2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2, as
4 * published by the Free Software Foundation.
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
15 * Copyright IBM Corp. 2007
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
20 #ifndef __POWERPC_KVM_HOST_H__
21 #define __POWERPC_KVM_HOST_H__
23 #include <linux/mutex.h>
24 #include <linux/hrtimer.h>
25 #include <linux/interrupt.h>
26 #include <linux/types.h>
27 #include <linux/kvm_types.h>
28 #include <linux/kvm_para.h>
29 #include <asm/kvm_asm.h>
31 #define KVM_MAX_VCPUS 1
32 #define KVM_MEMORY_SLOTS 32
33 /* memory slots that does not exposed to userspace */
34 #define KVM_PRIVATE_MEM_SLOTS 4
36 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
38 /* We don't currently support large pages. */
39 #define KVM_HPAGE_GFN_SHIFT(x) 0
40 #define KVM_NR_PAGE_SIZES 1
41 #define KVM_PAGES_PER_HPAGE(x) (1UL<<31)
43 #define HPTEG_CACHE_NUM (1 << 15)
44 #define HPTEG_HASH_BITS_PTE 13
45 #define HPTEG_HASH_BITS_PTE_LONG 12
46 #define HPTEG_HASH_BITS_VPTE 13
47 #define HPTEG_HASH_BITS_VPTE_LONG 5
48 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
49 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG)
50 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
51 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
53 /* Physical Address Mask - allowed range of real mode RAM access */
54 #define KVM_PAM 0x0fffffffffffffffULL
64 struct kvm_vcpu_stat {
70 /* Account for special types of light exits: */
71 u32 itlb_real_miss_exits;
72 u32 itlb_virt_miss_exits;
73 u32 dtlb_real_miss_exits;
74 u32 dtlb_virt_miss_exits;
78 u32 emulated_inst_exits;
82 #ifdef CONFIG_PPC_BOOK3S
100 ITLB_VIRT_MISS_EXITS,
101 DTLB_REAL_MISS_EXITS,
102 DTLB_VIRT_MISS_EXITS,
107 EMULATED_MTMSRWE_EXITS,
108 EMULATED_WRTEE_EXITS,
109 EMULATED_MTSPR_EXITS,
110 EMULATED_MFSPR_EXITS,
111 EMULATED_MTMSR_EXITS,
112 EMULATED_MFMSR_EXITS,
113 EMULATED_TLBSX_EXITS,
114 EMULATED_TLBWE_EXITS,
123 __NUMBER_OF_KVM_EXIT_TYPES
126 /* allow access to big endian 32bit upper/lower parts and 64bit var */
127 struct kvmppc_exit_timing {
145 bool may_execute : 1;
150 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
151 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
152 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
153 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
154 void (*slbia)(struct kvm_vcpu *vcpu);
156 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
157 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
158 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data);
159 void (*reset_msr)(struct kvm_vcpu *vcpu);
160 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
161 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
162 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
163 bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
167 struct hlist_node list_pte;
168 struct hlist_node list_pte_long;
169 struct hlist_node list_vpte;
170 struct hlist_node list_vpte_long;
171 struct rcu_head rcu_head;
175 struct kvmppc_pte pte;
178 struct kvm_vcpu_arch {
181 #ifdef CONFIG_PPC_BOOK3S
185 ulong trampoline_lowmem;
186 ulong trampoline_enter;
187 ulong highmem_handler;
189 ulong host_paca_phys;
190 struct kvmppc_mmu mmu;
198 #ifdef CONFIG_ALTIVEC
207 #ifdef CONFIG_PPC_BOOK3S
208 /* For Gekko paired singles */
221 #ifdef CONFIG_PPC_BOOK3S
224 ulong guest_owned_ext;
226 u32 vrsave; /* also USPRG0 */
261 #ifdef CONFIG_KVM_EXIT_TIMING
262 struct mutex exit_timing_lock;
263 struct kvmppc_exit_timing timing_exit;
264 struct kvmppc_exit_timing timing_last_enter;
266 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
267 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
268 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
269 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
270 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
271 u64 timing_last_exit;
272 struct dentry *debugfs_exit_timing;
282 gpa_t paddr_accessed;
284 u8 io_gpr; /* GPR used as IO source/target */
285 u8 mmio_is_bigendian;
292 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
294 struct hrtimer dec_timer;
295 struct tasklet_struct tasklet;
297 unsigned long pending_exceptions;
298 struct kvm_vcpu_arch_shared *shared;
299 unsigned long magic_page_pa; /* phys addr to map the magic page to */
300 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
302 #ifdef CONFIG_PPC_BOOK3S
303 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
304 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
305 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
306 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
307 int hpte_cache_count;
312 #endif /* __POWERPC_KVM_HOST_H__ */