Contributors: 16
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Peter Xu |
178 |
64.73% |
1 |
5.26% |
| Gavin Shan |
27 |
9.82% |
3 |
15.79% |
| Christoffer Dall |
19 |
6.91% |
1 |
5.26% |
| Christian Bornträger |
6 |
2.18% |
1 |
5.26% |
| Joerg Roedel |
6 |
2.18% |
1 |
5.26% |
| David Woodhouse |
6 |
2.18% |
1 |
5.26% |
| Xiao Guangrong |
6 |
2.18% |
1 |
5.26% |
| Ben-Ami Yassour |
5 |
1.82% |
1 |
5.26% |
| Raghavendra K T |
5 |
1.82% |
1 |
5.26% |
| Alexander Graf |
4 |
1.45% |
1 |
5.26% |
| Feng Wu |
3 |
1.09% |
2 |
10.53% |
| Paolo Bonzini |
3 |
1.09% |
1 |
5.26% |
| Avi Kivity |
3 |
1.09% |
1 |
5.26% |
| Nadav Amit |
2 |
0.73% |
1 |
5.26% |
| Ben Gardon |
1 |
0.36% |
1 |
5.26% |
| Weidong Han |
1 |
0.36% |
1 |
5.26% |
| Total |
275 |
|
19 |
|
#ifndef KVM_DIRTY_RING_H
#define KVM_DIRTY_RING_H
#include <linux/kvm.h>
/**
* kvm_dirty_ring: KVM internal dirty ring structure
*
* @dirty_index: free running counter that points to the next slot in
* dirty_ring->dirty_gfns, where a new dirty page should go
* @reset_index: free running counter that points to the next dirty page
* in dirty_ring->dirty_gfns for which dirty trap needs to
* be reenabled
* @size: size of the compact list, dirty_ring->dirty_gfns
* @soft_limit: when the number of dirty pages in the list reaches this
* limit, vcpu that owns this ring should exit to userspace
* to allow userspace to harvest all the dirty pages
* @dirty_gfns: the array to keep the dirty gfns
* @index: index of this dirty ring
*/
struct kvm_dirty_ring {
u32 dirty_index;
u32 reset_index;
u32 size;
u32 soft_limit;
struct kvm_dirty_gfn *dirty_gfns;
int index;
};
#ifndef CONFIG_HAVE_KVM_DIRTY_RING
/*
* If CONFIG_HAVE_HVM_DIRTY_RING not defined, kvm_dirty_ring.o should
* not be included as well, so define these nop functions for the arch.
*/
static inline u32 kvm_dirty_ring_get_rsvd_entries(void)
{
return 0;
}
static inline bool kvm_use_dirty_bitmap(struct kvm *kvm)
{
return true;
}
static inline int kvm_dirty_ring_alloc(struct kvm_dirty_ring *ring,
int index, u32 size)
{
return 0;
}
static inline int kvm_dirty_ring_reset(struct kvm *kvm,
struct kvm_dirty_ring *ring)
{
return 0;
}
static inline void kvm_dirty_ring_push(struct kvm_vcpu *vcpu,
u32 slot, u64 offset)
{
}
static inline struct page *kvm_dirty_ring_get_page(struct kvm_dirty_ring *ring,
u32 offset)
{
return NULL;
}
static inline void kvm_dirty_ring_free(struct kvm_dirty_ring *ring)
{
}
#else /* CONFIG_HAVE_KVM_DIRTY_RING */
int kvm_cpu_dirty_log_size(void);
bool kvm_use_dirty_bitmap(struct kvm *kvm);
bool kvm_arch_allow_write_without_running_vcpu(struct kvm *kvm);
u32 kvm_dirty_ring_get_rsvd_entries(void);
int kvm_dirty_ring_alloc(struct kvm_dirty_ring *ring, int index, u32 size);
/*
* called with kvm->slots_lock held, returns the number of
* processed pages.
*/
int kvm_dirty_ring_reset(struct kvm *kvm, struct kvm_dirty_ring *ring);
/*
* returns =0: successfully pushed
* <0: unable to push, need to wait
*/
void kvm_dirty_ring_push(struct kvm_vcpu *vcpu, u32 slot, u64 offset);
bool kvm_dirty_ring_check_request(struct kvm_vcpu *vcpu);
/* for use in vm_operations_struct */
struct page *kvm_dirty_ring_get_page(struct kvm_dirty_ring *ring, u32 offset);
void kvm_dirty_ring_free(struct kvm_dirty_ring *ring);
#endif /* CONFIG_HAVE_KVM_DIRTY_RING */
#endif /* KVM_DIRTY_RING_H */