tools/testing/selftests/kvm/lib/kvm_util_internal.h

   1 /*
   2  * tools/testing/selftests/kvm/lib/kvm_util.c
   3  *
   4  * Copyright (C) 2018, Google LLC.
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2.
   7  */
   8
   9 #ifndef KVM_UTIL_INTERNAL_H
  10 #define KVM_UTIL_INTERNAL_H 1
  11
  12 #include "sparsebit.h"
  13
  14 #ifndef BITS_PER_BYTE
  15 #define BITS_PER_BYTE           8
  16 #endif
  17
  18 #ifndef BITS_PER_LONG
  19 #define BITS_PER_LONG (BITS_PER_BYTE * sizeof(long))
  20 #endif
  21
  22 #define DIV_ROUND_UP(n, d)      (((n) + (d) - 1) / (d))
  23 #define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_LONG)
  24
  25 /* Concrete definition of struct kvm_vm. */
  26 struct userspace_mem_region {
  27         struct userspace_mem_region *next, *prev;
  28         struct kvm_userspace_memory_region region;
  29         struct sparsebit *unused_phy_pages;
  30         int fd;
  31         off_t offset;
  32         void *host_mem;
  33         void *mmap_start;
  34         size_t mmap_size;
  35 };
  36
  37 struct vcpu {
  38         struct vcpu *next, *prev;
  39         uint32_t id;
  40         int fd;
  41         struct kvm_run *state;
  42 };
  43
  44 struct kvm_vm {
  45         int mode;
  46         int kvm_fd;
  47         int fd;
  48         unsigned int page_size;
  49         unsigned int page_shift;
  50         uint64_t max_gfn;
  51         struct vcpu *vcpu_head;
  52         struct userspace_mem_region *userspace_mem_region_head;
  53         struct sparsebit *vpages_valid;
  54         struct sparsebit *vpages_mapped;
  55
  56         bool has_irqchip;
  57         bool pgd_created;
  58         vm_paddr_t pgd;
  59         vm_vaddr_t gdt;
  60         vm_vaddr_t tss;
  61 };
  62
  63 struct vcpu *vcpu_find(struct kvm_vm *vm,
  64         uint32_t vcpuid);
  65 void vcpu_setup(struct kvm_vm *vm, int vcpuid, int pgd_memslot, int gdt_memslot);
  66 void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
  67 void regs_dump(FILE *stream, struct kvm_regs *regs,
  68         uint8_t indent);
  69 void sregs_dump(FILE *stream, struct kvm_sregs *sregs,
  70         uint8_t indent);
  71
  72 #endif