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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 13:43:01 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 13:43:01 -0400
commit5e83f6fbdb020b70c0e413312801424d13c58d68 (patch)
treeca270178fa891813dbc47751c331fed975d3766c /arch/powerpc/kvm
parentfe445c6e2cb62a566e1a89f8798de11459975710 (diff)
parent3444d7da1839b851eefedd372978d8a982316c36 (diff)
Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (198 commits) KVM: VMX: Fix host GDT.LIMIT corruption KVM: MMU: using __xchg_spte more smarter KVM: MMU: cleanup spte set and accssed/dirty tracking KVM: MMU: don't atomicly set spte if it's not present KVM: MMU: fix page dirty tracking lost while sync page KVM: MMU: fix broken page accessed tracking with ept enabled KVM: MMU: add missing reserved bits check in speculative path KVM: MMU: fix mmu notifier invalidate handler for huge spte KVM: x86 emulator: fix xchg instruction emulation KVM: x86: Call mask notifiers from pic KVM: x86: never re-execute instruction with enabled tdp KVM: Document KVM_GET_SUPPORTED_CPUID2 ioctl KVM: x86: emulator: inc/dec can have lock prefix KVM: MMU: Eliminate redundant temporaries in FNAME(fetch) KVM: MMU: Validate all gptes during fetch, not just those used for new pages KVM: MMU: Simplify spte fetch() function KVM: MMU: Add gpte_valid() helper KVM: MMU: Add validate_direct_spte() helper KVM: MMU: Add drop_large_spte() helper KVM: MMU: Use __set_spte to link shadow pages ...
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/44x_tlb.c3
-rw-r--r--arch/powerpc/kvm/Makefile2
-rw-r--r--arch/powerpc/kvm/book3s.c79
-rw-r--r--arch/powerpc/kvm/book3s_32_mmu.c8
-rw-r--r--arch/powerpc/kvm/book3s_32_mmu_host.c134
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_host.c129
-rw-r--r--arch/powerpc/kvm/book3s_mmu_hpte.c277
-rw-r--r--arch/powerpc/kvm/book3s_paired_singles.c94
-rw-r--r--arch/powerpc/kvm/booke.c12
-rw-r--r--arch/powerpc/kvm/fpu.S18
-rw-r--r--arch/powerpc/kvm/powerpc.c14
11 files changed, 404 insertions, 366 deletions
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 812312542e50..9b9b5cdea840 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -316,7 +316,8 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
316 gfn = gpaddr >> PAGE_SHIFT; 316 gfn = gpaddr >> PAGE_SHIFT;
317 new_page = gfn_to_page(vcpu->kvm, gfn); 317 new_page = gfn_to_page(vcpu->kvm, gfn);
318 if (is_error_page(new_page)) { 318 if (is_error_page(new_page)) {
319 printk(KERN_ERR "Couldn't get guest page for gfn %lx!\n", gfn); 319 printk(KERN_ERR "Couldn't get guest page for gfn %llx!\n",
320 (unsigned long long)gfn);
320 kvm_release_page_clean(new_page); 321 kvm_release_page_clean(new_page);
321 return; 322 return;
322 } 323 }
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index ff436066bf77..d45c818a384c 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -45,6 +45,7 @@ kvm-book3s_64-objs := \
45 book3s.o \ 45 book3s.o \
46 book3s_emulate.o \ 46 book3s_emulate.o \
47 book3s_interrupts.o \ 47 book3s_interrupts.o \
48 book3s_mmu_hpte.o \
48 book3s_64_mmu_host.o \ 49 book3s_64_mmu_host.o \
49 book3s_64_mmu.o \ 50 book3s_64_mmu.o \
50 book3s_32_mmu.o 51 book3s_32_mmu.o
@@ -57,6 +58,7 @@ kvm-book3s_32-objs := \
57 book3s.o \ 58 book3s.o \
58 book3s_emulate.o \ 59 book3s_emulate.o \
59 book3s_interrupts.o \ 60 book3s_interrupts.o \
61 book3s_mmu_hpte.o \
60 book3s_32_mmu_host.o \ 62 book3s_32_mmu_host.o \
61 book3s_32_mmu.o 63 book3s_32_mmu.o
62kvm-objs-$(CONFIG_KVM_BOOK3S_32) := $(kvm-book3s_32-objs) 64kvm-objs-$(CONFIG_KVM_BOOK3S_32) := $(kvm-book3s_32-objs)
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index b998abf1a63d..a3cef30d1d42 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -1047,8 +1047,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
1047{ 1047{
1048 int i; 1048 int i;
1049 1049
1050 vcpu_load(vcpu);
1051
1052 regs->pc = kvmppc_get_pc(vcpu); 1050 regs->pc = kvmppc_get_pc(vcpu);
1053 regs->cr = kvmppc_get_cr(vcpu); 1051 regs->cr = kvmppc_get_cr(vcpu);
1054 regs->ctr = kvmppc_get_ctr(vcpu); 1052 regs->ctr = kvmppc_get_ctr(vcpu);
@@ -1069,8 +1067,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
1069 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) 1067 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
1070 regs->gpr[i] = kvmppc_get_gpr(vcpu, i); 1068 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
1071 1069
1072 vcpu_put(vcpu);
1073
1074 return 0; 1070 return 0;
1075} 1071}
1076 1072
@@ -1078,8 +1074,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
1078{ 1074{
1079 int i; 1075 int i;
1080 1076
1081 vcpu_load(vcpu);
1082
1083 kvmppc_set_pc(vcpu, regs->pc); 1077 kvmppc_set_pc(vcpu, regs->pc);
1084 kvmppc_set_cr(vcpu, regs->cr); 1078 kvmppc_set_cr(vcpu, regs->cr);
1085 kvmppc_set_ctr(vcpu, regs->ctr); 1079 kvmppc_set_ctr(vcpu, regs->ctr);
@@ -1099,8 +1093,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
1099 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) 1093 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
1100 kvmppc_set_gpr(vcpu, i, regs->gpr[i]); 1094 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
1101 1095
1102 vcpu_put(vcpu);
1103
1104 return 0; 1096 return 0;
1105} 1097}
1106 1098
@@ -1110,8 +1102,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
1110 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); 1102 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
1111 int i; 1103 int i;
1112 1104
1113 vcpu_load(vcpu);
1114
1115 sregs->pvr = vcpu->arch.pvr; 1105 sregs->pvr = vcpu->arch.pvr;
1116 1106
1117 sregs->u.s.sdr1 = to_book3s(vcpu)->sdr1; 1107 sregs->u.s.sdr1 = to_book3s(vcpu)->sdr1;
@@ -1131,8 +1121,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
1131 } 1121 }
1132 } 1122 }
1133 1123
1134 vcpu_put(vcpu);
1135
1136 return 0; 1124 return 0;
1137} 1125}
1138 1126
@@ -1142,8 +1130,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
1142 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); 1130 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
1143 int i; 1131 int i;
1144 1132
1145 vcpu_load(vcpu);
1146
1147 kvmppc_set_pvr(vcpu, sregs->pvr); 1133 kvmppc_set_pvr(vcpu, sregs->pvr);
1148 1134
1149 vcpu3s->sdr1 = sregs->u.s.sdr1; 1135 vcpu3s->sdr1 = sregs->u.s.sdr1;
@@ -1171,8 +1157,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
1171 /* Flush the MMU after messing with the segments */ 1157 /* Flush the MMU after messing with the segments */
1172 kvmppc_mmu_pte_flush(vcpu, 0, 0); 1158 kvmppc_mmu_pte_flush(vcpu, 0, 0);
1173 1159
1174 vcpu_put(vcpu);
1175
1176 return 0; 1160 return 0;
1177} 1161}
1178 1162
@@ -1309,12 +1293,17 @@ extern int __kvmppc_vcpu_entry(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
1309int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) 1293int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
1310{ 1294{
1311 int ret; 1295 int ret;
1312 struct thread_struct ext_bkp; 1296 double fpr[32][TS_FPRWIDTH];
1297 unsigned int fpscr;
1298 int fpexc_mode;
1313#ifdef CONFIG_ALTIVEC 1299#ifdef CONFIG_ALTIVEC
1314 bool save_vec = current->thread.used_vr; 1300 vector128 vr[32];
1301 vector128 vscr;
1302 unsigned long uninitialized_var(vrsave);
1303 int used_vr;
1315#endif 1304#endif
1316#ifdef CONFIG_VSX 1305#ifdef CONFIG_VSX
1317 bool save_vsx = current->thread.used_vsr; 1306 int used_vsr;
1318#endif 1307#endif
1319 ulong ext_msr; 1308 ulong ext_msr;
1320 1309
@@ -1327,27 +1316,27 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
1327 /* Save FPU state in stack */ 1316 /* Save FPU state in stack */
1328 if (current->thread.regs->msr & MSR_FP) 1317 if (current->thread.regs->msr & MSR_FP)
1329 giveup_fpu(current); 1318 giveup_fpu(current);
1330 memcpy(ext_bkp.fpr, current->thread.fpr, sizeof(current->thread.fpr)); 1319 memcpy(fpr, current->thread.fpr, sizeof(current->thread.fpr));
1331 ext_bkp.fpscr = current->thread.fpscr; 1320 fpscr = current->thread.fpscr.val;
1332 ext_bkp.fpexc_mode = current->thread.fpexc_mode; 1321 fpexc_mode = current->thread.fpexc_mode;
1333 1322
1334#ifdef CONFIG_ALTIVEC 1323#ifdef CONFIG_ALTIVEC
1335 /* Save Altivec state in stack */ 1324 /* Save Altivec state in stack */
1336 if (save_vec) { 1325 used_vr = current->thread.used_vr;
1326 if (used_vr) {
1337 if (current->thread.regs->msr & MSR_VEC) 1327 if (current->thread.regs->msr & MSR_VEC)
1338 giveup_altivec(current); 1328 giveup_altivec(current);
1339 memcpy(ext_bkp.vr, current->thread.vr, sizeof(ext_bkp.vr)); 1329 memcpy(vr, current->thread.vr, sizeof(current->thread.vr));
1340 ext_bkp.vscr = current->thread.vscr; 1330 vscr = current->thread.vscr;
1341 ext_bkp.vrsave = current->thread.vrsave; 1331 vrsave = current->thread.vrsave;
1342 } 1332 }
1343 ext_bkp.used_vr = current->thread.used_vr;
1344#endif 1333#endif
1345 1334
1346#ifdef CONFIG_VSX 1335#ifdef CONFIG_VSX
1347 /* Save VSX state in stack */ 1336 /* Save VSX state in stack */
1348 if (save_vsx && (current->thread.regs->msr & MSR_VSX)) 1337 used_vsr = current->thread.used_vsr;
1338 if (used_vsr && (current->thread.regs->msr & MSR_VSX))
1349 __giveup_vsx(current); 1339 __giveup_vsx(current);
1350 ext_bkp.used_vsr = current->thread.used_vsr;
1351#endif 1340#endif
1352 1341
1353 /* Remember the MSR with disabled extensions */ 1342 /* Remember the MSR with disabled extensions */
@@ -1372,22 +1361,22 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
1372 kvmppc_giveup_ext(vcpu, MSR_VSX); 1361 kvmppc_giveup_ext(vcpu, MSR_VSX);
1373 1362
1374 /* Restore FPU state from stack */ 1363 /* Restore FPU state from stack */
1375 memcpy(current->thread.fpr, ext_bkp.fpr, sizeof(ext_bkp.fpr)); 1364 memcpy(current->thread.fpr, fpr, sizeof(current->thread.fpr));
1376 current->thread.fpscr = ext_bkp.fpscr; 1365 current->thread.fpscr.val = fpscr;
1377 current->thread.fpexc_mode = ext_bkp.fpexc_mode; 1366 current->thread.fpexc_mode = fpexc_mode;
1378 1367
1379#ifdef CONFIG_ALTIVEC 1368#ifdef CONFIG_ALTIVEC
1380 /* Restore Altivec state from stack */ 1369 /* Restore Altivec state from stack */
1381 if (save_vec && current->thread.used_vr) { 1370 if (used_vr && current->thread.used_vr) {
1382 memcpy(current->thread.vr, ext_bkp.vr, sizeof(ext_bkp.vr)); 1371 memcpy(current->thread.vr, vr, sizeof(current->thread.vr));
1383 current->thread.vscr = ext_bkp.vscr; 1372 current->thread.vscr = vscr;
1384 current->thread.vrsave= ext_bkp.vrsave; 1373 current->thread.vrsave = vrsave;
1385 } 1374 }
1386 current->thread.used_vr = ext_bkp.used_vr; 1375 current->thread.used_vr = used_vr;
1387#endif 1376#endif
1388 1377
1389#ifdef CONFIG_VSX 1378#ifdef CONFIG_VSX
1390 current->thread.used_vsr = ext_bkp.used_vsr; 1379 current->thread.used_vsr = used_vsr;
1391#endif 1380#endif
1392 1381
1393 return ret; 1382 return ret;
@@ -1395,12 +1384,22 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
1395 1384
1396static int kvmppc_book3s_init(void) 1385static int kvmppc_book3s_init(void)
1397{ 1386{
1398 return kvm_init(NULL, sizeof(struct kvmppc_vcpu_book3s), 0, 1387 int r;
1399 THIS_MODULE); 1388
1389 r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_book3s), 0,
1390 THIS_MODULE);
1391
1392 if (r)
1393 return r;
1394
1395 r = kvmppc_mmu_hpte_sysinit();
1396
1397 return r;
1400} 1398}
1401 1399
1402static void kvmppc_book3s_exit(void) 1400static void kvmppc_book3s_exit(void)
1403{ 1401{
1402 kvmppc_mmu_hpte_sysexit();
1404 kvm_exit(); 1403 kvm_exit();
1405} 1404}
1406 1405
diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index 0b10503c8a4a..3292d76101d2 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -354,10 +354,10 @@ static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
354 *vsid = VSID_REAL_DR | gvsid; 354 *vsid = VSID_REAL_DR | gvsid;
355 break; 355 break;
356 case MSR_DR|MSR_IR: 356 case MSR_DR|MSR_IR:
357 if (!sr->valid) 357 if (sr->valid)
358 return -1; 358 *vsid = sr->vsid;
359 359 else
360 *vsid = sr->vsid; 360 *vsid = VSID_BAT | gvsid;
361 break; 361 break;
362 default: 362 default:
363 BUG(); 363 BUG();
diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c
index 0bb66005338f..0b51ef872c1e 100644
--- a/arch/powerpc/kvm/book3s_32_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_32_mmu_host.c
@@ -19,6 +19,7 @@
19 */ 19 */
20 20
21#include <linux/kvm_host.h> 21#include <linux/kvm_host.h>
22#include <linux/hash.h>
22 23
23#include <asm/kvm_ppc.h> 24#include <asm/kvm_ppc.h>
24#include <asm/kvm_book3s.h> 25#include <asm/kvm_book3s.h>
@@ -57,139 +58,26 @@
57static ulong htab; 58static ulong htab;
58static u32 htabmask; 59static u32 htabmask;
59 60
60static void invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte) 61void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
61{ 62{
62 volatile u32 *pteg; 63 volatile u32 *pteg;
63 64
64 dprintk_mmu("KVM: Flushing SPTE: 0x%llx (0x%llx) -> 0x%llx\n", 65 /* Remove from host HTAB */
65 pte->pte.eaddr, pte->pte.vpage, pte->host_va);
66
67 pteg = (u32*)pte->slot; 66 pteg = (u32*)pte->slot;
68
69 pteg[0] = 0; 67 pteg[0] = 0;
68
69 /* And make sure it's gone from the TLB too */
70 asm volatile ("sync"); 70 asm volatile ("sync");
71 asm volatile ("tlbie %0" : : "r" (pte->pte.eaddr) : "memory"); 71 asm volatile ("tlbie %0" : : "r" (pte->pte.eaddr) : "memory");
72 asm volatile ("sync"); 72 asm volatile ("sync");
73 asm volatile ("tlbsync"); 73 asm volatile ("tlbsync");
74
75 pte->host_va = 0;
76
77 if (pte->pte.may_write)
78 kvm_release_pfn_dirty(pte->pfn);
79 else
80 kvm_release_pfn_clean(pte->pfn);
81}
82
83void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong guest_ea, ulong ea_mask)
84{
85 int i;
86
87 dprintk_mmu("KVM: Flushing %d Shadow PTEs: 0x%x & 0x%x\n",
88 vcpu->arch.hpte_cache_offset, guest_ea, ea_mask);
89 BUG_ON(vcpu->arch.hpte_cache_offset > HPTEG_CACHE_NUM);
90
91 guest_ea &= ea_mask;
92 for (i = 0; i < vcpu->arch.hpte_cache_offset; i++) {
93 struct hpte_cache *pte;
94
95 pte = &vcpu->arch.hpte_cache[i];
96 if (!pte->host_va)
97 continue;
98
99 if ((pte->pte.eaddr & ea_mask) == guest_ea) {
100 invalidate_pte(vcpu, pte);
101 }
102 }
103
104 /* Doing a complete flush -> start from scratch */
105 if (!ea_mask)
106 vcpu->arch.hpte_cache_offset = 0;
107}
108
109void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 guest_vp, u64 vp_mask)
110{
111 int i;
112
113 dprintk_mmu("KVM: Flushing %d Shadow vPTEs: 0x%llx & 0x%llx\n",
114 vcpu->arch.hpte_cache_offset, guest_vp, vp_mask);
115 BUG_ON(vcpu->arch.hpte_cache_offset > HPTEG_CACHE_NUM);
116
117 guest_vp &= vp_mask;
118 for (i = 0; i < vcpu->arch.hpte_cache_offset; i++) {
119 struct hpte_cache *pte;
120
121 pte = &vcpu->arch.hpte_cache[i];
122 if (!pte->host_va)
123 continue;
124
125 if ((pte->pte.vpage & vp_mask) == guest_vp) {
126 invalidate_pte(vcpu, pte);
127 }
128 }
129}
130
131void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end)
132{
133 int i;
134
135 dprintk_mmu("KVM: Flushing %d Shadow pPTEs: 0x%llx & 0x%llx\n",
136 vcpu->arch.hpte_cache_offset, pa_start, pa_end);
137 BUG_ON(vcpu->arch.hpte_cache_offset > HPTEG_CACHE_NUM);
138
139 for (i = 0; i < vcpu->arch.hpte_cache_offset; i++) {
140 struct hpte_cache *pte;
141
142 pte = &vcpu->arch.hpte_cache[i];
143 if (!pte->host_va)
144 continue;
145
146 if ((pte->pte.raddr >= pa_start) &&
147 (pte->pte.raddr < pa_end)) {
148 invalidate_pte(vcpu, pte);
149 }
150 }
151}
152
153struct kvmppc_pte *kvmppc_mmu_find_pte(struct kvm_vcpu *vcpu, u64 ea, bool data)
154{
155 int i;
156 u64 guest_vp;
157
158 guest_vp = vcpu->arch.mmu.ea_to_vp(vcpu, ea, false);
159 for (i=0; i<vcpu->arch.hpte_cache_offset; i++) {
160 struct hpte_cache *pte;
161
162 pte = &vcpu->arch.hpte_cache[i];
163 if (!pte->host_va)
164 continue;
165
166 if (pte->pte.vpage == guest_vp)
167 return &pte->pte;
168 }
169
170 return NULL;
171}
172
173static int kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu)
174{
175 if (vcpu->arch.hpte_cache_offset == HPTEG_CACHE_NUM)
176 kvmppc_mmu_pte_flush(vcpu, 0, 0);
177
178 return vcpu->arch.hpte_cache_offset++;
179} 74}
180 75
181/* We keep 512 gvsid->hvsid entries, mapping the guest ones to the array using 76/* We keep 512 gvsid->hvsid entries, mapping the guest ones to the array using
182 * a hash, so we don't waste cycles on looping */ 77 * a hash, so we don't waste cycles on looping */
183static u16 kvmppc_sid_hash(struct kvm_vcpu *vcpu, u64 gvsid) 78static u16 kvmppc_sid_hash(struct kvm_vcpu *vcpu, u64 gvsid)
184{ 79{
185 return (u16)(((gvsid >> (SID_MAP_BITS * 7)) & SID_MAP_MASK) ^ 80 return hash_64(gvsid, SID_MAP_BITS);
186 ((gvsid >> (SID_MAP_BITS * 6)) & SID_MAP_MASK) ^
187 ((gvsid >> (SID_MAP_BITS * 5)) & SID_MAP_MASK) ^
188 ((gvsid >> (SID_MAP_BITS * 4)) & SID_MAP_MASK) ^
189 ((gvsid >> (SID_MAP_BITS * 3)) & SID_MAP_MASK) ^
190 ((gvsid >> (SID_MAP_BITS * 2)) & SID_MAP_MASK) ^
191 ((gvsid >> (SID_MAP_BITS * 1)) & SID_MAP_MASK) ^
192 ((gvsid >> (SID_MAP_BITS * 0)) & SID_MAP_MASK));
193} 81}
194 82
195 83
@@ -256,7 +144,6 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
256 register int rr = 0; 144 register int rr = 0;
257 bool primary = false; 145 bool primary = false;
258 bool evict = false; 146 bool evict = false;
259 int hpte_id;
260 struct hpte_cache *pte; 147 struct hpte_cache *pte;
261 148
262 /* Get host physical address for gpa */ 149 /* Get host physical address for gpa */
@@ -341,8 +228,7 @@ next_pteg:
341 228
342 /* Now tell our Shadow PTE code about the new page */ 229 /* Now tell our Shadow PTE code about the new page */
343 230
344 hpte_id = kvmppc_mmu_hpte_cache_next(vcpu); 231 pte = kvmppc_mmu_hpte_cache_next(vcpu);
345 pte = &vcpu->arch.hpte_cache[hpte_id];
346 232
347 dprintk_mmu("KVM: %c%c Map 0x%llx: [%lx] 0x%llx (0x%llx) -> %lx\n", 233 dprintk_mmu("KVM: %c%c Map 0x%llx: [%lx] 0x%llx (0x%llx) -> %lx\n",
348 orig_pte->may_write ? 'w' : '-', 234 orig_pte->may_write ? 'w' : '-',
@@ -355,6 +241,8 @@ next_pteg:
355 pte->pte = *orig_pte; 241 pte->pte = *orig_pte;
356 pte->pfn = hpaddr >> PAGE_SHIFT; 242 pte->pfn = hpaddr >> PAGE_SHIFT;
357 243
244 kvmppc_mmu_hpte_cache_map(vcpu, pte);
245
358 return 0; 246 return 0;
359} 247}
360 248
@@ -439,7 +327,7 @@ void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu)
439 327
440void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu) 328void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
441{ 329{
442 kvmppc_mmu_pte_flush(vcpu, 0, 0); 330 kvmppc_mmu_hpte_destroy(vcpu);
443 preempt_disable(); 331 preempt_disable();
444 __destroy_context(to_book3s(vcpu)->context_id); 332 __destroy_context(to_book3s(vcpu)->context_id);
445 preempt_enable(); 333 preempt_enable();
@@ -479,5 +367,7 @@ int kvmppc_mmu_init(struct kvm_vcpu *vcpu)
479 htabmask = ((sdr1 & 0x1FF) << 16) | 0xFFC0; 367 htabmask = ((sdr1 & 0x1FF) << 16) | 0xFFC0;
480 htab = (ulong)__va(sdr1 & 0xffff0000); 368 htab = (ulong)__va(sdr1 & 0xffff0000);
481 369
370 kvmppc_mmu_hpte_init(vcpu);
371
482 return 0; 372 return 0;
483} 373}
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index e4b5744977f6..384179a5002b 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -20,6 +20,7 @@
20 */ 20 */
21 21
22#include <linux/kvm_host.h> 22#include <linux/kvm_host.h>
23#include <linux/hash.h>
23 24
24#include <asm/kvm_ppc.h> 25#include <asm/kvm_ppc.h>
25#include <asm/kvm_book3s.h> 26#include <asm/kvm_book3s.h>
@@ -46,135 +47,20 @@
46#define dprintk_slb(a, ...) do { } while(0) 47#define dprintk_slb(a, ...) do { } while(0)
47#endif 48#endif
48 49
49static void invalidate_pte(struct hpte_cache *pte) 50void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
50{ 51{
51 dprintk_mmu("KVM: Flushing SPT: 0x%lx (0x%llx) -> 0x%llx\n",
52 pte->pte.eaddr, pte->pte.vpage, pte->host_va);
53
54 ppc_md.hpte_invalidate(pte->slot, pte->host_va, 52 ppc_md.hpte_invalidate(pte->slot, pte->host_va,
55 MMU_PAGE_4K, MMU_SEGSIZE_256M, 53 MMU_PAGE_4K, MMU_SEGSIZE_256M,
56 false); 54 false);
57 pte->host_va = 0;
58
59 if (pte->pte.may_write)
60 kvm_release_pfn_dirty(pte->pfn);
61 else
62 kvm_release_pfn_clean(pte->pfn);
63}
64
65void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong guest_ea, ulong ea_mask)
66{
67 int i;
68
69 dprintk_mmu("KVM: Flushing %d Shadow PTEs: 0x%lx & 0x%lx\n",
70 vcpu->arch.hpte_cache_offset, guest_ea, ea_mask);
71 BUG_ON(vcpu->arch.hpte_cache_offset > HPTEG_CACHE_NUM);
72
73 guest_ea &= ea_mask;
74 for (i = 0; i < vcpu->arch.hpte_cache_offset; i++) {
75 struct hpte_cache *pte;
76
77 pte = &vcpu->arch.hpte_cache[i];
78 if (!pte->host_va)
79 continue;
80
81 if ((pte->pte.eaddr & ea_mask) == guest_ea) {
82 invalidate_pte(pte);
83 }
84 }
85
86 /* Doing a complete flush -> start from scratch */
87 if (!ea_mask)
88 vcpu->arch.hpte_cache_offset = 0;
89}
90
91void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 guest_vp, u64 vp_mask)
92{
93 int i;
94
95 dprintk_mmu("KVM: Flushing %d Shadow vPTEs: 0x%llx & 0x%llx\n",
96 vcpu->arch.hpte_cache_offset, guest_vp, vp_mask);
97 BUG_ON(vcpu->arch.hpte_cache_offset > HPTEG_CACHE_NUM);
98
99 guest_vp &= vp_mask;
100 for (i = 0; i < vcpu->arch.hpte_cache_offset; i++) {
101 struct hpte_cache *pte;
102
103 pte = &vcpu->arch.hpte_cache[i];
104 if (!pte->host_va)
105 continue;
106
107 if ((pte->pte.vpage & vp_mask) == guest_vp) {
108 invalidate_pte(pte);
109 }
110 }
111}
112
113void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end)
114{
115 int i;
116
117 dprintk_mmu("KVM: Flushing %d Shadow pPTEs: 0x%lx & 0x%lx\n",
118 vcpu->arch.hpte_cache_offset, pa_start, pa_end);
119 BUG_ON(vcpu->arch.hpte_cache_offset > HPTEG_CACHE_NUM);
120
121 for (i = 0; i < vcpu->arch.hpte_cache_offset; i++) {
122 struct hpte_cache *pte;
123
124 pte = &vcpu->arch.hpte_cache[i];
125 if (!pte->host_va)
126 continue;
127
128 if ((pte->pte.raddr >= pa_start) &&
129 (pte->pte.raddr < pa_end)) {
130 invalidate_pte(pte);
131 }
132 }
133}
134
135struct kvmppc_pte *kvmppc_mmu_find_pte(struct kvm_vcpu *vcpu, u64 ea, bool data)
136{
137 int i;
138 u64 guest_vp;
139
140 guest_vp = vcpu->arch.mmu.ea_to_vp(vcpu, ea, false);
141 for (i=0; i<vcpu->arch.hpte_cache_offset; i++) {
142 struct hpte_cache *pte;
143
144 pte = &vcpu->arch.hpte_cache[i];
145 if (!pte->host_va)
146 continue;
147
148 if (pte->pte.vpage == guest_vp)
149 return &pte->pte;
150 }
151
152 return NULL;
153}
154
155static int kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu)
156{
157 if (vcpu->arch.hpte_cache_offset == HPTEG_CACHE_NUM)
158 kvmppc_mmu_pte_flush(vcpu, 0, 0);
159
160 return vcpu->arch.hpte_cache_offset++;
161} 55}
162 56
163/* We keep 512 gvsid->hvsid entries, mapping the guest ones to the array using 57/* We keep 512 gvsid->hvsid entries, mapping the guest ones to the array using
164 * a hash, so we don't waste cycles on looping */ 58 * a hash, so we don't waste cycles on looping */
165static u16 kvmppc_sid_hash(struct kvm_vcpu *vcpu, u64 gvsid) 59static u16 kvmppc_sid_hash(struct kvm_vcpu *vcpu, u64 gvsid)
166{ 60{
167 return (u16)(((gvsid >> (SID_MAP_BITS * 7)) & SID_MAP_MASK) ^ 61 return hash_64(gvsid, SID_MAP_BITS);
168 ((gvsid >> (SID_MAP_BITS * 6)) & SID_MAP_MASK) ^
169 ((gvsid >> (SID_MAP_BITS * 5)) & SID_MAP_MASK) ^
170 ((gvsid >> (SID_MAP_BITS * 4)) & SID_MAP_MASK) ^
171 ((gvsid >> (SID_MAP_BITS * 3)) & SID_MAP_MASK) ^
172 ((gvsid >> (SID_MAP_BITS * 2)) & SID_MAP_MASK) ^
173 ((gvsid >> (SID_MAP_BITS * 1)) & SID_MAP_MASK) ^
174 ((gvsid >> (SID_MAP_BITS * 0)) & SID_MAP_MASK));
175} 62}
176 63
177
178static struct kvmppc_sid_map *find_sid_vsid(struct kvm_vcpu *vcpu, u64 gvsid) 64static struct kvmppc_sid_map *find_sid_vsid(struct kvm_vcpu *vcpu, u64 gvsid)
179{ 65{
180 struct kvmppc_sid_map *map; 66 struct kvmppc_sid_map *map;
@@ -273,8 +159,7 @@ map_again:
273 attempt++; 159 attempt++;
274 goto map_again; 160 goto map_again;
275 } else { 161 } else {
276 int hpte_id = kvmppc_mmu_hpte_cache_next(vcpu); 162 struct hpte_cache *pte = kvmppc_mmu_hpte_cache_next(vcpu);
277 struct hpte_cache *pte = &vcpu->arch.hpte_cache[hpte_id];
278 163
279 dprintk_mmu("KVM: %c%c Map 0x%lx: [%lx] 0x%lx (0x%llx) -> %lx\n", 164 dprintk_mmu("KVM: %c%c Map 0x%lx: [%lx] 0x%lx (0x%llx) -> %lx\n",
280 ((rflags & HPTE_R_PP) == 3) ? '-' : 'w', 165 ((rflags & HPTE_R_PP) == 3) ? '-' : 'w',
@@ -292,6 +177,8 @@ map_again:
292 pte->host_va = va; 177 pte->host_va = va;
293 pte->pte = *orig_pte; 178 pte->pte = *orig_pte;
294 pte->pfn = hpaddr >> PAGE_SHIFT; 179 pte->pfn = hpaddr >> PAGE_SHIFT;
180
181 kvmppc_mmu_hpte_cache_map(vcpu, pte);
295 } 182 }
296 183
297 return 0; 184 return 0;
@@ -418,7 +305,7 @@ void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu)
418 305
419void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu) 306void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
420{ 307{
421 kvmppc_mmu_pte_flush(vcpu, 0, 0); 308 kvmppc_mmu_hpte_destroy(vcpu);
422 __destroy_context(to_book3s(vcpu)->context_id); 309 __destroy_context(to_book3s(vcpu)->context_id);
423} 310}
424 311
@@ -436,5 +323,7 @@ int kvmppc_mmu_init(struct kvm_vcpu *vcpu)
436 vcpu3s->vsid_first = vcpu3s->context_id << USER_ESID_BITS; 323 vcpu3s->vsid_first = vcpu3s->context_id << USER_ESID_BITS;
437 vcpu3s->vsid_next = vcpu3s->vsid_first; 324 vcpu3s->vsid_next = vcpu3s->vsid_first;
438 325
326 kvmppc_mmu_hpte_init(vcpu);
327
439 return 0; 328 return 0;
440} 329}
diff --git a/arch/powerpc/kvm/book3s_mmu_hpte.c b/arch/powerpc/kvm/book3s_mmu_hpte.c
new file mode 100644
index 000000000000..4868d4a7ebc5
--- /dev/null
+++ b/arch/powerpc/kvm/book3s_mmu_hpte.c
@@ -0,0 +1,277 @@
1/*
2 * Copyright (C) 2010 SUSE Linux Products GmbH. All rights reserved.
3 *
4 * Authors:
5 * Alexander Graf <agraf@suse.de>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License, version 2, as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21#include <linux/kvm_host.h>
22#include <linux/hash.h>
23#include <linux/slab.h>
24
25#include <asm/kvm_ppc.h>
26#include <asm/kvm_book3s.h>
27#include <asm/machdep.h>
28#include <asm/mmu_context.h>
29#include <asm/hw_irq.h>
30
31#define PTE_SIZE 12
32
33/* #define DEBUG_MMU */
34
35#ifdef DEBUG_MMU
36#define dprintk_mmu(a, ...) printk(KERN_INFO a, __VA_ARGS__)
37#else
38#define dprintk_mmu(a, ...) do { } while(0)
39#endif
40
41static struct kmem_cache *hpte_cache;
42
43static inline u64 kvmppc_mmu_hash_pte(u64 eaddr)
44{
45 return hash_64(eaddr >> PTE_SIZE, HPTEG_HASH_BITS_PTE);
46}
47
48static inline u64 kvmppc_mmu_hash_vpte(u64 vpage)
49{
50 return hash_64(vpage & 0xfffffffffULL, HPTEG_HASH_BITS_VPTE);
51}
52
53static inline u64 kvmppc_mmu_hash_vpte_long(u64 vpage)
54{
55 return hash_64((vpage & 0xffffff000ULL) >> 12,
56 HPTEG_HASH_BITS_VPTE_LONG);
57}
58
59void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
60{
61 u64 index;
62
63 /* Add to ePTE list */
64 index = kvmppc_mmu_hash_pte(pte->pte.eaddr);
65 hlist_add_head(&pte->list_pte, &vcpu->arch.hpte_hash_pte[index]);
66
67 /* Add to vPTE list */
68 index = kvmppc_mmu_hash_vpte(pte->pte.vpage);
69 hlist_add_head(&pte->list_vpte, &vcpu->arch.hpte_hash_vpte[index]);
70
71 /* Add to vPTE_long list */
72 index = kvmppc_mmu_hash_vpte_long(pte->pte.vpage);
73 hlist_add_head(&pte->list_vpte_long,
74 &vcpu->arch.hpte_hash_vpte_long[index]);
75}
76
77static void invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
78{
79 dprintk_mmu("KVM: Flushing SPT: 0x%lx (0x%llx) -> 0x%llx\n",
80 pte->pte.eaddr, pte->pte.vpage, pte->host_va);
81
82 /* Different for 32 and 64 bit */
83 kvmppc_mmu_invalidate_pte(vcpu, pte);
84
85 if (pte->pte.may_write)
86 kvm_release_pfn_dirty(pte->pfn);
87 else
88 kvm_release_pfn_clean(pte->pfn);
89
90 hlist_del(&pte->list_pte);
91 hlist_del(&pte->list_vpte);
92 hlist_del(&pte->list_vpte_long);
93
94 vcpu->arch.hpte_cache_count--;
95 kmem_cache_free(hpte_cache, pte);
96}
97
98static void kvmppc_mmu_pte_flush_all(struct kvm_vcpu *vcpu)
99{
100 struct hpte_cache *pte;
101 struct hlist_node *node, *tmp;
102 int i;
103
104 for (i = 0; i < HPTEG_HASH_NUM_VPTE_LONG; i++) {
105 struct hlist_head *list = &vcpu->arch.hpte_hash_vpte_long[i];
106
107 hlist_for_each_entry_safe(pte, node, tmp, list, list_vpte_long)
108 invalidate_pte(vcpu, pte);
109 }
110}
111
112static void kvmppc_mmu_pte_flush_page(struct kvm_vcpu *vcpu, ulong guest_ea)
113{
114 struct hlist_head *list;
115 struct hlist_node *node, *tmp;
116 struct hpte_cache *pte;
117
118 /* Find the list of entries in the map */
119 list = &vcpu->arch.hpte_hash_pte[kvmppc_mmu_hash_pte(guest_ea)];
120
121 /* Check the list for matching entries and invalidate */
122 hlist_for_each_entry_safe(pte, node, tmp, list, list_pte)
123 if ((pte->pte.eaddr & ~0xfffUL) == guest_ea)
124 invalidate_pte(vcpu, pte);
125}
126
127void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong guest_ea, ulong ea_mask)
128{
129 u64 i;
130
131 dprintk_mmu("KVM: Flushing %d Shadow PTEs: 0x%lx & 0x%lx\n",
132 vcpu->arch.hpte_cache_count, guest_ea, ea_mask);
133
134 guest_ea &= ea_mask;
135
136 switch (ea_mask) {
137 case ~0xfffUL:
138 kvmppc_mmu_pte_flush_page(vcpu, guest_ea);
139 break;
140 case 0x0ffff000:
141 /* 32-bit flush w/o segment, go through all possible segments */
142 for (i = 0; i < 0x100000000ULL; i += 0x10000000ULL)
143 kvmppc_mmu_pte_flush(vcpu, guest_ea | i, ~0xfffUL);
144 break;
145 case 0:
146 /* Doing a complete flush -> start from scratch */
147 kvmppc_mmu_pte_flush_all(vcpu);
148 break;
149 default:
150 WARN_ON(1);
151 break;
152 }
153}
154
155/* Flush with mask 0xfffffffff */
156static void kvmppc_mmu_pte_vflush_short(struct kvm_vcpu *vcpu, u64 guest_vp)
157{
158 struct hlist_head *list;
159 struct hlist_node *node, *tmp;
160 struct hpte_cache *pte;
161 u64 vp_mask = 0xfffffffffULL;
162
163 list = &vcpu->arch.hpte_hash_vpte[kvmppc_mmu_hash_vpte(guest_vp)];
164
165 /* Check the list for matching entries and invalidate */
166 hlist_for_each_entry_safe(pte, node, tmp, list, list_vpte)
167 if ((pte->pte.vpage & vp_mask) == guest_vp)
168 invalidate_pte(vcpu, pte);
169}
170
171/* Flush with mask 0xffffff000 */
172static void kvmppc_mmu_pte_vflush_long(struct kvm_vcpu *vcpu, u64 guest_vp)
173{
174 struct hlist_head *list;
175 struct hlist_node *node, *tmp;
176 struct hpte_cache *pte;
177 u64 vp_mask = 0xffffff000ULL;
178
179 list = &vcpu->arch.hpte_hash_vpte_long[
180 kvmppc_mmu_hash_vpte_long(guest_vp)];
181
182 /* Check the list for matching entries and invalidate */
183 hlist_for_each_entry_safe(pte, node, tmp, list, list_vpte_long)
184 if ((pte->pte.vpage & vp_mask) == guest_vp)
185 invalidate_pte(vcpu, pte);
186}
187
188void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 guest_vp, u64 vp_mask)
189{
190 dprintk_mmu("KVM: Flushing %d Shadow vPTEs: 0x%llx & 0x%llx\n",
191 vcpu->arch.hpte_cache_count, guest_vp, vp_mask);
192 guest_vp &= vp_mask;
193
194 switch(vp_mask) {
195 case 0xfffffffffULL:
196 kvmppc_mmu_pte_vflush_short(vcpu, guest_vp);
197 break;
198 case 0xffffff000ULL:
199 kvmppc_mmu_pte_vflush_long(vcpu, guest_vp);
200 break;
201 default:
202 WARN_ON(1);
203 return;
204 }
205}
206
207void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end)
208{
209 struct hlist_node *node, *tmp;
210 struct hpte_cache *pte;
211 int i;
212
213 dprintk_mmu("KVM: Flushing %d Shadow pPTEs: 0x%lx - 0x%lx\n",
214 vcpu->arch.hpte_cache_count, pa_start, pa_end);
215
216 for (i = 0; i < HPTEG_HASH_NUM_VPTE_LONG; i++) {
217 struct hlist_head *list = &vcpu->arch.hpte_hash_vpte_long[i];
218
219 hlist_for_each_entry_safe(pte, node, tmp, list, list_vpte_long)
220 if ((pte->pte.raddr >= pa_start) &&
221 (pte->pte.raddr < pa_end))
222 invalidate_pte(vcpu, pte);
223 }
224}
225
226struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu)
227{
228 struct hpte_cache *pte;
229
230 pte = kmem_cache_zalloc(hpte_cache, GFP_KERNEL);
231 vcpu->arch.hpte_cache_count++;
232
233 if (vcpu->arch.hpte_cache_count == HPTEG_CACHE_NUM)
234 kvmppc_mmu_pte_flush_all(vcpu);
235
236 return pte;
237}
238
239void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu)
240{
241 kvmppc_mmu_pte_flush(vcpu, 0, 0);
242}
243
244static void kvmppc_mmu_hpte_init_hash(struct hlist_head *hash_list, int len)
245{
246 int i;
247
248 for (i = 0; i < len; i++)
249 INIT_HLIST_HEAD(&hash_list[i]);
250}
251
252int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu)
253{
254 /* init hpte lookup hashes */
255 kvmppc_mmu_hpte_init_hash(vcpu->arch.hpte_hash_pte,
256 ARRAY_SIZE(vcpu->arch.hpte_hash_pte));
257 kvmppc_mmu_hpte_init_hash(vcpu->arch.hpte_hash_vpte,
258 ARRAY_SIZE(vcpu->arch.hpte_hash_vpte));
259 kvmppc_mmu_hpte_init_hash(vcpu->arch.hpte_hash_vpte_long,
260 ARRAY_SIZE(vcpu->arch.hpte_hash_vpte_long));
261
262 return 0;
263}
264
265int kvmppc_mmu_hpte_sysinit(void)
266{
267 /* init hpte slab cache */
268 hpte_cache = kmem_cache_create("kvm-spt", sizeof(struct hpte_cache),
269 sizeof(struct hpte_cache), 0, NULL);
270
271 return 0;
272}
273
274void kvmppc_mmu_hpte_sysexit(void)
275{
276 kmem_cache_destroy(hpte_cache);
277}
diff --git a/arch/powerpc/kvm/book3s_paired_singles.c b/arch/powerpc/kvm/book3s_paired_singles.c
index a9f66abafcb3..474f2e24050a 100644
--- a/arch/powerpc/kvm/book3s_paired_singles.c
+++ b/arch/powerpc/kvm/book3s_paired_singles.c
@@ -159,10 +159,7 @@
159 159
160static inline void kvmppc_sync_qpr(struct kvm_vcpu *vcpu, int rt) 160static inline void kvmppc_sync_qpr(struct kvm_vcpu *vcpu, int rt)
161{ 161{
162 struct thread_struct t; 162 kvm_cvt_df(&vcpu->arch.fpr[rt], &vcpu->arch.qpr[rt], &vcpu->arch.fpscr);
163
164 t.fpscr.val = vcpu->arch.fpscr;
165 cvt_df((double*)&vcpu->arch.fpr[rt], (float*)&vcpu->arch.qpr[rt], &t);
166} 163}
167 164
168static void kvmppc_inject_pf(struct kvm_vcpu *vcpu, ulong eaddr, bool is_store) 165static void kvmppc_inject_pf(struct kvm_vcpu *vcpu, ulong eaddr, bool is_store)
@@ -183,7 +180,6 @@ static int kvmppc_emulate_fpr_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
183 int rs, ulong addr, int ls_type) 180 int rs, ulong addr, int ls_type)
184{ 181{
185 int emulated = EMULATE_FAIL; 182 int emulated = EMULATE_FAIL;
186 struct thread_struct t;
187 int r; 183 int r;
188 char tmp[8]; 184 char tmp[8];
189 int len = sizeof(u32); 185 int len = sizeof(u32);
@@ -191,8 +187,6 @@ static int kvmppc_emulate_fpr_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
191 if (ls_type == FPU_LS_DOUBLE) 187 if (ls_type == FPU_LS_DOUBLE)
192 len = sizeof(u64); 188 len = sizeof(u64);
193 189
194 t.fpscr.val = vcpu->arch.fpscr;
195
196 /* read from memory */ 190 /* read from memory */
197 r = kvmppc_ld(vcpu, &addr, len, tmp, true); 191 r = kvmppc_ld(vcpu, &addr, len, tmp, true);
198 vcpu->arch.paddr_accessed = addr; 192 vcpu->arch.paddr_accessed = addr;
@@ -210,7 +204,7 @@ static int kvmppc_emulate_fpr_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
210 /* put in registers */ 204 /* put in registers */
211 switch (ls_type) { 205 switch (ls_type) {
212 case FPU_LS_SINGLE: 206 case FPU_LS_SINGLE:
213 cvt_fd((float*)tmp, (double*)&vcpu->arch.fpr[rs], &t); 207 kvm_cvt_fd((u32*)tmp, &vcpu->arch.fpr[rs], &vcpu->arch.fpscr);
214 vcpu->arch.qpr[rs] = *((u32*)tmp); 208 vcpu->arch.qpr[rs] = *((u32*)tmp);
215 break; 209 break;
216 case FPU_LS_DOUBLE: 210 case FPU_LS_DOUBLE:
@@ -229,17 +223,14 @@ static int kvmppc_emulate_fpr_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
229 int rs, ulong addr, int ls_type) 223 int rs, ulong addr, int ls_type)
230{ 224{
231 int emulated = EMULATE_FAIL; 225 int emulated = EMULATE_FAIL;
232 struct thread_struct t;
233 int r; 226 int r;
234 char tmp[8]; 227 char tmp[8];
235 u64 val; 228 u64 val;
236 int len; 229 int len;
237 230
238 t.fpscr.val = vcpu->arch.fpscr;
239
240 switch (ls_type) { 231 switch (ls_type) {
241 case FPU_LS_SINGLE: 232 case FPU_LS_SINGLE:
242 cvt_df((double*)&vcpu->arch.fpr[rs], (float*)tmp, &t); 233 kvm_cvt_df(&vcpu->arch.fpr[rs], (u32*)tmp, &vcpu->arch.fpscr);
243 val = *((u32*)tmp); 234 val = *((u32*)tmp);
244 len = sizeof(u32); 235 len = sizeof(u32);
245 break; 236 break;
@@ -278,13 +269,10 @@ static int kvmppc_emulate_psq_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
278 int rs, ulong addr, bool w, int i) 269 int rs, ulong addr, bool w, int i)
279{ 270{
280 int emulated = EMULATE_FAIL; 271 int emulated = EMULATE_FAIL;
281 struct thread_struct t;
282 int r; 272 int r;
283 float one = 1.0; 273 float one = 1.0;
284 u32 tmp[2]; 274 u32 tmp[2];
285 275
286 t.fpscr.val = vcpu->arch.fpscr;
287
288 /* read from memory */ 276 /* read from memory */
289 if (w) { 277 if (w) {
290 r = kvmppc_ld(vcpu, &addr, sizeof(u32), tmp, true); 278 r = kvmppc_ld(vcpu, &addr, sizeof(u32), tmp, true);
@@ -308,7 +296,7 @@ static int kvmppc_emulate_psq_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
308 emulated = EMULATE_DONE; 296 emulated = EMULATE_DONE;
309 297
310 /* put in registers */ 298 /* put in registers */
311 cvt_fd((float*)&tmp[0], (double*)&vcpu->arch.fpr[rs], &t); 299 kvm_cvt_fd(&tmp[0], &vcpu->arch.fpr[rs], &vcpu->arch.fpscr);
312 vcpu->arch.qpr[rs] = tmp[1]; 300 vcpu->arch.qpr[rs] = tmp[1];
313 301
314 dprintk(KERN_INFO "KVM: PSQ_LD [0x%x, 0x%x] at 0x%lx (%d)\n", tmp[0], 302 dprintk(KERN_INFO "KVM: PSQ_LD [0x%x, 0x%x] at 0x%lx (%d)\n", tmp[0],
@@ -322,14 +310,11 @@ static int kvmppc_emulate_psq_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
322 int rs, ulong addr, bool w, int i) 310 int rs, ulong addr, bool w, int i)
323{ 311{
324 int emulated = EMULATE_FAIL; 312 int emulated = EMULATE_FAIL;
325 struct thread_struct t;
326 int r; 313 int r;
327 u32 tmp[2]; 314 u32 tmp[2];
328 int len = w ? sizeof(u32) : sizeof(u64); 315 int len = w ? sizeof(u32) : sizeof(u64);
329 316
330 t.fpscr.val = vcpu->arch.fpscr; 317 kvm_cvt_df(&vcpu->arch.fpr[rs], &tmp[0], &vcpu->arch.fpscr);
331
332 cvt_df((double*)&vcpu->arch.fpr[rs], (float*)&tmp[0], &t);
333 tmp[1] = vcpu->arch.qpr[rs]; 318 tmp[1] = vcpu->arch.qpr[rs];
334 319
335 r = kvmppc_st(vcpu, &addr, len, tmp, true); 320 r = kvmppc_st(vcpu, &addr, len, tmp, true);
@@ -517,7 +502,7 @@ static int get_d_signext(u32 inst)
517static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc, 502static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
518 int reg_out, int reg_in1, int reg_in2, 503 int reg_out, int reg_in1, int reg_in2,
519 int reg_in3, int scalar, 504 int reg_in3, int scalar,
520 void (*func)(struct thread_struct *t, 505 void (*func)(u64 *fpscr,
521 u32 *dst, u32 *src1, 506 u32 *dst, u32 *src1,
522 u32 *src2, u32 *src3)) 507 u32 *src2, u32 *src3))
523{ 508{
@@ -526,27 +511,25 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
526 u32 ps0_out; 511 u32 ps0_out;
527 u32 ps0_in1, ps0_in2, ps0_in3; 512 u32 ps0_in1, ps0_in2, ps0_in3;
528 u32 ps1_in1, ps1_in2, ps1_in3; 513 u32 ps1_in1, ps1_in2, ps1_in3;
529 struct thread_struct t;
530 t.fpscr.val = vcpu->arch.fpscr;
531 514
532 /* RC */ 515 /* RC */
533 WARN_ON(rc); 516 WARN_ON(rc);
534 517
535 /* PS0 */ 518 /* PS0 */
536 cvt_df((double*)&fpr[reg_in1], (float*)&ps0_in1, &t); 519 kvm_cvt_df(&fpr[reg_in1], &ps0_in1, &vcpu->arch.fpscr);
537 cvt_df((double*)&fpr[reg_in2], (float*)&ps0_in2, &t); 520 kvm_cvt_df(&fpr[reg_in2], &ps0_in2, &vcpu->arch.fpscr);
538 cvt_df((double*)&fpr[reg_in3], (float*)&ps0_in3, &t); 521 kvm_cvt_df(&fpr[reg_in3], &ps0_in3, &vcpu->arch.fpscr);
539 522
540 if (scalar & SCALAR_LOW) 523 if (scalar & SCALAR_LOW)
541 ps0_in2 = qpr[reg_in2]; 524 ps0_in2 = qpr[reg_in2];
542 525
543 func(&t, &ps0_out, &ps0_in1, &ps0_in2, &ps0_in3); 526 func(&vcpu->arch.fpscr, &ps0_out, &ps0_in1, &ps0_in2, &ps0_in3);
544 527
545 dprintk(KERN_INFO "PS3 ps0 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n", 528 dprintk(KERN_INFO "PS3 ps0 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n",
546 ps0_in1, ps0_in2, ps0_in3, ps0_out); 529 ps0_in1, ps0_in2, ps0_in3, ps0_out);
547 530
548 if (!(scalar & SCALAR_NO_PS0)) 531 if (!(scalar & SCALAR_NO_PS0))
549 cvt_fd((float*)&ps0_out, (double*)&fpr[reg_out], &t); 532 kvm_cvt_fd(&ps0_out, &fpr[reg_out], &vcpu->arch.fpscr);
550 533
551 /* PS1 */ 534 /* PS1 */
552 ps1_in1 = qpr[reg_in1]; 535 ps1_in1 = qpr[reg_in1];
@@ -557,7 +540,7 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
557 ps1_in2 = ps0_in2; 540 ps1_in2 = ps0_in2;
558 541
559 if (!(scalar & SCALAR_NO_PS1)) 542 if (!(scalar & SCALAR_NO_PS1))
560 func(&t, &qpr[reg_out], &ps1_in1, &ps1_in2, &ps1_in3); 543 func(&vcpu->arch.fpscr, &qpr[reg_out], &ps1_in1, &ps1_in2, &ps1_in3);
561 544
562 dprintk(KERN_INFO "PS3 ps1 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n", 545 dprintk(KERN_INFO "PS3 ps1 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n",
563 ps1_in1, ps1_in2, ps1_in3, qpr[reg_out]); 546 ps1_in1, ps1_in2, ps1_in3, qpr[reg_out]);
@@ -568,7 +551,7 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
568static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc, 551static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
569 int reg_out, int reg_in1, int reg_in2, 552 int reg_out, int reg_in1, int reg_in2,
570 int scalar, 553 int scalar,
571 void (*func)(struct thread_struct *t, 554 void (*func)(u64 *fpscr,
572 u32 *dst, u32 *src1, 555 u32 *dst, u32 *src1,
573 u32 *src2)) 556 u32 *src2))
574{ 557{
@@ -578,27 +561,25 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
578 u32 ps0_in1, ps0_in2; 561 u32 ps0_in1, ps0_in2;
579 u32 ps1_out; 562 u32 ps1_out;
580 u32 ps1_in1, ps1_in2; 563 u32 ps1_in1, ps1_in2;
581 struct thread_struct t;
582 t.fpscr.val = vcpu->arch.fpscr;
583 564
584 /* RC */ 565 /* RC */
585 WARN_ON(rc); 566 WARN_ON(rc);
586 567
587 /* PS0 */ 568 /* PS0 */
588 cvt_df((double*)&fpr[reg_in1], (float*)&ps0_in1, &t); 569 kvm_cvt_df(&fpr[reg_in1], &ps0_in1, &vcpu->arch.fpscr);
589 570
590 if (scalar & SCALAR_LOW) 571 if (scalar & SCALAR_LOW)
591 ps0_in2 = qpr[reg_in2]; 572 ps0_in2 = qpr[reg_in2];
592 else 573 else
593 cvt_df((double*)&fpr[reg_in2], (float*)&ps0_in2, &t); 574 kvm_cvt_df(&fpr[reg_in2], &ps0_in2, &vcpu->arch.fpscr);
594 575
595 func(&t, &ps0_out, &ps0_in1, &ps0_in2); 576 func(&vcpu->arch.fpscr, &ps0_out, &ps0_in1, &ps0_in2);
596 577
597 if (!(scalar & SCALAR_NO_PS0)) { 578 if (!(scalar & SCALAR_NO_PS0)) {
598 dprintk(KERN_INFO "PS2 ps0 -> f(0x%x, 0x%x) = 0x%x\n", 579 dprintk(KERN_INFO "PS2 ps0 -> f(0x%x, 0x%x) = 0x%x\n",
599 ps0_in1, ps0_in2, ps0_out); 580 ps0_in1, ps0_in2, ps0_out);
600 581
601 cvt_fd((float*)&ps0_out, (double*)&fpr[reg_out], &t); 582 kvm_cvt_fd(&ps0_out, &fpr[reg_out], &vcpu->arch.fpscr);
602 } 583 }
603 584
604 /* PS1 */ 585 /* PS1 */
@@ -608,7 +589,7 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
608 if (scalar & SCALAR_HIGH) 589 if (scalar & SCALAR_HIGH)
609 ps1_in2 = ps0_in2; 590 ps1_in2 = ps0_in2;
610 591
611 func(&t, &ps1_out, &ps1_in1, &ps1_in2); 592 func(&vcpu->arch.fpscr, &ps1_out, &ps1_in1, &ps1_in2);
612 593
613 if (!(scalar & SCALAR_NO_PS1)) { 594 if (!(scalar & SCALAR_NO_PS1)) {
614 qpr[reg_out] = ps1_out; 595 qpr[reg_out] = ps1_out;
@@ -622,31 +603,29 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
622 603
623static int kvmppc_ps_one_in(struct kvm_vcpu *vcpu, bool rc, 604static int kvmppc_ps_one_in(struct kvm_vcpu *vcpu, bool rc,
624 int reg_out, int reg_in, 605 int reg_out, int reg_in,
625 void (*func)(struct thread_struct *t, 606 void (*func)(u64 *t,
626 u32 *dst, u32 *src1)) 607 u32 *dst, u32 *src1))
627{ 608{
628 u32 *qpr = vcpu->arch.qpr; 609 u32 *qpr = vcpu->arch.qpr;
629 u64 *fpr = vcpu->arch.fpr; 610 u64 *fpr = vcpu->arch.fpr;
630 u32 ps0_out, ps0_in; 611 u32 ps0_out, ps0_in;
631 u32 ps1_in; 612 u32 ps1_in;
632 struct thread_struct t;
633 t.fpscr.val = vcpu->arch.fpscr;
634 613
635 /* RC */ 614 /* RC */
636 WARN_ON(rc); 615 WARN_ON(rc);
637 616
638 /* PS0 */ 617 /* PS0 */
639 cvt_df((double*)&fpr[reg_in], (float*)&ps0_in, &t); 618 kvm_cvt_df(&fpr[reg_in], &ps0_in, &vcpu->arch.fpscr);
640 func(&t, &ps0_out, &ps0_in); 619 func(&vcpu->arch.fpscr, &ps0_out, &ps0_in);
641 620
642 dprintk(KERN_INFO "PS1 ps0 -> f(0x%x) = 0x%x\n", 621 dprintk(KERN_INFO "PS1 ps0 -> f(0x%x) = 0x%x\n",
643 ps0_in, ps0_out); 622 ps0_in, ps0_out);
644 623
645 cvt_fd((float*)&ps0_out, (double*)&fpr[reg_out], &t); 624 kvm_cvt_fd(&ps0_out, &fpr[reg_out], &vcpu->arch.fpscr);
646 625
647 /* PS1 */ 626 /* PS1 */
648 ps1_in = qpr[reg_in]; 627 ps1_in = qpr[reg_in];
649 func(&t, &qpr[reg_out], &ps1_in); 628 func(&vcpu->arch.fpscr, &qpr[reg_out], &ps1_in);
650 629
651 dprintk(KERN_INFO "PS1 ps1 -> f(0x%x) = 0x%x\n", 630 dprintk(KERN_INFO "PS1 ps1 -> f(0x%x) = 0x%x\n",
652 ps1_in, qpr[reg_out]); 631 ps1_in, qpr[reg_out]);
@@ -672,13 +651,10 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
672 651
673 bool rcomp = (inst & 1) ? true : false; 652 bool rcomp = (inst & 1) ? true : false;
674 u32 cr = kvmppc_get_cr(vcpu); 653 u32 cr = kvmppc_get_cr(vcpu);
675 struct thread_struct t;
676#ifdef DEBUG 654#ifdef DEBUG
677 int i; 655 int i;
678#endif 656#endif
679 657
680 t.fpscr.val = vcpu->arch.fpscr;
681
682 if (!kvmppc_inst_is_paired_single(vcpu, inst)) 658 if (!kvmppc_inst_is_paired_single(vcpu, inst))
683 return EMULATE_FAIL; 659 return EMULATE_FAIL;
684 660
@@ -695,7 +671,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
695#ifdef DEBUG 671#ifdef DEBUG
696 for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) { 672 for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
697 u32 f; 673 u32 f;
698 cvt_df((double*)&vcpu->arch.fpr[i], (float*)&f, &t); 674 kvm_cvt_df(&vcpu->arch.fpr[i], &f, &vcpu->arch.fpscr);
699 dprintk(KERN_INFO "FPR[%d] = 0x%x / 0x%llx QPR[%d] = 0x%x\n", 675 dprintk(KERN_INFO "FPR[%d] = 0x%x / 0x%llx QPR[%d] = 0x%x\n",
700 i, f, vcpu->arch.fpr[i], i, vcpu->arch.qpr[i]); 676 i, f, vcpu->arch.fpr[i], i, vcpu->arch.qpr[i]);
701 } 677 }
@@ -819,8 +795,9 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
819 WARN_ON(rcomp); 795 WARN_ON(rcomp);
820 vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_ra]; 796 vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_ra];
821 /* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */ 797 /* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
822 cvt_df((double*)&vcpu->arch.fpr[ax_rb], 798 kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
823 (float*)&vcpu->arch.qpr[ax_rd], &t); 799 &vcpu->arch.qpr[ax_rd],
800 &vcpu->arch.fpscr);
824 break; 801 break;
825 case OP_4X_PS_MERGE01: 802 case OP_4X_PS_MERGE01:
826 WARN_ON(rcomp); 803 WARN_ON(rcomp);
@@ -830,17 +807,20 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
830 case OP_4X_PS_MERGE10: 807 case OP_4X_PS_MERGE10:
831 WARN_ON(rcomp); 808 WARN_ON(rcomp);
832 /* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */ 809 /* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
833 cvt_fd((float*)&vcpu->arch.qpr[ax_ra], 810 kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
834 (double*)&vcpu->arch.fpr[ax_rd], &t); 811 &vcpu->arch.fpr[ax_rd],
812 &vcpu->arch.fpscr);
835 /* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */ 813 /* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
836 cvt_df((double*)&vcpu->arch.fpr[ax_rb], 814 kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
837 (float*)&vcpu->arch.qpr[ax_rd], &t); 815 &vcpu->arch.qpr[ax_rd],
816 &vcpu->arch.fpscr);
838 break; 817 break;
839 case OP_4X_PS_MERGE11: 818 case OP_4X_PS_MERGE11:
840 WARN_ON(rcomp); 819 WARN_ON(rcomp);
841 /* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */ 820 /* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
842 cvt_fd((float*)&vcpu->arch.qpr[ax_ra], 821 kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
843 (double*)&vcpu->arch.fpr[ax_rd], &t); 822 &vcpu->arch.fpr[ax_rd],
823 &vcpu->arch.fpscr);
844 vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb]; 824 vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
845 break; 825 break;
846 } 826 }
@@ -1275,7 +1255,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
1275#ifdef DEBUG 1255#ifdef DEBUG
1276 for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) { 1256 for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
1277 u32 f; 1257 u32 f;
1278 cvt_df((double*)&vcpu->arch.fpr[i], (float*)&f, &t); 1258 kvm_cvt_df(&vcpu->arch.fpr[i], &f, &vcpu->arch.fpscr);
1279 dprintk(KERN_INFO "FPR[%d] = 0x%x\n", i, f); 1259 dprintk(KERN_INFO "FPR[%d] = 0x%x\n", i, f);
1280 } 1260 }
1281#endif 1261#endif
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index a33ab8cc2ccc..8d4e35f5372c 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -144,7 +144,7 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
144 unsigned int priority) 144 unsigned int priority)
145{ 145{
146 int allowed = 0; 146 int allowed = 0;
147 ulong msr_mask; 147 ulong uninitialized_var(msr_mask);
148 bool update_esr = false, update_dear = false; 148 bool update_esr = false, update_dear = false;
149 149
150 switch (priority) { 150 switch (priority) {
@@ -485,8 +485,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
485{ 485{
486 int i; 486 int i;
487 487
488 vcpu_load(vcpu);
489
490 regs->pc = vcpu->arch.pc; 488 regs->pc = vcpu->arch.pc;
491 regs->cr = kvmppc_get_cr(vcpu); 489 regs->cr = kvmppc_get_cr(vcpu);
492 regs->ctr = vcpu->arch.ctr; 490 regs->ctr = vcpu->arch.ctr;
@@ -507,8 +505,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
507 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) 505 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
508 regs->gpr[i] = kvmppc_get_gpr(vcpu, i); 506 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
509 507
510 vcpu_put(vcpu);
511
512 return 0; 508 return 0;
513} 509}
514 510
@@ -516,8 +512,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
516{ 512{
517 int i; 513 int i;
518 514
519 vcpu_load(vcpu);
520
521 vcpu->arch.pc = regs->pc; 515 vcpu->arch.pc = regs->pc;
522 kvmppc_set_cr(vcpu, regs->cr); 516 kvmppc_set_cr(vcpu, regs->cr);
523 vcpu->arch.ctr = regs->ctr; 517 vcpu->arch.ctr = regs->ctr;
@@ -537,8 +531,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
537 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) 531 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
538 kvmppc_set_gpr(vcpu, i, regs->gpr[i]); 532 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
539 533
540 vcpu_put(vcpu);
541
542 return 0; 534 return 0;
543} 535}
544 536
@@ -569,9 +561,7 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
569{ 561{
570 int r; 562 int r;
571 563
572 vcpu_load(vcpu);
573 r = kvmppc_core_vcpu_translate(vcpu, tr); 564 r = kvmppc_core_vcpu_translate(vcpu, tr);
574 vcpu_put(vcpu);
575 return r; 565 return r;
576} 566}
577 567
diff --git a/arch/powerpc/kvm/fpu.S b/arch/powerpc/kvm/fpu.S
index 2b340a3eee90..cb34bbe16113 100644
--- a/arch/powerpc/kvm/fpu.S
+++ b/arch/powerpc/kvm/fpu.S
@@ -271,3 +271,21 @@ FPD_THREE_IN(fmsub)
271FPD_THREE_IN(fmadd) 271FPD_THREE_IN(fmadd)
272FPD_THREE_IN(fnmsub) 272FPD_THREE_IN(fnmsub)
273FPD_THREE_IN(fnmadd) 273FPD_THREE_IN(fnmadd)
274
275_GLOBAL(kvm_cvt_fd)
276 lfd 0,0(r5) /* load up fpscr value */
277 MTFSF_L(0)
278 lfs 0,0(r3)
279 stfd 0,0(r4)
280 mffs 0
281 stfd 0,0(r5) /* save new fpscr value */
282 blr
283
284_GLOBAL(kvm_cvt_df)
285 lfd 0,0(r5) /* load up fpscr value */
286 MTFSF_L(0)
287 lfd 0,0(r3)
288 stfs 0,0(r4)
289 mffs 0
290 stfd 0,0(r5) /* save new fpscr value */
291 blr
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 9b8683f39e05..72a4ad86ee91 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -36,11 +36,6 @@
36#define CREATE_TRACE_POINTS 36#define CREATE_TRACE_POINTS
37#include "trace.h" 37#include "trace.h"
38 38
39gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
40{
41 return gfn;
42}
43
44int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) 39int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
45{ 40{
46 return !(v->arch.msr & MSR_WE) || !!(v->arch.pending_exceptions); 41 return !(v->arch.msr & MSR_WE) || !!(v->arch.pending_exceptions);
@@ -287,7 +282,7 @@ static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
287static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu, 282static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
288 struct kvm_run *run) 283 struct kvm_run *run)
289{ 284{
290 u64 gpr; 285 u64 uninitialized_var(gpr);
291 286
292 if (run->mmio.len > sizeof(gpr)) { 287 if (run->mmio.len > sizeof(gpr)) {
293 printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len); 288 printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len);
@@ -423,8 +418,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
423 int r; 418 int r;
424 sigset_t sigsaved; 419 sigset_t sigsaved;
425 420
426 vcpu_load(vcpu);
427
428 if (vcpu->sigset_active) 421 if (vcpu->sigset_active)
429 sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); 422 sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
430 423
@@ -456,8 +449,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
456 if (vcpu->sigset_active) 449 if (vcpu->sigset_active)
457 sigprocmask(SIG_SETMASK, &sigsaved, NULL); 450 sigprocmask(SIG_SETMASK, &sigsaved, NULL);
458 451
459 vcpu_put(vcpu);
460
461 return r; 452 return r;
462} 453}
463 454
@@ -523,8 +514,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
523 if (copy_from_user(&irq, argp, sizeof(irq))) 514 if (copy_from_user(&irq, argp, sizeof(irq)))
524 goto out; 515 goto out;
525 r = kvm_vcpu_ioctl_interrupt(vcpu, &irq); 516 r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
526 break; 517 goto out;
527 } 518 }
519
528 case KVM_ENABLE_CAP: 520 case KVM_ENABLE_CAP:
529 { 521 {
530 struct kvm_enable_cap cap; 522 struct kvm_enable_cap cap;
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-26 20:40:41 -0400