h>
  20 #include <jailhouse/types.h>
  21 #include <asm/apic.h>
  22 #include <asm/percpu.h>
  23
  24 extern unsigned int fault_reporting_cpu_id;
  25
  26 unsigned int iommu_count_units(void);
  27 unsigned int iommu_mmio_count_regions(struct cell *cell);
  28
  29 int iommu_init(void);
  30
  31 int iommu_cell_init(struct cell *cell);
  32 int iommu_map_memory_region(struct cell *cell,
  33                             const struct jailhouse_memory *mem);
  34 int iommu_unmap_memory_region(struct cell *cell,
  35                               const struct jailhouse_memory *mem);
  36 int iommu_add_pci_device(struct cell *cell, struct pci_device *device);
  37 void iommu_remove_pci_device(struct pci_device *device);
  38
  39 struct apic_irq_message iommu_get_remapped_root_int(unsigned int iommu,
  40                                                     u16 device_id,
  41                                                     unsigned int vector,
  42                                                     unsigned int remap_index);
  43 int iommu_map_interrupt(struct cell *cell,
  44                         u16 device_id,
  45                         unsigned int vector,
  46                         struct apic_irq_message irq_msg);
  47
  48 void iommu_cell_exit(struct cell *cell);
  49
  50 void iommu_config_commit(struct cell *cell_added_removed);
  51
  52 void iommu_shutdown(void);
  53
  54 struct per_cpu *iommu_select_fault_reporting_cpu(void);
  55 void iommu_check_pending_faults(void);
  56
  57 bool iommu_cell_emulates_ir(struct cell *cell);
  58
  59 #endif