qemu-kvm.h

   1 /*
   2  * qemu/kvm integration
   3  *
   4  * Copyright (C) 2006-2008 Qumranet Technologies
   5  *
   6  * Licensed under the terms of the GNU GPL version 2 or higher.
   7  */
   8 #ifndef THE_ORIGINAL_AND_TRUE_QEMU_KVM_H
   9 #define THE_ORIGINAL_AND_TRUE_QEMU_KVM_H
  10
  11 #include "cpu.h"
  12
  13 #include <signal.h>
  14 #include <stdlib.h>
  15
  16 #ifdef CONFIG_KVM
  17
  18 #include <stdint.h>
  19
  20 #ifndef __user
  21 #define __user       /* temporary, until installed via make headers_install */
  22 #endif
  23
  24 #include <linux/kvm.h>
  25
  26 #include <signal.h>
  27
  28 /* FIXME: share this number with kvm */
  29 /* FIXME: or dynamically alloc/realloc regions */
  30 #define KVM_MAX_NUM_MEM_REGIONS 32u
  31 #define MAX_VCPUS 16
  32
  33 #include "kvm.h"
  34
  35 /*!
  36  * \brief Notifies host kernel about a PCI device to be assigned to a guest
  37  *
  38  * Used for PCI device assignment, this function notifies the host
  39  * kernel about the assigning of the physical PCI device to a guest.
  40  *
  41  * \param kvm Pointer to the current kvm_context
  42  * \param assigned_dev Parameters, like bus, devfn number, etc
  43  */
  44 int kvm_assign_pci_device(KVMState *s,
  45                           struct kvm_assigned_pci_dev *assigned_dev);
  46
  47 /*!
  48  * \brief Assign IRQ for an assigned device
  49  *
  50  * Used for PCI device assignment, this function assigns IRQ numbers for
  51  * an physical device and guest IRQ handling.
  52  *
  53  * \param kvm Pointer to the current kvm_context
  54  * \param assigned_irq Parameters, like dev id, host irq, guest irq, etc
  55  */
  56 int kvm_assign_irq(KVMState *s, struct kvm_assigned_irq *assigned_irq);
  57
  58 /*!
  59  * \brief Deassign IRQ for an assigned device
  60  *
  61  * Used for PCI device assignment, this function deassigns IRQ numbers
  62  * for an assigned device.
  63  *
  64  * \param kvm Pointer to the current kvm_context
  65  * \param assigned_irq Parameters, like dev id, host irq, guest irq, etc
  66  */
  67 int kvm_deassign_irq(KVMState *s, struct kvm_assigned_irq *assigned_irq);
  68
  69 int kvm_device_intx_set_mask(KVMState *s, uint32_t dev_id, bool masked);
  70
  71 /*!
  72  * \brief Notifies host kernel about a PCI device to be deassigned from a guest
  73  *
  74  * Used for hot remove PCI device, this function notifies the host
  75  * kernel about the deassigning of the physical PCI device from a guest.
  76  *
  77  * \param kvm Pointer to the current kvm_context
  78  * \param assigned_dev Parameters, like bus, devfn number, etc
  79  */
  80 int kvm_deassign_pci_device(KVMState *s,
  81                             struct kvm_assigned_pci_dev *assigned_dev);
  82
  83 struct kvm_irq_routing_entry;
  84
  85 void kvm_add_routing_entry(KVMState *s, struct kvm_irq_routing_entry *entry);
  86
  87 /*!
  88  * \brief Removes a routing from the temporary irq routing table
  89  *
  90  * Remove a routing to the temporary irq routing table.  Nothing is
  91  * committed to the running VM.
  92  */
  93 int kvm_del_routing_entry(struct kvm_irq_routing_entry *entry);
  94
  95 /*!
  96  * \brief Updates a routing in the temporary irq routing table
  97  *
  98  * Update a routing in the temporary irq routing table
  99  * with a new value. entry type and GSI can not be changed.
 100  * Nothing is committed to the running VM.
 101  */
 102 int kvm_update_routing_entry(struct kvm_irq_routing_entry *entry,
 103                              struct kvm_irq_routing_entry *newentry);
 104
 105
 106 int kvm_assign_set_msix_nr(KVMState *s, struct kvm_assigned_msix_nr *msix_nr);
 107 int kvm_assign_set_msix_entry(KVMState *s,
 108                               struct kvm_assigned_msix_entry *entry);
 109
 110 #endif /* CONFIG_KVM */
 111
 112 #endif