1d94d71cbSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
201235180SAlexander Graf /*
301235180SAlexander Graf *
401235180SAlexander Graf * Copyright SUSE Linux Products GmbH 2009
501235180SAlexander Graf *
601235180SAlexander Graf * Authors: Alexander Graf <agraf@suse.de>
701235180SAlexander Graf */
801235180SAlexander Graf
901235180SAlexander Graf #include <linux/types.h>
1001235180SAlexander Graf #include <linux/string.h>
1101235180SAlexander Graf #include <linux/kvm.h>
1201235180SAlexander Graf #include <linux/kvm_host.h>
1301235180SAlexander Graf #include <linux/highmem.h>
1401235180SAlexander Graf
1501235180SAlexander Graf #include <asm/kvm_ppc.h>
1601235180SAlexander Graf #include <asm/kvm_book3s.h>
1701235180SAlexander Graf
1801235180SAlexander Graf /* #define DEBUG_MMU */
1901235180SAlexander Graf /* #define DEBUG_MMU_PTE */
2001235180SAlexander Graf /* #define DEBUG_MMU_PTE_IP 0xfff14c40 */
2101235180SAlexander Graf
2201235180SAlexander Graf #ifdef DEBUG_MMU
2301235180SAlexander Graf #define dprintk(X...) printk(KERN_INFO X)
2401235180SAlexander Graf #else
2501235180SAlexander Graf #define dprintk(X...) do { } while(0)
2601235180SAlexander Graf #endif
2701235180SAlexander Graf
28e425a6deSAlexander Graf #ifdef DEBUG_MMU_PTE
2901235180SAlexander Graf #define dprintk_pte(X...) printk(KERN_INFO X)
3001235180SAlexander Graf #else
3101235180SAlexander Graf #define dprintk_pte(X...) do { } while(0)
3201235180SAlexander Graf #endif
3301235180SAlexander Graf
3401235180SAlexander Graf #define PTEG_FLAG_ACCESSED 0x00000100
3501235180SAlexander Graf #define PTEG_FLAG_DIRTY 0x00000080
3607b0907dSAlexander Graf #ifndef SID_SHIFT
3707b0907dSAlexander Graf #define SID_SHIFT 28
3807b0907dSAlexander Graf #endif
3901235180SAlexander Graf
check_debug_ip(struct kvm_vcpu * vcpu)4001235180SAlexander Graf static inline bool check_debug_ip(struct kvm_vcpu *vcpu)
4101235180SAlexander Graf {
4201235180SAlexander Graf #ifdef DEBUG_MMU_PTE_IP
43173c520aSSimon Guo return vcpu->arch.regs.nip == DEBUG_MMU_PTE_IP;
4401235180SAlexander Graf #else
4501235180SAlexander Graf return true;
4601235180SAlexander Graf #endif
4701235180SAlexander Graf }
4801235180SAlexander Graf
sr_vsid(u32 sr_raw)498e865178SAlexander Graf static inline u32 sr_vsid(u32 sr_raw)
508e865178SAlexander Graf {
518e865178SAlexander Graf return sr_raw & 0x0fffffff;
528e865178SAlexander Graf }
538e865178SAlexander Graf
sr_valid(u32 sr_raw)548e865178SAlexander Graf static inline bool sr_valid(u32 sr_raw)
558e865178SAlexander Graf {
568e865178SAlexander Graf return (sr_raw & 0x80000000) ? false : true;
578e865178SAlexander Graf }
588e865178SAlexander Graf
sr_ks(u32 sr_raw)598e865178SAlexander Graf static inline bool sr_ks(u32 sr_raw)
608e865178SAlexander Graf {
618e865178SAlexander Graf return (sr_raw & 0x40000000) ? true: false;
628e865178SAlexander Graf }
638e865178SAlexander Graf
sr_kp(u32 sr_raw)648e865178SAlexander Graf static inline bool sr_kp(u32 sr_raw)
658e865178SAlexander Graf {
668e865178SAlexander Graf return (sr_raw & 0x20000000) ? true: false;
678e865178SAlexander Graf }
688e865178SAlexander Graf
6901235180SAlexander Graf static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr,
7093b159b4SPaul Mackerras struct kvmppc_pte *pte, bool data,
7193b159b4SPaul Mackerras bool iswrite);
72af7b4d10SAlexander Graf static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
734b389ca2SAlexander Graf u64 *vsid);
7401235180SAlexander Graf
find_sr(struct kvm_vcpu * vcpu,gva_t eaddr)75df1bfa25SAlexander Graf static u32 find_sr(struct kvm_vcpu *vcpu, gva_t eaddr)
7601235180SAlexander Graf {
775deb8e7aSAlexander Graf return kvmppc_get_sr(vcpu, (eaddr >> 28) & 0xf);
7801235180SAlexander Graf }
7901235180SAlexander Graf
kvmppc_mmu_book3s_32_ea_to_vp(struct kvm_vcpu * vcpu,gva_t eaddr,bool data)8001235180SAlexander Graf static u64 kvmppc_mmu_book3s_32_ea_to_vp(struct kvm_vcpu *vcpu, gva_t eaddr,
8101235180SAlexander Graf bool data)
8201235180SAlexander Graf {
834b389ca2SAlexander Graf u64 vsid;
8401235180SAlexander Graf struct kvmppc_pte pte;
8501235180SAlexander Graf
8693b159b4SPaul Mackerras if (!kvmppc_mmu_book3s_32_xlate_bat(vcpu, eaddr, &pte, data, false))
8701235180SAlexander Graf return pte.vpage;
8801235180SAlexander Graf
894b389ca2SAlexander Graf kvmppc_mmu_book3s_32_esid_to_vsid(vcpu, eaddr >> SID_SHIFT, &vsid);
904b389ca2SAlexander Graf return (((u64)eaddr >> 12) & 0xffff) | (vsid << 16);
9101235180SAlexander Graf }
9201235180SAlexander Graf
kvmppc_mmu_book3s_32_get_pteg(struct kvm_vcpu * vcpu,u32 sre,gva_t eaddr,bool primary)933ff95502SPaul Mackerras static hva_t kvmppc_mmu_book3s_32_get_pteg(struct kvm_vcpu *vcpu,
948e865178SAlexander Graf u32 sre, gva_t eaddr,
9501235180SAlexander Graf bool primary)
9601235180SAlexander Graf {
973ff95502SPaul Mackerras struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
9801235180SAlexander Graf u32 page, hash, pteg, htabmask;
9901235180SAlexander Graf hva_t r;
10001235180SAlexander Graf
10101235180SAlexander Graf page = (eaddr & 0x0FFFFFFF) >> 12;
10201235180SAlexander Graf htabmask = ((vcpu_book3s->sdr1 & 0x1FF) << 16) | 0xFFC0;
10301235180SAlexander Graf
1048e865178SAlexander Graf hash = ((sr_vsid(sre) ^ page) << 6);
10501235180SAlexander Graf if (!primary)
10601235180SAlexander Graf hash = ~hash;
10701235180SAlexander Graf hash &= htabmask;
10801235180SAlexander Graf
10901235180SAlexander Graf pteg = (vcpu_book3s->sdr1 & 0xffff0000) | hash;
11001235180SAlexander Graf
11101235180SAlexander Graf dprintk("MMU: pc=0x%lx eaddr=0x%lx sdr1=0x%llx pteg=0x%x vsid=0x%x\n",
112cd087eefSAlexander Graf kvmppc_get_pc(vcpu), eaddr, vcpu_book3s->sdr1, pteg,
1138e865178SAlexander Graf sr_vsid(sre));
11401235180SAlexander Graf
1153ff95502SPaul Mackerras r = gfn_to_hva(vcpu->kvm, pteg >> PAGE_SHIFT);
11601235180SAlexander Graf if (kvm_is_error_hva(r))
11701235180SAlexander Graf return r;
11801235180SAlexander Graf return r | (pteg & ~PAGE_MASK);
11901235180SAlexander Graf }
12001235180SAlexander Graf
kvmppc_mmu_book3s_32_get_ptem(u32 sre,gva_t eaddr,bool primary)1218e865178SAlexander Graf static u32 kvmppc_mmu_book3s_32_get_ptem(u32 sre, gva_t eaddr, bool primary)
12201235180SAlexander Graf {
1238e865178SAlexander Graf return ((eaddr & 0x0fffffff) >> 22) | (sr_vsid(sre) << 7) |
12401235180SAlexander Graf (primary ? 0 : 0x40) | 0x80000000;
12501235180SAlexander Graf }
12601235180SAlexander Graf
kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu * vcpu,gva_t eaddr,struct kvmppc_pte * pte,bool data,bool iswrite)12701235180SAlexander Graf static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr,
12893b159b4SPaul Mackerras struct kvmppc_pte *pte, bool data,
12993b159b4SPaul Mackerras bool iswrite)
13001235180SAlexander Graf {
13101235180SAlexander Graf struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
13201235180SAlexander Graf struct kvmppc_bat *bat;
13301235180SAlexander Graf int i;
13401235180SAlexander Graf
13501235180SAlexander Graf for (i = 0; i < 8; i++) {
13601235180SAlexander Graf if (data)
13701235180SAlexander Graf bat = &vcpu_book3s->dbat[i];
13801235180SAlexander Graf else
13901235180SAlexander Graf bat = &vcpu_book3s->ibat[i];
14001235180SAlexander Graf
1415deb8e7aSAlexander Graf if (kvmppc_get_msr(vcpu) & MSR_PR) {
14201235180SAlexander Graf if (!bat->vp)
14301235180SAlexander Graf continue;
14401235180SAlexander Graf } else {
14501235180SAlexander Graf if (!bat->vs)
14601235180SAlexander Graf continue;
14701235180SAlexander Graf }
14801235180SAlexander Graf
14901235180SAlexander Graf if (check_debug_ip(vcpu))
15001235180SAlexander Graf {
15101235180SAlexander Graf dprintk_pte("%cBAT %02d: 0x%lx - 0x%x (0x%x)\n",
15201235180SAlexander Graf data ? 'd' : 'i', i, eaddr, bat->bepi,
15301235180SAlexander Graf bat->bepi_mask);
15401235180SAlexander Graf }
15501235180SAlexander Graf if ((eaddr & bat->bepi_mask) == bat->bepi) {
1564b389ca2SAlexander Graf u64 vsid;
1574b389ca2SAlexander Graf kvmppc_mmu_book3s_32_esid_to_vsid(vcpu,
1584b389ca2SAlexander Graf eaddr >> SID_SHIFT, &vsid);
1594b389ca2SAlexander Graf vsid <<= 16;
1604b389ca2SAlexander Graf pte->vpage = (((u64)eaddr >> 12) & 0xffff) | vsid;
1614b389ca2SAlexander Graf
16201235180SAlexander Graf pte->raddr = bat->brpn | (eaddr & ~bat->bepi_mask);
16301235180SAlexander Graf pte->may_read = bat->pp;
16401235180SAlexander Graf pte->may_write = bat->pp > 1;
16501235180SAlexander Graf pte->may_execute = true;
16601235180SAlexander Graf if (!pte->may_read) {
16701235180SAlexander Graf printk(KERN_INFO "BAT is not readable!\n");
16801235180SAlexander Graf continue;
16901235180SAlexander Graf }
17093b159b4SPaul Mackerras if (iswrite && !pte->may_write) {
17101235180SAlexander Graf dprintk_pte("BAT is read-only!\n");
17201235180SAlexander Graf continue;
17301235180SAlexander Graf }
17401235180SAlexander Graf
17501235180SAlexander Graf return 0;
17601235180SAlexander Graf }
17701235180SAlexander Graf }
17801235180SAlexander Graf
17901235180SAlexander Graf return -ENOENT;
18001235180SAlexander Graf }
18101235180SAlexander Graf
kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu * vcpu,gva_t eaddr,struct kvmppc_pte * pte,bool data,bool iswrite,bool primary)18201235180SAlexander Graf static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
18301235180SAlexander Graf struct kvmppc_pte *pte, bool data,
18493b159b4SPaul Mackerras bool iswrite, bool primary)
18501235180SAlexander Graf {
1868e865178SAlexander Graf u32 sre;
18701235180SAlexander Graf hva_t ptegp;
18801235180SAlexander Graf u32 pteg[16];
189860540bcSAlexander Graf u32 pte0, pte1;
190af7b4d10SAlexander Graf u32 ptem = 0;
19101235180SAlexander Graf int i;
19201235180SAlexander Graf int found = 0;
19301235180SAlexander Graf
194df1bfa25SAlexander Graf sre = find_sr(vcpu, eaddr);
19501235180SAlexander Graf
19601235180SAlexander Graf dprintk_pte("SR 0x%lx: vsid=0x%x, raw=0x%x\n", eaddr >> 28,
1978e865178SAlexander Graf sr_vsid(sre), sre);
19801235180SAlexander Graf
19901235180SAlexander Graf pte->vpage = kvmppc_mmu_book3s_32_ea_to_vp(vcpu, eaddr, data);
20001235180SAlexander Graf
2013ff95502SPaul Mackerras ptegp = kvmppc_mmu_book3s_32_get_pteg(vcpu, sre, eaddr, primary);
20201235180SAlexander Graf if (kvm_is_error_hva(ptegp)) {
20301235180SAlexander Graf printk(KERN_INFO "KVM: Invalid PTEG!\n");
20401235180SAlexander Graf goto no_page_found;
20501235180SAlexander Graf }
20601235180SAlexander Graf
20701235180SAlexander Graf ptem = kvmppc_mmu_book3s_32_get_ptem(sre, eaddr, primary);
20801235180SAlexander Graf
20901235180SAlexander Graf if(copy_from_user(pteg, (void __user *)ptegp, sizeof(pteg))) {
2104da934dcSVipin K Parashar printk_ratelimited(KERN_ERR
2114da934dcSVipin K Parashar "KVM: Can't copy data from 0x%lx!\n", ptegp);
21201235180SAlexander Graf goto no_page_found;
21301235180SAlexander Graf }
21401235180SAlexander Graf
21501235180SAlexander Graf for (i=0; i<16; i+=2) {
216860540bcSAlexander Graf pte0 = be32_to_cpu(pteg[i]);
217860540bcSAlexander Graf pte1 = be32_to_cpu(pteg[i + 1]);
218860540bcSAlexander Graf if (ptem == pte0) {
21901235180SAlexander Graf u8 pp;
22001235180SAlexander Graf
221860540bcSAlexander Graf pte->raddr = (pte1 & ~(0xFFFULL)) | (eaddr & 0xFFF);
222860540bcSAlexander Graf pp = pte1 & 3;
22301235180SAlexander Graf
2245deb8e7aSAlexander Graf if ((sr_kp(sre) && (kvmppc_get_msr(vcpu) & MSR_PR)) ||
2255deb8e7aSAlexander Graf (sr_ks(sre) && !(kvmppc_get_msr(vcpu) & MSR_PR)))
22601235180SAlexander Graf pp |= 4;
22701235180SAlexander Graf
22801235180SAlexander Graf pte->may_write = false;
22901235180SAlexander Graf pte->may_read = false;
23001235180SAlexander Graf pte->may_execute = true;
23101235180SAlexander Graf switch (pp) {
23201235180SAlexander Graf case 0:
23301235180SAlexander Graf case 1:
23401235180SAlexander Graf case 2:
23501235180SAlexander Graf case 6:
23601235180SAlexander Graf pte->may_write = true;
2378fc6ba0aSJoe Perches fallthrough;
23801235180SAlexander Graf case 3:
23901235180SAlexander Graf case 5:
24001235180SAlexander Graf case 7:
24101235180SAlexander Graf pte->may_read = true;
24201235180SAlexander Graf break;
24301235180SAlexander Graf }
24401235180SAlexander Graf
24501235180SAlexander Graf dprintk_pte("MMU: Found PTE -> %x %x - %x\n",
246860540bcSAlexander Graf pte0, pte1, pp);
24701235180SAlexander Graf found = 1;
24801235180SAlexander Graf break;
24901235180SAlexander Graf }
25001235180SAlexander Graf }
25101235180SAlexander Graf
25201235180SAlexander Graf /* Update PTE C and A bits, so the guest's swapper knows we used the
25301235180SAlexander Graf page */
25401235180SAlexander Graf if (found) {
255860540bcSAlexander Graf u32 pte_r = pte1;
256740f834eSAlexander Graf char __user *addr = (char __user *) (ptegp + (i+1) * sizeof(u32));
25701235180SAlexander Graf
2589308ab8eSPaul Mackerras /*
2599308ab8eSPaul Mackerras * Use single-byte writes to update the HPTE, to
2609308ab8eSPaul Mackerras * conform to what real hardware does.
2619308ab8eSPaul Mackerras */
2629308ab8eSPaul Mackerras if (pte->may_read && !(pte_r & PTEG_FLAG_ACCESSED)) {
2639308ab8eSPaul Mackerras pte_r |= PTEG_FLAG_ACCESSED;
2649308ab8eSPaul Mackerras put_user(pte_r >> 8, addr + 2);
2659308ab8eSPaul Mackerras }
26693b159b4SPaul Mackerras if (iswrite && pte->may_write && !(pte_r & PTEG_FLAG_DIRTY)) {
2679308ab8eSPaul Mackerras pte_r |= PTEG_FLAG_DIRTY;
2689308ab8eSPaul Mackerras put_user(pte_r, addr + 3);
2699308ab8eSPaul Mackerras }
27093b159b4SPaul Mackerras if (!pte->may_read || (iswrite && !pte->may_write))
27193b159b4SPaul Mackerras return -EPERM;
27201235180SAlexander Graf return 0;
27301235180SAlexander Graf }
27401235180SAlexander Graf
27501235180SAlexander Graf no_page_found:
27601235180SAlexander Graf
27701235180SAlexander Graf if (check_debug_ip(vcpu)) {
27801235180SAlexander Graf dprintk_pte("KVM MMU: No PTE found (sdr1=0x%llx ptegp=0x%lx)\n",
27901235180SAlexander Graf to_book3s(vcpu)->sdr1, ptegp);
28001235180SAlexander Graf for (i=0; i<16; i+=2) {
28153021042SAlexander Graf dprintk_pte(" %02d: 0x%x - 0x%x (0x%x)\n",
282860540bcSAlexander Graf i, be32_to_cpu(pteg[i]),
283860540bcSAlexander Graf be32_to_cpu(pteg[i+1]), ptem);
28401235180SAlexander Graf }
28501235180SAlexander Graf }
28601235180SAlexander Graf
28701235180SAlexander Graf return -ENOENT;
28801235180SAlexander Graf }
28901235180SAlexander Graf
kvmppc_mmu_book3s_32_xlate(struct kvm_vcpu * vcpu,gva_t eaddr,struct kvmppc_pte * pte,bool data,bool iswrite)29001235180SAlexander Graf static int kvmppc_mmu_book3s_32_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
29193b159b4SPaul Mackerras struct kvmppc_pte *pte, bool data,
29293b159b4SPaul Mackerras bool iswrite)
29301235180SAlexander Graf {
29401235180SAlexander Graf int r;
295e8508940SAlexander Graf ulong mp_ea = vcpu->arch.magic_page_ea;
29601235180SAlexander Graf
29701235180SAlexander Graf pte->eaddr = eaddr;
298c9029c34SPaul Mackerras pte->page_size = MMU_PAGE_4K;
299e8508940SAlexander Graf
300e8508940SAlexander Graf /* Magic page override */
301e8508940SAlexander Graf if (unlikely(mp_ea) &&
302e8508940SAlexander Graf unlikely((eaddr & ~0xfffULL) == (mp_ea & ~0xfffULL)) &&
3035deb8e7aSAlexander Graf !(kvmppc_get_msr(vcpu) & MSR_PR)) {
304e8508940SAlexander Graf pte->vpage = kvmppc_mmu_book3s_32_ea_to_vp(vcpu, eaddr, data);
305e8508940SAlexander Graf pte->raddr = vcpu->arch.magic_page_pa | (pte->raddr & 0xfff);
306e8508940SAlexander Graf pte->raddr &= KVM_PAM;
307e8508940SAlexander Graf pte->may_execute = true;
308e8508940SAlexander Graf pte->may_read = true;
309e8508940SAlexander Graf pte->may_write = true;
310e8508940SAlexander Graf
311e8508940SAlexander Graf return 0;
312e8508940SAlexander Graf }
313e8508940SAlexander Graf
31493b159b4SPaul Mackerras r = kvmppc_mmu_book3s_32_xlate_bat(vcpu, eaddr, pte, data, iswrite);
31501235180SAlexander Graf if (r < 0)
31693b159b4SPaul Mackerras r = kvmppc_mmu_book3s_32_xlate_pte(vcpu, eaddr, pte,
31793b159b4SPaul Mackerras data, iswrite, true);
3182e27ecc9SAlexander Graf if (r == -ENOENT)
31993b159b4SPaul Mackerras r = kvmppc_mmu_book3s_32_xlate_pte(vcpu, eaddr, pte,
32093b159b4SPaul Mackerras data, iswrite, false);
32101235180SAlexander Graf
32201235180SAlexander Graf return r;
32301235180SAlexander Graf }
32401235180SAlexander Graf
32501235180SAlexander Graf
kvmppc_mmu_book3s_32_mfsrin(struct kvm_vcpu * vcpu,u32 srnum)32601235180SAlexander Graf static u32 kvmppc_mmu_book3s_32_mfsrin(struct kvm_vcpu *vcpu, u32 srnum)
32701235180SAlexander Graf {
3285deb8e7aSAlexander Graf return kvmppc_get_sr(vcpu, srnum);
32901235180SAlexander Graf }
33001235180SAlexander Graf
kvmppc_mmu_book3s_32_mtsrin(struct kvm_vcpu * vcpu,u32 srnum,ulong value)33101235180SAlexander Graf static void kvmppc_mmu_book3s_32_mtsrin(struct kvm_vcpu *vcpu, u32 srnum,
33201235180SAlexander Graf ulong value)
33301235180SAlexander Graf {
3345deb8e7aSAlexander Graf kvmppc_set_sr(vcpu, srnum, value);
33501235180SAlexander Graf kvmppc_mmu_map_segment(vcpu, srnum << SID_SHIFT);
33601235180SAlexander Graf }
33701235180SAlexander Graf
kvmppc_mmu_book3s_32_tlbie(struct kvm_vcpu * vcpu,ulong ea,bool large)33801235180SAlexander Graf static void kvmppc_mmu_book3s_32_tlbie(struct kvm_vcpu *vcpu, ulong ea, bool large)
33901235180SAlexander Graf {
340*46808a4cSMarc Zyngier unsigned long i;
3419308ab8eSPaul Mackerras struct kvm_vcpu *v;
3429308ab8eSPaul Mackerras
3439308ab8eSPaul Mackerras /* flush this VA on all cpus */
3449308ab8eSPaul Mackerras kvm_for_each_vcpu(i, v, vcpu->kvm)
3459308ab8eSPaul Mackerras kvmppc_mmu_pte_flush(v, ea, 0x0FFFF000);
34601235180SAlexander Graf }
34701235180SAlexander Graf
kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu * vcpu,ulong esid,u64 * vsid)348af7b4d10SAlexander Graf static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
34901235180SAlexander Graf u64 *vsid)
35001235180SAlexander Graf {
351f7bc74e1SAlexander Graf ulong ea = esid << SID_SHIFT;
3528e865178SAlexander Graf u32 sr;
353f7bc74e1SAlexander Graf u64 gvsid = esid;
3545deb8e7aSAlexander Graf u64 msr = kvmppc_get_msr(vcpu);
355f7bc74e1SAlexander Graf
3565deb8e7aSAlexander Graf if (msr & (MSR_DR|MSR_IR)) {
357df1bfa25SAlexander Graf sr = find_sr(vcpu, ea);
3588e865178SAlexander Graf if (sr_valid(sr))
3598e865178SAlexander Graf gvsid = sr_vsid(sr);
360f7bc74e1SAlexander Graf }
361f7bc74e1SAlexander Graf
36201235180SAlexander Graf /* In case we only have one of MSR_IR or MSR_DR set, let's put
36301235180SAlexander Graf that in the real-mode context (and hope RM doesn't access
36401235180SAlexander Graf high memory) */
3655deb8e7aSAlexander Graf switch (msr & (MSR_DR|MSR_IR)) {
36601235180SAlexander Graf case 0:
367f7bc74e1SAlexander Graf *vsid = VSID_REAL | esid;
36801235180SAlexander Graf break;
36901235180SAlexander Graf case MSR_IR:
370f7bc74e1SAlexander Graf *vsid = VSID_REAL_IR | gvsid;
37101235180SAlexander Graf break;
37201235180SAlexander Graf case MSR_DR:
373f7bc74e1SAlexander Graf *vsid = VSID_REAL_DR | gvsid;
37401235180SAlexander Graf break;
37501235180SAlexander Graf case MSR_DR|MSR_IR:
3768e865178SAlexander Graf if (sr_valid(sr))
3778e865178SAlexander Graf *vsid = sr_vsid(sr);
3784d29bdbfSAlexander Graf else
3794d29bdbfSAlexander Graf *vsid = VSID_BAT | gvsid;
38001235180SAlexander Graf break;
38101235180SAlexander Graf default:
38201235180SAlexander Graf BUG();
38301235180SAlexander Graf }
38401235180SAlexander Graf
3855deb8e7aSAlexander Graf if (msr & MSR_PR)
3864b389ca2SAlexander Graf *vsid |= VSID_PR;
3874b389ca2SAlexander Graf
38801235180SAlexander Graf return 0;
38901235180SAlexander Graf }
39001235180SAlexander Graf
kvmppc_mmu_book3s_32_is_dcbz32(struct kvm_vcpu * vcpu)39101235180SAlexander Graf static bool kvmppc_mmu_book3s_32_is_dcbz32(struct kvm_vcpu *vcpu)
39201235180SAlexander Graf {
39301235180SAlexander Graf return true;
39401235180SAlexander Graf }
39501235180SAlexander Graf
39601235180SAlexander Graf
kvmppc_mmu_book3s_32_init(struct kvm_vcpu * vcpu)39701235180SAlexander Graf void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu)
39801235180SAlexander Graf {
39901235180SAlexander Graf struct kvmppc_mmu *mmu = &vcpu->arch.mmu;
40001235180SAlexander Graf
40101235180SAlexander Graf mmu->mtsrin = kvmppc_mmu_book3s_32_mtsrin;
40201235180SAlexander Graf mmu->mfsrin = kvmppc_mmu_book3s_32_mfsrin;
40301235180SAlexander Graf mmu->xlate = kvmppc_mmu_book3s_32_xlate;
40401235180SAlexander Graf mmu->tlbie = kvmppc_mmu_book3s_32_tlbie;
40501235180SAlexander Graf mmu->esid_to_vsid = kvmppc_mmu_book3s_32_esid_to_vsid;
40601235180SAlexander Graf mmu->ea_to_vp = kvmppc_mmu_book3s_32_ea_to_vp;
40701235180SAlexander Graf mmu->is_dcbz32 = kvmppc_mmu_book3s_32_is_dcbz32;
40801235180SAlexander Graf
40901235180SAlexander Graf mmu->slbmte = NULL;
41001235180SAlexander Graf mmu->slbmfee = NULL;
41101235180SAlexander Graf mmu->slbmfev = NULL;
41241a8645aSPaul Mackerras mmu->slbfee = NULL;
41301235180SAlexander Graf mmu->slbie = NULL;
41401235180SAlexander Graf mmu->slbia = NULL;
41501235180SAlexander Graf }
416