633 строки
17 KiB
C
633 строки
17 KiB
C
#ifndef __KVM_HOST_H
|
|
#define __KVM_HOST_H
|
|
|
|
/*
|
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
|
* the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/hardirq.h>
|
|
#include <linux/list.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/signal.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/preempt.h>
|
|
#include <linux/msi.h>
|
|
#include <asm/signal.h>
|
|
|
|
#include <linux/kvm.h>
|
|
#include <linux/kvm_para.h>
|
|
|
|
#include <linux/kvm_types.h>
|
|
|
|
#include <asm/kvm_host.h>
|
|
|
|
/*
|
|
* vcpu->requests bit members
|
|
*/
|
|
#define KVM_REQ_TLB_FLUSH 0
|
|
#define KVM_REQ_MIGRATE_TIMER 1
|
|
#define KVM_REQ_REPORT_TPR_ACCESS 2
|
|
#define KVM_REQ_MMU_RELOAD 3
|
|
#define KVM_REQ_TRIPLE_FAULT 4
|
|
#define KVM_REQ_PENDING_TIMER 5
|
|
#define KVM_REQ_UNHALT 6
|
|
#define KVM_REQ_MMU_SYNC 7
|
|
#define KVM_REQ_KVMCLOCK_UPDATE 8
|
|
#define KVM_REQ_KICK 9
|
|
#define KVM_REQ_DEACTIVATE_FPU 10
|
|
|
|
#define KVM_USERSPACE_IRQ_SOURCE_ID 0
|
|
|
|
struct kvm;
|
|
struct kvm_vcpu;
|
|
extern struct kmem_cache *kvm_vcpu_cache;
|
|
|
|
/*
|
|
* It would be nice to use something smarter than a linear search, TBD...
|
|
* Thankfully we dont expect many devices to register (famous last words :),
|
|
* so until then it will suffice. At least its abstracted so we can change
|
|
* in one place.
|
|
*/
|
|
struct kvm_io_bus {
|
|
int dev_count;
|
|
#define NR_IOBUS_DEVS 200
|
|
struct kvm_io_device *devs[NR_IOBUS_DEVS];
|
|
};
|
|
|
|
enum kvm_bus {
|
|
KVM_MMIO_BUS,
|
|
KVM_PIO_BUS,
|
|
KVM_NR_BUSES
|
|
};
|
|
|
|
int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
|
|
int len, const void *val);
|
|
int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len,
|
|
void *val);
|
|
int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx,
|
|
struct kvm_io_device *dev);
|
|
int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
|
|
struct kvm_io_device *dev);
|
|
|
|
struct kvm_vcpu {
|
|
struct kvm *kvm;
|
|
#ifdef CONFIG_PREEMPT_NOTIFIERS
|
|
struct preempt_notifier preempt_notifier;
|
|
#endif
|
|
int vcpu_id;
|
|
struct mutex mutex;
|
|
int cpu;
|
|
struct kvm_run *run;
|
|
unsigned long requests;
|
|
unsigned long guest_debug;
|
|
int srcu_idx;
|
|
|
|
int fpu_active;
|
|
int guest_fpu_loaded;
|
|
wait_queue_head_t wq;
|
|
int sigset_active;
|
|
sigset_t sigset;
|
|
struct kvm_vcpu_stat stat;
|
|
|
|
#ifdef CONFIG_HAS_IOMEM
|
|
int mmio_needed;
|
|
int mmio_read_completed;
|
|
int mmio_is_write;
|
|
int mmio_size;
|
|
unsigned char mmio_data[8];
|
|
gpa_t mmio_phys_addr;
|
|
#endif
|
|
|
|
struct kvm_vcpu_arch arch;
|
|
};
|
|
|
|
/*
|
|
* Some of the bitops functions do not support too long bitmaps.
|
|
* This number must be determined not to exceed such limits.
|
|
*/
|
|
#define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1)
|
|
|
|
struct kvm_memory_slot {
|
|
gfn_t base_gfn;
|
|
unsigned long npages;
|
|
unsigned long flags;
|
|
unsigned long *rmap;
|
|
unsigned long *dirty_bitmap;
|
|
struct {
|
|
unsigned long rmap_pde;
|
|
int write_count;
|
|
} *lpage_info[KVM_NR_PAGE_SIZES - 1];
|
|
unsigned long userspace_addr;
|
|
int user_alloc;
|
|
};
|
|
|
|
static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)
|
|
{
|
|
return ALIGN(memslot->npages, BITS_PER_LONG) / 8;
|
|
}
|
|
|
|
struct kvm_kernel_irq_routing_entry {
|
|
u32 gsi;
|
|
u32 type;
|
|
int (*set)(struct kvm_kernel_irq_routing_entry *e,
|
|
struct kvm *kvm, int irq_source_id, int level);
|
|
union {
|
|
struct {
|
|
unsigned irqchip;
|
|
unsigned pin;
|
|
} irqchip;
|
|
struct msi_msg msi;
|
|
};
|
|
struct hlist_node link;
|
|
};
|
|
|
|
#ifdef __KVM_HAVE_IOAPIC
|
|
|
|
struct kvm_irq_routing_table {
|
|
int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS];
|
|
struct kvm_kernel_irq_routing_entry *rt_entries;
|
|
u32 nr_rt_entries;
|
|
/*
|
|
* Array indexed by gsi. Each entry contains list of irq chips
|
|
* the gsi is connected to.
|
|
*/
|
|
struct hlist_head map[0];
|
|
};
|
|
|
|
#else
|
|
|
|
struct kvm_irq_routing_table {};
|
|
|
|
#endif
|
|
|
|
struct kvm_memslots {
|
|
int nmemslots;
|
|
struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
|
|
KVM_PRIVATE_MEM_SLOTS];
|
|
};
|
|
|
|
struct kvm {
|
|
spinlock_t mmu_lock;
|
|
raw_spinlock_t requests_lock;
|
|
struct mutex slots_lock;
|
|
struct mm_struct *mm; /* userspace tied to this vm */
|
|
struct kvm_memslots *memslots;
|
|
struct srcu_struct srcu;
|
|
#ifdef CONFIG_KVM_APIC_ARCHITECTURE
|
|
u32 bsp_vcpu_id;
|
|
struct kvm_vcpu *bsp_vcpu;
|
|
#endif
|
|
struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
|
|
atomic_t online_vcpus;
|
|
struct list_head vm_list;
|
|
struct mutex lock;
|
|
struct kvm_io_bus *buses[KVM_NR_BUSES];
|
|
#ifdef CONFIG_HAVE_KVM_EVENTFD
|
|
struct {
|
|
spinlock_t lock;
|
|
struct list_head items;
|
|
} irqfds;
|
|
struct list_head ioeventfds;
|
|
#endif
|
|
struct kvm_vm_stat stat;
|
|
struct kvm_arch arch;
|
|
atomic_t users_count;
|
|
#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
|
|
struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
|
|
struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
|
|
#endif
|
|
|
|
struct mutex irq_lock;
|
|
#ifdef CONFIG_HAVE_KVM_IRQCHIP
|
|
struct kvm_irq_routing_table *irq_routing;
|
|
struct hlist_head mask_notifier_list;
|
|
struct hlist_head irq_ack_notifier_list;
|
|
#endif
|
|
|
|
#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
|
|
struct mmu_notifier mmu_notifier;
|
|
unsigned long mmu_notifier_seq;
|
|
long mmu_notifier_count;
|
|
#endif
|
|
};
|
|
|
|
/* The guest did something we don't support. */
|
|
#define pr_unimpl(vcpu, fmt, ...) \
|
|
do { \
|
|
if (printk_ratelimit()) \
|
|
printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
|
|
current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
|
|
} while (0)
|
|
|
|
#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
|
|
#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
|
|
|
|
static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
|
|
{
|
|
smp_rmb();
|
|
return kvm->vcpus[i];
|
|
}
|
|
|
|
#define kvm_for_each_vcpu(idx, vcpup, kvm) \
|
|
for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
|
|
idx < atomic_read(&kvm->online_vcpus) && vcpup; \
|
|
vcpup = kvm_get_vcpu(kvm, ++idx))
|
|
|
|
int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
|
|
void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
|
|
|
|
void vcpu_load(struct kvm_vcpu *vcpu);
|
|
void vcpu_put(struct kvm_vcpu *vcpu);
|
|
|
|
int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
|
|
struct module *module);
|
|
void kvm_exit(void);
|
|
|
|
void kvm_get_kvm(struct kvm *kvm);
|
|
void kvm_put_kvm(struct kvm *kvm);
|
|
|
|
static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm)
|
|
{
|
|
return rcu_dereference_check(kvm->memslots,
|
|
srcu_read_lock_held(&kvm->srcu)
|
|
|| lockdep_is_held(&kvm->slots_lock));
|
|
}
|
|
|
|
#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
|
|
#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
|
|
static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
|
|
|
|
extern struct page *bad_page;
|
|
extern pfn_t bad_pfn;
|
|
|
|
int is_error_page(struct page *page);
|
|
int is_error_pfn(pfn_t pfn);
|
|
int kvm_is_error_hva(unsigned long addr);
|
|
int kvm_set_memory_region(struct kvm *kvm,
|
|
struct kvm_userspace_memory_region *mem,
|
|
int user_alloc);
|
|
int __kvm_set_memory_region(struct kvm *kvm,
|
|
struct kvm_userspace_memory_region *mem,
|
|
int user_alloc);
|
|
int kvm_arch_prepare_memory_region(struct kvm *kvm,
|
|
struct kvm_memory_slot *memslot,
|
|
struct kvm_memory_slot old,
|
|
struct kvm_userspace_memory_region *mem,
|
|
int user_alloc);
|
|
void kvm_arch_commit_memory_region(struct kvm *kvm,
|
|
struct kvm_userspace_memory_region *mem,
|
|
struct kvm_memory_slot old,
|
|
int user_alloc);
|
|
void kvm_disable_largepages(void);
|
|
void kvm_arch_flush_shadow(struct kvm *kvm);
|
|
gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
|
|
gfn_t unalias_gfn_instantiation(struct kvm *kvm, gfn_t gfn);
|
|
|
|
struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
|
|
unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
|
|
void kvm_release_page_clean(struct page *page);
|
|
void kvm_release_page_dirty(struct page *page);
|
|
void kvm_set_page_dirty(struct page *page);
|
|
void kvm_set_page_accessed(struct page *page);
|
|
|
|
pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
|
|
pfn_t gfn_to_pfn_memslot(struct kvm *kvm,
|
|
struct kvm_memory_slot *slot, gfn_t gfn);
|
|
int memslot_id(struct kvm *kvm, gfn_t gfn);
|
|
void kvm_release_pfn_dirty(pfn_t);
|
|
void kvm_release_pfn_clean(pfn_t pfn);
|
|
void kvm_set_pfn_dirty(pfn_t pfn);
|
|
void kvm_set_pfn_accessed(pfn_t pfn);
|
|
void kvm_get_pfn(pfn_t pfn);
|
|
|
|
int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
|
|
int len);
|
|
int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
|
|
unsigned long len);
|
|
int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
|
|
int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
|
|
int offset, int len);
|
|
int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
|
|
unsigned long len);
|
|
int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
|
|
int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
|
|
struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
|
|
int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
|
|
unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn);
|
|
void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
|
|
|
|
void kvm_vcpu_block(struct kvm_vcpu *vcpu);
|
|
void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu);
|
|
void kvm_resched(struct kvm_vcpu *vcpu);
|
|
void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
|
|
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
|
|
void kvm_flush_remote_tlbs(struct kvm *kvm);
|
|
void kvm_reload_remote_mmus(struct kvm *kvm);
|
|
|
|
long kvm_arch_dev_ioctl(struct file *filp,
|
|
unsigned int ioctl, unsigned long arg);
|
|
long kvm_arch_vcpu_ioctl(struct file *filp,
|
|
unsigned int ioctl, unsigned long arg);
|
|
|
|
int kvm_dev_ioctl_check_extension(long ext);
|
|
|
|
int kvm_get_dirty_log(struct kvm *kvm,
|
|
struct kvm_dirty_log *log, int *is_dirty);
|
|
int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
|
|
struct kvm_dirty_log *log);
|
|
|
|
int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
|
|
struct
|
|
kvm_userspace_memory_region *mem,
|
|
int user_alloc);
|
|
long kvm_arch_vm_ioctl(struct file *filp,
|
|
unsigned int ioctl, unsigned long arg);
|
|
|
|
int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
|
|
int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
|
|
|
|
int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
|
|
struct kvm_translation *tr);
|
|
|
|
int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
|
|
int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
|
|
int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
|
|
struct kvm_sregs *sregs);
|
|
int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
|
|
struct kvm_sregs *sregs);
|
|
int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
|
|
struct kvm_mp_state *mp_state);
|
|
int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
|
|
struct kvm_mp_state *mp_state);
|
|
int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
|
|
struct kvm_guest_debug *dbg);
|
|
int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
|
|
|
|
int kvm_arch_init(void *opaque);
|
|
void kvm_arch_exit(void);
|
|
|
|
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
|
|
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
|
|
|
|
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
|
|
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
|
|
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
|
|
struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
|
|
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
|
|
void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
|
|
|
|
int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
|
|
int kvm_arch_hardware_enable(void *garbage);
|
|
void kvm_arch_hardware_disable(void *garbage);
|
|
int kvm_arch_hardware_setup(void);
|
|
void kvm_arch_hardware_unsetup(void);
|
|
void kvm_arch_check_processor_compat(void *rtn);
|
|
int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
|
|
|
|
void kvm_free_physmem(struct kvm *kvm);
|
|
|
|
struct kvm *kvm_arch_create_vm(void);
|
|
void kvm_arch_destroy_vm(struct kvm *kvm);
|
|
void kvm_free_all_assigned_devices(struct kvm *kvm);
|
|
void kvm_arch_sync_events(struct kvm *kvm);
|
|
|
|
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
|
|
void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
|
|
|
|
int kvm_is_mmio_pfn(pfn_t pfn);
|
|
|
|
struct kvm_irq_ack_notifier {
|
|
struct hlist_node link;
|
|
unsigned gsi;
|
|
void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
|
|
};
|
|
|
|
#define KVM_ASSIGNED_MSIX_PENDING 0x1
|
|
struct kvm_guest_msix_entry {
|
|
u32 vector;
|
|
u16 entry;
|
|
u16 flags;
|
|
};
|
|
|
|
struct kvm_assigned_dev_kernel {
|
|
struct kvm_irq_ack_notifier ack_notifier;
|
|
struct work_struct interrupt_work;
|
|
struct list_head list;
|
|
int assigned_dev_id;
|
|
int host_segnr;
|
|
int host_busnr;
|
|
int host_devfn;
|
|
unsigned int entries_nr;
|
|
int host_irq;
|
|
bool host_irq_disabled;
|
|
struct msix_entry *host_msix_entries;
|
|
int guest_irq;
|
|
struct kvm_guest_msix_entry *guest_msix_entries;
|
|
unsigned long irq_requested_type;
|
|
int irq_source_id;
|
|
int flags;
|
|
struct pci_dev *dev;
|
|
struct kvm *kvm;
|
|
spinlock_t assigned_dev_lock;
|
|
};
|
|
|
|
struct kvm_irq_mask_notifier {
|
|
void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
|
|
int irq;
|
|
struct hlist_node link;
|
|
};
|
|
|
|
void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
|
|
struct kvm_irq_mask_notifier *kimn);
|
|
void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
|
|
struct kvm_irq_mask_notifier *kimn);
|
|
void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
|
|
|
|
#ifdef __KVM_HAVE_IOAPIC
|
|
void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic,
|
|
union kvm_ioapic_redirect_entry *entry,
|
|
unsigned long *deliver_bitmask);
|
|
#endif
|
|
int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level);
|
|
void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
|
|
void kvm_register_irq_ack_notifier(struct kvm *kvm,
|
|
struct kvm_irq_ack_notifier *kian);
|
|
void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
|
|
struct kvm_irq_ack_notifier *kian);
|
|
int kvm_request_irq_source_id(struct kvm *kvm);
|
|
void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
|
|
|
|
/* For vcpu->arch.iommu_flags */
|
|
#define KVM_IOMMU_CACHE_COHERENCY 0x1
|
|
|
|
#ifdef CONFIG_IOMMU_API
|
|
int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
|
|
int kvm_iommu_map_guest(struct kvm *kvm);
|
|
int kvm_iommu_unmap_guest(struct kvm *kvm);
|
|
int kvm_assign_device(struct kvm *kvm,
|
|
struct kvm_assigned_dev_kernel *assigned_dev);
|
|
int kvm_deassign_device(struct kvm *kvm,
|
|
struct kvm_assigned_dev_kernel *assigned_dev);
|
|
#else /* CONFIG_IOMMU_API */
|
|
static inline int kvm_iommu_map_pages(struct kvm *kvm,
|
|
gfn_t base_gfn,
|
|
unsigned long npages)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int kvm_iommu_map_guest(struct kvm *kvm)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int kvm_assign_device(struct kvm *kvm,
|
|
struct kvm_assigned_dev_kernel *assigned_dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int kvm_deassign_device(struct kvm *kvm,
|
|
struct kvm_assigned_dev_kernel *assigned_dev)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_IOMMU_API */
|
|
|
|
static inline void kvm_guest_enter(void)
|
|
{
|
|
account_system_vtime(current);
|
|
current->flags |= PF_VCPU;
|
|
}
|
|
|
|
static inline void kvm_guest_exit(void)
|
|
{
|
|
account_system_vtime(current);
|
|
current->flags &= ~PF_VCPU;
|
|
}
|
|
|
|
static inline gpa_t gfn_to_gpa(gfn_t gfn)
|
|
{
|
|
return (gpa_t)gfn << PAGE_SHIFT;
|
|
}
|
|
|
|
static inline hpa_t pfn_to_hpa(pfn_t pfn)
|
|
{
|
|
return (hpa_t)pfn << PAGE_SHIFT;
|
|
}
|
|
|
|
static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
|
|
{
|
|
set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
|
|
}
|
|
|
|
enum kvm_stat_kind {
|
|
KVM_STAT_VM,
|
|
KVM_STAT_VCPU,
|
|
};
|
|
|
|
struct kvm_stats_debugfs_item {
|
|
const char *name;
|
|
int offset;
|
|
enum kvm_stat_kind kind;
|
|
struct dentry *dentry;
|
|
};
|
|
extern struct kvm_stats_debugfs_item debugfs_entries[];
|
|
extern struct dentry *kvm_debugfs_dir;
|
|
|
|
#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
|
|
static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
|
|
{
|
|
if (unlikely(vcpu->kvm->mmu_notifier_count))
|
|
return 1;
|
|
/*
|
|
* Both reads happen under the mmu_lock and both values are
|
|
* modified under mmu_lock, so there's no need of smb_rmb()
|
|
* here in between, otherwise mmu_notifier_count should be
|
|
* read before mmu_notifier_seq, see
|
|
* mmu_notifier_invalidate_range_end write side.
|
|
*/
|
|
if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifndef KVM_ARCH_HAS_UNALIAS_INSTANTIATION
|
|
#define unalias_gfn_instantiation unalias_gfn
|
|
#endif
|
|
|
|
#ifdef CONFIG_HAVE_KVM_IRQCHIP
|
|
|
|
#define KVM_MAX_IRQ_ROUTES 1024
|
|
|
|
int kvm_setup_default_irq_routing(struct kvm *kvm);
|
|
int kvm_set_irq_routing(struct kvm *kvm,
|
|
const struct kvm_irq_routing_entry *entries,
|
|
unsigned nr,
|
|
unsigned flags);
|
|
void kvm_free_irq_routing(struct kvm *kvm);
|
|
|
|
#else
|
|
|
|
static inline void kvm_free_irq_routing(struct kvm *kvm) {}
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_HAVE_KVM_EVENTFD
|
|
|
|
void kvm_eventfd_init(struct kvm *kvm);
|
|
int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
|
|
void kvm_irqfd_release(struct kvm *kvm);
|
|
int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args);
|
|
|
|
#else
|
|
|
|
static inline void kvm_eventfd_init(struct kvm *kvm) {}
|
|
static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline void kvm_irqfd_release(struct kvm *kvm) {}
|
|
static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
#endif /* CONFIG_HAVE_KVM_EVENTFD */
|
|
|
|
#ifdef CONFIG_KVM_APIC_ARCHITECTURE
|
|
static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
|
|
}
|
|
#endif
|
|
|
|
#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
|
|
|
|
long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
|
|
unsigned long arg);
|
|
|
|
#else
|
|
|
|
static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
|
|
unsigned long arg)
|
|
{
|
|
return -ENOTTY;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|