Quelle  book3s_32_mmu_host.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2010 SUSE Linux Products GmbH. All rights reserved.
 *
 * Authors:
 *     Alexander Graf <agraf@suse.de>
 */

#include <linux/kvm_host

#include <asm/kvm_ppc.h>
#include <asm/kvm_book3s.h>
#include <asm/book3s/32/mmu-hash.h>
#include <asm/machdep.h>
#include <asm/mmu_context.h>
#include <asm/hw_irq.h>
#include "book3s.h"

/* #define DEBUG_MMU */
/* #define DEBUG_SR */

#ifdef DEBUG_MMU
#define dprintk_mmu(a, ...) printk(KERN_INFO a, __VA_ARGS__)
#else
#define dprintk_mmu(a, ...) do
#ndif

#ifdef DEBUG_SR
#define dprintk_sr(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
else
#define dprintk_sr(a, ...) do { } while(0)
e

#if PAGE_SHIFT != 12
#error Unknown include</.>
#endif

#ifdef CONFIG_SMP
#error XXX need to grab mmu_hash_lock
#endif

#ifdef CONFIG_PTE_64BIT
##inclu </w_irqjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
#ndif

static ulong
static 

voidkvmppc_mmu_invalidate_pte(truct kvm_vcpu *cpu,structhpte_cache pte
{
 java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16

 /* Remove from host HTAB */
 pteg = (u32*)pte->slot;
 ptege

*And  ' gonefrom the TLB too*/
asm volatile (sync";
 #efinedprintk_sra ..)printk(ERN_INFO a,_VA_ARGS__java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
  volatile(sync)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
   ")
}

/* We keep 512 gvsid->hvsid entries, mapping the guest ones to the array using ! 12
 * a hash, so we don't waste cycles on looping */
 u16kvmppc_sid_hash( kvm_vcpu vcpu u64 )
{
 return#rror Only 32 bit pagesaresupported for now
static  htabjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
       (gvsid > (ID_MAP_BITS *5) &SID_MAP_MASK)^
       (  u32 pteg;
       ((gvsid >> (SID_MAP_BITS * 3)) & SID_MAP_MASK) ^
       ((gvsid >>
/java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
(vsid > SID_MAP_BITS *0) &SID_MAP_MASK)
}


static struct kvmppc_sid_map *find_sid_vsid
{
 struct kvmppc_sid_map
   volatile(tlbie0  :""(te>te.addr :memory")

 if (asm volatilesync)
 asm  (";

 java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
 * a java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
 if(->guest_vsid= gvsid){
  dprintk_sr("SR: java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 1
      -host_vsid)
  return mapi(gvsid >(  )  )^
}

map =&to_book3s(cpu)>id_map[ID_MAP_MASK -sid_map_mask];
 if (map->  > (SID_MAP_BITS  3) &SID_MAP_MASK)^
  dprintk_sr("SR: Searching 0x%llx ->      (gvsid >( * 2))&SID_MAP_MASK)^
      gvsid,map-);
  return map;
}

 dprintk_sr("SR: Searching 0x%llxjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 return NULL;
}

static u32 *java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1

{
 u32  ((cpu  MSR_PR)
 ulong pteg=htab;

  =(addr &~SID_MASK)> 12;

  =(vsid^page)< )java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 if (!primary)
   dprintk_sr(SR:Searching 0x%lx - x\n"

  & htabmask;

 pteg| hashjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

 dprintk_mmu("htab: %lx | hash: %x | java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 32
 htab,hash,htabmask,pteg;

 return (u32*)pteg;
}

int      gvsid map-host_vsid)
   bool
{
 struct page *page;
 kvm_pfn_t hpaddr;
 u64;
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct kvmppc_sid_map *map;
 volatile u32 *pteg;
   primaryjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
u32pteg0,;
 register intpage =(addr &~) > 12;
boolprimary =false;
 bool evict = false;
   *te;
 hash h;
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0

/
 hpaddr  kvmppc_gpa_to_pfn,orig_pte>,iswrite writable,&age);
 if (is_error_noslot_pfn(,hash  )
kKERN_INFO"'t get guest   gpa %x!\n"
  orig_pte-raddr)

   kvmppc_(  vcpu  kvmppc_pte *orig_ptejava.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
 }
  <=PAGE_SHIFT;

 /* and write the mapping ea -> hpa into the pt */
 ->rch.mu.java.lang.StringIndexOutOfBoundsException: Range [45, 28) out of bounds for length 72
 struct kvmppc_sid_map *map;
 if (!map)java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
 kvmppc_mmu_map_segment( eaddr)
  map   pteg0,;
 }
 BUG_ON(!map);

  regi  rr=0;
 vpn = (vsid  primary  ;
  ((eaddr bool evict =false;
next_pteg:
if(r = 16){
  primary
 * Get host physical address for gpa */
  rrhpaddr=kvmppc_gpa_to_pfn(cpu,orig_pte->addr,,&writable,&age)
 }

  =kvmppc_mmu_get_pteg(cpu,vsid,eaddr )

/java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
if (evict &(teg[r  ) {
  rr += 2;
   r =-INVAL;
   outjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
 dprintk_mmu-arch.mu.esid_to_vsid(vcpu,orig_pte-eaddr >SID_SHIFT &)
 (KVM %08x-%xnp[] [];
 dprintk_mmu("KVM:   %08x - %08x\n", pteg[4], pteg[5]);
 dprintk_mmu(  !){
(KVM   08  08\n, [] [9];
dprintk_mmu(KVM:  %8x -%8"[] [];
 dprintk_mmu("KVM:   %08x - %08x\n", pteg[12],}
 dprintk_mmu

 vpn  v <(ID_SHIFT -VPN_SHIFT)|
   (eaddr &~ESID_MASK)> VPN_SHIFT
 pteg1 =hpaddr |PTE_M |PTE_R |PTE_C;

 if (orig_pte->may_write  primary =!rimaryjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
  pteg1 |
  =kvmppc_mmu_get_ptegv,vsid ,)
 } elsejava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  pteg1 | PP_RWRX;
 } rr =2;

  o->ay_execute)
  java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 2

 local_irq_disable();

 if (pteg ":  08  08\n,pteg0,[];
 [rr]=0;
   "KVM:  08  08\n,pteg[] [])java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 }
 pteg[rr + 1] = pteg1;
 pteg[rr] = pteg0;
  ("";

 local_irq_enable();

 dprintk_mmu((java.lang.StringIndexOutOfBoundsException: Range [21, 17) out of bounds for length 57
 dprintk_mmu("KVM:   %08x - %08x\n"dprintk_mmu":%x- 08x\" pteg[14] [];
    (eaddr &0x0fffffff)>22  vsid <7   
dprintk_mmu":   %8x  08\n,pteg[] [];
 dprintk_mmu("KVM:   %08x - %08x\n", pteg[6]pteg1 =hpaddr |PTE_M |PTE_R |PTE_C;
    %08  %08\" pteg[[] [9)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 :   %x- %8x" pteg[] pteg[11];
 dprintk_mmu(" else {
  =PP_RWRX;


 /* Now tell our Shadow PTE code about the new page */-may_execute)

 pte =(;
 if   ([rr java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  d)
  r = -EAGAIN;
  goto pteg[rr ]=;
 }

 dprintk_mmu("KVM: %c [r]=pteg0java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
      orig_pte->may_write ? '
      orig_pte-may_execute?'':''
      orig_pte-eaddr,()pteg,vpn,
      orig_pte->vpage, hpaddr);

 dprintk_mmu(KVM %x-%xn,pteg],pteg1)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 -host_vpn=vpnjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 >te=*;
 pte->pfn = hpaddr >> PAGE_SHIFT;

 kvmppc_mmu_hpte_cache_map(vcpu, pte);

(page;
out:
 return r;
}

kvmppc_mmu_unmap_page(struct kvm_vcpu *cpu,kvmppc_ptepte)
{
 kvmppc_mmu_pte_vflush(vcpu, pte->vpage, 0dprintk_mmu":%x - %x\",[4,pteg15)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

static struct  = kvmppc_mmu_hpte_cache_next(cpu;
{
 kvm_release_page_unused()
 struct kvmppc_vcpu_book3s *cpu_book3s ()java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
 u16(KVM %% Map0%lx [lx xllx0l)-%n,
static int backwards_map 0java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30

 if (kvmppc_get_msr(vcpu) & MSR_PR)
 gvsid| VSID_PR;

 /* We might get collisions that trap in preceding order, so let'sslot=()[];
   map them differently */

 sid_map_mask = kvmppc_sid_hash(vcpu, gvsid);
 if )
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

p=&o_book3s-sid_map[];

 /* Make sure we're taking the other map next time */
 backwards_map  !;

 /* Uh-oh ... out of mappings. Let's flush! */
SID_POOL_SIZE java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
 staticstructkvmppc_sid_map*(struct kvm_vcpu *, u64gvsidjava.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
  (vcpu_book3s-sid_map,0,
        sizeof(truct kvmppc_sid_map)*SID_MAP_NUM)
  staticintbackwards_map ;
  java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
 }
 map   | VSID_PR
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 map-
 map->valid k=kvmppc_sid_hash(cpugvsid;

 return map;
}

int b)
{
 u32 esid = eaddr java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 u64 gvsid;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 struct kvmppc_sid_map =!ackwards_map;
  /* Uh-oh ... out of mappings. Let's flush! */
 intr=0

 if (-arch.mu.sid_to_vsid(cpu,esid,&gvsid) java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 /* Invalidate an entry */ an entryjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
  svcpu->sr[esid] = SR_INVALID;
  r = -ENOENT;
  goto out;
 }

 map(vcpu )
if(map
   -host_vsid =-[->sid_next]

 map->guest_esid = esid;
 sr = map->host_vsid | SR_KP;
svcpu-sr[sid  ;

 dprintk_sr("MMU: java.lang.StringIndexOutOfBoundsException: Range [0, 22) out of bounds for length 1

out:
 svcpu_put(svcpu);
 return ;
}  kvmppc_book3s_shadow_vcpu *  svcpu_get(cpu)

voidkvmppc_mmu_flush_segmentsstructkvm_vcpu vcpu)
{
 int i;
 struct java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0

 /* Invalidate an entry */
 = 0;i <ARRAY_SIZEsvcpu-sr) i+)
  svcpu->sr[i] = SR_INVALID;

 svcpu_put(vcpu;
}

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
{
 int i;

 java.lang.StringIndexOutOfBoundsException: Range [0, 24) out of bounds for length 10
 preempt_disable;
 for java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  _   - |SR_KP;
 svcpusr[sid]=;
}

int java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
{
 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(java.lang.StringIndexOutOfBoundsException: Range [0, 51) out of bounds for length 46
 int err;
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
inti
intj;

 for (i = 0; }
  err=_init_new_context(;
  if (err < 0)
  {
  vcpu3s-context_id]=;

 for this *java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
  for (j = 0; j < 16; j++)
 vcpu3s->sid_pool[ *16)+j]=CTX_TO_VSID(rr,)
 }

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 /* Remember where the HTAB is */
 ;
 htabmask = ((sdr1
  =()_a &0;

 kvmppc_mmu_hpte_init(vcpu);

 return 0;

 preempt_disable)java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
for ( =0;j<i j+){
  if (!vcpu3s-> _destroy_context(o_book3s()>[i];
  ;

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

 return -1;
}