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authorZhang Xiantao <xiantao.zhang@intel.com>2007-12-13 20:41:22 -0500
committerAvi Kivity <avi@qumranet.com>2008-01-30 10:58:09 -0500
commitd657a98e3c20537d8b4d44aef51cf4311d96f2b0 (patch)
treecf1e1e2e3c0d05617ab6baf5c017987708a55d41 /drivers/kvm/kvm.h
parent1d737c8a68736db36e0aa502ace9da240704c5ae (diff)
KVM: Portability: Move kvm_vcpu definition back to kvm.h
This patches moves kvm_vcpu definition to kvm.h, and finally kvm.h includes x86.h. Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com> Acked-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/kvm.h')
-rw-r--r--drivers/kvm/kvm.h113
1 files changed, 8 insertions, 105 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index c040bb3ac819..53717be80bbe 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -22,17 +22,13 @@
22 22
23#include "types.h" 23#include "types.h"
24 24
25#include "x86.h"
26
25#define KVM_MAX_VCPUS 4 27#define KVM_MAX_VCPUS 4
26#define KVM_ALIAS_SLOTS 4 28#define KVM_ALIAS_SLOTS 4
27#define KVM_MEMORY_SLOTS 8 29#define KVM_MEMORY_SLOTS 8
28/* memory slots that does not exposed to userspace */ 30/* memory slots that does not exposed to userspace */
29#define KVM_PRIVATE_MEM_SLOTS 4 31#define KVM_PRIVATE_MEM_SLOTS 4
30#define KVM_PERMILLE_MMU_PAGES 20
31#define KVM_MIN_ALLOC_MMU_PAGES 64
32#define KVM_NUM_MMU_PAGES 1024
33#define KVM_MIN_FREE_MMU_PAGES 5
34#define KVM_REFILL_PAGES 25
35#define KVM_MAX_CPUID_ENTRIES 40
36 32
37#define KVM_PIO_PAGE_OFFSET 1 33#define KVM_PIO_PAGE_OFFSET 1
38 34
@@ -41,111 +37,16 @@
41 */ 37 */
42#define KVM_REQ_TLB_FLUSH 0 38#define KVM_REQ_TLB_FLUSH 0
43 39
44#define NR_PTE_CHAIN_ENTRIES 5
45
46struct kvm_pte_chain {
47 u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
48 struct hlist_node link;
49};
50
51/*
52 * kvm_mmu_page_role, below, is defined as:
53 *
54 * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
55 * bits 4:7 - page table level for this shadow (1-4)
56 * bits 8:9 - page table quadrant for 2-level guests
57 * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode)
58 * bits 17:19 - common access permissions for all ptes in this shadow page
59 */
60union kvm_mmu_page_role {
61 unsigned word;
62 struct {
63 unsigned glevels : 4;
64 unsigned level : 4;
65 unsigned quadrant : 2;
66 unsigned pad_for_nice_hex_output : 6;
67 unsigned metaphysical : 1;
68 unsigned access : 3;
69 };
70};
71
72struct kvm_mmu_page {
73 struct list_head link;
74 struct hlist_node hash_link;
75
76 /*
77 * The following two entries are used to key the shadow page in the
78 * hash table.
79 */
80 gfn_t gfn;
81 union kvm_mmu_page_role role;
82
83 u64 *spt;
84 /* hold the gfn of each spte inside spt */
85 gfn_t *gfns;
86 unsigned long slot_bitmap; /* One bit set per slot which has memory
87 * in this shadow page.
88 */
89 int multimapped; /* More than one parent_pte? */
90 int root_count; /* Currently serving as active root */
91 union {
92 u64 *parent_pte; /* !multimapped */
93 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
94 };
95};
96 40
97struct kvm_vcpu; 41struct kvm_vcpu;
98extern struct kmem_cache *kvm_vcpu_cache; 42extern struct kmem_cache *kvm_vcpu_cache;
99 43
100/*
101 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
102 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
103 * mode.
104 */
105struct kvm_mmu {
106 void (*new_cr3)(struct kvm_vcpu *vcpu);
107 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
108 void (*free)(struct kvm_vcpu *vcpu);
109 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
110 void (*prefetch_page)(struct kvm_vcpu *vcpu,
111 struct kvm_mmu_page *page);
112 hpa_t root_hpa;
113 int root_level;
114 int shadow_root_level;
115
116 u64 *pae_root;
117};
118
119#define KVM_NR_MEM_OBJS 40
120
121/*
122 * We don't want allocation failures within the mmu code, so we preallocate
123 * enough memory for a single page fault in a cache.
124 */
125struct kvm_mmu_memory_cache {
126 int nobjs;
127 void *objects[KVM_NR_MEM_OBJS];
128};
129
130struct kvm_guest_debug { 44struct kvm_guest_debug {
131 int enabled; 45 int enabled;
132 unsigned long bp[4]; 46 unsigned long bp[4];
133 int singlestep; 47 int singlestep;
134}; 48};
135 49
136struct kvm_pio_request {
137 unsigned long count;
138 int cur_count;
139 struct page *guest_pages[2];
140 unsigned guest_page_offset;
141 int in;
142 int port;
143 int size;
144 int string;
145 int down;
146 int rep;
147};
148
149struct kvm_vcpu_stat { 50struct kvm_vcpu_stat {
150 u32 pf_fixed; 51 u32 pf_fixed;
151 u32 pf_guest; 52 u32 pf_guest;
@@ -218,6 +119,12 @@ void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
218 struct kvm_vcpu_stat stat; \ 119 struct kvm_vcpu_stat stat; \
219 KVM_VCPU_MMIO 120 KVM_VCPU_MMIO
220 121
122struct kvm_vcpu {
123 KVM_VCPU_COMM;
124
125 struct kvm_vcpu_arch arch;
126};
127
221struct kvm_mem_alias { 128struct kvm_mem_alias {
222 gfn_t base_gfn; 129 gfn_t base_gfn;
223 unsigned long npages; 130 unsigned long npages;
@@ -441,8 +348,4 @@ struct kvm_stats_debugfs_item {
441}; 348};
442extern struct kvm_stats_debugfs_item debugfs_entries[]; 349extern struct kvm_stats_debugfs_item debugfs_entries[];
443 350
444#if defined(CONFIG_X86)
445#include "x86.h"
446#endif
447
448#endif 351#endif