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bc8080cb | 1 | /* |
b71c9e2f | 2 | * Copyright (C) 2008-2013 Freescale Semiconductor, Inc. All rights reserved. |
bc8080cb HB |
3 | * |
4 | * Author: Yu Liu, yu.liu@freescale.com | |
73196cd3 | 5 | * Scott Wood, scottwood@freescale.com |
4f802fe9 | 6 | * Ashish Kalra, ashish.kalra@freescale.com |
73196cd3 | 7 | * Varun Sethi, varun.sethi@freescale.com |
b71c9e2f | 8 | * Alexander Graf, agraf@suse.de |
bc8080cb HB |
9 | * |
10 | * Description: | |
11 | * This file is based on arch/powerpc/kvm/44x_tlb.c, | |
12 | * by Hollis Blanchard <hollisb@us.ibm.com>. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License, version 2, as | |
16 | * published by the Free Software Foundation. | |
17 | */ | |
18 | ||
0164c0f0 | 19 | #include <linux/kernel.h> |
bc8080cb | 20 | #include <linux/types.h> |
5a0e3ad6 | 21 | #include <linux/slab.h> |
bc8080cb HB |
22 | #include <linux/string.h> |
23 | #include <linux/kvm.h> | |
24 | #include <linux/kvm_host.h> | |
25 | #include <linux/highmem.h> | |
dc83b8bc SW |
26 | #include <linux/log2.h> |
27 | #include <linux/uaccess.h> | |
28 | #include <linux/sched.h> | |
29 | #include <linux/rwsem.h> | |
30 | #include <linux/vmalloc.h> | |
95325e6b | 31 | #include <linux/hugetlb.h> |
bc8080cb | 32 | #include <asm/kvm_ppc.h> |
bc8080cb | 33 | |
29a5a6f9 | 34 | #include "e500.h" |
dba291f2 | 35 | #include "trace_booke.h" |
49ea0695 | 36 | #include "timing.h" |
b71c9e2f | 37 | #include "e500_mmu_host.h" |
bc8080cb | 38 | |
0164c0f0 | 39 | static inline unsigned int gtlb0_get_next_victim( |
bc8080cb HB |
40 | struct kvmppc_vcpu_e500 *vcpu_e500) |
41 | { | |
42 | unsigned int victim; | |
43 | ||
08b7fa92 | 44 | victim = vcpu_e500->gtlb_nv[0]++; |
dc83b8bc | 45 | if (unlikely(vcpu_e500->gtlb_nv[0] >= vcpu_e500->gtlb_params[0].ways)) |
08b7fa92 | 46 | vcpu_e500->gtlb_nv[0] = 0; |
bc8080cb HB |
47 | |
48 | return victim; | |
49 | } | |
50 | ||
0164c0f0 SW |
51 | static int tlb0_set_base(gva_t addr, int sets, int ways) |
52 | { | |
53 | int set_base; | |
54 | ||
55 | set_base = (addr >> PAGE_SHIFT) & (sets - 1); | |
56 | set_base *= ways; | |
57 | ||
58 | return set_base; | |
59 | } | |
60 | ||
61 | static int gtlb0_set_base(struct kvmppc_vcpu_e500 *vcpu_e500, gva_t addr) | |
62 | { | |
dc83b8bc SW |
63 | return tlb0_set_base(addr, vcpu_e500->gtlb_params[0].sets, |
64 | vcpu_e500->gtlb_params[0].ways); | |
0164c0f0 SW |
65 | } |
66 | ||
b5904972 | 67 | static unsigned int get_tlb_esel(struct kvm_vcpu *vcpu, int tlbsel) |
0164c0f0 | 68 | { |
b5904972 SW |
69 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); |
70 | int esel = get_tlb_esel_bit(vcpu); | |
0164c0f0 SW |
71 | |
72 | if (tlbsel == 0) { | |
dc83b8bc | 73 | esel &= vcpu_e500->gtlb_params[0].ways - 1; |
b5904972 | 74 | esel += gtlb0_set_base(vcpu_e500, vcpu->arch.shared->mas2); |
0164c0f0 | 75 | } else { |
dc83b8bc | 76 | esel &= vcpu_e500->gtlb_params[tlbsel].entries - 1; |
0164c0f0 SW |
77 | } |
78 | ||
79 | return esel; | |
80 | } | |
81 | ||
bc8080cb HB |
82 | /* Search the guest TLB for a matching entry. */ |
83 | static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500, | |
84 | gva_t eaddr, int tlbsel, unsigned int pid, int as) | |
85 | { | |
dc83b8bc SW |
86 | int size = vcpu_e500->gtlb_params[tlbsel].entries; |
87 | unsigned int set_base, offset; | |
bc8080cb HB |
88 | int i; |
89 | ||
1aee47a0 | 90 | if (tlbsel == 0) { |
0164c0f0 | 91 | set_base = gtlb0_set_base(vcpu_e500, eaddr); |
dc83b8bc | 92 | size = vcpu_e500->gtlb_params[0].ways; |
1aee47a0 | 93 | } else { |
cc902ad4 BB |
94 | if (eaddr < vcpu_e500->tlb1_min_eaddr || |
95 | eaddr > vcpu_e500->tlb1_max_eaddr) | |
96 | return -1; | |
1aee47a0 SW |
97 | set_base = 0; |
98 | } | |
99 | ||
dc83b8bc SW |
100 | offset = vcpu_e500->gtlb_offset[tlbsel]; |
101 | ||
1aee47a0 | 102 | for (i = 0; i < size; i++) { |
dc83b8bc SW |
103 | struct kvm_book3e_206_tlb_entry *tlbe = |
104 | &vcpu_e500->gtlb_arch[offset + set_base + i]; | |
bc8080cb HB |
105 | unsigned int tid; |
106 | ||
107 | if (eaddr < get_tlb_eaddr(tlbe)) | |
108 | continue; | |
109 | ||
110 | if (eaddr > get_tlb_end(tlbe)) | |
111 | continue; | |
112 | ||
113 | tid = get_tlb_tid(tlbe); | |
114 | if (tid && (tid != pid)) | |
115 | continue; | |
116 | ||
117 | if (!get_tlb_v(tlbe)) | |
118 | continue; | |
119 | ||
120 | if (get_tlb_ts(tlbe) != as && as != -1) | |
121 | continue; | |
122 | ||
1aee47a0 | 123 | return set_base + i; |
bc8080cb HB |
124 | } |
125 | ||
126 | return -1; | |
127 | } | |
128 | ||
bc8080cb | 129 | static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu, |
70713fe3 | 130 | gva_t eaddr, int as) |
bc8080cb HB |
131 | { |
132 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
8fdd21a2 | 133 | unsigned int victim, tsized; |
bc8080cb HB |
134 | int tlbsel; |
135 | ||
fb2838d4 | 136 | /* since we only have two TLBs, only lower bit is used. */ |
b5904972 | 137 | tlbsel = (vcpu->arch.shared->mas4 >> 28) & 0x1; |
0164c0f0 | 138 | victim = (tlbsel == 0) ? gtlb0_get_next_victim(vcpu_e500) : 0; |
b5904972 | 139 | tsized = (vcpu->arch.shared->mas4 >> 7) & 0x1f; |
bc8080cb | 140 | |
b5904972 | 141 | vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim) |
08b7fa92 | 142 | | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]); |
b5904972 | 143 | vcpu->arch.shared->mas1 = MAS1_VALID | (as ? MAS1_TS : 0) |
8fdd21a2 | 144 | | MAS1_TID(get_tlbmiss_tid(vcpu)) |
bc8080cb | 145 | | MAS1_TSIZE(tsized); |
b5904972 SW |
146 | vcpu->arch.shared->mas2 = (eaddr & MAS2_EPN) |
147 | | (vcpu->arch.shared->mas4 & MAS2_ATTRIB_MASK); | |
148 | vcpu->arch.shared->mas7_3 &= MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3; | |
149 | vcpu->arch.shared->mas6 = (vcpu->arch.shared->mas6 & MAS6_SPID1) | |
bc8080cb HB |
150 | | (get_cur_pid(vcpu) << 16) |
151 | | (as ? MAS6_SAS : 0); | |
bc8080cb HB |
152 | } |
153 | ||
cc902ad4 BB |
154 | static void kvmppc_recalc_tlb1map_range(struct kvmppc_vcpu_e500 *vcpu_e500) |
155 | { | |
156 | int size = vcpu_e500->gtlb_params[1].entries; | |
157 | unsigned int offset; | |
158 | gva_t eaddr; | |
159 | int i; | |
160 | ||
161 | vcpu_e500->tlb1_min_eaddr = ~0UL; | |
162 | vcpu_e500->tlb1_max_eaddr = 0; | |
163 | offset = vcpu_e500->gtlb_offset[1]; | |
164 | ||
165 | for (i = 0; i < size; i++) { | |
166 | struct kvm_book3e_206_tlb_entry *tlbe = | |
167 | &vcpu_e500->gtlb_arch[offset + i]; | |
168 | ||
169 | if (!get_tlb_v(tlbe)) | |
170 | continue; | |
171 | ||
172 | eaddr = get_tlb_eaddr(tlbe); | |
173 | vcpu_e500->tlb1_min_eaddr = | |
174 | min(vcpu_e500->tlb1_min_eaddr, eaddr); | |
175 | ||
176 | eaddr = get_tlb_end(tlbe); | |
177 | vcpu_e500->tlb1_max_eaddr = | |
178 | max(vcpu_e500->tlb1_max_eaddr, eaddr); | |
179 | } | |
180 | } | |
181 | ||
182 | static int kvmppc_need_recalc_tlb1map_range(struct kvmppc_vcpu_e500 *vcpu_e500, | |
183 | struct kvm_book3e_206_tlb_entry *gtlbe) | |
184 | { | |
185 | unsigned long start, end, size; | |
186 | ||
187 | size = get_tlb_bytes(gtlbe); | |
188 | start = get_tlb_eaddr(gtlbe) & ~(size - 1); | |
189 | end = start + size - 1; | |
190 | ||
191 | return vcpu_e500->tlb1_min_eaddr == start || | |
192 | vcpu_e500->tlb1_max_eaddr == end; | |
193 | } | |
194 | ||
195 | /* This function is supposed to be called for a adding a new valid tlb entry */ | |
196 | static void kvmppc_set_tlb1map_range(struct kvm_vcpu *vcpu, | |
197 | struct kvm_book3e_206_tlb_entry *gtlbe) | |
198 | { | |
199 | unsigned long start, end, size; | |
200 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
201 | ||
202 | if (!get_tlb_v(gtlbe)) | |
203 | return; | |
204 | ||
205 | size = get_tlb_bytes(gtlbe); | |
206 | start = get_tlb_eaddr(gtlbe) & ~(size - 1); | |
207 | end = start + size - 1; | |
208 | ||
209 | vcpu_e500->tlb1_min_eaddr = min(vcpu_e500->tlb1_min_eaddr, start); | |
210 | vcpu_e500->tlb1_max_eaddr = max(vcpu_e500->tlb1_max_eaddr, end); | |
211 | } | |
212 | ||
08b7fa92 LY |
213 | static inline int kvmppc_e500_gtlbe_invalidate( |
214 | struct kvmppc_vcpu_e500 *vcpu_e500, | |
215 | int tlbsel, int esel) | |
bc8080cb | 216 | { |
dc83b8bc SW |
217 | struct kvm_book3e_206_tlb_entry *gtlbe = |
218 | get_entry(vcpu_e500, tlbsel, esel); | |
bc8080cb HB |
219 | |
220 | if (unlikely(get_tlb_iprot(gtlbe))) | |
221 | return -1; | |
222 | ||
cc902ad4 BB |
223 | if (tlbsel == 1 && kvmppc_need_recalc_tlb1map_range(vcpu_e500, gtlbe)) |
224 | kvmppc_recalc_tlb1map_range(vcpu_e500); | |
225 | ||
bc8080cb HB |
226 | gtlbe->mas1 = 0; |
227 | ||
228 | return 0; | |
229 | } | |
230 | ||
b0a1835d LY |
231 | int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value) |
232 | { | |
233 | int esel; | |
234 | ||
235 | if (value & MMUCSR0_TLB0FI) | |
dc83b8bc | 236 | for (esel = 0; esel < vcpu_e500->gtlb_params[0].entries; esel++) |
b0a1835d LY |
237 | kvmppc_e500_gtlbe_invalidate(vcpu_e500, 0, esel); |
238 | if (value & MMUCSR0_TLB1FI) | |
dc83b8bc | 239 | for (esel = 0; esel < vcpu_e500->gtlb_params[1].entries; esel++) |
b0a1835d LY |
240 | kvmppc_e500_gtlbe_invalidate(vcpu_e500, 1, esel); |
241 | ||
b9e3e208 AG |
242 | /* Invalidate all host shadow mappings */ |
243 | kvmppc_core_flush_tlb(&vcpu_e500->vcpu); | |
b0a1835d LY |
244 | |
245 | return EMULATE_DONE; | |
246 | } | |
247 | ||
7cdd7a95 | 248 | int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, gva_t ea) |
bc8080cb HB |
249 | { |
250 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
251 | unsigned int ia; | |
252 | int esel, tlbsel; | |
bc8080cb HB |
253 | |
254 | ia = (ea >> 2) & 0x1; | |
255 | ||
fb2838d4 | 256 | /* since we only have two TLBs, only lower bit is used. */ |
bc8080cb HB |
257 | tlbsel = (ea >> 3) & 0x1; |
258 | ||
259 | if (ia) { | |
260 | /* invalidate all entries */ | |
dc83b8bc SW |
261 | for (esel = 0; esel < vcpu_e500->gtlb_params[tlbsel].entries; |
262 | esel++) | |
bc8080cb HB |
263 | kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel); |
264 | } else { | |
265 | ea &= 0xfffff000; | |
266 | esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, | |
267 | get_cur_pid(vcpu), -1); | |
268 | if (esel >= 0) | |
269 | kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel); | |
270 | } | |
271 | ||
b9e3e208 AG |
272 | /* Invalidate all host shadow mappings */ |
273 | kvmppc_core_flush_tlb(&vcpu_e500->vcpu); | |
bc8080cb HB |
274 | |
275 | return EMULATE_DONE; | |
276 | } | |
277 | ||
ab9fc405 | 278 | static void tlbilx_all(struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel, |
7cdd7a95 | 279 | int pid, int type) |
ab9fc405 SW |
280 | { |
281 | struct kvm_book3e_206_tlb_entry *tlbe; | |
282 | int tid, esel; | |
283 | ||
284 | /* invalidate all entries */ | |
285 | for (esel = 0; esel < vcpu_e500->gtlb_params[tlbsel].entries; esel++) { | |
286 | tlbe = get_entry(vcpu_e500, tlbsel, esel); | |
287 | tid = get_tlb_tid(tlbe); | |
7cdd7a95 | 288 | if (type == 0 || tid == pid) { |
ab9fc405 SW |
289 | inval_gtlbe_on_host(vcpu_e500, tlbsel, esel); |
290 | kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel); | |
291 | } | |
292 | } | |
293 | } | |
294 | ||
295 | static void tlbilx_one(struct kvmppc_vcpu_e500 *vcpu_e500, int pid, | |
7cdd7a95 | 296 | gva_t ea) |
ab9fc405 SW |
297 | { |
298 | int tlbsel, esel; | |
ab9fc405 SW |
299 | |
300 | for (tlbsel = 0; tlbsel < 2; tlbsel++) { | |
301 | esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, -1); | |
302 | if (esel >= 0) { | |
303 | inval_gtlbe_on_host(vcpu_e500, tlbsel, esel); | |
304 | kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel); | |
305 | break; | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
7cdd7a95 | 310 | int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int type, gva_t ea) |
ab9fc405 SW |
311 | { |
312 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
313 | int pid = get_cur_spid(vcpu); | |
314 | ||
7cdd7a95 MC |
315 | if (type == 0 || type == 1) { |
316 | tlbilx_all(vcpu_e500, 0, pid, type); | |
317 | tlbilx_all(vcpu_e500, 1, pid, type); | |
318 | } else if (type == 3) { | |
319 | tlbilx_one(vcpu_e500, pid, ea); | |
ab9fc405 SW |
320 | } |
321 | ||
322 | return EMULATE_DONE; | |
323 | } | |
324 | ||
bc8080cb HB |
325 | int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu) |
326 | { | |
327 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
328 | int tlbsel, esel; | |
dc83b8bc | 329 | struct kvm_book3e_206_tlb_entry *gtlbe; |
bc8080cb | 330 | |
b5904972 SW |
331 | tlbsel = get_tlb_tlbsel(vcpu); |
332 | esel = get_tlb_esel(vcpu, tlbsel); | |
bc8080cb | 333 | |
dc83b8bc | 334 | gtlbe = get_entry(vcpu_e500, tlbsel, esel); |
b5904972 SW |
335 | vcpu->arch.shared->mas0 &= ~MAS0_NV(~0); |
336 | vcpu->arch.shared->mas0 |= MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]); | |
337 | vcpu->arch.shared->mas1 = gtlbe->mas1; | |
338 | vcpu->arch.shared->mas2 = gtlbe->mas2; | |
339 | vcpu->arch.shared->mas7_3 = gtlbe->mas7_3; | |
bc8080cb HB |
340 | |
341 | return EMULATE_DONE; | |
342 | } | |
343 | ||
7cdd7a95 | 344 | int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, gva_t ea) |
bc8080cb HB |
345 | { |
346 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
b5904972 SW |
347 | int as = !!get_cur_sas(vcpu); |
348 | unsigned int pid = get_cur_spid(vcpu); | |
bc8080cb | 349 | int esel, tlbsel; |
dc83b8bc | 350 | struct kvm_book3e_206_tlb_entry *gtlbe = NULL; |
bc8080cb HB |
351 | |
352 | for (tlbsel = 0; tlbsel < 2; tlbsel++) { | |
353 | esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, as); | |
354 | if (esel >= 0) { | |
dc83b8bc | 355 | gtlbe = get_entry(vcpu_e500, tlbsel, esel); |
bc8080cb HB |
356 | break; |
357 | } | |
358 | } | |
359 | ||
360 | if (gtlbe) { | |
303b7c97 SW |
361 | esel &= vcpu_e500->gtlb_params[tlbsel].ways - 1; |
362 | ||
b5904972 | 363 | vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel) |
08b7fa92 | 364 | | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]); |
b5904972 SW |
365 | vcpu->arch.shared->mas1 = gtlbe->mas1; |
366 | vcpu->arch.shared->mas2 = gtlbe->mas2; | |
367 | vcpu->arch.shared->mas7_3 = gtlbe->mas7_3; | |
bc8080cb HB |
368 | } else { |
369 | int victim; | |
370 | ||
fb2838d4 | 371 | /* since we only have two TLBs, only lower bit is used. */ |
b5904972 | 372 | tlbsel = vcpu->arch.shared->mas4 >> 28 & 0x1; |
0164c0f0 | 373 | victim = (tlbsel == 0) ? gtlb0_get_next_victim(vcpu_e500) : 0; |
bc8080cb | 374 | |
b5904972 SW |
375 | vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel) |
376 | | MAS0_ESEL(victim) | |
08b7fa92 | 377 | | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]); |
b5904972 SW |
378 | vcpu->arch.shared->mas1 = |
379 | (vcpu->arch.shared->mas6 & MAS6_SPID0) | |
380 | | (vcpu->arch.shared->mas6 & (MAS6_SAS ? MAS1_TS : 0)) | |
381 | | (vcpu->arch.shared->mas4 & MAS4_TSIZED(~0)); | |
382 | vcpu->arch.shared->mas2 &= MAS2_EPN; | |
383 | vcpu->arch.shared->mas2 |= vcpu->arch.shared->mas4 & | |
384 | MAS2_ATTRIB_MASK; | |
385 | vcpu->arch.shared->mas7_3 &= MAS3_U0 | MAS3_U1 | | |
386 | MAS3_U2 | MAS3_U3; | |
bc8080cb HB |
387 | } |
388 | ||
49ea0695 | 389 | kvmppc_set_exit_type(vcpu, EMULATED_TLBSX_EXITS); |
bc8080cb HB |
390 | return EMULATE_DONE; |
391 | } | |
392 | ||
393 | int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu) | |
394 | { | |
395 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
9d98b3ff AG |
396 | struct kvm_book3e_206_tlb_entry *gtlbe; |
397 | int tlbsel, esel; | |
cc902ad4 | 398 | int recal = 0; |
f1e89028 | 399 | int idx; |
bc8080cb | 400 | |
b5904972 SW |
401 | tlbsel = get_tlb_tlbsel(vcpu); |
402 | esel = get_tlb_esel(vcpu, tlbsel); | |
bc8080cb | 403 | |
dc83b8bc | 404 | gtlbe = get_entry(vcpu_e500, tlbsel, esel); |
bc8080cb | 405 | |
cc902ad4 | 406 | if (get_tlb_v(gtlbe)) { |
0164c0f0 | 407 | inval_gtlbe_on_host(vcpu_e500, tlbsel, esel); |
cc902ad4 BB |
408 | if ((tlbsel == 1) && |
409 | kvmppc_need_recalc_tlb1map_range(vcpu_e500, gtlbe)) | |
410 | recal = 1; | |
411 | } | |
bc8080cb | 412 | |
b5904972 SW |
413 | gtlbe->mas1 = vcpu->arch.shared->mas1; |
414 | gtlbe->mas2 = vcpu->arch.shared->mas2; | |
9e2fa646 MC |
415 | if (!(vcpu->arch.shared->msr & MSR_CM)) |
416 | gtlbe->mas2 &= 0xffffffffUL; | |
b5904972 | 417 | gtlbe->mas7_3 = vcpu->arch.shared->mas7_3; |
bc8080cb | 418 | |
d37b1a03 LY |
419 | trace_kvm_booke206_gtlb_write(vcpu->arch.shared->mas0, gtlbe->mas1, |
420 | gtlbe->mas2, gtlbe->mas7_3); | |
bc8080cb | 421 | |
cc902ad4 BB |
422 | if (tlbsel == 1) { |
423 | /* | |
424 | * If a valid tlb1 entry is overwritten then recalculate the | |
425 | * min/max TLB1 map address range otherwise no need to look | |
426 | * in tlb1 array. | |
427 | */ | |
428 | if (recal) | |
429 | kvmppc_recalc_tlb1map_range(vcpu_e500); | |
430 | else | |
431 | kvmppc_set_tlb1map_range(vcpu, gtlbe); | |
432 | } | |
433 | ||
f1e89028 SW |
434 | idx = srcu_read_lock(&vcpu->kvm->srcu); |
435 | ||
bc8080cb HB |
436 | /* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */ |
437 | if (tlbe_is_host_safe(vcpu, gtlbe)) { | |
9d98b3ff AG |
438 | u64 eaddr = get_tlb_eaddr(gtlbe); |
439 | u64 raddr = get_tlb_raddr(gtlbe); | |
08b7fa92 | 440 | |
9d98b3ff | 441 | if (tlbsel == 0) { |
bc8080cb | 442 | gtlbe->mas1 &= ~MAS1_TSIZE(~0); |
0cfb50e5 | 443 | gtlbe->mas1 |= MAS1_TSIZE(BOOK3E_PAGESZ_4K); |
bc8080cb | 444 | } |
3bf3cdcc | 445 | |
9d98b3ff AG |
446 | /* Premap the faulting page */ |
447 | kvmppc_mmu_map(vcpu, eaddr, raddr, index_of(tlbsel, esel)); | |
bc8080cb HB |
448 | } |
449 | ||
f1e89028 SW |
450 | srcu_read_unlock(&vcpu->kvm->srcu, idx); |
451 | ||
49ea0695 | 452 | kvmppc_set_exit_type(vcpu, EMULATED_TLBWE_EXITS); |
bc8080cb HB |
453 | return EMULATE_DONE; |
454 | } | |
455 | ||
8fdd21a2 SW |
456 | static int kvmppc_e500_tlb_search(struct kvm_vcpu *vcpu, |
457 | gva_t eaddr, unsigned int pid, int as) | |
458 | { | |
459 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
460 | int esel, tlbsel; | |
461 | ||
462 | for (tlbsel = 0; tlbsel < 2; tlbsel++) { | |
463 | esel = kvmppc_e500_tlb_index(vcpu_e500, eaddr, tlbsel, pid, as); | |
464 | if (esel >= 0) | |
465 | return index_of(tlbsel, esel); | |
466 | } | |
467 | ||
468 | return -1; | |
469 | } | |
470 | ||
471 | /* 'linear_address' is actually an encoding of AS|PID|EADDR . */ | |
472 | int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, | |
473 | struct kvm_translation *tr) | |
474 | { | |
475 | int index; | |
476 | gva_t eaddr; | |
477 | u8 pid; | |
478 | u8 as; | |
479 | ||
480 | eaddr = tr->linear_address; | |
481 | pid = (tr->linear_address >> 32) & 0xff; | |
482 | as = (tr->linear_address >> 40) & 0x1; | |
483 | ||
484 | index = kvmppc_e500_tlb_search(vcpu, eaddr, pid, as); | |
485 | if (index < 0) { | |
486 | tr->valid = 0; | |
487 | return 0; | |
488 | } | |
489 | ||
490 | tr->physical_address = kvmppc_mmu_xlate(vcpu, index, eaddr); | |
491 | /* XXX what does "writeable" and "usermode" even mean? */ | |
492 | tr->valid = 1; | |
493 | ||
494 | return 0; | |
495 | } | |
496 | ||
497 | ||
bc8080cb HB |
498 | int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr) |
499 | { | |
666e7252 | 500 | unsigned int as = !!(vcpu->arch.shared->msr & MSR_IS); |
bc8080cb HB |
501 | |
502 | return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as); | |
503 | } | |
504 | ||
505 | int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr) | |
506 | { | |
666e7252 | 507 | unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS); |
bc8080cb HB |
508 | |
509 | return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as); | |
510 | } | |
511 | ||
512 | void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu) | |
513 | { | |
666e7252 | 514 | unsigned int as = !!(vcpu->arch.shared->msr & MSR_IS); |
bc8080cb HB |
515 | |
516 | kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.pc, as); | |
517 | } | |
518 | ||
519 | void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu) | |
520 | { | |
666e7252 | 521 | unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS); |
bc8080cb HB |
522 | |
523 | kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.fault_dear, as); | |
524 | } | |
525 | ||
526 | gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index, | |
527 | gva_t eaddr) | |
528 | { | |
529 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
dc83b8bc SW |
530 | struct kvm_book3e_206_tlb_entry *gtlbe; |
531 | u64 pgmask; | |
532 | ||
533 | gtlbe = get_entry(vcpu_e500, tlbsel_of(index), esel_of(index)); | |
534 | pgmask = get_tlb_bytes(gtlbe) - 1; | |
bc8080cb HB |
535 | |
536 | return get_tlb_raddr(gtlbe) | (eaddr & pgmask); | |
537 | } | |
538 | ||
3a167bea | 539 | void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu) |
bc8080cb | 540 | { |
bc8080cb HB |
541 | } |
542 | ||
862d31f7 AG |
543 | /*****************************************/ |
544 | ||
dc83b8bc SW |
545 | static void free_gtlb(struct kvmppc_vcpu_e500 *vcpu_e500) |
546 | { | |
547 | int i; | |
548 | ||
483ba97c | 549 | kvmppc_core_flush_tlb(&vcpu_e500->vcpu); |
4f802fe9 | 550 | kfree(vcpu_e500->g2h_tlb1_map); |
dc83b8bc SW |
551 | kfree(vcpu_e500->gtlb_priv[0]); |
552 | kfree(vcpu_e500->gtlb_priv[1]); | |
553 | ||
554 | if (vcpu_e500->shared_tlb_pages) { | |
555 | vfree((void *)(round_down((uintptr_t)vcpu_e500->gtlb_arch, | |
556 | PAGE_SIZE))); | |
557 | ||
558 | for (i = 0; i < vcpu_e500->num_shared_tlb_pages; i++) { | |
559 | set_page_dirty_lock(vcpu_e500->shared_tlb_pages[i]); | |
560 | put_page(vcpu_e500->shared_tlb_pages[i]); | |
561 | } | |
562 | ||
563 | vcpu_e500->num_shared_tlb_pages = 0; | |
adbb48a8 SW |
564 | |
565 | kfree(vcpu_e500->shared_tlb_pages); | |
dc83b8bc SW |
566 | vcpu_e500->shared_tlb_pages = NULL; |
567 | } else { | |
568 | kfree(vcpu_e500->gtlb_arch); | |
569 | } | |
570 | ||
571 | vcpu_e500->gtlb_arch = NULL; | |
572 | } | |
573 | ||
8fdd21a2 SW |
574 | void kvmppc_get_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) |
575 | { | |
576 | sregs->u.e.mas0 = vcpu->arch.shared->mas0; | |
577 | sregs->u.e.mas1 = vcpu->arch.shared->mas1; | |
578 | sregs->u.e.mas2 = vcpu->arch.shared->mas2; | |
579 | sregs->u.e.mas7_3 = vcpu->arch.shared->mas7_3; | |
580 | sregs->u.e.mas4 = vcpu->arch.shared->mas4; | |
581 | sregs->u.e.mas6 = vcpu->arch.shared->mas6; | |
582 | ||
583 | sregs->u.e.mmucfg = vcpu->arch.mmucfg; | |
584 | sregs->u.e.tlbcfg[0] = vcpu->arch.tlbcfg[0]; | |
585 | sregs->u.e.tlbcfg[1] = vcpu->arch.tlbcfg[1]; | |
586 | sregs->u.e.tlbcfg[2] = 0; | |
587 | sregs->u.e.tlbcfg[3] = 0; | |
588 | } | |
589 | ||
590 | int kvmppc_set_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) | |
591 | { | |
592 | if (sregs->u.e.features & KVM_SREGS_E_ARCH206_MMU) { | |
593 | vcpu->arch.shared->mas0 = sregs->u.e.mas0; | |
594 | vcpu->arch.shared->mas1 = sregs->u.e.mas1; | |
595 | vcpu->arch.shared->mas2 = sregs->u.e.mas2; | |
596 | vcpu->arch.shared->mas7_3 = sregs->u.e.mas7_3; | |
597 | vcpu->arch.shared->mas4 = sregs->u.e.mas4; | |
598 | vcpu->arch.shared->mas6 = sregs->u.e.mas6; | |
599 | } | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
a85d2aa2 MC |
604 | int kvmppc_get_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id, |
605 | union kvmppc_one_reg *val) | |
606 | { | |
607 | int r = 0; | |
608 | long int i; | |
609 | ||
610 | switch (id) { | |
611 | case KVM_REG_PPC_MAS0: | |
612 | *val = get_reg_val(id, vcpu->arch.shared->mas0); | |
613 | break; | |
614 | case KVM_REG_PPC_MAS1: | |
615 | *val = get_reg_val(id, vcpu->arch.shared->mas1); | |
616 | break; | |
617 | case KVM_REG_PPC_MAS2: | |
618 | *val = get_reg_val(id, vcpu->arch.shared->mas2); | |
619 | break; | |
620 | case KVM_REG_PPC_MAS7_3: | |
621 | *val = get_reg_val(id, vcpu->arch.shared->mas7_3); | |
622 | break; | |
623 | case KVM_REG_PPC_MAS4: | |
624 | *val = get_reg_val(id, vcpu->arch.shared->mas4); | |
625 | break; | |
626 | case KVM_REG_PPC_MAS6: | |
627 | *val = get_reg_val(id, vcpu->arch.shared->mas6); | |
628 | break; | |
629 | case KVM_REG_PPC_MMUCFG: | |
630 | *val = get_reg_val(id, vcpu->arch.mmucfg); | |
631 | break; | |
9a6061d7 MC |
632 | case KVM_REG_PPC_EPTCFG: |
633 | *val = get_reg_val(id, vcpu->arch.eptcfg); | |
634 | break; | |
a85d2aa2 MC |
635 | case KVM_REG_PPC_TLB0CFG: |
636 | case KVM_REG_PPC_TLB1CFG: | |
637 | case KVM_REG_PPC_TLB2CFG: | |
638 | case KVM_REG_PPC_TLB3CFG: | |
639 | i = id - KVM_REG_PPC_TLB0CFG; | |
640 | *val = get_reg_val(id, vcpu->arch.tlbcfg[i]); | |
641 | break; | |
307d9008 MC |
642 | case KVM_REG_PPC_TLB0PS: |
643 | case KVM_REG_PPC_TLB1PS: | |
644 | case KVM_REG_PPC_TLB2PS: | |
645 | case KVM_REG_PPC_TLB3PS: | |
646 | i = id - KVM_REG_PPC_TLB0PS; | |
647 | *val = get_reg_val(id, vcpu->arch.tlbps[i]); | |
648 | break; | |
a85d2aa2 MC |
649 | default: |
650 | r = -EINVAL; | |
651 | break; | |
652 | } | |
653 | ||
654 | return r; | |
655 | } | |
656 | ||
657 | int kvmppc_set_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id, | |
658 | union kvmppc_one_reg *val) | |
659 | { | |
660 | int r = 0; | |
661 | long int i; | |
662 | ||
663 | switch (id) { | |
664 | case KVM_REG_PPC_MAS0: | |
665 | vcpu->arch.shared->mas0 = set_reg_val(id, *val); | |
666 | break; | |
667 | case KVM_REG_PPC_MAS1: | |
668 | vcpu->arch.shared->mas1 = set_reg_val(id, *val); | |
669 | break; | |
670 | case KVM_REG_PPC_MAS2: | |
671 | vcpu->arch.shared->mas2 = set_reg_val(id, *val); | |
672 | break; | |
673 | case KVM_REG_PPC_MAS7_3: | |
674 | vcpu->arch.shared->mas7_3 = set_reg_val(id, *val); | |
675 | break; | |
676 | case KVM_REG_PPC_MAS4: | |
677 | vcpu->arch.shared->mas4 = set_reg_val(id, *val); | |
678 | break; | |
679 | case KVM_REG_PPC_MAS6: | |
680 | vcpu->arch.shared->mas6 = set_reg_val(id, *val); | |
681 | break; | |
682 | /* Only allow MMU registers to be set to the config supported by KVM */ | |
683 | case KVM_REG_PPC_MMUCFG: { | |
684 | u32 reg = set_reg_val(id, *val); | |
685 | if (reg != vcpu->arch.mmucfg) | |
686 | r = -EINVAL; | |
687 | break; | |
688 | } | |
9a6061d7 MC |
689 | case KVM_REG_PPC_EPTCFG: { |
690 | u32 reg = set_reg_val(id, *val); | |
691 | if (reg != vcpu->arch.eptcfg) | |
692 | r = -EINVAL; | |
693 | break; | |
694 | } | |
a85d2aa2 MC |
695 | case KVM_REG_PPC_TLB0CFG: |
696 | case KVM_REG_PPC_TLB1CFG: | |
697 | case KVM_REG_PPC_TLB2CFG: | |
698 | case KVM_REG_PPC_TLB3CFG: { | |
699 | /* MMU geometry (N_ENTRY/ASSOC) can be set only using SW_TLB */ | |
700 | u32 reg = set_reg_val(id, *val); | |
701 | i = id - KVM_REG_PPC_TLB0CFG; | |
702 | if (reg != vcpu->arch.tlbcfg[i]) | |
703 | r = -EINVAL; | |
704 | break; | |
705 | } | |
307d9008 MC |
706 | case KVM_REG_PPC_TLB0PS: |
707 | case KVM_REG_PPC_TLB1PS: | |
708 | case KVM_REG_PPC_TLB2PS: | |
709 | case KVM_REG_PPC_TLB3PS: { | |
710 | u32 reg = set_reg_val(id, *val); | |
711 | i = id - KVM_REG_PPC_TLB0PS; | |
712 | if (reg != vcpu->arch.tlbps[i]) | |
713 | r = -EINVAL; | |
714 | break; | |
715 | } | |
a85d2aa2 MC |
716 | default: |
717 | r = -EINVAL; | |
718 | break; | |
719 | } | |
720 | ||
721 | return r; | |
722 | } | |
723 | ||
8893a188 MC |
724 | static int vcpu_mmu_geometry_update(struct kvm_vcpu *vcpu, |
725 | struct kvm_book3e_206_tlb_params *params) | |
726 | { | |
727 | vcpu->arch.tlbcfg[0] &= ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC); | |
728 | if (params->tlb_sizes[0] <= 2048) | |
729 | vcpu->arch.tlbcfg[0] |= params->tlb_sizes[0]; | |
730 | vcpu->arch.tlbcfg[0] |= params->tlb_ways[0] << TLBnCFG_ASSOC_SHIFT; | |
731 | ||
732 | vcpu->arch.tlbcfg[1] &= ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC); | |
733 | vcpu->arch.tlbcfg[1] |= params->tlb_sizes[1]; | |
734 | vcpu->arch.tlbcfg[1] |= params->tlb_ways[1] << TLBnCFG_ASSOC_SHIFT; | |
735 | return 0; | |
736 | } | |
737 | ||
dc83b8bc SW |
738 | int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, |
739 | struct kvm_config_tlb *cfg) | |
740 | { | |
741 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
742 | struct kvm_book3e_206_tlb_params params; | |
743 | char *virt; | |
744 | struct page **pages; | |
745 | struct tlbe_priv *privs[2] = {}; | |
4f802fe9 | 746 | u64 *g2h_bitmap = NULL; |
dc83b8bc SW |
747 | size_t array_len; |
748 | u32 sets; | |
749 | int num_pages, ret, i; | |
750 | ||
751 | if (cfg->mmu_type != KVM_MMU_FSL_BOOKE_NOHV) | |
752 | return -EINVAL; | |
753 | ||
754 | if (copy_from_user(¶ms, (void __user *)(uintptr_t)cfg->params, | |
755 | sizeof(params))) | |
756 | return -EFAULT; | |
757 | ||
758 | if (params.tlb_sizes[1] > 64) | |
759 | return -EINVAL; | |
760 | if (params.tlb_ways[1] != params.tlb_sizes[1]) | |
761 | return -EINVAL; | |
762 | if (params.tlb_sizes[2] != 0 || params.tlb_sizes[3] != 0) | |
763 | return -EINVAL; | |
764 | if (params.tlb_ways[2] != 0 || params.tlb_ways[3] != 0) | |
765 | return -EINVAL; | |
766 | ||
767 | if (!is_power_of_2(params.tlb_ways[0])) | |
768 | return -EINVAL; | |
769 | ||
770 | sets = params.tlb_sizes[0] >> ilog2(params.tlb_ways[0]); | |
771 | if (!is_power_of_2(sets)) | |
772 | return -EINVAL; | |
773 | ||
774 | array_len = params.tlb_sizes[0] + params.tlb_sizes[1]; | |
775 | array_len *= sizeof(struct kvm_book3e_206_tlb_entry); | |
776 | ||
777 | if (cfg->array_len < array_len) | |
778 | return -EINVAL; | |
779 | ||
780 | num_pages = DIV_ROUND_UP(cfg->array + array_len - 1, PAGE_SIZE) - | |
781 | cfg->array / PAGE_SIZE; | |
782 | pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL); | |
783 | if (!pages) | |
784 | return -ENOMEM; | |
785 | ||
786 | ret = get_user_pages_fast(cfg->array, num_pages, 1, pages); | |
787 | if (ret < 0) | |
788 | goto err_pages; | |
789 | ||
790 | if (ret != num_pages) { | |
791 | num_pages = ret; | |
792 | ret = -EFAULT; | |
793 | goto err_put_page; | |
794 | } | |
795 | ||
796 | virt = vmap(pages, num_pages, VM_MAP, PAGE_KERNEL); | |
12ecd957 JL |
797 | if (!virt) { |
798 | ret = -ENOMEM; | |
dc83b8bc | 799 | goto err_put_page; |
12ecd957 | 800 | } |
dc83b8bc SW |
801 | |
802 | privs[0] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[0], | |
803 | GFP_KERNEL); | |
804 | privs[1] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[1], | |
805 | GFP_KERNEL); | |
806 | ||
12ecd957 JL |
807 | if (!privs[0] || !privs[1]) { |
808 | ret = -ENOMEM; | |
809 | goto err_privs; | |
810 | } | |
dc83b8bc | 811 | |
4f802fe9 SW |
812 | g2h_bitmap = kzalloc(sizeof(u64) * params.tlb_sizes[1], |
813 | GFP_KERNEL); | |
12ecd957 JL |
814 | if (!g2h_bitmap) { |
815 | ret = -ENOMEM; | |
816 | goto err_privs; | |
817 | } | |
4f802fe9 | 818 | |
dc83b8bc SW |
819 | free_gtlb(vcpu_e500); |
820 | ||
821 | vcpu_e500->gtlb_priv[0] = privs[0]; | |
822 | vcpu_e500->gtlb_priv[1] = privs[1]; | |
4f802fe9 | 823 | vcpu_e500->g2h_tlb1_map = g2h_bitmap; |
dc83b8bc SW |
824 | |
825 | vcpu_e500->gtlb_arch = (struct kvm_book3e_206_tlb_entry *) | |
826 | (virt + (cfg->array & (PAGE_SIZE - 1))); | |
827 | ||
828 | vcpu_e500->gtlb_params[0].entries = params.tlb_sizes[0]; | |
829 | vcpu_e500->gtlb_params[1].entries = params.tlb_sizes[1]; | |
830 | ||
831 | vcpu_e500->gtlb_offset[0] = 0; | |
832 | vcpu_e500->gtlb_offset[1] = params.tlb_sizes[0]; | |
833 | ||
8893a188 MC |
834 | /* Update vcpu's MMU geometry based on SW_TLB input */ |
835 | vcpu_mmu_geometry_update(vcpu, ¶ms); | |
dc83b8bc SW |
836 | |
837 | vcpu_e500->shared_tlb_pages = pages; | |
838 | vcpu_e500->num_shared_tlb_pages = num_pages; | |
839 | ||
840 | vcpu_e500->gtlb_params[0].ways = params.tlb_ways[0]; | |
841 | vcpu_e500->gtlb_params[0].sets = sets; | |
842 | ||
843 | vcpu_e500->gtlb_params[1].ways = params.tlb_sizes[1]; | |
844 | vcpu_e500->gtlb_params[1].sets = 1; | |
845 | ||
cc902ad4 | 846 | kvmppc_recalc_tlb1map_range(vcpu_e500); |
dc83b8bc SW |
847 | return 0; |
848 | ||
12ecd957 | 849 | err_privs: |
dc83b8bc SW |
850 | kfree(privs[0]); |
851 | kfree(privs[1]); | |
852 | ||
12ecd957 | 853 | err_put_page: |
dc83b8bc SW |
854 | for (i = 0; i < num_pages; i++) |
855 | put_page(pages[i]); | |
856 | ||
857 | err_pages: | |
858 | kfree(pages); | |
859 | return ret; | |
860 | } | |
861 | ||
862 | int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, | |
863 | struct kvm_dirty_tlb *dirty) | |
864 | { | |
865 | struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); | |
cc902ad4 | 866 | kvmppc_recalc_tlb1map_range(vcpu_e500); |
483ba97c | 867 | kvmppc_core_flush_tlb(vcpu); |
dc83b8bc | 868 | return 0; |
bc8080cb HB |
869 | } |
870 | ||
8893a188 MC |
871 | /* Vcpu's MMU default configuration */ |
872 | static int vcpu_mmu_init(struct kvm_vcpu *vcpu, | |
873 | struct kvmppc_e500_tlb_params *params) | |
874 | { | |
875 | /* Initialize RASIZE, PIDSIZE, NTLBS and MAVN fields with host values*/ | |
876 | vcpu->arch.mmucfg = mfspr(SPRN_MMUCFG) & ~MMUCFG_LPIDSIZE; | |
877 | ||
878 | /* Initialize TLBnCFG fields with host values and SW_TLB geometry*/ | |
879 | vcpu->arch.tlbcfg[0] = mfspr(SPRN_TLB0CFG) & | |
880 | ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC); | |
881 | vcpu->arch.tlbcfg[0] |= params[0].entries; | |
882 | vcpu->arch.tlbcfg[0] |= params[0].ways << TLBnCFG_ASSOC_SHIFT; | |
883 | ||
884 | vcpu->arch.tlbcfg[1] = mfspr(SPRN_TLB1CFG) & | |
885 | ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC); | |
886 | vcpu->arch.tlbcfg[1] |= params[1].entries; | |
887 | vcpu->arch.tlbcfg[1] |= params[1].ways << TLBnCFG_ASSOC_SHIFT; | |
888 | ||
307d9008 MC |
889 | if (has_feature(vcpu, VCPU_FTR_MMU_V2)) { |
890 | vcpu->arch.tlbps[0] = mfspr(SPRN_TLB0PS); | |
891 | vcpu->arch.tlbps[1] = mfspr(SPRN_TLB1PS); | |
9a6061d7 | 892 | |
5b215010 MC |
893 | vcpu->arch.mmucfg &= ~MMUCFG_LRAT; |
894 | ||
9a6061d7 MC |
895 | /* Guest mmu emulation currently doesn't handle E.PT */ |
896 | vcpu->arch.eptcfg = 0; | |
5b215010 MC |
897 | vcpu->arch.tlbcfg[0] &= ~TLBnCFG_PT; |
898 | vcpu->arch.tlbcfg[1] &= ~TLBnCFG_IND; | |
307d9008 MC |
899 | } |
900 | ||
8893a188 MC |
901 | return 0; |
902 | } | |
903 | ||
bc8080cb HB |
904 | int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500) |
905 | { | |
8fdd21a2 | 906 | struct kvm_vcpu *vcpu = &vcpu_e500->vcpu; |
dc83b8bc SW |
907 | int entry_size = sizeof(struct kvm_book3e_206_tlb_entry); |
908 | int entries = KVM_E500_TLB0_SIZE + KVM_E500_TLB1_SIZE; | |
909 | ||
b71c9e2f AG |
910 | if (e500_mmu_host_init(vcpu_e500)) |
911 | goto err; | |
bc8080cb | 912 | |
dc83b8bc SW |
913 | vcpu_e500->gtlb_params[0].entries = KVM_E500_TLB0_SIZE; |
914 | vcpu_e500->gtlb_params[1].entries = KVM_E500_TLB1_SIZE; | |
bc8080cb | 915 | |
dc83b8bc SW |
916 | vcpu_e500->gtlb_params[0].ways = KVM_E500_TLB0_WAY_NUM; |
917 | vcpu_e500->gtlb_params[0].sets = | |
918 | KVM_E500_TLB0_SIZE / KVM_E500_TLB0_WAY_NUM; | |
919 | ||
920 | vcpu_e500->gtlb_params[1].ways = KVM_E500_TLB1_SIZE; | |
921 | vcpu_e500->gtlb_params[1].sets = 1; | |
922 | ||
923 | vcpu_e500->gtlb_arch = kmalloc(entries * entry_size, GFP_KERNEL); | |
924 | if (!vcpu_e500->gtlb_arch) | |
925 | return -ENOMEM; | |
926 | ||
927 | vcpu_e500->gtlb_offset[0] = 0; | |
928 | vcpu_e500->gtlb_offset[1] = KVM_E500_TLB0_SIZE; | |
0164c0f0 | 929 | |
dc83b8bc SW |
930 | vcpu_e500->gtlb_priv[0] = kzalloc(sizeof(struct tlbe_ref) * |
931 | vcpu_e500->gtlb_params[0].entries, | |
932 | GFP_KERNEL); | |
0164c0f0 SW |
933 | if (!vcpu_e500->gtlb_priv[0]) |
934 | goto err; | |
935 | ||
dc83b8bc SW |
936 | vcpu_e500->gtlb_priv[1] = kzalloc(sizeof(struct tlbe_ref) * |
937 | vcpu_e500->gtlb_params[1].entries, | |
938 | GFP_KERNEL); | |
0164c0f0 SW |
939 | if (!vcpu_e500->gtlb_priv[1]) |
940 | goto err; | |
bc8080cb | 941 | |
e400e72f | 942 | vcpu_e500->g2h_tlb1_map = kzalloc(sizeof(u64) * |
4f802fe9 SW |
943 | vcpu_e500->gtlb_params[1].entries, |
944 | GFP_KERNEL); | |
945 | if (!vcpu_e500->g2h_tlb1_map) | |
946 | goto err; | |
947 | ||
8893a188 | 948 | vcpu_mmu_init(vcpu, vcpu_e500->gtlb_params); |
da15bf43 | 949 | |
cc902ad4 | 950 | kvmppc_recalc_tlb1map_range(vcpu_e500); |
bc8080cb HB |
951 | return 0; |
952 | ||
0164c0f0 | 953 | err: |
dc83b8bc | 954 | free_gtlb(vcpu_e500); |
bc8080cb HB |
955 | return -1; |
956 | } | |
957 | ||
958 | void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500) | |
959 | { | |
dc83b8bc | 960 | free_gtlb(vcpu_e500); |
b71c9e2f | 961 | e500_mmu_host_uninit(vcpu_e500); |
bc8080cb | 962 | } |