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 kvm_set_pfn_dirty(pfn);
310 static inline void kvmppc_e500_ref_release(struct tlbe_ref *ref)
312 if (ref->flags & E500_TLB_VALID) {
313 trace_kvm_booke206_ref_release(ref->pfn, ref->flags);
318 static void clear_tlb1_bitmap(struct kvmppc_vcpu_e500 *vcpu_e500)
320 if (vcpu_e500->g2h_tlb1_map)
321 memset(vcpu_e500->g2h_tlb1_map, 0,
322 sizeof(u64) * vcpu_e500->gtlb_params[1].entries);
323 if (vcpu_e500->h2g_tlb1_rmap)
324 memset(vcpu_e500->h2g_tlb1_rmap, 0,
325 sizeof(unsigned int) * host_tlb_params[1].entries);
328 static void clear_tlb_privs(struct kvmppc_vcpu_e500 *vcpu_e500)
333 for (i = 0; i < vcpu_e500->gtlb_params[tlbsel].entries; i++) {
334 struct tlbe_ref *ref =
335 &vcpu_e500->gtlb_priv[tlbsel][i].ref;
336 kvmppc_e500_ref_release(ref);
340 static void clear_tlb_refs(struct kvmppc_vcpu_e500 *vcpu_e500)
345 kvmppc_e500_tlbil_all(vcpu_e500);
347 for (i = 0; i < host_tlb_params[stlbsel].entries; i++) {
348 struct tlbe_ref *ref =
349 &vcpu_e500->tlb_refs[stlbsel][i];
350 kvmppc_e500_ref_release(ref);
353 clear_tlb_privs(vcpu_e500);
356 void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu)
358 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
359 clear_tlb_refs(vcpu_e500);
360 clear_tlb1_bitmap(vcpu_e500);
363 static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
364 unsigned int eaddr, int as)
366 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
367 unsigned int victim, tsized;
370 /* since we only have two TLBs, only lower bit is used. */
371 tlbsel = (vcpu->arch.shared->mas4 >> 28) & 0x1;
372 victim = (tlbsel == 0) ? gtlb0_get_next_victim(vcpu_e500) : 0;
373 tsized = (vcpu->arch.shared->mas4 >> 7) & 0x1f;
375 vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
376 | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
377 vcpu->arch.shared->mas1 = MAS1_VALID | (as ? MAS1_TS : 0)
378 | MAS1_TID(get_tlbmiss_tid(vcpu))
379 | MAS1_TSIZE(tsized);
380 vcpu->arch.shared->mas2 = (eaddr & MAS2_EPN)
381 | (vcpu->arch.shared->mas4 & MAS2_ATTRIB_MASK);
382 vcpu->arch.shared->mas7_3 &= MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3;
383 vcpu->arch.shared->mas6 = (vcpu->arch.shared->mas6 & MAS6_SPID1)
384 | (get_cur_pid(vcpu) << 16)
385 | (as ? MAS6_SAS : 0);
388 /* TID must be supplied by the caller */
389 static inline void kvmppc_e500_setup_stlbe(
390 struct kvm_vcpu *vcpu,
391 struct kvm_book3e_206_tlb_entry *gtlbe,
392 int tsize, struct tlbe_ref *ref, u64 gvaddr,
393 struct kvm_book3e_206_tlb_entry *stlbe)
395 pfn_t pfn = ref->pfn;
396 u32 pr = vcpu->arch.shared->msr & MSR_PR;
398 BUG_ON(!(ref->flags & E500_TLB_VALID));
400 /* Force IPROT=0 for all guest mappings. */
401 stlbe->mas1 = MAS1_TSIZE(tsize) | get_tlb_sts(gtlbe) | MAS1_VALID;
402 stlbe->mas2 = (gvaddr & MAS2_EPN) |
403 e500_shadow_mas2_attrib(gtlbe->mas2, pr);
404 stlbe->mas7_3 = ((u64)pfn << PAGE_SHIFT) |
405 e500_shadow_mas3_attrib(gtlbe->mas7_3, pr);
407 #ifdef CONFIG_KVM_BOOKE_HV
408 stlbe->mas8 = MAS8_TGS | vcpu->kvm->arch.lpid;
412 static inline void kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
413 u64 gvaddr, gfn_t gfn, struct kvm_book3e_206_tlb_entry *gtlbe,
414 int tlbsel, struct kvm_book3e_206_tlb_entry *stlbe,
415 struct tlbe_ref *ref)
417 struct kvm_memory_slot *slot;
418 unsigned long pfn, hva;
420 int tsize = BOOK3E_PAGESZ_4K;
423 * Translate guest physical to true physical, acquiring
424 * a page reference if it is normal, non-reserved memory.
426 * gfn_to_memslot() must succeed because otherwise we wouldn't
427 * have gotten this far. Eventually we should just pass the slot
428 * pointer through from the first lookup.
430 slot = gfn_to_memslot(vcpu_e500->vcpu.kvm, gfn);
431 hva = gfn_to_hva_memslot(slot, gfn);
434 struct vm_area_struct *vma;
435 down_read(¤t->mm->mmap_sem);
437 vma = find_vma(current->mm, hva);
438 if (vma && hva >= vma->vm_start &&
439 (vma->vm_flags & VM_PFNMAP)) {
441 * This VMA is a physically contiguous region (e.g.
442 * /dev/mem) that bypasses normal Linux page
443 * management. Find the overlap between the
444 * vma and the memslot.
447 unsigned long start, end;
448 unsigned long slot_start, slot_end;
452 start = vma->vm_pgoff;
454 ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT);
456 pfn = start + ((hva - vma->vm_start) >> PAGE_SHIFT);
458 slot_start = pfn - (gfn - slot->base_gfn);
459 slot_end = slot_start + slot->npages;
461 if (start < slot_start)
466 tsize = (gtlbe->mas1 & MAS1_TSIZE_MASK) >>
470 * e500 doesn't implement the lowest tsize bit,
473 tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1);
476 * Now find the largest tsize (up to what the guest
477 * requested) that will cover gfn, stay within the
478 * range, and for which gfn and pfn are mutually
482 for (; tsize > BOOK3E_PAGESZ_4K; tsize -= 2) {
483 unsigned long gfn_start, gfn_end, tsize_pages;
484 tsize_pages = 1 << (tsize - 2);
486 gfn_start = gfn & ~(tsize_pages - 1);
487 gfn_end = gfn_start + tsize_pages;
489 if (gfn_start + pfn - gfn < start)
491 if (gfn_end + pfn - gfn > end)
493 if ((gfn & (tsize_pages - 1)) !=
494 (pfn & (tsize_pages - 1)))
497 gvaddr &= ~((tsize_pages << PAGE_SHIFT) - 1);
498 pfn &= ~(tsize_pages - 1);
501 } else if (vma && hva >= vma->vm_start &&
502 (vma->vm_flags & VM_HUGETLB)) {
503 unsigned long psize = vma_kernel_pagesize(vma);
505 tsize = (gtlbe->mas1 & MAS1_TSIZE_MASK) >>
509 * Take the largest page size that satisfies both host
512 tsize = min(__ilog2(psize) - 10, tsize);
515 * e500 doesn't implement the lowest tsize bit,
518 tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1);
521 up_read(¤t->mm->mmap_sem);
524 if (likely(!pfnmap)) {
525 unsigned long tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
526 pfn = gfn_to_pfn_memslot(slot, gfn);
527 if (is_error_pfn(pfn)) {
528 printk(KERN_ERR "Couldn't get real page for gfn %lx!\n",
533 /* Align guest and physical address to page map boundaries */
534 pfn &= ~(tsize_pages - 1);
535 gvaddr &= ~((tsize_pages << PAGE_SHIFT) - 1);
538 /* Drop old ref and setup new one. */
539 kvmppc_e500_ref_release(ref);
540 kvmppc_e500_ref_setup(ref, gtlbe, pfn);
542 kvmppc_e500_setup_stlbe(&vcpu_e500->vcpu, gtlbe, tsize,
545 /* Clear i-cache for new pages */
546 kvmppc_mmu_flush_icache(pfn);
548 /* Drop refcount on page, so that mmu notifiers can clear it */
549 kvm_release_pfn_clean(pfn);
552 /* XXX only map the one-one case, for now use TLB0 */
553 static void kvmppc_e500_tlb0_map(struct kvmppc_vcpu_e500 *vcpu_e500,
555 struct kvm_book3e_206_tlb_entry *stlbe)
557 struct kvm_book3e_206_tlb_entry *gtlbe;
558 struct tlbe_ref *ref;
560 gtlbe = get_entry(vcpu_e500, 0, esel);
561 ref = &vcpu_e500->gtlb_priv[0][esel].ref;
563 kvmppc_e500_shadow_map(vcpu_e500, get_tlb_eaddr(gtlbe),
564 get_tlb_raddr(gtlbe) >> PAGE_SHIFT,
565 gtlbe, 0, stlbe, ref);
568 /* Caller must ensure that the specified guest TLB entry is safe to insert into
570 /* XXX for both one-one and one-to-many , for now use TLB1 */
571 static int kvmppc_e500_tlb1_map(struct kvmppc_vcpu_e500 *vcpu_e500,
572 u64 gvaddr, gfn_t gfn, struct kvm_book3e_206_tlb_entry *gtlbe,
573 struct kvm_book3e_206_tlb_entry *stlbe, int esel)
575 struct tlbe_ref *ref;
578 victim = vcpu_e500->host_tlb1_nv++;
580 if (unlikely(vcpu_e500->host_tlb1_nv >= tlb1_max_shadow_size()))
581 vcpu_e500->host_tlb1_nv = 0;
583 ref = &vcpu_e500->tlb_refs[1][victim];
584 kvmppc_e500_shadow_map(vcpu_e500, gvaddr, gfn, gtlbe, 1, stlbe, ref);
586 vcpu_e500->g2h_tlb1_map[esel] |= (u64)1 << victim;
587 vcpu_e500->gtlb_priv[1][esel].ref.flags |= E500_TLB_BITMAP;
588 if (vcpu_e500->h2g_tlb1_rmap[victim]) {
589 unsigned int idx = vcpu_e500->h2g_tlb1_rmap[victim];
590 vcpu_e500->g2h_tlb1_map[idx] &= ~(1ULL << victim);
592 vcpu_e500->h2g_tlb1_rmap[victim] = esel;
597 static void kvmppc_recalc_tlb1map_range(struct kvmppc_vcpu_e500 *vcpu_e500)
599 int size = vcpu_e500->gtlb_params[1].entries;
604 vcpu_e500->tlb1_min_eaddr = ~0UL;
605 vcpu_e500->tlb1_max_eaddr = 0;
606 offset = vcpu_e500->gtlb_offset[1];
608 for (i = 0; i < size; i++) {
609 struct kvm_book3e_206_tlb_entry *tlbe =
610 &vcpu_e500->gtlb_arch[offset + i];
612 if (!get_tlb_v(tlbe))
615 eaddr = get_tlb_eaddr(tlbe);
616 vcpu_e500->tlb1_min_eaddr =
617 min(vcpu_e500->tlb1_min_eaddr, eaddr);
619 eaddr = get_tlb_end(tlbe);
620 vcpu_e500->tlb1_max_eaddr =
621 max(vcpu_e500->tlb1_max_eaddr, eaddr);
625 static int kvmppc_need_recalc_tlb1map_range(struct kvmppc_vcpu_e500 *vcpu_e500,
626 struct kvm_book3e_206_tlb_entry *gtlbe)
628 unsigned long start, end, size;
630 size = get_tlb_bytes(gtlbe);
631 start = get_tlb_eaddr(gtlbe) & ~(size - 1);
632 end = start + size - 1;
634 return vcpu_e500->tlb1_min_eaddr == start ||
635 vcpu_e500->tlb1_max_eaddr == end;
638 /* This function is supposed to be called for a adding a new valid tlb entry */
639 static void kvmppc_set_tlb1map_range(struct kvm_vcpu *vcpu,
640 struct kvm_book3e_206_tlb_entry *gtlbe)
642 unsigned long start, end, size;
643 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
645 if (!get_tlb_v(gtlbe))
648 size = get_tlb_bytes(gtlbe);
649 start = get_tlb_eaddr(gtlbe) & ~(size - 1);
650 end = start + size - 1;
652 vcpu_e500->tlb1_min_eaddr = min(vcpu_e500->tlb1_min_eaddr, start);
653 vcpu_e500->tlb1_max_eaddr = max(vcpu_e500->tlb1_max_eaddr, end);
656 static inline int kvmppc_e500_gtlbe_invalidate(
657 struct kvmppc_vcpu_e500 *vcpu_e500,
658 int tlbsel, int esel)
660 struct kvm_book3e_206_tlb_entry *gtlbe =
661 get_entry(vcpu_e500, tlbsel, esel);
663 if (unlikely(get_tlb_iprot(gtlbe)))
666 if (tlbsel == 1 && kvmppc_need_recalc_tlb1map_range(vcpu_e500, gtlbe))
667 kvmppc_recalc_tlb1map_range(vcpu_e500);
674 int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value)
678 if (value & MMUCSR0_TLB0FI)
679 for (esel = 0; esel < vcpu_e500->gtlb_params[0].entries; esel++)
680 kvmppc_e500_gtlbe_invalidate(vcpu_e500, 0, esel);
681 if (value & MMUCSR0_TLB1FI)
682 for (esel = 0; esel < vcpu_e500->gtlb_params[1].entries; esel++)
683 kvmppc_e500_gtlbe_invalidate(vcpu_e500, 1, esel);
685 /* Invalidate all vcpu id mappings */
686 kvmppc_e500_tlbil_all(vcpu_e500);
691 int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
693 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
698 ea = ((ra) ? kvmppc_get_gpr(vcpu, ra) : 0) + kvmppc_get_gpr(vcpu, rb);
700 ia = (ea >> 2) & 0x1;
702 /* since we only have two TLBs, only lower bit is used. */
703 tlbsel = (ea >> 3) & 0x1;
706 /* invalidate all entries */
707 for (esel = 0; esel < vcpu_e500->gtlb_params[tlbsel].entries;
709 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
712 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel,
713 get_cur_pid(vcpu), -1);
715 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
718 /* Invalidate all vcpu id mappings */
719 kvmppc_e500_tlbil_all(vcpu_e500);
724 static void tlbilx_all(struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel,
727 struct kvm_book3e_206_tlb_entry *tlbe;
730 /* invalidate all entries */
731 for (esel = 0; esel < vcpu_e500->gtlb_params[tlbsel].entries; esel++) {
732 tlbe = get_entry(vcpu_e500, tlbsel, esel);
733 tid = get_tlb_tid(tlbe);
734 if (rt == 0 || tid == pid) {
735 inval_gtlbe_on_host(vcpu_e500, tlbsel, esel);
736 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
741 static void tlbilx_one(struct kvmppc_vcpu_e500 *vcpu_e500, int pid,
747 ea = kvmppc_get_gpr(&vcpu_e500->vcpu, rb);
749 ea += kvmppc_get_gpr(&vcpu_e500->vcpu, ra);
751 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
752 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, -1);
754 inval_gtlbe_on_host(vcpu_e500, tlbsel, esel);
755 kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
761 int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int rt, int ra, int rb)
763 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
764 int pid = get_cur_spid(vcpu);
766 if (rt == 0 || rt == 1) {
767 tlbilx_all(vcpu_e500, 0, pid, rt);
768 tlbilx_all(vcpu_e500, 1, pid, rt);
769 } else if (rt == 3) {
770 tlbilx_one(vcpu_e500, pid, ra, rb);
776 int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu)
778 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
780 struct kvm_book3e_206_tlb_entry *gtlbe;
782 tlbsel = get_tlb_tlbsel(vcpu);
783 esel = get_tlb_esel(vcpu, tlbsel);
785 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
786 vcpu->arch.shared->mas0 &= ~MAS0_NV(~0);
787 vcpu->arch.shared->mas0 |= MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
788 vcpu->arch.shared->mas1 = gtlbe->mas1;
789 vcpu->arch.shared->mas2 = gtlbe->mas2;
790 vcpu->arch.shared->mas7_3 = gtlbe->mas7_3;
795 int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
797 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
798 int as = !!get_cur_sas(vcpu);
799 unsigned int pid = get_cur_spid(vcpu);
801 struct kvm_book3e_206_tlb_entry *gtlbe = NULL;
804 ea = kvmppc_get_gpr(vcpu, rb);
806 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
807 esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, as);
809 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
815 esel &= vcpu_e500->gtlb_params[tlbsel].ways - 1;
817 vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel)
818 | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
819 vcpu->arch.shared->mas1 = gtlbe->mas1;
820 vcpu->arch.shared->mas2 = gtlbe->mas2;
821 vcpu->arch.shared->mas7_3 = gtlbe->mas7_3;
825 /* since we only have two TLBs, only lower bit is used. */
826 tlbsel = vcpu->arch.shared->mas4 >> 28 & 0x1;
827 victim = (tlbsel == 0) ? gtlb0_get_next_victim(vcpu_e500) : 0;
829 vcpu->arch.shared->mas0 = MAS0_TLBSEL(tlbsel)
831 | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
832 vcpu->arch.shared->mas1 =
833 (vcpu->arch.shared->mas6 & MAS6_SPID0)
834 | (vcpu->arch.shared->mas6 & (MAS6_SAS ? MAS1_TS : 0))
835 | (vcpu->arch.shared->mas4 & MAS4_TSIZED(~0));
836 vcpu->arch.shared->mas2 &= MAS2_EPN;
837 vcpu->arch.shared->mas2 |= vcpu->arch.shared->mas4 &
839 vcpu->arch.shared->mas7_3 &= MAS3_U0 | MAS3_U1 |
843 kvmppc_set_exit_type(vcpu, EMULATED_TLBSX_EXITS);
847 /* sesel is for tlb1 only */
848 static void write_stlbe(struct kvmppc_vcpu_e500 *vcpu_e500,
849 struct kvm_book3e_206_tlb_entry *gtlbe,
850 struct kvm_book3e_206_tlb_entry *stlbe,
851 int stlbsel, int sesel)
856 stid = kvmppc_e500_get_tlb_stid(&vcpu_e500->vcpu, gtlbe);
858 stlbe->mas1 |= MAS1_TID(stid);
859 write_host_tlbe(vcpu_e500, stlbsel, sesel, stlbe);
863 int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
865 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
866 struct kvm_book3e_206_tlb_entry *gtlbe, stlbe;
867 int tlbsel, esel, stlbsel, sesel;
870 tlbsel = get_tlb_tlbsel(vcpu);
871 esel = get_tlb_esel(vcpu, tlbsel);
873 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
875 if (get_tlb_v(gtlbe)) {
876 inval_gtlbe_on_host(vcpu_e500, tlbsel, esel);
878 kvmppc_need_recalc_tlb1map_range(vcpu_e500, gtlbe))
882 gtlbe->mas1 = vcpu->arch.shared->mas1;
883 gtlbe->mas2 = vcpu->arch.shared->mas2;
884 gtlbe->mas7_3 = vcpu->arch.shared->mas7_3;
886 trace_kvm_booke206_gtlb_write(vcpu->arch.shared->mas0, gtlbe->mas1,
887 gtlbe->mas2, gtlbe->mas7_3);
891 * If a valid tlb1 entry is overwritten then recalculate the
892 * min/max TLB1 map address range otherwise no need to look
896 kvmppc_recalc_tlb1map_range(vcpu_e500);
898 kvmppc_set_tlb1map_range(vcpu, gtlbe);
901 /* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */
902 if (tlbe_is_host_safe(vcpu, gtlbe)) {
909 gtlbe->mas1 &= ~MAS1_TSIZE(~0);
910 gtlbe->mas1 |= MAS1_TSIZE(BOOK3E_PAGESZ_4K);
913 kvmppc_e500_tlb0_map(vcpu_e500, esel, &stlbe);
914 sesel = 0; /* unused */
920 eaddr = get_tlb_eaddr(gtlbe);
921 raddr = get_tlb_raddr(gtlbe);
923 /* Create a 4KB mapping on the host.
924 * If the guest wanted a large page,
925 * only the first 4KB is mapped here and the rest
926 * are mapped on the fly. */
928 sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr,
929 raddr >> PAGE_SHIFT, gtlbe, &stlbe, esel);
936 write_stlbe(vcpu_e500, gtlbe, &stlbe, stlbsel, sesel);
939 kvmppc_set_exit_type(vcpu, EMULATED_TLBWE_EXITS);
943 static int kvmppc_e500_tlb_search(struct kvm_vcpu *vcpu,
944 gva_t eaddr, unsigned int pid, int as)
946 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
949 for (tlbsel = 0; tlbsel < 2; tlbsel++) {
950 esel = kvmppc_e500_tlb_index(vcpu_e500, eaddr, tlbsel, pid, as);
952 return index_of(tlbsel, esel);
958 /* 'linear_address' is actually an encoding of AS|PID|EADDR . */
959 int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
960 struct kvm_translation *tr)
967 eaddr = tr->linear_address;
968 pid = (tr->linear_address >> 32) & 0xff;
969 as = (tr->linear_address >> 40) & 0x1;
971 index = kvmppc_e500_tlb_search(vcpu, eaddr, pid, as);
977 tr->physical_address = kvmppc_mmu_xlate(vcpu, index, eaddr);
978 /* XXX what does "writeable" and "usermode" even mean? */
985 int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
987 unsigned int as = !!(vcpu->arch.shared->msr & MSR_IS);
989 return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
992 int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
994 unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS);
996 return kvmppc_e500_tlb_search(vcpu, eaddr, get_cur_pid(vcpu), as);
999 void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu)
1001 unsigned int as = !!(vcpu->arch.shared->msr & MSR_IS);
1003 kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.pc, as);
1006 void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu)
1008 unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS);
1010 kvmppc_e500_deliver_tlb_miss(vcpu, vcpu->arch.fault_dear, as);
1013 gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index,
1016 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1017 struct kvm_book3e_206_tlb_entry *gtlbe;
1020 gtlbe = get_entry(vcpu_e500, tlbsel_of(index), esel_of(index));
1021 pgmask = get_tlb_bytes(gtlbe) - 1;
1023 return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
1026 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
1030 void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr,
1033 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1034 struct tlbe_priv *priv;
1035 struct kvm_book3e_206_tlb_entry *gtlbe, stlbe;
1036 int tlbsel = tlbsel_of(index);
1037 int esel = esel_of(index);
1040 gtlbe = get_entry(vcpu_e500, tlbsel, esel);
1045 sesel = 0; /* unused */
1046 priv = &vcpu_e500->gtlb_priv[tlbsel][esel];
1048 /* Only triggers after clear_tlb_refs */
1049 if (unlikely(!(priv->ref.flags & E500_TLB_VALID)))
1050 kvmppc_e500_tlb0_map(vcpu_e500, esel, &stlbe);
1052 kvmppc_e500_setup_stlbe(vcpu, gtlbe, BOOK3E_PAGESZ_4K,
1053 &priv->ref, eaddr, &stlbe);
1057 gfn_t gfn = gpaddr >> PAGE_SHIFT;
1060 sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr, gfn,
1061 gtlbe, &stlbe, esel);
1070 write_stlbe(vcpu_e500, gtlbe, &stlbe, stlbsel, sesel);
1073 /************* MMU Notifiers *************/
1075 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
1077 trace_kvm_unmap_hva(hva);
1080 * Flush all shadow tlb entries everywhere. This is slow, but
1081 * we are 100% sure that we catch the to be unmapped page
1083 kvm_flush_remote_tlbs(kvm);
1088 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
1090 /* kvm_unmap_hva flushes everything anyways */
1091 kvm_unmap_hva(kvm, start);
1096 int kvm_age_hva(struct kvm *kvm, unsigned long hva)
1098 /* XXX could be more clever ;) */
1102 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
1104 /* XXX could be more clever ;) */
1108 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
1110 /* The page will get remapped properly on its next fault */
1111 kvm_unmap_hva(kvm, hva);
1114 /*****************************************/
1116 static void free_gtlb(struct kvmppc_vcpu_e500 *vcpu_e500)
1120 clear_tlb1_bitmap(vcpu_e500);
1121 kfree(vcpu_e500->g2h_tlb1_map);
1123 clear_tlb_refs(vcpu_e500);
1124 kfree(vcpu_e500->gtlb_priv[0]);
1125 kfree(vcpu_e500->gtlb_priv[1]);
1127 if (vcpu_e500->shared_tlb_pages) {
1128 vfree((void *)(round_down((uintptr_t)vcpu_e500->gtlb_arch,
1131 for (i = 0; i < vcpu_e500->num_shared_tlb_pages; i++) {
1132 set_page_dirty_lock(vcpu_e500->shared_tlb_pages[i]);
1133 put_page(vcpu_e500->shared_tlb_pages[i]);
1136 vcpu_e500->num_shared_tlb_pages = 0;
1138 kfree(vcpu_e500->shared_tlb_pages);
1139 vcpu_e500->shared_tlb_pages = NULL;
1141 kfree(vcpu_e500->gtlb_arch);
1144 vcpu_e500->gtlb_arch = NULL;
1147 void kvmppc_get_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
1149 sregs->u.e.mas0 = vcpu->arch.shared->mas0;
1150 sregs->u.e.mas1 = vcpu->arch.shared->mas1;
1151 sregs->u.e.mas2 = vcpu->arch.shared->mas2;
1152 sregs->u.e.mas7_3 = vcpu->arch.shared->mas7_3;
1153 sregs->u.e.mas4 = vcpu->arch.shared->mas4;
1154 sregs->u.e.mas6 = vcpu->arch.shared->mas6;
1156 sregs->u.e.mmucfg = vcpu->arch.mmucfg;
1157 sregs->u.e.tlbcfg[0] = vcpu->arch.tlbcfg[0];
1158 sregs->u.e.tlbcfg[1] = vcpu->arch.tlbcfg[1];
1159 sregs->u.e.tlbcfg[2] = 0;
1160 sregs->u.e.tlbcfg[3] = 0;
1163 int kvmppc_set_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
1165 if (sregs->u.e.features & KVM_SREGS_E_ARCH206_MMU) {
1166 vcpu->arch.shared->mas0 = sregs->u.e.mas0;
1167 vcpu->arch.shared->mas1 = sregs->u.e.mas1;
1168 vcpu->arch.shared->mas2 = sregs->u.e.mas2;
1169 vcpu->arch.shared->mas7_3 = sregs->u.e.mas7_3;
1170 vcpu->arch.shared->mas4 = sregs->u.e.mas4;
1171 vcpu->arch.shared->mas6 = sregs->u.e.mas6;
1177 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
1178 struct kvm_config_tlb *cfg)
1180 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1181 struct kvm_book3e_206_tlb_params params;
1183 struct page **pages;
1184 struct tlbe_priv *privs[2] = {};
1185 u64 *g2h_bitmap = NULL;
1188 int num_pages, ret, i;
1190 if (cfg->mmu_type != KVM_MMU_FSL_BOOKE_NOHV)
1193 if (copy_from_user(¶ms, (void __user *)(uintptr_t)cfg->params,
1197 if (params.tlb_sizes[1] > 64)
1199 if (params.tlb_ways[1] != params.tlb_sizes[1])
1201 if (params.tlb_sizes[2] != 0 || params.tlb_sizes[3] != 0)
1203 if (params.tlb_ways[2] != 0 || params.tlb_ways[3] != 0)
1206 if (!is_power_of_2(params.tlb_ways[0]))
1209 sets = params.tlb_sizes[0] >> ilog2(params.tlb_ways[0]);
1210 if (!is_power_of_2(sets))
1213 array_len = params.tlb_sizes[0] + params.tlb_sizes[1];
1214 array_len *= sizeof(struct kvm_book3e_206_tlb_entry);
1216 if (cfg->array_len < array_len)
1219 num_pages = DIV_ROUND_UP(cfg->array + array_len - 1, PAGE_SIZE) -
1220 cfg->array / PAGE_SIZE;
1221 pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL);
1225 ret = get_user_pages_fast(cfg->array, num_pages, 1, pages);
1229 if (ret != num_pages) {
1235 virt = vmap(pages, num_pages, VM_MAP, PAGE_KERNEL);
1241 privs[0] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[0],
1243 privs[1] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[1],
1246 if (!privs[0] || !privs[1]) {
1251 g2h_bitmap = kzalloc(sizeof(u64) * params.tlb_sizes[1],
1258 free_gtlb(vcpu_e500);
1260 vcpu_e500->gtlb_priv[0] = privs[0];
1261 vcpu_e500->gtlb_priv[1] = privs[1];
1262 vcpu_e500->g2h_tlb1_map = g2h_bitmap;
1264 vcpu_e500->gtlb_arch = (struct kvm_book3e_206_tlb_entry *)
1265 (virt + (cfg->array & (PAGE_SIZE - 1)));
1267 vcpu_e500->gtlb_params[0].entries = params.tlb_sizes[0];
1268 vcpu_e500->gtlb_params[1].entries = params.tlb_sizes[1];
1270 vcpu_e500->gtlb_offset[0] = 0;
1271 vcpu_e500->gtlb_offset[1] = params.tlb_sizes[0];
1273 vcpu->arch.mmucfg = mfspr(SPRN_MMUCFG) & ~MMUCFG_LPIDSIZE;
1275 vcpu->arch.tlbcfg[0] &= ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1276 if (params.tlb_sizes[0] <= 2048)
1277 vcpu->arch.tlbcfg[0] |= params.tlb_sizes[0];
1278 vcpu->arch.tlbcfg[0] |= params.tlb_ways[0] << TLBnCFG_ASSOC_SHIFT;
1280 vcpu->arch.tlbcfg[1] &= ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1281 vcpu->arch.tlbcfg[1] |= params.tlb_sizes[1];
1282 vcpu->arch.tlbcfg[1] |= params.tlb_ways[1] << TLBnCFG_ASSOC_SHIFT;
1284 vcpu_e500->shared_tlb_pages = pages;
1285 vcpu_e500->num_shared_tlb_pages = num_pages;
1287 vcpu_e500->gtlb_params[0].ways = params.tlb_ways[0];
1288 vcpu_e500->gtlb_params[0].sets = sets;
1290 vcpu_e500->gtlb_params[1].ways = params.tlb_sizes[1];
1291 vcpu_e500->gtlb_params[1].sets = 1;
1293 kvmppc_recalc_tlb1map_range(vcpu_e500);
1301 for (i = 0; i < num_pages; i++)
1309 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
1310 struct kvm_dirty_tlb *dirty)
1312 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
1313 kvmppc_recalc_tlb1map_range(vcpu_e500);
1314 clear_tlb_refs(vcpu_e500);
1318 int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
1320 struct kvm_vcpu *vcpu = &vcpu_e500->vcpu;
1321 int entry_size = sizeof(struct kvm_book3e_206_tlb_entry);
1322 int entries = KVM_E500_TLB0_SIZE + KVM_E500_TLB1_SIZE;
1324 host_tlb_params[0].entries = mfspr(SPRN_TLB0CFG) & TLBnCFG_N_ENTRY;
1325 host_tlb_params[1].entries = mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY;
1328 * This should never happen on real e500 hardware, but is
1329 * architecturally possible -- e.g. in some weird nested
1330 * virtualization case.
1332 if (host_tlb_params[0].entries == 0 ||
1333 host_tlb_params[1].entries == 0) {
1334 pr_err("%s: need to know host tlb size\n", __func__);
1338 host_tlb_params[0].ways = (mfspr(SPRN_TLB0CFG) & TLBnCFG_ASSOC) >>
1339 TLBnCFG_ASSOC_SHIFT;
1340 host_tlb_params[1].ways = host_tlb_params[1].entries;
1342 if (!is_power_of_2(host_tlb_params[0].entries) ||
1343 !is_power_of_2(host_tlb_params[0].ways) ||
1344 host_tlb_params[0].entries < host_tlb_params[0].ways ||
1345 host_tlb_params[0].ways == 0) {
1346 pr_err("%s: bad tlb0 host config: %u entries %u ways\n",
1347 __func__, host_tlb_params[0].entries,
1348 host_tlb_params[0].ways);
1352 host_tlb_params[0].sets =
1353 host_tlb_params[0].entries / host_tlb_params[0].ways;
1354 host_tlb_params[1].sets = 1;
1356 vcpu_e500->gtlb_params[0].entries = KVM_E500_TLB0_SIZE;
1357 vcpu_e500->gtlb_params[1].entries = KVM_E500_TLB1_SIZE;
1359 vcpu_e500->gtlb_params[0].ways = KVM_E500_TLB0_WAY_NUM;
1360 vcpu_e500->gtlb_params[0].sets =
1361 KVM_E500_TLB0_SIZE / KVM_E500_TLB0_WAY_NUM;
1363 vcpu_e500->gtlb_params[1].ways = KVM_E500_TLB1_SIZE;
1364 vcpu_e500->gtlb_params[1].sets = 1;
1366 vcpu_e500->gtlb_arch = kmalloc(entries * entry_size, GFP_KERNEL);
1367 if (!vcpu_e500->gtlb_arch)
1370 vcpu_e500->gtlb_offset[0] = 0;
1371 vcpu_e500->gtlb_offset[1] = KVM_E500_TLB0_SIZE;
1373 vcpu_e500->tlb_refs[0] =
1374 kzalloc(sizeof(struct tlbe_ref) * host_tlb_params[0].entries,
1376 if (!vcpu_e500->tlb_refs[0])
1379 vcpu_e500->tlb_refs[1] =
1380 kzalloc(sizeof(struct tlbe_ref) * host_tlb_params[1].entries,
1382 if (!vcpu_e500->tlb_refs[1])
1385 vcpu_e500->gtlb_priv[0] = kzalloc(sizeof(struct tlbe_ref) *
1386 vcpu_e500->gtlb_params[0].entries,
1388 if (!vcpu_e500->gtlb_priv[0])
1391 vcpu_e500->gtlb_priv[1] = kzalloc(sizeof(struct tlbe_ref) *
1392 vcpu_e500->gtlb_params[1].entries,
1394 if (!vcpu_e500->gtlb_priv[1])
1397 vcpu_e500->g2h_tlb1_map = kzalloc(sizeof(u64) *
1398 vcpu_e500->gtlb_params[1].entries,
1400 if (!vcpu_e500->g2h_tlb1_map)
1403 vcpu_e500->h2g_tlb1_rmap = kzalloc(sizeof(unsigned int) *
1404 host_tlb_params[1].entries,
1406 if (!vcpu_e500->h2g_tlb1_rmap)
1409 /* Init TLB configuration register */
1410 vcpu->arch.tlbcfg[0] = mfspr(SPRN_TLB0CFG) &
1411 ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1412 vcpu->arch.tlbcfg[0] |= vcpu_e500->gtlb_params[0].entries;
1413 vcpu->arch.tlbcfg[0] |=
1414 vcpu_e500->gtlb_params[0].ways << TLBnCFG_ASSOC_SHIFT;
1416 vcpu->arch.tlbcfg[1] = mfspr(SPRN_TLB1CFG) &
1417 ~(TLBnCFG_N_ENTRY | TLBnCFG_ASSOC);
1418 vcpu->arch.tlbcfg[1] |= vcpu_e500->gtlb_params[1].entries;
1419 vcpu->arch.tlbcfg[1] |=
1420 vcpu_e500->gtlb_params[1].ways << TLBnCFG_ASSOC_SHIFT;
1422 kvmppc_recalc_tlb1map_range(vcpu_e500);
1426 free_gtlb(vcpu_e500);
1427 kfree(vcpu_e500->tlb_refs[0]);
1428 kfree(vcpu_e500->tlb_refs[1]);
1432 void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500)
1434 free_gtlb(vcpu_e500);
1435 kfree(vcpu_e500->h2g_tlb1_rmap);
1436 kfree(vcpu_e500->tlb_refs[0]);
1437 kfree(vcpu_e500->tlb_refs[1]);