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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __KVM_TYPES_H__#define __KVM_TYPES_H__
#include <linux/bits.h>#include <linux/export.h>#include <linux/types.h>#include <asm/kvm_types.h>
#ifdef KVM_SUB_MODULES#define EXPORT_SYMBOL_FOR_KVM_INTERNAL(symbol) \ EXPORT_SYMBOL_FOR_MODULES(symbol, __stringify(KVM_SUB_MODULES))#define EXPORT_SYMBOL_FOR_KVM(symbol) \ EXPORT_SYMBOL_FOR_MODULES(symbol, "kvm," __stringify(KVM_SUB_MODULES))#else#define EXPORT_SYMBOL_FOR_KVM_INTERNAL(symbol)/* * Allow architectures to provide a custom EXPORT_SYMBOL_FOR_KVM, but only * if there are no submodules, e.g. to allow suppressing exports if KVM=m, but * kvm.ko won't actually be built (due to lack of at least one submodule). */#ifndef EXPORT_SYMBOL_FOR_KVM#if IS_MODULE(CONFIG_KVM)#define EXPORT_SYMBOL_FOR_KVM(symbol) EXPORT_SYMBOL_FOR_MODULES(symbol, "kvm")#else#define EXPORT_SYMBOL_FOR_KVM(symbol)#endif /* IS_MODULE(CONFIG_KVM) */#endif /* EXPORT_SYMBOL_FOR_KVM */#endif
#ifndef __ASSEMBLER__
#include <linux/mutex.h>#include <linux/spinlock_types.h>
struct kvm;struct kvm_async_pf;struct kvm_device_ops;struct kvm_gfn_range;struct kvm_interrupt;struct kvm_irq_routing_table;struct kvm_memory_slot;struct kvm_one_reg;struct kvm_run;struct kvm_userspace_memory_region;struct kvm_vcpu;struct kvm_vcpu_init;struct kvm_memslots;
enum kvm_mr_change;
/* * Address types: * * gva - guest virtual address * gpa - guest physical address * gfn - guest frame number * hva - host virtual address * hpa - host physical address * hfn - host frame number */
typedef unsigned long gva_t;typedef u64 gpa_t;typedef u64 gfn_t;
#define INVALID_GPA (~(gpa_t)0)
typedef unsigned long hva_t;typedef u64 hpa_t;typedef u64 hfn_t;
typedef hfn_t kvm_pfn_t;
struct gfn_to_hva_cache { u64 generation; gpa_t gpa; unsigned long hva; unsigned long len; struct kvm_memory_slot *memslot;};
struct gfn_to_pfn_cache { u64 generation; gpa_t gpa; unsigned long uhva; struct kvm_memory_slot *memslot; struct kvm *kvm; struct list_head list; rwlock_t lock; struct mutex refresh_lock; void *khva; kvm_pfn_t pfn; bool active; bool valid;};
#ifdef KVM_ARCH_NR_OBJS_PER_MEMORY_CACHE/* * Memory caches are used to preallocate memory ahead of various MMU flows, * e.g. page fault handlers. Gracefully handling allocation failures deep in * MMU flows is problematic, as is triggering reclaim, I/O, etc... while * holding MMU locks. Note, these caches act more like prefetch buffers than * classical caches, i.e. objects are not returned to the cache on being freed. * * The @capacity field and @objects array are lazily initialized when the cache * is topped up (__kvm_mmu_topup_memory_cache()). */struct kvm_mmu_memory_cache { gfp_t gfp_zero; gfp_t gfp_custom; u64 init_value; struct kmem_cache *kmem_cache; int capacity; int nobjs; void **objects;};#endif
#define HALT_POLL_HIST_COUNT 32
struct kvm_vm_stat_generic { u64 remote_tlb_flush; u64 remote_tlb_flush_requests;};
struct kvm_vcpu_stat_generic { u64 halt_successful_poll; u64 halt_attempted_poll; u64 halt_poll_invalid; u64 halt_wakeup; u64 halt_poll_success_ns; u64 halt_poll_fail_ns; u64 halt_wait_ns; u64 halt_poll_success_hist[HALT_POLL_HIST_COUNT]; u64 halt_poll_fail_hist[HALT_POLL_HIST_COUNT]; u64 halt_wait_hist[HALT_POLL_HIST_COUNT]; u64 blocking;};
#define KVM_STATS_NAME_SIZE 48#endif /* !__ASSEMBLER__ */
#endif /* __KVM_TYPES_H__ */