--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/target-ppc/kvm.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,204 @@
+/*
+ * PowerPC implementation of KVM hooks
+ *
+ * Copyright IBM Corp. 2007
+ *
+ * Authors:
+ *  Jerone Young <jyoung5@us.ibm.com>
+ *  Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
+ *  Hollis Blanchard <hollisb@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+
+#include <linux/kvm.h>
+
+#include "qemu-common.h"
+#include "qemu-timer.h"
+#include "sysemu.h"
+#include "kvm.h"
+#include "kvm_ppc.h"
+#include "cpu.h"
+#include "device_tree.h"
+
+//#define DEBUG_KVM
+
+#ifdef DEBUG_KVM
+#define dprintf(fmt, ...) \
+    do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
+#else
+#define dprintf(fmt, ...) \
+    do { } while (0)
+#endif
+
+int kvm_arch_init(KVMState *s, int smp_cpus)
+{
+    return 0;
+}
+
+int kvm_arch_init_vcpu(CPUState *cenv)
+{
+    return 0;
+}
+
+int kvm_arch_put_registers(CPUState *env)
+{
+    struct kvm_regs regs;
+    int ret;
+    int i;
+
+    ret = kvm_vcpu_ioctl(env, KVM_GET_REGS, &regs);
+    if (ret < 0)
+        return ret;
+
+    regs.ctr = env->ctr;
+    regs.lr  = env->lr;
+    regs.xer = env->xer;
+    regs.msr = env->msr;
+    regs.pc = env->nip;
+
+    regs.srr0 = env->spr[SPR_SRR0];
+    regs.srr1 = env->spr[SPR_SRR1];
+
+    regs.sprg0 = env->spr[SPR_SPRG0];
+    regs.sprg1 = env->spr[SPR_SPRG1];
+    regs.sprg2 = env->spr[SPR_SPRG2];
+    regs.sprg3 = env->spr[SPR_SPRG3];
+    regs.sprg4 = env->spr[SPR_SPRG4];
+    regs.sprg5 = env->spr[SPR_SPRG5];
+    regs.sprg6 = env->spr[SPR_SPRG6];
+    regs.sprg7 = env->spr[SPR_SPRG7];
+
+    for (i = 0;i < 32; i++)
+        regs.gpr[i] = env->gpr[i];
+
+    ret = kvm_vcpu_ioctl(env, KVM_SET_REGS, &regs);
+    if (ret < 0)
+        return ret;
+
+    return ret;
+}
+
+int kvm_arch_get_registers(CPUState *env)
+{
+    struct kvm_regs regs;
+    uint32_t i, ret;
+
+    ret = kvm_vcpu_ioctl(env, KVM_GET_REGS, &regs);
+    if (ret < 0)
+        return ret;
+
+    env->ctr = regs.ctr;
+    env->lr = regs.lr;
+    env->xer = regs.xer;
+    env->msr = regs.msr;
+    env->nip = regs.pc;
+
+    env->spr[SPR_SRR0] = regs.srr0;
+    env->spr[SPR_SRR1] = regs.srr1;
+
+    env->spr[SPR_SPRG0] = regs.sprg0;
+    env->spr[SPR_SPRG1] = regs.sprg1;
+    env->spr[SPR_SPRG2] = regs.sprg2;
+    env->spr[SPR_SPRG3] = regs.sprg3;
+    env->spr[SPR_SPRG4] = regs.sprg4;
+    env->spr[SPR_SPRG5] = regs.sprg5;
+    env->spr[SPR_SPRG6] = regs.sprg6;
+    env->spr[SPR_SPRG7] = regs.sprg7;
+
+    for (i = 0;i < 32; i++)
+        env->gpr[i] = regs.gpr[i];
+
+    return 0;
+}
+
+int kvm_arch_pre_run(CPUState *env, struct kvm_run *run)
+{
+    int r;
+    unsigned irq;
+
+    /* PowerPC Qemu tracks the various core input pins (interrupt, critical
+     * interrupt, reset, etc) in PPC-specific env->irq_input_state. */
+    if (run->ready_for_interrupt_injection &&
+        (env->interrupt_request & CPU_INTERRUPT_HARD) &&
+        (env->irq_input_state & (1<<PPC40x_INPUT_INT)))
+    {
+        /* For now KVM disregards the 'irq' argument. However, in the
+         * future KVM could cache it in-kernel to avoid a heavyweight exit
+         * when reading the UIC.
+         */
+        irq = -1U;
+
+        dprintf("injected interrupt %d\n", irq);
+        r = kvm_vcpu_ioctl(env, KVM_INTERRUPT, &irq);
+        if (r < 0)
+            printf("cpu %d fail inject %x\n", env->cpu_index, irq);
+    }
+
+    /* We don't know if there are more interrupts pending after this. However,
+     * the guest will return to userspace in the course of handling this one
+     * anyways, so we will get a chance to deliver the rest. */
+    return 0;
+}
+
+int kvm_arch_post_run(CPUState *env, struct kvm_run *run)
+{
+    return 0;
+}
+
+static int kvmppc_handle_halt(CPUState *env)
+{
+    if (!(env->interrupt_request & CPU_INTERRUPT_HARD) && (msr_ee)) {
+        env->halted = 1;
+        env->exception_index = EXCP_HLT;
+    }
+
+    return 1;
+}
+
+/* map dcr access to existing qemu dcr emulation */
+static int kvmppc_handle_dcr_read(CPUState *env, uint32_t dcrn, uint32_t *data)
+{
+    if (ppc_dcr_read(env->dcr_env, dcrn, data) < 0)
+        fprintf(stderr, "Read to unhandled DCR (0x%x)\n", dcrn);
+
+    return 1;
+}
+
+static int kvmppc_handle_dcr_write(CPUState *env, uint32_t dcrn, uint32_t data)
+{
+    if (ppc_dcr_write(env->dcr_env, dcrn, data) < 0)
+        fprintf(stderr, "Write to unhandled DCR (0x%x)\n", dcrn);
+
+    return 1;
+}
+
+int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run)
+{
+    int ret = 0;
+
+    switch (run->exit_reason) {
+    case KVM_EXIT_DCR:
+        if (run->dcr.is_write) {
+            dprintf("handle dcr write\n");
+            ret = kvmppc_handle_dcr_write(env, run->dcr.dcrn, run->dcr.data);
+        } else {
+            dprintf("handle dcr read\n");
+            ret = kvmppc_handle_dcr_read(env, run->dcr.dcrn, &run->dcr.data);
+        }
+        break;
+    case KVM_EXIT_HLT:
+        dprintf("handle halt\n");
+        ret = kvmppc_handle_halt(env);
+        break;
+    }
+
+    return ret;
+}
+