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 #ifdef CONFIG_KVM_MMIO
37 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
40 /* We don't currently support large pages. */
41 #define KVM_HPAGE_GFN_SHIFT(x) 0
42 #define KVM_NR_PAGE_SIZES 1
43 #define KVM_PAGES_PER_HPAGE(x) (1UL<<31)
45 #define HPTEG_CACHE_NUM (1 << 15)
46 #define HPTEG_HASH_BITS_PTE 13
47 #define HPTEG_HASH_BITS_PTE_LONG 12
48 #define HPTEG_HASH_BITS_VPTE 13
49 #define HPTEG_HASH_BITS_VPTE_LONG 5
50 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
51 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG)
52 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
53 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
55 /* Physical Address Mask - allowed range of real mode RAM access */
56 #define KVM_PAM 0x0fffffffffffffffULL
70 struct kvm_vcpu_stat {
76 /* Account for special types of light exits: */
77 u32 itlb_real_miss_exits;
78 u32 itlb_virt_miss_exits;
79 u32 dtlb_real_miss_exits;
80 u32 dtlb_virt_miss_exits;
84 u32 emulated_inst_exits;
88 #ifdef CONFIG_PPC_BOOK3S
101 enum kvm_exit_types {
105 ITLB_REAL_MISS_EXITS,
106 ITLB_VIRT_MISS_EXITS,
107 DTLB_REAL_MISS_EXITS,
108 DTLB_VIRT_MISS_EXITS,
113 EMULATED_MTMSRWE_EXITS,
114 EMULATED_WRTEE_EXITS,
115 EMULATED_MTSPR_EXITS,
116 EMULATED_MFSPR_EXITS,
117 EMULATED_MTMSR_EXITS,
118 EMULATED_MFMSR_EXITS,
119 EMULATED_TLBSX_EXITS,
120 EMULATED_TLBWE_EXITS,
129 __NUMBER_OF_KVM_EXIT_TYPES
132 /* allow access to big endian 32bit upper/lower parts and 64bit var */
133 struct kvmppc_exit_timing {
142 struct kvmppc_pginfo {
148 #ifdef CONFIG_KVM_BOOK3S_64_HV
149 unsigned long hpt_virt;
150 unsigned long ram_npages;
151 unsigned long ram_psize;
152 unsigned long ram_porder;
153 struct kvmppc_pginfo *ram_pginfo;
155 unsigned int host_lpid;
156 unsigned long host_lpcr;
158 unsigned long host_sdr1;
160 unsigned short last_vcpu[NR_CPUS];
161 #endif /* CONFIG_KVM_BOOK3S_64_HV */
170 bool may_execute : 1;
175 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
176 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
177 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
178 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
179 void (*slbia)(struct kvm_vcpu *vcpu);
181 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
182 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
183 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data);
184 void (*reset_msr)(struct kvm_vcpu *vcpu);
185 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
186 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
187 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
188 bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
200 bool large : 1; /* PTEs are 16MB */
201 bool tb : 1; /* 1TB segment */
205 struct kvm_vcpu_arch {
208 #ifdef CONFIG_PPC_BOOK3S
212 ulong trampoline_lowmem;
213 ulong trampoline_enter;
214 ulong highmem_handler;
216 ulong host_paca_phys;
217 struct kvmppc_slb slb[64];
218 int slb_max; /* 1 + index of last valid entry in slb[] */
219 int slb_nr; /* total number of entries in SLB */
220 struct kvmppc_mmu mmu;
234 #ifdef CONFIG_ALTIVEC
243 #ifdef CONFIG_PPC_BOOK3S
244 /* For Gekko paired singles */
255 #ifdef CONFIG_PPC_BOOK3S
257 ulong guest_owned_ext;
267 u32 vrsave; /* also USPRG0 */
307 #ifdef CONFIG_KVM_EXIT_TIMING
308 struct mutex exit_timing_lock;
309 struct kvmppc_exit_timing timing_exit;
310 struct kvmppc_exit_timing timing_last_enter;
312 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
313 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
314 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
315 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
316 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
317 u64 timing_last_exit;
318 struct dentry *debugfs_exit_timing;
321 #ifdef CONFIG_PPC_BOOK3S
332 gpa_t paddr_accessed;
334 u8 io_gpr; /* GPR used as IO source/target */
335 u8 mmio_is_bigendian;
343 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
345 struct hrtimer dec_timer;
346 struct tasklet_struct tasklet;
349 unsigned long pending_exceptions;
356 struct slb_shadow *slb_shadow;
360 struct kvm_vcpu_arch_shared *shared;
361 unsigned long magic_page_pa; /* phys addr to map the magic page to */
362 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
364 #ifdef CONFIG_KVM_BOOK3S_64_HV
365 struct kvm_vcpu_arch_shared shregs;
369 #endif /* __POWERPC_KVM_HOST_H__ */