#include <linux/gfp.h>
#include <linux/sched.h>
#include <linux/vmalloc.h>
+#include <linux/highmem.h>
#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
/* #define EXIT_DEBUG_SIMPLE */
/* #define DEBUG_EXT */
-static void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
ulong msr);
+/* Some compatibility defines */
+#ifdef CONFIG_PPC_BOOK3S_32
+#define MSR_USER32 MSR_USER
+#define MSR_USER64 MSR_USER
+#define HW_PAGE_SIZE PAGE_SIZE
+#endif
+
struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "exits", VCPU_STAT(sum_exits) },
{ "mmio", VCPU_STAT(mmio_exits) },
void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
- memcpy(get_paca()->kvm_slb, to_book3s(vcpu)->slb_shadow, sizeof(get_paca()->kvm_slb));
- memcpy(&get_paca()->shadow_vcpu, &to_book3s(vcpu)->shadow_vcpu,
+#ifdef CONFIG_PPC_BOOK3S_64
+ memcpy(to_svcpu(vcpu)->slb, to_book3s(vcpu)->slb_shadow, sizeof(to_svcpu(vcpu)->slb));
+ memcpy(&get_paca()->shadow_vcpu, to_book3s(vcpu)->shadow_vcpu,
sizeof(get_paca()->shadow_vcpu));
- get_paca()->kvm_slb_max = to_book3s(vcpu)->slb_shadow_max;
+ to_svcpu(vcpu)->slb_max = to_book3s(vcpu)->slb_shadow_max;
+#endif
+
+#ifdef CONFIG_PPC_BOOK3S_32
+ current->thread.kvm_shadow_vcpu = to_book3s(vcpu)->shadow_vcpu;
+#endif
}
void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
{
- memcpy(to_book3s(vcpu)->slb_shadow, get_paca()->kvm_slb, sizeof(get_paca()->kvm_slb));
- memcpy(&to_book3s(vcpu)->shadow_vcpu, &get_paca()->shadow_vcpu,
+#ifdef CONFIG_PPC_BOOK3S_64
+ memcpy(to_book3s(vcpu)->slb_shadow, to_svcpu(vcpu)->slb, sizeof(to_svcpu(vcpu)->slb));
+ memcpy(to_book3s(vcpu)->shadow_vcpu, &get_paca()->shadow_vcpu,
sizeof(get_paca()->shadow_vcpu));
- to_book3s(vcpu)->slb_shadow_max = get_paca()->kvm_slb_max;
+ to_book3s(vcpu)->slb_shadow_max = to_svcpu(vcpu)->slb_max;
+#endif
kvmppc_giveup_ext(vcpu, MSR_FP);
kvmppc_giveup_ext(vcpu, MSR_VEC);
}
}
- if (((vcpu->arch.msr & (MSR_IR|MSR_DR)) != (old_msr & (MSR_IR|MSR_DR))) ||
- (vcpu->arch.msr & MSR_PR) != (old_msr & MSR_PR)) {
+ if ((vcpu->arch.msr & (MSR_PR|MSR_IR|MSR_DR)) !=
+ (old_msr & (MSR_PR|MSR_IR|MSR_DR))) {
kvmppc_mmu_flush_segments(vcpu);
- kvmppc_mmu_map_segment(vcpu, vcpu->arch.pc);
+ kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
}
+
+ /* Preload FPU if it's enabled */
+ if (vcpu->arch.msr & MSR_FP)
+ kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
}
void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
{
- vcpu->arch.srr0 = vcpu->arch.pc;
+ vcpu->arch.srr0 = kvmppc_get_pc(vcpu);
vcpu->arch.srr1 = vcpu->arch.msr | flags;
- vcpu->arch.pc = to_book3s(vcpu)->hior + vec;
+ kvmppc_set_pc(vcpu, to_book3s(vcpu)->hior + vec);
vcpu->arch.mmu.reset_msr(vcpu);
}
kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
}
+void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
+ struct kvm_interrupt *irq)
+{
+ kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
+}
+
int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu, unsigned int priority)
{
int deliver = 1;
printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions);
#endif
priority = __ffs(*pending);
- while (priority <= (sizeof(unsigned int) * 8)) {
+ while (priority < BOOK3S_IRQPRIO_MAX) {
if (kvmppc_book3s_irqprio_deliver(vcpu, priority) &&
(priority != BOOK3S_IRQPRIO_DECREMENTER)) {
/* DEC interrupts get cleared by mtdec */
{
vcpu->arch.hflags &= ~BOOK3S_HFLAG_SLB;
vcpu->arch.pvr = pvr;
+#ifdef CONFIG_PPC_BOOK3S_64
if ((pvr >= 0x330000) && (pvr < 0x70330000)) {
kvmppc_mmu_book3s_64_init(vcpu);
to_book3s(vcpu)->hior = 0xfff00000;
to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL;
- } else {
+ } else
+#endif
+ {
kvmppc_mmu_book3s_32_init(vcpu);
to_book3s(vcpu)->hior = 0;
to_book3s(vcpu)->msr_mask = 0xffffffffULL;
!strcmp(cur_cpu_spec->platform, "ppc970"))
vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
+ /* Cell performs badly if MSR_FEx are set. So let's hope nobody
+ really needs them in a VM on Cell and force disable them. */
+ if (!strcmp(cur_cpu_spec->platform, "ppc-cell-be"))
+ to_book3s(vcpu)->msr_mask &= ~(MSR_FE0 | MSR_FE1);
+
+#ifdef CONFIG_PPC_BOOK3S_32
+ /* 32 bit Book3S always has 32 byte dcbz */
+ vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
+#endif
}
/* Book3s_32 CPUs always have 32 bytes cache line size, which Linux assumes. To
*/
static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
{
- bool touched = false;
- hva_t hpage;
+ struct page *hpage;
+ u64 hpage_offset;
u32 *page;
int i;
- hpage = gfn_to_hva(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
- if (kvm_is_error_hva(hpage))
+ hpage = gfn_to_page(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
+ if (is_error_page(hpage))
return;
- hpage |= pte->raddr & ~PAGE_MASK;
- hpage &= ~0xFFFULL;
-
- page = vmalloc(HW_PAGE_SIZE);
-
- if (copy_from_user(page, (void __user *)hpage, HW_PAGE_SIZE))
- goto out;
+ hpage_offset = pte->raddr & ~PAGE_MASK;
+ hpage_offset &= ~0xFFFULL;
+ hpage_offset /= 4;
- for (i=0; i < HW_PAGE_SIZE / 4; i++)
- if ((page[i] & 0xff0007ff) == INS_DCBZ) {
- page[i] &= 0xfffffff7; // reserved instruction, so we trap
- touched = true;
- }
+ get_page(hpage);
+ page = kmap_atomic(hpage, KM_USER0);
- if (touched)
- copy_to_user((void __user *)hpage, page, HW_PAGE_SIZE);
+ /* patch dcbz into reserved instruction, so we trap */
+ for (i=hpage_offset; i < hpage_offset + (HW_PAGE_SIZE / 4); i++)
+ if ((page[i] & 0xff0007ff) == INS_DCBZ)
+ page[i] &= 0xfffffff7;
-out:
- vfree(page);
+ kunmap_atomic(page, KM_USER0);
+ put_page(hpage);
}
static int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, bool data,
} else {
pte->eaddr = eaddr;
pte->raddr = eaddr & 0xffffffff;
- pte->vpage = eaddr >> 12;
- switch (vcpu->arch.msr & (MSR_DR|MSR_IR)) {
- case 0:
- pte->vpage |= VSID_REAL;
- case MSR_DR:
- pte->vpage |= VSID_REAL_DR;
- case MSR_IR:
- pte->vpage |= VSID_REAL_IR;
- }
+ pte->vpage = VSID_REAL | eaddr >> 12;
pte->may_read = true;
pte->may_write = true;
pte->may_execute = true;
return kvmppc_bad_hva();
}
-int kvmppc_st(struct kvm_vcpu *vcpu, ulong eaddr, int size, void *ptr)
+int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
+ bool data)
{
struct kvmppc_pte pte;
- hva_t hva = eaddr;
vcpu->stat.st++;
- if (kvmppc_xlate(vcpu, eaddr, false, &pte))
- goto err;
+ if (kvmppc_xlate(vcpu, *eaddr, data, &pte))
+ return -ENOENT;
- hva = kvmppc_pte_to_hva(vcpu, &pte, false);
- if (kvm_is_error_hva(hva))
- goto err;
+ *eaddr = pte.raddr;
- if (copy_to_user((void __user *)hva, ptr, size)) {
- printk(KERN_INFO "kvmppc_st at 0x%lx failed\n", hva);
- goto err;
- }
+ if (!pte.may_write)
+ return -EPERM;
- return 0;
+ if (kvm_write_guest(vcpu->kvm, pte.raddr, ptr, size))
+ return EMULATE_DO_MMIO;
-err:
- return -ENOENT;
+ return EMULATE_DONE;
}
-int kvmppc_ld(struct kvm_vcpu *vcpu, ulong eaddr, int size, void *ptr,
+int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
bool data)
{
struct kvmppc_pte pte;
- hva_t hva = eaddr;
+ hva_t hva = *eaddr;
vcpu->stat.ld++;
- if (kvmppc_xlate(vcpu, eaddr, data, &pte))
- goto err;
+ if (kvmppc_xlate(vcpu, *eaddr, data, &pte))
+ goto nopte;
+
+ *eaddr = pte.raddr;
hva = kvmppc_pte_to_hva(vcpu, &pte, true);
if (kvm_is_error_hva(hva))
- goto err;
+ goto mmio;
if (copy_from_user(ptr, (void __user *)hva, size)) {
printk(KERN_INFO "kvmppc_ld at 0x%lx failed\n", hva);
- goto err;
+ goto mmio;
}
- return 0;
+ return EMULATE_DONE;
-err:
+nopte:
return -ENOENT;
+mmio:
+ return EMULATE_DO_MMIO;
}
static int kvmppc_visible_gfn(struct kvm_vcpu *vcpu, gfn_t gfn)
int page_found = 0;
struct kvmppc_pte pte;
bool is_mmio = false;
+ bool dr = (vcpu->arch.msr & MSR_DR) ? true : false;
+ bool ir = (vcpu->arch.msr & MSR_IR) ? true : false;
+ u64 vsid;
- if ( vec == BOOK3S_INTERRUPT_DATA_STORAGE ) {
- relocated = (vcpu->arch.msr & MSR_DR);
- } else {
- relocated = (vcpu->arch.msr & MSR_IR);
- }
+ relocated = data ? dr : ir;
/* Resolve real address if translation turned on */
if (relocated) {
pte.raddr = eaddr & 0xffffffff;
pte.eaddr = eaddr;
pte.vpage = eaddr >> 12;
- switch (vcpu->arch.msr & (MSR_DR|MSR_IR)) {
- case 0:
- pte.vpage |= VSID_REAL;
- case MSR_DR:
- pte.vpage |= VSID_REAL_DR;
- case MSR_IR:
- pte.vpage |= VSID_REAL_IR;
- }
+ }
+
+ switch (vcpu->arch.msr & (MSR_DR|MSR_IR)) {
+ case 0:
+ pte.vpage |= ((u64)VSID_REAL << (SID_SHIFT - 12));
+ break;
+ case MSR_DR:
+ case MSR_IR:
+ vcpu->arch.mmu.esid_to_vsid(vcpu, eaddr >> SID_SHIFT, &vsid);
+
+ if ((vcpu->arch.msr & (MSR_DR|MSR_IR)) == MSR_DR)
+ pte.vpage |= ((u64)VSID_REAL_DR << (SID_SHIFT - 12));
+ else
+ pte.vpage |= ((u64)VSID_REAL_IR << (SID_SHIFT - 12));
+ pte.vpage |= vsid;
+
+ if (vsid == -1)
+ page_found = -EINVAL;
+ break;
}
if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
if (page_found == -ENOENT) {
/* Page not found in guest PTE entries */
- vcpu->arch.dear = vcpu->arch.fault_dear;
- to_book3s(vcpu)->dsisr = vcpu->arch.fault_dsisr;
- vcpu->arch.msr |= (vcpu->arch.shadow_srr1 & 0x00000000f8000000ULL);
+ vcpu->arch.dear = kvmppc_get_fault_dar(vcpu);
+ to_book3s(vcpu)->dsisr = to_svcpu(vcpu)->fault_dsisr;
+ vcpu->arch.msr |= (to_svcpu(vcpu)->shadow_srr1 & 0x00000000f8000000ULL);
kvmppc_book3s_queue_irqprio(vcpu, vec);
} else if (page_found == -EPERM) {
/* Storage protection */
- vcpu->arch.dear = vcpu->arch.fault_dear;
- to_book3s(vcpu)->dsisr = vcpu->arch.fault_dsisr & ~DSISR_NOHPTE;
+ vcpu->arch.dear = kvmppc_get_fault_dar(vcpu);
+ to_book3s(vcpu)->dsisr = to_svcpu(vcpu)->fault_dsisr & ~DSISR_NOHPTE;
to_book3s(vcpu)->dsisr |= DSISR_PROTFAULT;
- vcpu->arch.msr |= (vcpu->arch.shadow_srr1 & 0x00000000f8000000ULL);
+ vcpu->arch.msr |= (to_svcpu(vcpu)->shadow_srr1 & 0x00000000f8000000ULL);
kvmppc_book3s_queue_irqprio(vcpu, vec);
} else if (page_found == -EINVAL) {
/* Page not found in guest SLB */
- vcpu->arch.dear = vcpu->arch.fault_dear;
+ vcpu->arch.dear = kvmppc_get_fault_dar(vcpu);
kvmppc_book3s_queue_irqprio(vcpu, vec + 0x80);
} else if (!is_mmio &&
kvmppc_visible_gfn(vcpu, pte.raddr >> PAGE_SHIFT)) {
}
/* Give up external provider (FPU, Altivec, VSX) */
-static void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
+void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
{
struct thread_struct *t = ¤t->thread;
u64 *vcpu_fpr = vcpu->arch.fpr;
+#ifdef CONFIG_VSX
u64 *vcpu_vsx = vcpu->arch.vsr;
+#endif
u64 *thread_fpr = (u64*)t->fpr;
int i;
kvmppc_recalc_shadow_msr(vcpu);
}
-static int kvmppc_check_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr)
+static int kvmppc_read_inst(struct kvm_vcpu *vcpu)
{
- ulong srr0 = vcpu->arch.pc;
+ ulong srr0 = kvmppc_get_pc(vcpu);
+ u32 last_inst = kvmppc_get_last_inst(vcpu);
int ret;
- /* Need to do paired single emulation? */
- if (!(vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE))
- return EMULATE_DONE;
-
- /* Read out the instruction */
- ret = kvmppc_ld(vcpu, &srr0, sizeof(u32), &vcpu->arch.last_inst, false);
+ ret = kvmppc_ld(vcpu, &srr0, sizeof(u32), &last_inst, false);
if (ret == -ENOENT) {
vcpu->arch.msr = kvmppc_set_field(vcpu->arch.msr, 33, 33, 1);
vcpu->arch.msr = kvmppc_set_field(vcpu->arch.msr, 34, 36, 0);
vcpu->arch.msr = kvmppc_set_field(vcpu->arch.msr, 42, 47, 0);
kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_INST_STORAGE);
- } else if(ret == EMULATE_DONE) {
+ return EMULATE_AGAIN;
+ }
+
+ return EMULATE_DONE;
+}
+
+static int kvmppc_check_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr)
+{
+
+ /* Need to do paired single emulation? */
+ if (!(vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE))
+ return EMULATE_DONE;
+
+ /* Read out the instruction */
+ if (kvmppc_read_inst(vcpu) == EMULATE_DONE)
/* Need to emulate */
return EMULATE_FAIL;
- }
return EMULATE_AGAIN;
}
{
struct thread_struct *t = ¤t->thread;
u64 *vcpu_fpr = vcpu->arch.fpr;
+#ifdef CONFIG_VSX
u64 *vcpu_vsx = vcpu->arch.vsr;
+#endif
u64 *thread_fpr = (u64*)t->fpr;
int i;
return RESUME_GUEST;
}
+ /* We already own the ext */
+ if (vcpu->arch.guest_owned_ext & msr) {
+ return RESUME_GUEST;
+ }
+
#ifdef DEBUG_EXT
printk(KERN_INFO "Loading up ext 0x%lx\n", msr);
#endif
run->ready_for_interrupt_injection = 1;
#ifdef EXIT_DEBUG
printk(KERN_EMERG "exit_nr=0x%x | pc=0x%lx | dar=0x%lx | dec=0x%x | msr=0x%lx\n",
- exit_nr, vcpu->arch.pc, vcpu->arch.fault_dear,
- kvmppc_get_dec(vcpu), vcpu->arch.msr);
+ exit_nr, kvmppc_get_pc(vcpu), kvmppc_get_fault_dar(vcpu),
+ kvmppc_get_dec(vcpu), to_svcpu(vcpu)->shadow_srr1);
#elif defined (EXIT_DEBUG_SIMPLE)
if ((exit_nr != 0x900) && (exit_nr != 0x500))
printk(KERN_EMERG "exit_nr=0x%x | pc=0x%lx | dar=0x%lx | msr=0x%lx\n",
- exit_nr, vcpu->arch.pc, vcpu->arch.fault_dear,
+ exit_nr, kvmppc_get_pc(vcpu), kvmppc_get_fault_dar(vcpu),
vcpu->arch.msr);
#endif
kvm_resched(vcpu);
switch (exit_nr) {
case BOOK3S_INTERRUPT_INST_STORAGE:
vcpu->stat.pf_instruc++;
+
+#ifdef CONFIG_PPC_BOOK3S_32
+ /* We set segments as unused segments when invalidating them. So
+ * treat the respective fault as segment fault. */
+ if (to_svcpu(vcpu)->sr[kvmppc_get_pc(vcpu) >> SID_SHIFT]
+ == SR_INVALID) {
+ kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
+ r = RESUME_GUEST;
+ break;
+ }
+#endif
+
/* only care about PTEG not found errors, but leave NX alone */
- if (vcpu->arch.shadow_srr1 & 0x40000000) {
- r = kvmppc_handle_pagefault(run, vcpu, vcpu->arch.pc, exit_nr);
+ if (to_svcpu(vcpu)->shadow_srr1 & 0x40000000) {
+ r = kvmppc_handle_pagefault(run, vcpu, kvmppc_get_pc(vcpu), exit_nr);
vcpu->stat.sp_instruc++;
} else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
(!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32))) {
* so we can't use the NX bit inside the guest. Let's cross our fingers,
* that no guest that needs the dcbz hack does NX.
*/
- kvmppc_mmu_pte_flush(vcpu, vcpu->arch.pc, ~0xFFFULL);
+ kvmppc_mmu_pte_flush(vcpu, kvmppc_get_pc(vcpu), ~0xFFFUL);
+ r = RESUME_GUEST;
} else {
- vcpu->arch.msr |= vcpu->arch.shadow_srr1 & 0x58000000;
+ vcpu->arch.msr |= to_svcpu(vcpu)->shadow_srr1 & 0x58000000;
kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
- kvmppc_mmu_pte_flush(vcpu, vcpu->arch.pc, ~0xFFFULL);
+ kvmppc_mmu_pte_flush(vcpu, kvmppc_get_pc(vcpu), ~0xFFFUL);
r = RESUME_GUEST;
}
break;
case BOOK3S_INTERRUPT_DATA_STORAGE:
+ {
+ ulong dar = kvmppc_get_fault_dar(vcpu);
vcpu->stat.pf_storage++;
+
+#ifdef CONFIG_PPC_BOOK3S_32
+ /* We set segments as unused segments when invalidating them. So
+ * treat the respective fault as segment fault. */
+ if ((to_svcpu(vcpu)->sr[dar >> SID_SHIFT]) == SR_INVALID) {
+ kvmppc_mmu_map_segment(vcpu, dar);
+ r = RESUME_GUEST;
+ break;
+ }
+#endif
+
/* The only case we need to handle is missing shadow PTEs */
- if (vcpu->arch.fault_dsisr & DSISR_NOHPTE) {
- r = kvmppc_handle_pagefault(run, vcpu, vcpu->arch.fault_dear, exit_nr);
+ if (to_svcpu(vcpu)->fault_dsisr & DSISR_NOHPTE) {
+ r = kvmppc_handle_pagefault(run, vcpu, dar, exit_nr);
} else {
- vcpu->arch.dear = vcpu->arch.fault_dear;
- to_book3s(vcpu)->dsisr = vcpu->arch.fault_dsisr;
+ vcpu->arch.dear = dar;
+ to_book3s(vcpu)->dsisr = to_svcpu(vcpu)->fault_dsisr;
kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
- kvmppc_mmu_pte_flush(vcpu, vcpu->arch.dear, ~0xFFFULL);
+ kvmppc_mmu_pte_flush(vcpu, vcpu->arch.dear, ~0xFFFUL);
r = RESUME_GUEST;
}
break;
+ }
case BOOK3S_INTERRUPT_DATA_SEGMENT:
- if (kvmppc_mmu_map_segment(vcpu, vcpu->arch.fault_dear) < 0) {
- vcpu->arch.dear = vcpu->arch.fault_dear;
+ if (kvmppc_mmu_map_segment(vcpu, kvmppc_get_fault_dar(vcpu)) < 0) {
+ vcpu->arch.dear = kvmppc_get_fault_dar(vcpu);
kvmppc_book3s_queue_irqprio(vcpu,
BOOK3S_INTERRUPT_DATA_SEGMENT);
}
r = RESUME_GUEST;
break;
case BOOK3S_INTERRUPT_INST_SEGMENT:
- if (kvmppc_mmu_map_segment(vcpu, vcpu->arch.pc) < 0) {
+ if (kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu)) < 0) {
kvmppc_book3s_queue_irqprio(vcpu,
BOOK3S_INTERRUPT_INST_SEGMENT);
}
vcpu->stat.ext_intr_exits++;
r = RESUME_GUEST;
break;
+ case BOOK3S_INTERRUPT_PERFMON:
+ r = RESUME_GUEST;
+ break;
case BOOK3S_INTERRUPT_PROGRAM:
{
enum emulation_result er;
ulong flags;
program_interrupt:
- flags = vcpu->arch.shadow_srr1 & 0x1f0000ull;
+ flags = to_svcpu(vcpu)->shadow_srr1 & 0x1f0000ull;
if (vcpu->arch.msr & MSR_PR) {
#ifdef EXIT_DEBUG
- printk(KERN_INFO "Userspace triggered 0x700 exception at 0x%lx (0x%x)\n", vcpu->arch.pc, vcpu->arch.last_inst);
+ printk(KERN_INFO "Userspace triggered 0x700 exception at 0x%lx (0x%x)\n", kvmppc_get_pc(vcpu), kvmppc_get_last_inst(vcpu));
#endif
- if ((vcpu->arch.last_inst & 0xff0007ff) !=
+ if ((kvmppc_get_last_inst(vcpu) & 0xff0007ff) !=
(INS_DCBZ & 0xfffffff7)) {
kvmppc_core_queue_program(vcpu, flags);
r = RESUME_GUEST;
break;
case EMULATE_FAIL:
printk(KERN_CRIT "%s: emulation at %lx failed (%08x)\n",
- __func__, vcpu->arch.pc, vcpu->arch.last_inst);
+ __func__, kvmppc_get_pc(vcpu), kvmppc_get_last_inst(vcpu));
kvmppc_core_queue_program(vcpu, flags);
r = RESUME_GUEST;
break;
+ case EMULATE_DO_MMIO:
+ run->exit_reason = KVM_EXIT_MMIO;
+ r = RESUME_HOST_NV;
+ break;
default:
BUG();
}
break;
}
case BOOK3S_INTERRUPT_SYSCALL:
-#ifdef EXIT_DEBUG
- printk(KERN_INFO "Syscall Nr %d\n", (int)kvmppc_get_gpr(vcpu, 0));
-#endif
- vcpu->stat.syscall_exits++;
- kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
- r = RESUME_GUEST;
+ // XXX make user settable
+ if (vcpu->arch.osi_enabled &&
+ (((u32)kvmppc_get_gpr(vcpu, 3)) == OSI_SC_MAGIC_R3) &&
+ (((u32)kvmppc_get_gpr(vcpu, 4)) == OSI_SC_MAGIC_R4)) {
+ u64 *gprs = run->osi.gprs;
+ int i;
+
+ run->exit_reason = KVM_EXIT_OSI;
+ for (i = 0; i < 32; i++)
+ gprs[i] = kvmppc_get_gpr(vcpu, i);
+ vcpu->arch.osi_needed = 1;
+ r = RESUME_HOST_NV;
+
+ } else {
+ vcpu->stat.syscall_exits++;
+ kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
+ r = RESUME_GUEST;
+ }
break;
case BOOK3S_INTERRUPT_FP_UNAVAIL:
case BOOK3S_INTERRUPT_ALTIVEC:
}
break;
}
+ case BOOK3S_INTERRUPT_ALIGNMENT:
+ if (kvmppc_read_inst(vcpu) == EMULATE_DONE) {
+ to_book3s(vcpu)->dsisr = kvmppc_alignment_dsisr(vcpu,
+ kvmppc_get_last_inst(vcpu));
+ vcpu->arch.dear = kvmppc_alignment_dar(vcpu,
+ kvmppc_get_last_inst(vcpu));
+ kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
+ }
+ r = RESUME_GUEST;
+ break;
case BOOK3S_INTERRUPT_MACHINE_CHECK:
case BOOK3S_INTERRUPT_TRACE:
kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
default:
/* Ugh - bork here! What did we get? */
printk(KERN_EMERG "exit_nr=0x%x | pc=0x%lx | msr=0x%lx\n",
- exit_nr, vcpu->arch.pc, vcpu->arch.shadow_srr1);
+ exit_nr, kvmppc_get_pc(vcpu), to_svcpu(vcpu)->shadow_srr1);
r = RESUME_HOST;
BUG();
break;
}
#ifdef EXIT_DEBUG
- printk(KERN_EMERG "KVM exit: vcpu=0x%p pc=0x%lx r=0x%x\n", vcpu, vcpu->arch.pc, r);
+ printk(KERN_EMERG "KVM exit: vcpu=0x%p pc=0x%lx r=0x%x\n", vcpu, kvmppc_get_pc(vcpu), r);
#endif
return r;
{
int i;
- regs->pc = vcpu->arch.pc;
+ vcpu_load(vcpu);
+
+ regs->pc = kvmppc_get_pc(vcpu);
regs->cr = kvmppc_get_cr(vcpu);
- regs->ctr = vcpu->arch.ctr;
- regs->lr = vcpu->arch.lr;
+ regs->ctr = kvmppc_get_ctr(vcpu);
+ regs->lr = kvmppc_get_lr(vcpu);
regs->xer = kvmppc_get_xer(vcpu);
regs->msr = vcpu->arch.msr;
regs->srr0 = vcpu->arch.srr0;
for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
+ vcpu_put(vcpu);
+
return 0;
}
{
int i;
- vcpu->arch.pc = regs->pc;
+ vcpu_load(vcpu);
+
+ kvmppc_set_pc(vcpu, regs->pc);
kvmppc_set_cr(vcpu, regs->cr);
- vcpu->arch.ctr = regs->ctr;
- vcpu->arch.lr = regs->lr;
+ kvmppc_set_ctr(vcpu, regs->ctr);
+ kvmppc_set_lr(vcpu, regs->lr);
kvmppc_set_xer(vcpu, regs->xer);
kvmppc_set_msr(vcpu, regs->msr);
vcpu->arch.srr0 = regs->srr0;
for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
+ vcpu_put(vcpu);
+
return 0;
}
{
struct kvmppc_vcpu_book3s *vcpu_book3s;
struct kvm_vcpu *vcpu;
- int err;
+ int err = -ENOMEM;
- vcpu_book3s = (struct kvmppc_vcpu_book3s *)__get_free_pages( GFP_KERNEL | __GFP_ZERO,
- get_order(sizeof(struct kvmppc_vcpu_book3s)));
- if (!vcpu_book3s) {
- err = -ENOMEM;
+ vcpu_book3s = vmalloc(sizeof(struct kvmppc_vcpu_book3s));
+ if (!vcpu_book3s)
goto out;
- }
+
+ memset(vcpu_book3s, 0, sizeof(struct kvmppc_vcpu_book3s));
+
+ vcpu_book3s->shadow_vcpu = (struct kvmppc_book3s_shadow_vcpu *)
+ kzalloc(sizeof(*vcpu_book3s->shadow_vcpu), GFP_KERNEL);
+ if (!vcpu_book3s->shadow_vcpu)
+ goto free_vcpu;
vcpu = &vcpu_book3s->vcpu;
err = kvm_vcpu_init(vcpu, kvm, id);
if (err)
- goto free_vcpu;
+ goto free_shadow_vcpu;
vcpu->arch.host_retip = kvm_return_point;
vcpu->arch.host_msr = mfmsr();
+#ifdef CONFIG_PPC_BOOK3S_64
/* default to book3s_64 (970fx) */
vcpu->arch.pvr = 0x3C0301;
+#else
+ /* default to book3s_32 (750) */
+ vcpu->arch.pvr = 0x84202;
+#endif
kvmppc_set_pvr(vcpu, vcpu->arch.pvr);
vcpu_book3s->slb_nr = 64;
vcpu->arch.trampoline_lowmem = kvmppc_trampoline_lowmem;
vcpu->arch.trampoline_enter = kvmppc_trampoline_enter;
vcpu->arch.highmem_handler = (ulong)kvmppc_handler_highmem;
+#ifdef CONFIG_PPC_BOOK3S_64
vcpu->arch.rmcall = *(ulong*)kvmppc_rmcall;
+#else
+ vcpu->arch.rmcall = (ulong)kvmppc_rmcall;
+#endif
vcpu->arch.shadow_msr = MSR_USER64;
- err = __init_new_context();
+ err = kvmppc_mmu_init(vcpu);
if (err < 0)
- goto free_vcpu;
- vcpu_book3s->context_id = err;
-
- vcpu_book3s->vsid_max = ((vcpu_book3s->context_id + 1) << USER_ESID_BITS) - 1;
- vcpu_book3s->vsid_first = vcpu_book3s->context_id << USER_ESID_BITS;
- vcpu_book3s->vsid_next = vcpu_book3s->vsid_first;
+ goto free_shadow_vcpu;
return vcpu;
+free_shadow_vcpu:
+ kfree(vcpu_book3s->shadow_vcpu);
free_vcpu:
- free_pages((long)vcpu_book3s, get_order(sizeof(struct kvmppc_vcpu_book3s)));
+ vfree(vcpu_book3s);
out:
return ERR_PTR(err);
}
{
struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
- __destroy_context(vcpu_book3s->context_id);
kvm_vcpu_uninit(vcpu);
- free_pages((long)vcpu_book3s, get_order(sizeof(struct kvmppc_vcpu_book3s)));
+ kfree(vcpu_book3s->shadow_vcpu);
+ vfree(vcpu_book3s);
}
extern int __kvmppc_vcpu_entry(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
{
int ret;
struct thread_struct ext_bkp;
+#ifdef CONFIG_ALTIVEC
bool save_vec = current->thread.used_vr;
+#endif
+#ifdef CONFIG_VSX
bool save_vsx = current->thread.used_vsr;
+#endif
ulong ext_msr;
/* No need to go into the guest when all we do is going out */
/* XXX we get called with irq disabled - change that! */
local_irq_enable();
+ /* Preload FPU if it's enabled */
+ if (vcpu->arch.msr & MSR_FP)
+ kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
+
ret = __kvmppc_vcpu_entry(kvm_run, vcpu);
local_irq_disable();
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff