2 * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
4 * Author: Yu Liu, yu.liu@freescale.com
5 * Scott Wood, scottwood@freescale.com
6 * Ashish Kalra, ashish.kalra@freescale.com
7 * Varun Sethi, varun.sethi@freescale.com
10 * This file is based on arch/powerpc/kvm/44x_tlb.c,
11 * by Hollis Blanchard <hollisb@us.ibm.com>.
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License, version 2, as
15 * published by the Free Software Foundation.
18 #include <linux/kernel.h>
19 #include <linux/types.h>
20 #include <linux/slab.h>
21 #include <linux/string.h>
22 #include <linux/kvm.h>
23 #include <linux/kvm_host.h>
24 #include <linux/highmem.h>
25 #include <linux/log2.h>
26 #include <linux/uaccess.h>
27 #include <linux/sched.h>
28 #include <linux/rwsem.h>
29 #include <linux/vmalloc.h>
30 #include <linux/hugetlb.h>
31 #include <asm/kvm_ppc.h>
37 #define to_htlb1_esel(esel) (host_tlb_params[1].entries - (esel) - 1)
39 static struct kvmppc_e500_tlb_params host_tlb_params[E500_TLB_NUM];
41 static inline unsigned int gtlb0_get_next_victim(
42 struct kvmppc_vcpu_e500 *vcpu_e500)
46 victim = vcpu_e500->gtlb_nv[0]++;
47 if (unlikely(vcpu_e500->gtlb_nv[0] >= vcpu_e500->gtlb_params[0].ways))
48 vcpu_e500->gtlb_nv[0] = 0;
53 static inline unsigned int tlb1_max_shadow_size(void)
55 /* reserve one entry for magic page */
56 return host_tlb_params[1].entries - tlbcam_index - 1;
59 static inline int tlbe_is_writable(struct kvm_book3e_206_tlb_entry *tlbe)
61 return tlbe->mas7_3 & (MAS3_SW|MAS3_UW);
64 static inline u32 e500_shadow_mas3_attrib(u32 mas3, int usermode)
66 /* Mask off reserved bits. */
67 mas3 &= MAS3_ATTRIB_MASK;
69 #ifndef CONFIG_KVM_BOOKE_HV
71 /* Guest is in supervisor mode,
72 * so we need to translate guest
73 * supervisor permissions into user permissions. */
74 mas3 &= ~E500_TLB_USER_PERM_MASK;
75 mas3 |= (mas3 & E500_TLB_SUPER_PERM_MASK) << 1;
77 mas3 |= E500_TLB_SUPER_PERM_MASK;
82 static inline u32 e500_shadow_mas2_attrib(u32 mas2, int usermode)
85 return (mas2 & MAS2_ATTRIB_MASK) | MAS2_M;
87 return mas2 & MAS2_ATTRIB_MASK;
92 * writing shadow tlb entry to host TLB
94 static inline void __write_host_tlbe(struct kvm_book3e_206_tlb_entry *stlbe,
99 local_irq_save(flags);
100 mtspr(SPRN_MAS0, mas0);
101 mtspr(SPRN_MAS1, stlbe->mas1);
102 mtspr(SPRN_MAS2, (unsigned long)stlbe->mas2);
103 mtspr(SPRN_MAS3, (u32)stlbe->mas7_3);
104 mtspr(SPRN_MAS7, (u32)(stlbe->mas7_3 >> 32));
105 #ifdef CONFIG_KVM_BOOKE_HV
106 mtspr(SPRN_MAS8, stlbe->mas8);
108 asm volatile("isync; tlbwe" : : : "memory");
110 #ifdef CONFIG_KVM_BOOKE_HV
111 /* Must clear mas8 for other host tlbwe's */
115 local_irq_restore(flags);
117 trace_kvm_booke206_stlb_write(mas0, stlbe->mas8, stlbe->mas1,
118 stlbe->mas2, stlbe->mas7_3);
122 * Acquire a mas0 with victim hint, as if we just took a TLB miss.
124 * We don't care about the address we're searching for, other than that it's
125 * in the right set and is not present in the TLB. Using a zero PID and a
126 * userspace address means we don't have to set and then restore MAS5, or
127 * calculate a proper MAS6 value.
129 static u32 get_host_mas0(unsigned long eaddr)
134 local_irq_save(flags);
136 asm volatile("tlbsx 0, %0" : : "b" (eaddr & ~CONFIG_PAGE_OFFSET));
137 mas0 = mfspr(SPRN_MAS0);
138 local_irq_restore(flags);
143 /* sesel is for tlb1 only */
144 static inline void write_host_tlbe(struct kvmppc_vcpu_e500 *vcpu_e500,
145 int tlbsel, int sesel, struct kvm_book3e_206_tlb_entry *stlbe)
150 mas0 = get_host_mas0(stlbe->mas2);
151 __write_host_tlbe(stlbe, mas0);
153 __write_host_tlbe(stlbe,
155 MAS0_ESEL(to_htlb1_esel(sesel)));
159 #ifdef CONFIG_KVM_E500V2
160 void kvmppc_map_magic(struct kvm_vcpu *vcpu)
162 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
163 struct kvm_book3e_206_tlb_entry magic;
164 ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK;
168 pfn = (pfn_t)virt_to_phys((void *)shared_page) >> PAGE_SHIFT;
169 get_page(pfn_to_page(pfn));
172 stid = kvmppc_e500_get_sid(vcpu_e500, 0, 0, 0, 0);
174 magic.mas1 = MAS1_VALID | MAS1_TS | MAS1_TID(stid) |
175 MAS1_TSIZE(BOOK3E_PAGESZ_4K);
176 magic.mas2 = vcpu->arch.magic_page_ea | MAS2_M;
177 magic.mas7_3 = ((u64)pfn << PAGE_SHIFT) |
178 MAS3_SW | MAS3_SR | MAS3_UW | MAS3_UR;
181 __write_host_tlbe(&magic, MAS0_TLBSEL(1) | MAS0_ESEL(tlbcam_index));
186 static void inval_gtlbe_on_host(struct kvmppc_vcpu_e500 *vcpu_e500,
187 int tlbsel, int esel)
189 struct kvm_book3e_206_tlb_entry *gtlbe =
190 get_entry(vcpu_e500, tlbsel, esel);
193 vcpu_e500->gtlb_priv[1][esel].ref.flags & E500_TLB_BITMAP) {
194 u64 tmp = vcpu_e500->g2h_tlb1_map[esel];
198 local_irq_save(flags);
200 hw_tlb_indx = __ilog2_u64(tmp & -tmp);
203 MAS0_ESEL(to_htlb1_esel(hw_tlb_indx)));
205 asm volatile("tlbwe");
206 vcpu_e500->h2g_tlb1_rmap[hw_tlb_indx] = 0;
210 vcpu_e500->g2h_tlb1_map[esel] = 0;
211 vcpu_e500->gtlb_priv[1][esel].ref.flags &= ~E500_TLB_BITMAP;
212 local_irq_restore(flags);
217 /* Guest tlbe is backed by at most one host tlbe per shadow pid. */
218 kvmppc_e500_tlbil_one(vcpu_e500, gtlbe);
221 static int tlb0_set_base(gva_t addr, int sets, int ways)
225 set_base = (addr >> PAGE_SHIFT) & (sets - 1);
231 static int gtlb0_set_base(struct kvmppc_vcpu_e500 *vcpu_e500, gva_t addr)
233 return tlb0_set_base(addr, vcpu_e500->gtlb_params[0].sets,
234 vcpu_e500->gtlb_params[0].ways);
237 static unsigned int get_tlb_esel(struct kvm_vcpu *vcpu, int tlbsel)
239 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
240 int esel = get_tlb_esel_bit(vcpu);
243 esel &= vcpu_e500->gtlb_params[0].ways - 1;
244 esel += gtlb0_set_base(vcpu_e500, vcpu->arch.shared->mas2);
246 esel &= vcpu_e500->gtlb_params[tlbsel].entries - 1;
252 /* Search the guest TLB for a matching entry. */
253 static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500,
254 gva_t eaddr, int tlbsel, unsigned int pid, int as)
256 int size = vcpu_e500->gtlb_params[tlbsel].entries;
257 unsigned int set_base, offset;
261 set_base = gtlb0_set_base(vcpu_e500, eaddr);
262 size = vcpu_e500->gtlb_params[0].ways;
264 if (eaddr < vcpu_e500->tlb1_min_eaddr ||
265 eaddr > vcpu_e500->tlb1_max_eaddr)
270 offset = vcpu_e500->gtlb_offset[tlbsel];
272 for (i = 0; i < size; i++) {
273 struct kvm_book3e_206_tlb_entry *tlbe =
274 &vcpu_e500->gtlb_arch[offset + set_base + i];
277 if (eaddr < get_tlb_eaddr(tlbe))
280 if (eaddr > get_tlb_end(tlbe))
283 tid = get_tlb_tid(tlbe);
284 if (tid && (tid != pid))
287 if (!get_tlb_v(tlbe))
290 if (get_tlb_ts(tlbe) != as && as != -1)
299 static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref,
300 struct kvm_book3e_206_tlb_entry *gtlbe,
304 ref->flags = E500_TLB_VALID;
306 if (tlbe_is_writable(gtlbe))
307 ref->flags |= E500_TLB_DIRTY;
310 static inline void kvmppc_e500_ref_release(struct tlbe_ref *ref)
312 if (ref->flags & E500_TLB_VALID) {
313 if (ref->flags & E500_TLB_DIRTY)
314 kvm_release_pfn_dirty(ref->pfn);
316 kvm_release_pfn_clean(ref->pfn);
322 static void clear_tlb1_bitmap(struct kvmppc_vcpu_e500 *vcpu_e500)
324 if (vcpu_e500->g2h_tlb1_map)
325 memset(vcpu_e500->g2h_tlb1_map,
326 sizeof(u64) * vcpu_e500->gtlb_params[1].entries, 0);
327 if (vcpu_e500->h2g_tlb1_rmap)
328 memset(vcpu_e500->h2g_tlb1_rmap,
329 sizeof(unsigned int) * host_tlb_params[1].entries, 0);
332 static void clear_tlb_privs(struct kvmppc_vcpu_e500 *vcpu_e500)
337 for (i = 0; i < vcpu_e500->gtlb_params[tlbsel].entries; i++) {
338 struct tlbe_ref *ref =
339 &vcpu_e500->gtlb_priv[tlbsel][i].ref;
340 kvmppc_e500_ref_release(ref);
344 static void clear_tlb_refs(struct kvmppc_vcpu_e500 *vcpu_e500)
349 kvmppc_e500_tlbil_all(vcpu_e500);
351 for (i = 0; i < host_tlb_params[stlbsel].entries; i++) {
352 struct tlbe_ref *ref =
353 &vcpu_e500->tlb_refs[stlbsel][i];
354 kvmppc_e500_ref_release(ref);
357 clear_tlb_privs(vcpu_e500);
360 static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
361 unsigned int eaddr, int as)
363 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
364 unsigned int victim, tsized;
367 /* since we only have two TLBs, only lower bit is used. */
368 tlbsel = (vcpu->arch.shared->mas4 >> 28) & 0x1;
369 victim = (tlbsel == 0) ? gtlb0_get_next_victim(vcpu_e500) : 0;
370 tsized = (vcpu->arch.shared->mas4 >> 7) & 0x1f;
372 vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
373 | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
374 vcpu->arch.shared->mas1 = MAS1_VALID | (as ? MAS1_TS : 0)
375 | MAS1_TID(get_tlbmiss_tid(vcpu))
376 | MAS1_TSIZE(tsized);
377 vcpu->arch.shared->mas2 = (eaddr & MAS2_EPN)
378 | (vcpu->arch.shared->mas4 & MAS2_ATTRIB_MASK);
379 vcpu->arch.shared->mas7_3 &= MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3;
380 vcpu->arch.shared->mas6 = (vcpu->arch.shared->mas6 & MAS6_SPID1)
381 | (get_cur_pid(vcpu) << 16)
382 | (as ? MAS6_SAS : 0);
385 /* TID must be supplied by the caller */
386 static inline void kvmppc_e500_setup_stlbe(
387 struct kvm_vcpu *vcpu,
388 struct kvm_book3e_206_tlb_entry *gtlbe,
389 int tsize, struct tlbe_ref *ref, u64 gvaddr,
390 struct kvm_book3e_206_tlb_entry *stlbe)
392 pfn_t pfn = ref->pfn;
393 u32 pr = vcpu->arch.shared->msr & MSR_PR;
395 BUG_ON(!(ref->flags & E500_TLB_VALID));
397 /* Force IPROT=0 for all guest mappings. */
398 stlbe->mas1 = MAS1_TSIZE(tsize) | get_tlb_sts(gtlbe) | MAS1_VALID;
399 stlbe->mas2 = (gvaddr & MAS2_EPN) |
400 e500_shadow_mas2_attrib(gtlbe->mas2, pr);
401 stlbe->mas7_3 = ((u64)pfn << PAGE_SHIFT) |
402 e500_shadow_mas3_attrib(gtlbe->mas7_3, pr);
404 #ifdef CONFIG_KVM_BOOKE_HV
405 stlbe->mas8 = MAS8_TGS | vcpu->kvm->arch.lpid;
409 static inline void kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
410 u64 gvaddr, gfn_t gfn, struct kvm_book3e_206_tlb_entry *gtlbe,
411 int tlbsel, struct kvm_book3e_206_tlb_entry *stlbe,
412 struct tlbe_ref *ref)
414 struct kvm_memory_slot *slot;
415 unsigned long pfn, hva;
417 int tsize = BOOK3E_PAGESZ_4K;
420 * Translate guest physical to true physical, acquiring
421 * a page reference if it is normal, non-reserved memory.
423 * gfn_to_memslot() must succeed because otherwise we wouldn't
424 * have gotten this far. Eventually we should just pass the slot
425 * pointer through from the first lookup.
427 slot = gfn_to_memslot(vcpu_e500->vcpu.kvm, gfn);
428 hva = gfn_to_hva_memslot(slot, gfn);
431 struct vm_area_struct *vma;
432 down_read(¤t->mm->mmap_sem);
434 vma = find_vma(current->mm, hva);
435 if (vma && hva >= vma->vm_start &&
436 (vma->vm_flags & VM_PFNMAP)) {
438 * This VMA is a physically contiguous region (e.g.
439 * /dev/mem) that bypasses normal Linux page
440 * management. Find the overlap between the
441 * vma and the memslot.
444 unsigned long start, end;
445 unsigned long slot_start, slot_end;
449 start = vma->vm_pgoff;
451 ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT);
453 pfn = start + ((hva - vma->vm_start) >> PAGE_SHIFT);
455 slot_start = pfn - (gfn - slot->base_gfn);
456 slot_end = slot_start + slot->npages;
458 if (start < slot_start)
463 tsize = (gtlbe->mas1 & MAS1_TSIZE_MASK) >>
467 * e500 doesn't implement the lowest tsize bit,
470 tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1);
473 * Now find the largest tsize (up to what the guest
474 * requested) that will cover gfn, stay within the
475 * range, and for which gfn and pfn are mutually
479 for (; tsize > BOOK3E_PAGESZ_4K; tsize -= 2) {
480 unsigned long gfn_start, gfn_end, tsize_pages;
481 tsize_pages = 1 << (tsize - 2);
483 gfn_start = gfn & ~(tsize_pages - 1);
484 gfn_end = gfn_start + tsize_pages;
486 if (gfn_start + pfn - gfn < start)
488 if (gfn_end + pfn - gfn > end)
490 if ((gfn & (tsize_pages - 1)) !=
491 (pfn & (tsize_pages - 1)))
494 gvaddr &= ~((tsize_pages << PAGE_SHIFT) - 1);
495 pfn &= ~(tsize_pages - 1);
498 } else if (vma && hva >= vma->vm_start &&
499 (vma->vm_flags & VM_HUGETLB)) {
500 unsigned long psize = vma_kernel_pagesize(vma);
502 tsize = (gtlbe->mas1 & MAS1_TSIZE_MASK) >>
506 * Take the largest page size that satisfies both host
509 tsize = min(__ilog2(psize) - 10, tsize);
512 * e500 doesn't implement the lowest tsize bit,
515 tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1);
518 up_read(¤t->mm->mmap_sem);
521 if (likely(!pfnmap)) {
522 unsigned long tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
523 pfn = gfn_to_pfn_memslot(slot, gfn);
524 if (is_error_pfn(pfn)) {
525 printk(KERN_ERR "Couldn't get real page for gfn %lx!\n",
530 /* Align guest and physical address to page map boundaries */
531 pfn &= ~(tsize_pages - 1);
532 gvaddr &= ~((tsize_pages << PAGE_SHIFT) - 1);
535 /* Drop old ref and setup new one. */
536 kvmppc_e500_ref_release(ref);
537 kvmppc_e500_ref_setup(ref, gtlbe, pfn);
539 kvmppc_e500_setup_stlbe(&vcpu_e500->vcpu, gtlbe, tsize,
543 /* XXX only map the one-one case, for now use TLB0 */
544 static void kvmppc_e500_tlb0_map(struct kvmppc_vcpu_e500 *vcpu_e500,
546 struct kvm_book3e_206_tlb_entry *stlbe)
548 struct kvm_book3e_206_tlb_entry *gtlbe;
549 struct tlbe_ref *ref;
551 gtlbe = get_entry(vcpu_e500, 0, esel);
552 ref = &vcpu_e500->gtlb_priv[0][esel].ref;
554 kvmppc_e500_shadow_map(vcpu_e500, get_tlb_eaddr(gtlbe),
555 get_tlb_raddr(gtlbe) >> PAGE_SHIFT,
556 gtlbe, 0, stlbe, ref);
559 /* Caller must ensure that the specified guest TLB entry is safe to insert into
561 /* XXX for both one-one and one-to-many , for now use TLB1 */
562 static int kvmppc_e500_tlb1_map(struct kvmppc_vcpu_e500 *vcpu_e500,
563 u64 gvaddr, gfn_t gfn, struct kvm_book3e_206_tlb_entry *gtlbe,
564 struct kvm_book3e_206_tlb_entry *stlbe, int esel)
566 struct tlbe_ref *ref;
569 victim = vcpu_e500->host_tlb1_nv++;
571 if (unlikely(vcpu_e500->host_tlb1_nv >= tlb1_max_shadow_size()))
572 vcpu_e500->host_tlb1_nv = 0;
574 ref = &vcpu_e500->tlb_refs[1][victim];
575 kvmppc_e500_shadow_map(vcpu_e500, gvaddr, gfn, gtlbe, 1, stlbe, ref);
577 vcpu_e500->g2h_tlb1_map[esel] |= (u64)1 << victim;
578 vcpu_e500->gtlb_priv[1][esel].ref.flags |= E500_TLB_BITMAP;
579 if (vcpu_e500->h2g_tlb1_rmap[victim]) {
580 unsigned int idx = vcpu_e500->h2g_tlb1_rmap[victim];
581 vcpu_e500->g2h_tlb1_map[idx] &= ~(1ULL << victim);
583 vcpu_e500->h2g_tlb1_rmap[victim] = esel;
588 static void kvmppc_recalc_tlb1map_range(struct kvmppc_vcpu_e500 *vcpu_e500)
590 int size = vcpu_e500->gtlb_params[1].entries;
595 vcpu_e500->tlb1_min_eaddr = ~0UL;
596 vcpu_e500->tlb1_max_eaddr = 0;
597 offset = vcpu_e500->gtlb_offset[1];
599 for (i = 0; i < size; i++) {
600 struct kvm_book3e_206_tlb_entry *tlbe =
601 &vcpu_e500->gtlb_arch[offset + i];
603 if (!get_tlb_v(tlbe))
606 eaddr = get_tlb_eaddr(tlbe);
607 vcpu_e500->tlb1_min_eaddr =
608 min(vcpu_e500->tlb1_min_eaddr, eaddr);
610 eaddr = get_tlb_end(tlbe);
611 vcpu_e500->tlb1_max_eaddr =
612 max(vcpu_e500->tlb1_max_eaddr, eaddr);
616 static int kvmppc_need_recalc_tlb1map_range(struct kvmppc_vcpu_e500 *vcpu_e500,
617 struct kvm_book3e_206_tlb_entry *gtlbe)
619 unsigned long start, end, size;
621 size = get_tlb_bytes(gtlbe);
622 start = get_tlb_eaddr(gtlbe) & ~(size - 1);
623 end = start + size - 1;
625 return vcpu_e500->tlb1_min_eaddr == start ||
626 vcpu_e500->tlb1_max_eaddr == end;
629 /* This function is supposed to be called for a adding a new valid tlb entry */
630 static void kvmppc_set_tlb1map_range(struct kvm_vcpu *vcpu,
631 struct kvm_book3e_206_tlb_entry *gtlbe)
633 unsigned long start, end, size;
634 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
636 if (!get_tlb_v(gtlbe))
639 size = get_tlb_bytes(gtlbe);
640 start = get_tlb_eaddr(gtlbe) & ~(size - 1);
641 end = start + size - 1;
643 vcpu_e500->tlb1_min_eaddr = min(vcpu_e500->tlb1_min_eaddr, start);
644 vcpu_e500->tlb1_max_eaddr = max(vcpu_e500->tlb1_max_eaddr, end);
647 static inline int kvmppc_e500_gtlbe_invalidate(
648 struct kvmppc_vcpu_e500 *vcpu_e500,
649 int tlbsel, int esel)
651 struct kvm_book3e_206_tlb_entry *gtlbe =
652 get_entry(vcpu_e500, tlbsel, esel);
654 if (unlikely(get_tlb_iprot(gtlbe)))
657 if (tlbsel == 1 && kvmppc_need_recalc_tlb1map_range(vcpu_e500, gtlbe))
658 kvmppc_recalc_tlb1map_range(vcpu_e500);
665 int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value)
669 if (value & MMUCSR0_TLB0FI)
670 for (esel = 0; esel < vcpu_e500->gtlb_params[0].entries; esel++)
671 kvmppc_e500_gtlbe_invalidate(vcpu_e500, 0, esel);
672 if (value & MMUCSR0_TLB1FI)
673 for (esel = 0; esel < vcpu_e500->gtlb_params[1].entries; esel++)
674 kvmppc_e500_gtlbe_invalidate(vcpu_e500, 1, esel);
676 /* Invalidate all vcpu id mappings */
677 kvmppc_e500_tlbil_all(vcpu_e500);
682 int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
684 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
689 ea = ((ra) ? kvmppc_get_gpr(vcpu, ra) : 0) + kvmppc_get_gpr(vcpu, rb);
691 ia = (ea >> 2) & 0x1;
693 /* since we only have two TLBs, only lower bit is used. */
694 tlbsel = (ea >> 3) & 0x1;
697 /* invalidate all entries */
698 for (esel = 0; esel < vcpu_e500->gtlb_params[tlbsel].entries;
700 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
703 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel,
704 get_cur_pid(vcpu), -1);
706 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
709 /* Invalidate all vcpu id mappings */
710 kvmppc_e500_tlbil_all(vcpu_e500);
715 static void tlbilx_all(struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel,
718 struct kvm_book3e_206_tlb_entry *tlbe;
721 /* invalidate all entries */
722 for (esel = 0; esel < vcpu_e500->gtlb_params[tlbsel].entries; esel++) {
723 tlbe = get_entry(vcpu_e500, tlbsel, esel);
724 tid = get_tlb_tid(tlbe);
725 if (rt == 0 || tid == pid) {
726 inval_gtlbe_on_host(vcpu_e500, tlbsel, esel);
727 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
732 static void tlbilx_one(struct kvmppc_vcpu_e500 *vcpu_e500, int pid,
738 ea = kvmppc_get_gpr(&vcpu_e500->vcpu, rb);
740 ea += kvmppc_get_gpr(&vcpu_e500->vcpu, ra);
742 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
743 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, -1);
745 inval_gtlbe_on_host(vcpu_e500, tlbsel, esel);
746 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
752 int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int rt, int ra, int rb)
754 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
755 int pid = get_cur_spid(vcpu);
757 if (rt == 0 || rt == 1) {
758 tlbilx_all(vcpu_e500, 0, pid, rt);
759 tlbilx_all(vcpu_e500, 1, pid, rt);
760 } else if (rt == 3) {
761 tlbilx_one(vcpu_e500, pid, ra, rb);
767 int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu)
769 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
771 struct kvm_book3e_206_tlb_entry *gtlbe;
773 tlbsel = get_tlb_tlbsel(vcpu);
774 esel = get_tlb_esel(vcpu, tlbsel);
776 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
777 vcpu->arch.shared->mas0 &= ~MAS0_NV(~0);
778 vcpu->arch.shared->mas0 |= MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
779 vcpu->arch.shared->mas1 = gtlbe->mas1;
780 vcpu->arch.shared->mas2 = gtlbe->mas2;
781 vcpu->arch.shared->mas7_3 = gtlbe->mas7_3;
786 int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
788 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
789 int as = !!get_cur_sas(vcpu);
790 unsigned int pid = get_cur_spid(vcpu);
792 struct kvm_book3e_206_tlb_entry *gtlbe = NULL;
795 ea = kvmppc_get_gpr(vcpu, rb);
797 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
798 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, as);
800 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
806 esel &= vcpu_e500->gtlb_params[tlbsel].ways - 1;
808 vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel)
809 | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
810 vcpu->arch.shared->mas1 = gtlbe->mas1;
811 vcpu->arch.shared->mas2 = gtlbe->mas2;
812 vcpu->arch.shared->mas7_3 = gtlbe->mas7_3;
816 /* since we only have two TLBs, only lower bit is used. */
817 tlbsel = vcpu->arch.shared->mas4 >> 28 & 0x1;
818 victim = (tlbsel == 0) ? gtlb0_get_next_victim(vcpu_e500) : 0;
820 vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel)
822 | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
823 vcpu->arch.shared->mas1 =
824 (vcpu->arch.shared->mas6 & MAS6_SPID0)
825 | (vcpu->arch.shared->mas6 & (MAS6_SAS ? MAS1_TS : 0))
826 | (vcpu->arch.shared->mas4 & MAS4_TSIZED(~0));
827 vcpu->arch.shared->mas2 &= MAS2_EPN;
828 vcpu->arch.shared->mas2 |= vcpu->arch.shared->mas4 &
830 vcpu->arch.shared->mas7_3 &= MAS3_U0 | MAS3_U1 |
834 kvmppc_set_exit_type(vcpu, EMULATED_TLBSX_EXITS);
838 /* sesel is for tlb1 only */
839 static void write_stlbe(struct kvmppc_vcpu_e500 *vcpu_e500,
840 struct kvm_book3e_206_tlb_entry *gtlbe,
841 struct kvm_book3e_206_tlb_entry *stlbe,
842 int stlbsel, int sesel)
847 stid = kvmppc_e500_get_tlb_stid(&vcpu_e500->vcpu, gtlbe);
849 stlbe->mas1 |= MAS1_TID(stid);
850 write_host_tlbe(vcpu_e500, stlbsel, sesel, stlbe);
854 int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
856 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
857 struct kvm_book3e_206_tlb_entry *gtlbe, stlbe;
858 int tlbsel, esel, stlbsel, sesel;
861 tlbsel = get_tlb_tlbsel(vcpu);
862 esel = get_tlb_esel(vcpu, tlbsel);
864 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
866 if (get_tlb_v(gtlbe)) {
867 inval_gtlbe_on_host(vcpu_e500, tlbsel, esel);
869 kvmppc_need_recalc_tlb1map_range(vcpu_e500, gtlbe))
873 gtlbe->mas1 = vcpu->arch.shared->mas1;
874 gtlbe->mas2 = vcpu->arch.shared->mas2;
875 gtlbe->mas7_3 = vcpu->arch.shared->mas7_3;
877 trace_kvm_booke206_gtlb_write(vcpu->arch.shared->mas0, gtlbe->mas1,
878 gtlbe->mas2, gtlbe->mas7_3);
882 * If a valid tlb1 entry is overwritten then recalculate the
883 * min/max TLB1 map address range otherwise no need to look
887 kvmppc_recalc_tlb1map_range(vcpu_e500);
889 kvmppc_set_tlb1map_range(vcpu, gtlbe);
892 /* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */
893 if (tlbe_is_host_safe(vcpu, gtlbe)) {
900 gtlbe->mas1 &= ~MAS1_TSIZE(~0);
901 gtlbe->mas1 |= MAS1_TSIZE(BOOK3E_PAGESZ_4K);
904 kvmppc_e500_tlb0_map(vcpu_e500, esel, &stlbe);
905 sesel = 0; /* unused */
911 eaddr = get_tlb_eaddr(gtlbe);
912 raddr = get_tlb_raddr(gtlbe);
914 /* Create a 4KB mapping on the host.
915 * If the guest wanted a large page,
916 * only the first 4KB is mapped here and the rest
917 * are mapped on the fly. */
919 sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr,
920 raddr >> PAGE_SHIFT, gtlbe, &stlbe, esel);
927 write_stlbe(vcpu_e500, gtlbe, &stlbe, stlbsel, sesel);
930 kvmppc_set_exit_type(vcpu, EMULATED_TLBWE_EXITS);
934 static int kvmppc_e500_tlb_search(struct kvm_vcpu *vcpu,
935 gva_t eaddr, unsigned int pid, int as)
937 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
940 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
941 esel = kvmppc_e500_tlb_index(vcpu_e500, eaddr, tlbsel, pid, as);
943 return index_of(tlbsel, esel);
949 /* 'linear_address' is actually an encoding of AS|PID|EADDR . */
950 int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
951 struct kvm_translation *tr)
958 eaddr = tr->linear_address;
959 pid = (tr->linear_address >> 32) & 0xff;
960 as = (tr->linear_address >> 40) & 0x1;
962 index = kvmppc_e500_tlb_search(vcpu, eaddr, pid, as);
968 tr->physical_address = kvmppc_mmu_xlate(vcpu, index, eaddr);
969 /* XXX what does "writeable" and "usermode" even mean? */
976 int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
978 unsigned int as = !!(vcpu->arch.shared->msr & MSR_IS);
980 return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
983 int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
985 unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS);
987 return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
990 void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu)
992 unsigned int as = !!(vcpu->arch.shared->msr & MSR_IS);
994 kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.pc, as);
997 void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu)
999 unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS);
1001 kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.fault_dear, as);
1004 gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index,
1007 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1008 struct kvm_book3e_206_tlb_entry *gtlbe;
1011 gtlbe = get_entry(vcpu_e500, tlbsel_of(index), esel_of(index));
1012 pgmask = get_tlb_bytes(gtlbe) - 1;
1014 return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
1017 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
1021 void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr,
1024 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1025 struct tlbe_priv *priv;
1026 struct kvm_book3e_206_tlb_entry *gtlbe, stlbe;
1027 int tlbsel = tlbsel_of(index);
1028 int esel = esel_of(index);
1031 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
1036 sesel = 0; /* unused */
1037 priv = &vcpu_e500->gtlb_priv[tlbsel][esel];
1039 kvmppc_e500_setup_stlbe(vcpu, gtlbe, BOOK3E_PAGESZ_4K,
1040 &priv->ref, eaddr, &stlbe);
1044 gfn_t gfn = gpaddr >> PAGE_SHIFT;
1047 sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr, gfn,
1048 gtlbe, &stlbe, esel);
1057 write_stlbe(vcpu_e500, gtlbe, &stlbe, stlbsel, sesel);
1060 static void free_gtlb(struct kvmppc_vcpu_e500 *vcpu_e500)
1064 clear_tlb1_bitmap(vcpu_e500);
1065 kfree(vcpu_e500->g2h_tlb1_map);
1067 clear_tlb_refs(vcpu_e500);
1068 kfree(vcpu_e500->gtlb_priv[0]);
1069 kfree(vcpu_e500->gtlb_priv[1]);
1071 if (vcpu_e500->shared_tlb_pages) {
1072 vfree((void *)(round_down((uintptr_t)vcpu_e500->gtlb_arch,
1075 for (i = 0; i < vcpu_e500->num_shared_tlb_pages; i++) {
1076 set_page_dirty_lock(vcpu_e500->shared_tlb_pages[i]);
1077 put_page(vcpu_e500->shared_tlb_pages[i]);
1080 vcpu_e500->num_shared_tlb_pages = 0;
1081 vcpu_e500->shared_tlb_pages = NULL;
1083 kfree(vcpu_e500->gtlb_arch);
1086 vcpu_e500->gtlb_arch = NULL;
1089 void kvmppc_get_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
1091 sregs->u.e.mas0 = vcpu->arch.shared->mas0;
1092 sregs->u.e.mas1 = vcpu->arch.shared->mas1;
1093 sregs->u.e.mas2 = vcpu->arch.shared->mas2;
1094 sregs->u.e.mas7_3 = vcpu->arch.shared->mas7_3;
1095 sregs->u.e.mas4 = vcpu->arch.shared->mas4;
1096 sregs->u.e.mas6 = vcpu->arch.shared->mas6;
1098 sregs->u.e.mmucfg = vcpu->arch.mmucfg;
1099 sregs->u.e.tlbcfg[0] = vcpu->arch.tlbcfg[0];
1100 sregs->u.e.tlbcfg[1] = vcpu->arch.tlbcfg[1];
1101 sregs->u.e.tlbcfg[2] = 0;
1102 sregs->u.e.tlbcfg[3] = 0;
1105 int kvmppc_set_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
1107 if (sregs->u.e.features & KVM_SREGS_E_ARCH206_MMU) {
1108 vcpu->arch.shared->mas0 = sregs->u.e.mas0;
1109 vcpu->arch.shared->mas1 = sregs->u.e.mas1;
1110 vcpu->arch.shared->mas2 = sregs->u.e.mas2;
1111 vcpu->arch.shared->mas7_3 = sregs->u.e.mas7_3;
1112 vcpu->arch.shared->mas4 = sregs->u.e.mas4;
1113 vcpu->arch.shared->mas6 = sregs->u.e.mas6;
1119 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
1120 struct kvm_config_tlb *cfg)
1122 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1123 struct kvm_book3e_206_tlb_params params;
1125 struct page **pages;
1126 struct tlbe_priv *privs[2] = {};
1127 u64 *g2h_bitmap = NULL;
1130 int num_pages, ret, i;
1132 if (cfg->mmu_type != KVM_MMU_FSL_BOOKE_NOHV)
1135 if (copy_from_user(¶ms, (void __user *)(uintptr_t)cfg->params,
1139 if (params.tlb_sizes[1] > 64)
1141 if (params.tlb_ways[1] != params.tlb_sizes[1])
1143 if (params.tlb_sizes[2] != 0 || params.tlb_sizes[3] != 0)
1145 if (params.tlb_ways[2] != 0 || params.tlb_ways[3] != 0)
1148 if (!is_power_of_2(params.tlb_ways[0]))
1151 sets = params.tlb_sizes[0] >> ilog2(params.tlb_ways[0]);
1152 if (!is_power_of_2(sets))
1155 array_len = params.tlb_sizes[0] + params.tlb_sizes[1];
1156 array_len *= sizeof(struct kvm_book3e_206_tlb_entry);
1158 if (cfg->array_len < array_len)
1161 num_pages = DIV_ROUND_UP(cfg->array + array_len - 1, PAGE_SIZE) -
1162 cfg->array / PAGE_SIZE;
1163 pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL);
1167 ret = get_user_pages_fast(cfg->array, num_pages, 1, pages);
1171 if (ret != num_pages) {
1177 virt = vmap(pages, num_pages, VM_MAP, PAGE_KERNEL);
1181 privs[0] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[0],
1183 privs[1] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[1],
1186 if (!privs[0] || !privs[1])
1189 g2h_bitmap = kzalloc(sizeof(u64) * params.tlb_sizes[1],
1194 free_gtlb(vcpu_e500);
1196 vcpu_e500->gtlb_priv[0] = privs[0];
1197 vcpu_e500->gtlb_priv[1] = privs[1];
1198 vcpu_e500->g2h_tlb1_map = g2h_bitmap;
1200 vcpu_e500->gtlb_arch = (struct kvm_book3e_206_tlb_entry *)
1201 (virt + (cfg->array & (PAGE_SIZE - 1)));
1203 vcpu_e500->gtlb_params[0].entries = params.tlb_sizes[0];
1204 vcpu_e500->gtlb_params[1].entries = params.tlb_sizes[1];
1206 vcpu_e500->gtlb_offset[0] = 0;
1207 vcpu_e500->gtlb_offset[1] = params.tlb_sizes[0];
1209 vcpu->arch.mmucfg = mfspr(SPRN_MMUCFG) & ~MMUCFG_LPIDSIZE;
1211 vcpu->arch.tlbcfg[0] &= ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1212 if (params.tlb_sizes[0] <= 2048)
1213 vcpu->arch.tlbcfg[0] |= params.tlb_sizes[0];
1214 vcpu->arch.tlbcfg[0] |= params.tlb_ways[0] << TLBnCFG_ASSOC_SHIFT;
1216 vcpu->arch.tlbcfg[1] &= ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1217 vcpu->arch.tlbcfg[1] |= params.tlb_sizes[1];
1218 vcpu->arch.tlbcfg[1] |= params.tlb_ways[1] << TLBnCFG_ASSOC_SHIFT;
1220 vcpu_e500->shared_tlb_pages = pages;
1221 vcpu_e500->num_shared_tlb_pages = num_pages;
1223 vcpu_e500->gtlb_params[0].ways = params.tlb_ways[0];
1224 vcpu_e500->gtlb_params[0].sets = sets;
1226 vcpu_e500->gtlb_params[1].ways = params.tlb_sizes[1];
1227 vcpu_e500->gtlb_params[1].sets = 1;
1229 kvmppc_recalc_tlb1map_range(vcpu_e500);
1236 for (i = 0; i < num_pages; i++)
1244 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
1245 struct kvm_dirty_tlb *dirty)
1247 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1248 kvmppc_recalc_tlb1map_range(vcpu_e500);
1249 clear_tlb_refs(vcpu_e500);
1253 int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
1255 struct kvm_vcpu *vcpu = &vcpu_e500->vcpu;
1256 int entry_size = sizeof(struct kvm_book3e_206_tlb_entry);
1257 int entries = KVM_E500_TLB0_SIZE + KVM_E500_TLB1_SIZE;
1259 host_tlb_params[0].entries = mfspr(SPRN_TLB0CFG) & TLBnCFG_N_ENTRY;
1260 host_tlb_params[1].entries = mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY;
1263 * This should never happen on real e500 hardware, but is
1264 * architecturally possible -- e.g. in some weird nested
1265 * virtualization case.
1267 if (host_tlb_params[0].entries == 0 ||
1268 host_tlb_params[1].entries == 0) {
1269 pr_err("%s: need to know host tlb size\n", __func__);
1273 host_tlb_params[0].ways = (mfspr(SPRN_TLB0CFG) & TLBnCFG_ASSOC) >>
1274 TLBnCFG_ASSOC_SHIFT;
1275 host_tlb_params[1].ways = host_tlb_params[1].entries;
1277 if (!is_power_of_2(host_tlb_params[0].entries) ||
1278 !is_power_of_2(host_tlb_params[0].ways) ||
1279 host_tlb_params[0].entries < host_tlb_params[0].ways ||
1280 host_tlb_params[0].ways == 0) {
1281 pr_err("%s: bad tlb0 host config: %u entries %u ways\n",
1282 __func__, host_tlb_params[0].entries,
1283 host_tlb_params[0].ways);
1287 host_tlb_params[0].sets =
1288 host_tlb_params[0].entries / host_tlb_params[0].ways;
1289 host_tlb_params[1].sets = 1;
1291 vcpu_e500->gtlb_params[0].entries = KVM_E500_TLB0_SIZE;
1292 vcpu_e500->gtlb_params[1].entries = KVM_E500_TLB1_SIZE;
1294 vcpu_e500->gtlb_params[0].ways = KVM_E500_TLB0_WAY_NUM;
1295 vcpu_e500->gtlb_params[0].sets =
1296 KVM_E500_TLB0_SIZE / KVM_E500_TLB0_WAY_NUM;
1298 vcpu_e500->gtlb_params[1].ways = KVM_E500_TLB1_SIZE;
1299 vcpu_e500->gtlb_params[1].sets = 1;
1301 vcpu_e500->gtlb_arch = kmalloc(entries * entry_size, GFP_KERNEL);
1302 if (!vcpu_e500->gtlb_arch)
1305 vcpu_e500->gtlb_offset[0] = 0;
1306 vcpu_e500->gtlb_offset[1] = KVM_E500_TLB0_SIZE;
1308 vcpu_e500->tlb_refs[0] =
1309 kzalloc(sizeof(struct tlbe_ref) * host_tlb_params[0].entries,
1311 if (!vcpu_e500->tlb_refs[0])
1314 vcpu_e500->tlb_refs[1] =
1315 kzalloc(sizeof(struct tlbe_ref) * host_tlb_params[1].entries,
1317 if (!vcpu_e500->tlb_refs[1])
1320 vcpu_e500->gtlb_priv[0] = kzalloc(sizeof(struct tlbe_ref) *
1321 vcpu_e500->gtlb_params[0].entries,
1323 if (!vcpu_e500->gtlb_priv[0])
1326 vcpu_e500->gtlb_priv[1] = kzalloc(sizeof(struct tlbe_ref) *
1327 vcpu_e500->gtlb_params[1].entries,
1329 if (!vcpu_e500->gtlb_priv[1])
1332 vcpu_e500->g2h_tlb1_map = kzalloc(sizeof(unsigned int) *
1333 vcpu_e500->gtlb_params[1].entries,
1335 if (!vcpu_e500->g2h_tlb1_map)
1338 vcpu_e500->h2g_tlb1_rmap = kzalloc(sizeof(unsigned int) *
1339 host_tlb_params[1].entries,
1341 if (!vcpu_e500->h2g_tlb1_rmap)
1344 /* Init TLB configuration register */
1345 vcpu->arch.tlbcfg[0] = mfspr(SPRN_TLB0CFG) &
1346 ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1347 vcpu->arch.tlbcfg[0] |= vcpu_e500->gtlb_params[0].entries;
1348 vcpu->arch.tlbcfg[0] |=
1349 vcpu_e500->gtlb_params[0].ways << TLBnCFG_ASSOC_SHIFT;
1351 vcpu->arch.tlbcfg[1] = mfspr(SPRN_TLB1CFG) &
1352 ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1353 vcpu->arch.tlbcfg[1] |= vcpu_e500->gtlb_params[1].entries;
1354 vcpu->arch.tlbcfg[1] |=
1355 vcpu_e500->gtlb_params[1].ways << TLBnCFG_ASSOC_SHIFT;
1357 kvmppc_recalc_tlb1map_range(vcpu_e500);
1361 free_gtlb(vcpu_e500);
1362 kfree(vcpu_e500->tlb_refs[0]);
1363 kfree(vcpu_e500->tlb_refs[1]);
1367 void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500)
1369 free_gtlb(vcpu_e500);
1370 kfree(vcpu_e500->h2g_tlb1_rmap);
1371 kfree(vcpu_e500->tlb_refs[0]);
1372 kfree(vcpu_e500->tlb_refs[1]);