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

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INCLUDED FROM


   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * tools/testing/selftests/kvm/lib/kvm_util_internal.h
   4  *
   5  * Copyright (C) 2018, Google LLC.
   6  */
   7 
   8 #ifndef SELFTEST_KVM_UTIL_INTERNAL_H
   9 #define SELFTEST_KVM_UTIL_INTERNAL_H
  10 
  11 #include "sparsebit.h"
  12 
  13 #define KVM_DEV_PATH            "/dev/kvm"
  14 
  15 #ifndef BITS_PER_BYTE
  16 #define BITS_PER_BYTE           8
  17 #endif
  18 
  19 #ifndef BITS_PER_LONG
  20 #define BITS_PER_LONG           (BITS_PER_BYTE * sizeof(long))
  21 #endif
  22 
  23 #define DIV_ROUND_UP(n, d)      (((n) + (d) - 1) / (d))
  24 #define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_LONG)
  25 
  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         unsigned long type;
  47         int kvm_fd;
  48         int fd;
  49         unsigned int pgtable_levels;
  50         unsigned int page_size;
  51         unsigned int page_shift;
  52         unsigned int pa_bits;
  53         unsigned int va_bits;
  54         uint64_t max_gfn;
  55         struct vcpu *vcpu_head;
  56         struct userspace_mem_region *userspace_mem_region_head;
  57         struct sparsebit *vpages_valid;
  58         struct sparsebit *vpages_mapped;
  59         bool has_irqchip;
  60         bool pgd_created;
  61         vm_paddr_t pgd;
  62         vm_vaddr_t gdt;
  63         vm_vaddr_t tss;
  64 };
  65 
  66 struct vcpu *vcpu_find(struct kvm_vm *vm, uint32_t vcpuid);
  67 void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
  68 void regs_dump(FILE *stream, struct kvm_regs *regs, uint8_t indent);
  69 void sregs_dump(FILE *stream, struct kvm_sregs *sregs, uint8_t indent);
  70 
  71 struct userspace_mem_region *
  72 memslot2region(struct kvm_vm *vm, uint32_t memslot);
  73 
  74 #endif /* SELFTEST_KVM_UTIL_INTERNAL_H */

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