2 * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
4 * Author: Yu Liu, yu.liu@freescale.com
7 * This file is based on arch/powerpc/kvm/44x_tlb.c,
8 * by Hollis Blanchard <hollisb@us.ibm.com>.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License, version 2, as
12 * published by the Free Software Foundation.
15 #include <linux/types.h>
16 #include <linux/string.h>
17 #include <linux/kvm.h>
18 #include <linux/kvm_host.h>
19 #include <linux/highmem.h>
20 #include <asm/kvm_ppc.h>
21 #include <asm/kvm_e500.h>
23 #include "../mm/mmu_decl.h"
26 #define to_htlb1_esel(esel) (tlb1_entry_num - (esel) - 1)
28 static unsigned int tlb1_entry_num;
30 void kvmppc_dump_tlbs(struct kvm_vcpu *vcpu)
32 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
36 printk("| %8s | %8s | %8s | %8s | %8s |\n",
37 "nr", "mas1", "mas2", "mas3", "mas7");
39 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
40 printk("Guest TLB%d:\n", tlbsel);
41 for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++) {
42 tlbe = &vcpu_e500->guest_tlb[tlbsel][i];
43 if (tlbe->mas1 & MAS1_VALID)
44 printk(" G[%d][%3d] | %08X | %08X | %08X | %08X |\n",
45 tlbsel, i, tlbe->mas1, tlbe->mas2,
46 tlbe->mas3, tlbe->mas7);
50 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
51 printk("Shadow TLB%d:\n", tlbsel);
52 for (i = 0; i < vcpu_e500->shadow_tlb_size[tlbsel]; i++) {
53 tlbe = &vcpu_e500->shadow_tlb[tlbsel][i];
54 if (tlbe->mas1 & MAS1_VALID)
55 printk(" S[%d][%3d] | %08X | %08X | %08X | %08X |\n",
56 tlbsel, i, tlbe->mas1, tlbe->mas2,
57 tlbe->mas3, tlbe->mas7);
62 static inline unsigned int tlb0_get_next_victim(
63 struct kvmppc_vcpu_e500 *vcpu_e500)
67 victim = vcpu_e500->guest_tlb_nv[0]++;
68 if (unlikely(vcpu_e500->guest_tlb_nv[0] >= KVM_E500_TLB0_WAY_NUM))
69 vcpu_e500->guest_tlb_nv[0] = 0;
74 static inline unsigned int tlb1_max_shadow_size(void)
76 return tlb1_entry_num - tlbcam_index;
79 static inline int tlbe_is_writable(struct tlbe *tlbe)
81 return tlbe->mas3 & (MAS3_SW|MAS3_UW);
84 static inline u32 e500_shadow_mas3_attrib(u32 mas3, int usermode)
86 /* Mask off reserved bits. */
87 mas3 &= MAS3_ATTRIB_MASK;
90 /* Guest is in supervisor mode,
91 * so we need to translate guest
92 * supervisor permissions into user permissions. */
93 mas3 &= ~E500_TLB_USER_PERM_MASK;
94 mas3 |= (mas3 & E500_TLB_SUPER_PERM_MASK) << 1;
97 return mas3 | E500_TLB_SUPER_PERM_MASK;
100 static inline u32 e500_shadow_mas2_attrib(u32 mas2, int usermode)
102 return mas2 & MAS2_ATTRIB_MASK;
106 * writing shadow tlb entry to host TLB
108 static inline void __write_host_tlbe(struct tlbe *stlbe)
110 mtspr(SPRN_MAS1, stlbe->mas1);
111 mtspr(SPRN_MAS2, stlbe->mas2);
112 mtspr(SPRN_MAS3, stlbe->mas3);
113 mtspr(SPRN_MAS7, stlbe->mas7);
114 __asm__ __volatile__ ("tlbwe\n" : : );
117 static inline void write_host_tlbe(struct kvmppc_vcpu_e500 *vcpu_e500,
118 int tlbsel, int esel)
120 struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
124 __write_host_tlbe(stlbe);
126 unsigned register mas0;
128 mas0 = mfspr(SPRN_MAS0);
130 mtspr(SPRN_MAS0, MAS0_TLBSEL(1) | MAS0_ESEL(to_htlb1_esel(esel)));
131 __write_host_tlbe(stlbe);
133 mtspr(SPRN_MAS0, mas0);
138 void kvmppc_e500_tlb_load(struct kvm_vcpu *vcpu, int cpu)
140 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
142 unsigned register mas0;
144 /* Load all valid TLB1 entries to reduce guest tlb miss fault */
146 mas0 = mfspr(SPRN_MAS0);
147 for (i = 0; i < tlb1_max_shadow_size(); i++) {
148 struct tlbe *stlbe = &vcpu_e500->shadow_tlb[1][i];
150 if (get_tlb_v(stlbe)) {
151 mtspr(SPRN_MAS0, MAS0_TLBSEL(1)
152 | MAS0_ESEL(to_htlb1_esel(i)));
153 __write_host_tlbe(stlbe);
156 mtspr(SPRN_MAS0, mas0);
160 void kvmppc_e500_tlb_put(struct kvm_vcpu *vcpu)
165 /* Search the guest TLB for a matching entry. */
166 static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500,
167 gva_t eaddr, int tlbsel, unsigned int pid, int as)
171 /* XXX Replace loop with fancy data structures. */
172 for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++) {
173 struct tlbe *tlbe = &vcpu_e500->guest_tlb[tlbsel][i];
176 if (eaddr < get_tlb_eaddr(tlbe))
179 if (eaddr > get_tlb_end(tlbe))
182 tid = get_tlb_tid(tlbe);
183 if (tid && (tid != pid))
186 if (!get_tlb_v(tlbe))
189 if (get_tlb_ts(tlbe) != as && as != -1)
198 static void kvmppc_e500_shadow_release(struct kvmppc_vcpu_e500 *vcpu_e500,
199 int tlbsel, int esel)
201 struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
202 struct page *page = vcpu_e500->shadow_pages[tlbsel][esel];
205 vcpu_e500->shadow_pages[tlbsel][esel] = NULL;
207 if (get_tlb_v(stlbe)) {
208 if (tlbe_is_writable(stlbe))
209 kvm_release_page_dirty(page);
211 kvm_release_page_clean(page);
216 static void kvmppc_e500_stlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
217 int tlbsel, int esel)
219 struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
221 kvmppc_e500_shadow_release(vcpu_e500, tlbsel, esel);
223 KVMTRACE_5D(STLB_INVAL, &vcpu_e500->vcpu, index_of(tlbsel, esel),
224 stlbe->mas1, stlbe->mas2, stlbe->mas3, stlbe->mas7,
228 static void kvmppc_e500_tlb1_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
229 gva_t eaddr, gva_t eend, u32 tid)
231 unsigned int pid = tid & 0xff;
234 /* XXX Replace loop with fancy data structures. */
235 for (i = 0; i < vcpu_e500->guest_tlb_size[1]; i++) {
236 struct tlbe *stlbe = &vcpu_e500->shadow_tlb[1][i];
239 if (!get_tlb_v(stlbe))
242 if (eend < get_tlb_eaddr(stlbe))
245 if (eaddr > get_tlb_end(stlbe))
248 tid = get_tlb_tid(stlbe);
249 if (tid && (tid != pid))
252 kvmppc_e500_stlbe_invalidate(vcpu_e500, 1, i);
253 write_host_tlbe(vcpu_e500, 1, i);
257 static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
258 unsigned int eaddr, int as)
260 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
261 unsigned int victim, pidsel, tsized;
264 /* since we only have two TLBs, only lower bit is used. */
265 tlbsel = (vcpu_e500->mas4 >> 28) & 0x1;
266 victim = (tlbsel == 0) ? tlb0_get_next_victim(vcpu_e500) : 0;
267 pidsel = (vcpu_e500->mas4 >> 16) & 0xf;
268 tsized = (vcpu_e500->mas4 >> 8) & 0xf;
270 vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
271 | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
272 vcpu_e500->mas1 = MAS1_VALID | (as ? MAS1_TS : 0)
273 | MAS1_TID(vcpu_e500->pid[pidsel])
274 | MAS1_TSIZE(tsized);
275 vcpu_e500->mas2 = (eaddr & MAS2_EPN)
276 | (vcpu_e500->mas4 & MAS2_ATTRIB_MASK);
277 vcpu_e500->mas3 &= MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3;
278 vcpu_e500->mas6 = (vcpu_e500->mas6 & MAS6_SPID1)
279 | (get_cur_pid(vcpu) << 16)
280 | (as ? MAS6_SAS : 0);
284 static inline void kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
285 u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe, int tlbsel, int esel)
287 struct page *new_page;
291 stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
293 /* Get reference to new page. */
294 new_page = gfn_to_page(vcpu_e500->vcpu.kvm, gfn);
295 if (is_error_page(new_page)) {
296 printk(KERN_ERR "Couldn't get guest page for gfn %lx!\n", gfn);
297 kvm_release_page_clean(new_page);
300 hpaddr = page_to_phys(new_page);
302 /* Drop reference to old page. */
303 kvmppc_e500_shadow_release(vcpu_e500, tlbsel, esel);
305 vcpu_e500->shadow_pages[tlbsel][esel] = new_page;
307 /* Force TS=1 IPROT=0 TSIZE=4KB for all guest mappings. */
308 stlbe->mas1 = MAS1_TSIZE(BOOKE_PAGESZ_4K)
309 | MAS1_TID(get_tlb_tid(gtlbe)) | MAS1_TS | MAS1_VALID;
310 stlbe->mas2 = (gvaddr & MAS2_EPN)
311 | e500_shadow_mas2_attrib(gtlbe->mas2,
312 vcpu_e500->vcpu.arch.msr & MSR_PR);
313 stlbe->mas3 = (hpaddr & MAS3_RPN)
314 | e500_shadow_mas3_attrib(gtlbe->mas3,
315 vcpu_e500->vcpu.arch.msr & MSR_PR);
316 stlbe->mas7 = (hpaddr >> 32) & MAS7_RPN;
318 KVMTRACE_5D(STLB_WRITE, &vcpu_e500->vcpu, index_of(tlbsel, esel),
319 stlbe->mas1, stlbe->mas2, stlbe->mas3, stlbe->mas7,
323 /* XXX only map the one-one case, for now use TLB0 */
324 static int kvmppc_e500_stlbe_map(struct kvmppc_vcpu_e500 *vcpu_e500,
325 int tlbsel, int esel)
329 gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
331 kvmppc_e500_shadow_map(vcpu_e500, get_tlb_eaddr(gtlbe),
332 get_tlb_raddr(gtlbe) >> PAGE_SHIFT,
333 gtlbe, tlbsel, esel);
338 /* Caller must ensure that the specified guest TLB entry is safe to insert into
340 /* XXX for both one-one and one-to-many , for now use TLB1 */
341 static int kvmppc_e500_tlb1_map(struct kvmppc_vcpu_e500 *vcpu_e500,
342 u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe)
346 victim = vcpu_e500->guest_tlb_nv[1]++;
348 if (unlikely(vcpu_e500->guest_tlb_nv[1] >= tlb1_max_shadow_size()))
349 vcpu_e500->guest_tlb_nv[1] = 0;
351 kvmppc_e500_shadow_map(vcpu_e500, gvaddr, gfn, gtlbe, 1, victim);
356 /* Invalidate all guest kernel mappings when enter usermode,
357 * so that when they fault back in they will get the
358 * proper permission bits. */
359 void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode)
362 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
365 /* XXX Replace loop with fancy data structures. */
366 for (i = 0; i < tlb1_max_shadow_size(); i++)
367 kvmppc_e500_stlbe_invalidate(vcpu_e500, 1, i);
373 static int kvmppc_e500_gtlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
374 int tlbsel, int esel)
376 struct tlbe *gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
378 if (unlikely(get_tlb_iprot(gtlbe)))
382 kvmppc_e500_tlb1_invalidate(vcpu_e500, get_tlb_eaddr(gtlbe),
386 kvmppc_e500_stlbe_invalidate(vcpu_e500, tlbsel, esel);
394 int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value)
398 if (value & MMUCSR0_TLB0FI)
399 for (esel = 0; esel < vcpu_e500->guest_tlb_size[0]; esel++)
400 kvmppc_e500_gtlbe_invalidate(vcpu_e500, 0, esel);
401 if (value & MMUCSR0_TLB1FI)
402 for (esel = 0; esel < vcpu_e500->guest_tlb_size[1]; esel++)
403 kvmppc_e500_gtlbe_invalidate(vcpu_e500, 1, esel);
410 int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
412 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
417 ea = ((ra) ? vcpu->arch.gpr[ra] : 0) + vcpu->arch.gpr[rb];
419 ia = (ea >> 2) & 0x1;
421 /* since we only have two TLBs, only lower bit is used. */
422 tlbsel = (ea >> 3) & 0x1;
425 /* invalidate all entries */
426 for (esel = 0; esel < vcpu_e500->guest_tlb_size[tlbsel]; esel++)
427 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
430 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel,
431 get_cur_pid(vcpu), -1);
433 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
441 int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu)
443 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
447 tlbsel = get_tlb_tlbsel(vcpu_e500);
448 esel = get_tlb_esel(vcpu_e500, tlbsel);
450 gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
451 vcpu_e500->mas0 &= MAS0_NV(0);
452 vcpu_e500->mas0 |= MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
453 vcpu_e500->mas1 = gtlbe->mas1;
454 vcpu_e500->mas2 = gtlbe->mas2;
455 vcpu_e500->mas3 = gtlbe->mas3;
456 vcpu_e500->mas7 = gtlbe->mas7;
461 int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
463 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
464 int as = !!get_cur_sas(vcpu_e500);
465 unsigned int pid = get_cur_spid(vcpu_e500);
467 struct tlbe *gtlbe = NULL;
470 ea = vcpu->arch.gpr[rb];
472 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
473 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, as);
475 gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
481 vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel)
482 | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
483 vcpu_e500->mas1 = gtlbe->mas1;
484 vcpu_e500->mas2 = gtlbe->mas2;
485 vcpu_e500->mas3 = gtlbe->mas3;
486 vcpu_e500->mas7 = gtlbe->mas7;
490 /* since we only have two TLBs, only lower bit is used. */
491 tlbsel = vcpu_e500->mas4 >> 28 & 0x1;
492 victim = (tlbsel == 0) ? tlb0_get_next_victim(vcpu_e500) : 0;
494 vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
495 | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
496 vcpu_e500->mas1 = (vcpu_e500->mas6 & MAS6_SPID0)
497 | (vcpu_e500->mas6 & (MAS6_SAS ? MAS1_TS : 0))
498 | (vcpu_e500->mas4 & MAS4_TSIZED(~0));
499 vcpu_e500->mas2 &= MAS2_EPN;
500 vcpu_e500->mas2 |= vcpu_e500->mas4 & MAS2_ATTRIB_MASK;
501 vcpu_e500->mas3 &= MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3;
508 int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
510 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
515 int tlbsel, esel, stlbsel, sesel;
517 tlbsel = get_tlb_tlbsel(vcpu_e500);
518 esel = get_tlb_esel(vcpu_e500, tlbsel);
520 gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
522 if (get_tlb_v(gtlbe) && tlbsel == 1) {
523 eaddr = get_tlb_eaddr(gtlbe);
524 tid = get_tlb_tid(gtlbe);
525 kvmppc_e500_tlb1_invalidate(vcpu_e500, eaddr,
526 get_tlb_end(gtlbe), tid);
529 gtlbe->mas1 = vcpu_e500->mas1;
530 gtlbe->mas2 = vcpu_e500->mas2;
531 gtlbe->mas3 = vcpu_e500->mas3;
532 gtlbe->mas7 = vcpu_e500->mas7;
534 KVMTRACE_5D(GTLB_WRITE, vcpu, vcpu_e500->mas0,
535 gtlbe->mas1, gtlbe->mas2, gtlbe->mas3, gtlbe->mas7,
538 /* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */
539 if (tlbe_is_host_safe(vcpu, gtlbe)) {
543 gtlbe->mas1 &= ~MAS1_TSIZE(~0);
544 gtlbe->mas1 |= MAS1_TSIZE(BOOKE_PAGESZ_4K);
547 sesel = kvmppc_e500_stlbe_map(vcpu_e500, 0, esel);
553 eaddr = get_tlb_eaddr(gtlbe);
554 raddr = get_tlb_raddr(gtlbe);
556 /* Create a 4KB mapping on the host.
557 * If the guest wanted a large page,
558 * only the first 4KB is mapped here and the rest
559 * are mapped on the fly. */
561 sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr,
562 raddr >> PAGE_SHIFT, gtlbe);
568 write_host_tlbe(vcpu_e500, stlbsel, sesel);
574 int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
576 unsigned int as = !!(vcpu->arch.msr & MSR_IS);
578 return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
581 int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
583 unsigned int as = !!(vcpu->arch.msr & MSR_DS);
585 return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
588 void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu)
590 unsigned int as = !!(vcpu->arch.msr & MSR_IS);
592 kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.pc, as);
595 void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu)
597 unsigned int as = !!(vcpu->arch.msr & MSR_DS);
599 kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.fault_dear, as);
602 gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index,
605 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
607 &vcpu_e500->guest_tlb[tlbsel_of(index)][esel_of(index)];
608 u64 pgmask = get_tlb_bytes(gtlbe) - 1;
610 return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
613 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
615 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
618 for (tlbsel = 0; tlbsel < 2; tlbsel++)
619 for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++)
620 kvmppc_e500_shadow_release(vcpu_e500, tlbsel, i);
622 /* discard all guest mapping */
626 void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr,
629 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
630 int tlbsel = tlbsel_of(index);
631 int esel = esel_of(index);
641 gfn_t gfn = gpaddr >> PAGE_SHIFT;
643 = &vcpu_e500->guest_tlb[tlbsel][esel];
646 sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr, gfn, gtlbe);
654 write_host_tlbe(vcpu_e500, stlbsel, sesel);
657 int kvmppc_e500_tlb_search(struct kvm_vcpu *vcpu,
658 gva_t eaddr, unsigned int pid, int as)
660 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
663 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
664 esel = kvmppc_e500_tlb_index(vcpu_e500, eaddr, tlbsel, pid, as);
666 return index_of(tlbsel, esel);
672 void kvmppc_e500_tlb_setup(struct kvmppc_vcpu_e500 *vcpu_e500)
676 /* Insert large initial mapping for guest. */
677 tlbe = &vcpu_e500->guest_tlb[1][0];
678 tlbe->mas1 = MAS1_VALID | MAS1_TSIZE(BOOKE_PAGESZ_256M);
680 tlbe->mas3 = E500_TLB_SUPER_PERM_MASK;
683 /* 4K map for serial output. Used by kernel wrapper. */
684 tlbe = &vcpu_e500->guest_tlb[1][1];
685 tlbe->mas1 = MAS1_VALID | MAS1_TSIZE(BOOKE_PAGESZ_4K);
686 tlbe->mas2 = (0xe0004500 & 0xFFFFF000) | MAS2_I | MAS2_G;
687 tlbe->mas3 = (0xe0004500 & 0xFFFFF000) | E500_TLB_SUPER_PERM_MASK;
691 int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
693 tlb1_entry_num = mfspr(SPRN_TLB1CFG) & 0xFFF;
695 vcpu_e500->guest_tlb_size[0] = KVM_E500_TLB0_SIZE;
696 vcpu_e500->guest_tlb[0] =
697 kzalloc(sizeof(struct tlbe) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
698 if (vcpu_e500->guest_tlb[0] == NULL)
701 vcpu_e500->shadow_tlb_size[0] = KVM_E500_TLB0_SIZE;
702 vcpu_e500->shadow_tlb[0] =
703 kzalloc(sizeof(struct tlbe) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
704 if (vcpu_e500->shadow_tlb[0] == NULL)
707 vcpu_e500->guest_tlb_size[1] = KVM_E500_TLB1_SIZE;
708 vcpu_e500->guest_tlb[1] =
709 kzalloc(sizeof(struct tlbe) * KVM_E500_TLB1_SIZE, GFP_KERNEL);
710 if (vcpu_e500->guest_tlb[1] == NULL)
711 goto err_out_shadow0;
713 vcpu_e500->shadow_tlb_size[1] = tlb1_entry_num;
714 vcpu_e500->shadow_tlb[1] =
715 kzalloc(sizeof(struct tlbe) * tlb1_entry_num, GFP_KERNEL);
716 if (vcpu_e500->shadow_tlb[1] == NULL)
719 vcpu_e500->shadow_pages[0] = (struct page **)
720 kzalloc(sizeof(struct page *) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
721 if (vcpu_e500->shadow_pages[0] == NULL)
722 goto err_out_shadow1;
724 vcpu_e500->shadow_pages[1] = (struct page **)
725 kzalloc(sizeof(struct page *) * tlb1_entry_num, GFP_KERNEL);
726 if (vcpu_e500->shadow_pages[1] == NULL)
732 kfree(vcpu_e500->shadow_pages[0]);
734 kfree(vcpu_e500->shadow_tlb[1]);
736 kfree(vcpu_e500->guest_tlb[1]);
738 kfree(vcpu_e500->shadow_tlb[0]);
740 kfree(vcpu_e500->guest_tlb[0]);
745 void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500)
747 kfree(vcpu_e500->shadow_pages[1]);
748 kfree(vcpu_e500->shadow_pages[0]);
749 kfree(vcpu_e500->shadow_tlb[1]);
750 kfree(vcpu_e500->guest_tlb[1]);
751 kfree(vcpu_e500->shadow_tlb[0]);
752 kfree(vcpu_e500->guest_tlb[0]);