summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/arch/powerpc/kvm/book3s.c
diff options
context:
space:
mode:
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kvm/book3s.c')
-rw-r--r--ANDROID_3.4.5/arch/powerpc/kvm/book3s.c486
1 files changed, 0 insertions, 486 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kvm/book3s.c b/ANDROID_3.4.5/arch/powerpc/kvm/book3s.c
deleted file mode 100644
index 7d54f4ed..00000000
--- a/ANDROID_3.4.5/arch/powerpc/kvm/book3s.c
+++ /dev/null
@@ -1,486 +0,0 @@
-/*
- * Copyright (C) 2009. SUSE Linux Products GmbH. All rights reserved.
- *
- * Authors:
- * Alexander Graf <agraf@suse.de>
- * Kevin Wolf <mail@kevin-wolf.de>
- *
- * Description:
- * This file is derived from arch/powerpc/kvm/44x.c,
- * by Hollis Blanchard <hollisb@us.ibm.com>.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kvm_host.h>
-#include <linux/err.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-
-#include <asm/reg.h>
-#include <asm/cputable.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/kvm_ppc.h>
-#include <asm/kvm_book3s.h>
-#include <asm/mmu_context.h>
-#include <asm/page.h>
-#include <linux/gfp.h>
-#include <linux/sched.h>
-#include <linux/vmalloc.h>
-#include <linux/highmem.h>
-
-#include "trace.h"
-
-#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
-
-/* #define EXIT_DEBUG */
-
-struct kvm_stats_debugfs_item debugfs_entries[] = {
- { "exits", VCPU_STAT(sum_exits) },
- { "mmio", VCPU_STAT(mmio_exits) },
- { "sig", VCPU_STAT(signal_exits) },
- { "sysc", VCPU_STAT(syscall_exits) },
- { "inst_emu", VCPU_STAT(emulated_inst_exits) },
- { "dec", VCPU_STAT(dec_exits) },
- { "ext_intr", VCPU_STAT(ext_intr_exits) },
- { "queue_intr", VCPU_STAT(queue_intr) },
- { "halt_wakeup", VCPU_STAT(halt_wakeup) },
- { "pf_storage", VCPU_STAT(pf_storage) },
- { "sp_storage", VCPU_STAT(sp_storage) },
- { "pf_instruc", VCPU_STAT(pf_instruc) },
- { "sp_instruc", VCPU_STAT(sp_instruc) },
- { "ld", VCPU_STAT(ld) },
- { "ld_slow", VCPU_STAT(ld_slow) },
- { "st", VCPU_STAT(st) },
- { "st_slow", VCPU_STAT(st_slow) },
- { NULL }
-};
-
-void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu)
-{
-}
-
-void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
-{
-}
-
-void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
-{
- vcpu->arch.shared->srr0 = kvmppc_get_pc(vcpu);
- vcpu->arch.shared->srr1 = vcpu->arch.shared->msr | flags;
- kvmppc_set_pc(vcpu, kvmppc_interrupt_offset(vcpu) + vec);
- vcpu->arch.mmu.reset_msr(vcpu);
-}
-
-static int kvmppc_book3s_vec2irqprio(unsigned int vec)
-{
- unsigned int prio;
-
- switch (vec) {
- case 0x100: prio = BOOK3S_IRQPRIO_SYSTEM_RESET; break;
- case 0x200: prio = BOOK3S_IRQPRIO_MACHINE_CHECK; break;
- case 0x300: prio = BOOK3S_IRQPRIO_DATA_STORAGE; break;
- case 0x380: prio = BOOK3S_IRQPRIO_DATA_SEGMENT; break;
- case 0x400: prio = BOOK3S_IRQPRIO_INST_STORAGE; break;
- case 0x480: prio = BOOK3S_IRQPRIO_INST_SEGMENT; break;
- case 0x500: prio = BOOK3S_IRQPRIO_EXTERNAL; break;
- case 0x501: prio = BOOK3S_IRQPRIO_EXTERNAL_LEVEL; break;
- case 0x600: prio = BOOK3S_IRQPRIO_ALIGNMENT; break;
- case 0x700: prio = BOOK3S_IRQPRIO_PROGRAM; break;
- case 0x800: prio = BOOK3S_IRQPRIO_FP_UNAVAIL; break;
- case 0x900: prio = BOOK3S_IRQPRIO_DECREMENTER; break;
- case 0xc00: prio = BOOK3S_IRQPRIO_SYSCALL; break;
- case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG; break;
- case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC; break;
- case 0xf40: prio = BOOK3S_IRQPRIO_VSX; break;
- default: prio = BOOK3S_IRQPRIO_MAX; break;
- }
-
- return prio;
-}
-
-static void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
- unsigned int vec)
-{
- unsigned long old_pending = vcpu->arch.pending_exceptions;
-
- clear_bit(kvmppc_book3s_vec2irqprio(vec),
- &vcpu->arch.pending_exceptions);
-
- kvmppc_update_int_pending(vcpu, vcpu->arch.pending_exceptions,
- old_pending);
-}
-
-void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
-{
- vcpu->stat.queue_intr++;
-
- set_bit(kvmppc_book3s_vec2irqprio(vec),
- &vcpu->arch.pending_exceptions);
-#ifdef EXIT_DEBUG
- printk(KERN_INFO "Queueing interrupt %x\n", vec);
-#endif
-}
-
-
-void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
-{
- /* might as well deliver this straight away */
- kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_PROGRAM, flags);
-}
-
-void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
-{
- kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
-}
-
-int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
-{
- return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
-}
-
-void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu)
-{
- kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
-}
-
-void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
- struct kvm_interrupt *irq)
-{
- unsigned int vec = BOOK3S_INTERRUPT_EXTERNAL;
-
- if (irq->irq == KVM_INTERRUPT_SET_LEVEL)
- vec = BOOK3S_INTERRUPT_EXTERNAL_LEVEL;
-
- kvmppc_book3s_queue_irqprio(vcpu, vec);
-}
-
-void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
- struct kvm_interrupt *irq)
-{
- kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
- kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL_LEVEL);
-}
-
-int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu, unsigned int priority)
-{
- int deliver = 1;
- int vec = 0;
- bool crit = kvmppc_critical_section(vcpu);
-
- switch (priority) {
- case BOOK3S_IRQPRIO_DECREMENTER:
- deliver = (vcpu->arch.shared->msr & MSR_EE) && !crit;
- vec = BOOK3S_INTERRUPT_DECREMENTER;
- break;
- case BOOK3S_IRQPRIO_EXTERNAL:
- case BOOK3S_IRQPRIO_EXTERNAL_LEVEL:
- deliver = (vcpu->arch.shared->msr & MSR_EE) && !crit;
- vec = BOOK3S_INTERRUPT_EXTERNAL;
- break;
- case BOOK3S_IRQPRIO_SYSTEM_RESET:
- vec = BOOK3S_INTERRUPT_SYSTEM_RESET;
- break;
- case BOOK3S_IRQPRIO_MACHINE_CHECK:
- vec = BOOK3S_INTERRUPT_MACHINE_CHECK;
- break;
- case BOOK3S_IRQPRIO_DATA_STORAGE:
- vec = BOOK3S_INTERRUPT_DATA_STORAGE;
- break;
- case BOOK3S_IRQPRIO_INST_STORAGE:
- vec = BOOK3S_INTERRUPT_INST_STORAGE;
- break;
- case BOOK3S_IRQPRIO_DATA_SEGMENT:
- vec = BOOK3S_INTERRUPT_DATA_SEGMENT;
- break;
- case BOOK3S_IRQPRIO_INST_SEGMENT:
- vec = BOOK3S_INTERRUPT_INST_SEGMENT;
- break;
- case BOOK3S_IRQPRIO_ALIGNMENT:
- vec = BOOK3S_INTERRUPT_ALIGNMENT;
- break;
- case BOOK3S_IRQPRIO_PROGRAM:
- vec = BOOK3S_INTERRUPT_PROGRAM;
- break;
- case BOOK3S_IRQPRIO_VSX:
- vec = BOOK3S_INTERRUPT_VSX;
- break;
- case BOOK3S_IRQPRIO_ALTIVEC:
- vec = BOOK3S_INTERRUPT_ALTIVEC;
- break;
- case BOOK3S_IRQPRIO_FP_UNAVAIL:
- vec = BOOK3S_INTERRUPT_FP_UNAVAIL;
- break;
- case BOOK3S_IRQPRIO_SYSCALL:
- vec = BOOK3S_INTERRUPT_SYSCALL;
- break;
- case BOOK3S_IRQPRIO_DEBUG:
- vec = BOOK3S_INTERRUPT_TRACE;
- break;
- case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR:
- vec = BOOK3S_INTERRUPT_PERFMON;
- break;
- default:
- deliver = 0;
- printk(KERN_ERR "KVM: Unknown interrupt: 0x%x\n", priority);
- break;
- }
-
-#if 0
- printk(KERN_INFO "Deliver interrupt 0x%x? %x\n", vec, deliver);
-#endif
-
- if (deliver)
- kvmppc_inject_interrupt(vcpu, vec, 0);
-
- return deliver;
-}
-
-/*
- * This function determines if an irqprio should be cleared once issued.
- */
-static bool clear_irqprio(struct kvm_vcpu *vcpu, unsigned int priority)
-{
- switch (priority) {
- case BOOK3S_IRQPRIO_DECREMENTER:
- /* DEC interrupts get cleared by mtdec */
- return false;
- case BOOK3S_IRQPRIO_EXTERNAL_LEVEL:
- /* External interrupts get cleared by userspace */
- return false;
- }
-
- return true;
-}
-
-void kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
-{
- unsigned long *pending = &vcpu->arch.pending_exceptions;
- unsigned long old_pending = vcpu->arch.pending_exceptions;
- unsigned int priority;
-
-#ifdef EXIT_DEBUG
- if (vcpu->arch.pending_exceptions)
- printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions);
-#endif
- priority = __ffs(*pending);
- while (priority < BOOK3S_IRQPRIO_MAX) {
- if (kvmppc_book3s_irqprio_deliver(vcpu, priority) &&
- clear_irqprio(vcpu, priority)) {
- clear_bit(priority, &vcpu->arch.pending_exceptions);
- break;
- }
-
- priority = find_next_bit(pending,
- BITS_PER_BYTE * sizeof(*pending),
- priority + 1);
- }
-
- /* Tell the guest about our interrupt status */
- kvmppc_update_int_pending(vcpu, *pending, old_pending);
-}
-
-pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn)
-{
- ulong mp_pa = vcpu->arch.magic_page_pa;
-
- /* Magic page override */
- if (unlikely(mp_pa) &&
- unlikely(((gfn << PAGE_SHIFT) & KVM_PAM) ==
- ((mp_pa & PAGE_MASK) & KVM_PAM))) {
- ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK;
- pfn_t pfn;
-
- pfn = (pfn_t)virt_to_phys((void*)shared_page) >> PAGE_SHIFT;
- get_page(pfn_to_page(pfn));
- return pfn;
- }
-
- return gfn_to_pfn(vcpu->kvm, gfn);
-}
-
-static int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, bool data,
- struct kvmppc_pte *pte)
-{
- int relocated = (vcpu->arch.shared->msr & (data ? MSR_DR : MSR_IR));
- int r;
-
- if (relocated) {
- r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data);
- } else {
- pte->eaddr = eaddr;
- pte->raddr = eaddr & KVM_PAM;
- pte->vpage = VSID_REAL | eaddr >> 12;
- pte->may_read = true;
- pte->may_write = true;
- pte->may_execute = true;
- r = 0;
- }
-
- return r;
-}
-
-static hva_t kvmppc_bad_hva(void)
-{
- return PAGE_OFFSET;
-}
-
-static hva_t kvmppc_pte_to_hva(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
- bool read)
-{
- hva_t hpage;
-
- if (read && !pte->may_read)
- goto err;
-
- if (!read && !pte->may_write)
- goto err;
-
- hpage = gfn_to_hva(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
- if (kvm_is_error_hva(hpage))
- goto err;
-
- return hpage | (pte->raddr & ~PAGE_MASK);
-err:
- return kvmppc_bad_hva();
-}
-
-int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
- bool data)
-{
- struct kvmppc_pte pte;
-
- vcpu->stat.st++;
-
- if (kvmppc_xlate(vcpu, *eaddr, data, &pte))
- return -ENOENT;
-
- *eaddr = pte.raddr;
-
- if (!pte.may_write)
- return -EPERM;
-
- if (kvm_write_guest(vcpu->kvm, pte.raddr, ptr, size))
- return EMULATE_DO_MMIO;
-
- return EMULATE_DONE;
-}
-
-int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
- bool data)
-{
- struct kvmppc_pte pte;
- hva_t hva = *eaddr;
-
- vcpu->stat.ld++;
-
- 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 mmio;
-
- if (copy_from_user(ptr, (void __user *)hva, size)) {
- printk(KERN_INFO "kvmppc_ld at 0x%lx failed\n", hva);
- goto mmio;
- }
-
- return EMULATE_DONE;
-
-nopte:
- return -ENOENT;
-mmio:
- return EMULATE_DO_MMIO;
-}
-
-int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
-{
- return 0;
-}
-
-int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
-{
- int i;
-
- regs->pc = kvmppc_get_pc(vcpu);
- regs->cr = kvmppc_get_cr(vcpu);
- regs->ctr = kvmppc_get_ctr(vcpu);
- regs->lr = kvmppc_get_lr(vcpu);
- regs->xer = kvmppc_get_xer(vcpu);
- regs->msr = vcpu->arch.shared->msr;
- regs->srr0 = vcpu->arch.shared->srr0;
- regs->srr1 = vcpu->arch.shared->srr1;
- regs->pid = vcpu->arch.pid;
- regs->sprg0 = vcpu->arch.shared->sprg0;
- regs->sprg1 = vcpu->arch.shared->sprg1;
- regs->sprg2 = vcpu->arch.shared->sprg2;
- regs->sprg3 = vcpu->arch.shared->sprg3;
- regs->sprg4 = vcpu->arch.shared->sprg4;
- regs->sprg5 = vcpu->arch.shared->sprg5;
- regs->sprg6 = vcpu->arch.shared->sprg6;
- regs->sprg7 = vcpu->arch.shared->sprg7;
-
- for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
- regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
-
- return 0;
-}
-
-int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
-{
- int i;
-
- kvmppc_set_pc(vcpu, regs->pc);
- kvmppc_set_cr(vcpu, regs->cr);
- 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.shared->srr0 = regs->srr0;
- vcpu->arch.shared->srr1 = regs->srr1;
- vcpu->arch.shared->sprg0 = regs->sprg0;
- vcpu->arch.shared->sprg1 = regs->sprg1;
- vcpu->arch.shared->sprg2 = regs->sprg2;
- vcpu->arch.shared->sprg3 = regs->sprg3;
- vcpu->arch.shared->sprg4 = regs->sprg4;
- vcpu->arch.shared->sprg5 = regs->sprg5;
- vcpu->arch.shared->sprg6 = regs->sprg6;
- vcpu->arch.shared->sprg7 = regs->sprg7;
-
- for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
- kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
-
- return 0;
-}
-
-int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
-{
- return -ENOTSUPP;
-}
-
-int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
-{
- return -ENOTSUPP;
-}
-
-int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
- struct kvm_translation *tr)
-{
- return 0;
-}
-
-void kvmppc_decrementer_func(unsigned long data)
-{
- struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
-
- kvmppc_core_queue_dec(vcpu);
- kvm_vcpu_kick(vcpu);
-}
generated by cgit (git 2.34.1) at 2025-01-25 20:32:28 +0000