KVMSlot slots[32];
int fd;
int vmfd;
+ int regs_modified;
int coalesced_mmio;
int broken_set_mem_region;
int migration_log;
+ int vcpu_events;
#ifdef KVM_CAP_SET_GUEST_DEBUG
struct kvm_sw_breakpoint_head kvm_sw_breakpoints;
#endif
{
CPUState *env = opaque;
+ kvm_arch_reset_vcpu(env);
if (kvm_arch_put_registers(env)) {
fprintf(stderr, "Fatal: kvm vcpu reset failed\n");
abort();
}
}
-static void on_vcpu(CPUState *env, void (*func)(void *data), void *data)
-{
- if (env == cpu_single_env) {
- func(data);
- return;
- }
- abort();
-}
-
int kvm_irqchip_in_kernel(void)
{
return kvm_state->irqchip_in_kernel;
ret = kvm_arch_init_vcpu(env);
if (ret == 0) {
qemu_register_reset(kvm_reset_vcpu, env);
+ kvm_arch_reset_vcpu(env);
ret = kvm_arch_put_registers(env);
}
err:
return ret;
}
-int kvm_put_mp_state(CPUState *env)
-{
- struct kvm_mp_state mp_state = { .mp_state = env->mp_state };
-
- return kvm_vcpu_ioctl(env, KVM_SET_MP_STATE, &mp_state);
-}
-
-int kvm_get_mp_state(CPUState *env)
-{
- struct kvm_mp_state mp_state;
- int ret;
-
- ret = kvm_vcpu_ioctl(env, KVM_GET_MP_STATE, &mp_state);
- if (ret < 0) {
- return ret;
- }
- env->mp_state = mp_state.mp_state;
- return 0;
-}
-
/*
* dirty pages logging control
*/
return 0;
}
+static int test_le_bit(unsigned long nr, unsigned char *addr)
+{
+ return (addr[nr >> 3] >> (nr & 7)) & 1;
+}
+
/**
* kvm_physical_sync_dirty_bitmap - Grab dirty bitmap from kernel space
* This function updates qemu's dirty bitmap using cpu_physical_memory_set_dirty().
KVMDirtyLog d;
KVMSlot *mem;
int ret = 0;
- int r;
d.dirty_bitmap = NULL;
while (start_addr < end_addr) {
break;
}
- /* We didn't activate dirty logging? Don't care then. */
- if(!(mem->flags & KVM_MEM_LOG_DIRTY_PAGES)) {
- continue;
- }
-
size = ((mem->memory_size >> TARGET_PAGE_BITS) + 7) / 8;
if (!d.dirty_bitmap) {
d.dirty_bitmap = qemu_malloc(size);
d.slot = mem->slot;
- r = kvm_vm_ioctl(s, KVM_GET_DIRTY_LOG, &d);
- if (r == -EINVAL) {
+ if (kvm_vm_ioctl(s, KVM_GET_DIRTY_LOG, &d) == -1) {
dprintf("ioctl failed %d\n", errno);
ret = -1;
break;
for (phys_addr = mem->start_addr, addr = mem->phys_offset;
phys_addr < mem->start_addr + mem->memory_size;
phys_addr += TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) {
- unsigned long *bitmap = (unsigned long *)d.dirty_bitmap;
+ unsigned char *bitmap = (unsigned char *)d.dirty_bitmap;
unsigned nr = (phys_addr - mem->start_addr) >> TARGET_PAGE_BITS;
- unsigned word = nr / (sizeof(*bitmap) * 8);
- unsigned bit = nr % (sizeof(*bitmap) * 8);
- if ((bitmap[word] >> bit) & 1) {
- cpu_physical_memory_set_dirty(addr);
- } else if (r < 0) {
- /* When our KVM implementation doesn't know about dirty logging
- * we can just assume it's always dirty and be fine. */
+ if (test_le_bit(nr, bitmap)) {
cpu_physical_memory_set_dirty(addr);
}
}
s = qemu_mallocz(sizeof(KVMState));
#ifdef KVM_CAP_SET_GUEST_DEBUG
- TAILQ_INIT(&s->kvm_sw_breakpoints);
+ QTAILQ_INIT(&s->kvm_sw_breakpoints);
#endif
for (i = 0; i < ARRAY_SIZE(s->slots); i++)
s->slots[i].slot = i;
s->vmfd = -1;
- s->fd = open("/dev/kvm", O_RDWR);
+ s->fd = qemu_open("/dev/kvm", O_RDWR);
if (s->fd == -1) {
fprintf(stderr, "Could not access KVM kernel module: %m\n");
ret = -errno;
}
#endif
+ s->vcpu_events = 0;
+#ifdef KVM_CAP_VCPU_EVENTS
+ s->vcpu_events = kvm_check_extension(s, KVM_CAP_VCPU_EVENTS);
+#endif
+
ret = kvm_arch_init(s, smp_cpus);
if (ret < 0)
goto err;
return ret;
}
-static int kvm_handle_io(CPUState *env, uint16_t port, void *data,
- int direction, int size, uint32_t count)
+static int kvm_handle_io(uint16_t port, void *data, int direction, int size,
+ uint32_t count)
{
int i;
uint8_t *ptr = data;
if (direction == KVM_EXIT_IO_IN) {
switch (size) {
case 1:
- stb_p(ptr, cpu_inb(env, port));
+ stb_p(ptr, cpu_inb(port));
break;
case 2:
- stw_p(ptr, cpu_inw(env, port));
+ stw_p(ptr, cpu_inw(port));
break;
case 4:
- stl_p(ptr, cpu_inl(env, port));
+ stl_p(ptr, cpu_inl(port));
break;
}
} else {
switch (size) {
case 1:
- cpu_outb(env, port, ldub_p(ptr));
+ cpu_outb(port, ldub_p(ptr));
break;
case 2:
- cpu_outw(env, port, lduw_p(ptr));
+ cpu_outw(port, lduw_p(ptr));
break;
case 4:
- cpu_outl(env, port, ldl_p(ptr));
+ cpu_outl(port, ldl_p(ptr));
break;
}
}
#endif
}
+void kvm_cpu_synchronize_state(CPUState *env)
+{
+ if (!env->kvm_state->regs_modified) {
+ kvm_arch_get_registers(env);
+ env->kvm_state->regs_modified = 1;
+ }
+}
+
int kvm_cpu_exec(CPUState *env)
{
struct kvm_run *run = env->kvm_run;
break;
}
+ if (env->kvm_state->regs_modified) {
+ kvm_arch_put_registers(env);
+ env->kvm_state->regs_modified = 0;
+ }
+
kvm_arch_pre_run(env, run);
+ qemu_mutex_unlock_iothread();
ret = kvm_vcpu_ioctl(env, KVM_RUN, 0);
+ qemu_mutex_lock_iothread();
kvm_arch_post_run(env, run);
if (ret == -EINTR || ret == -EAGAIN) {
switch (run->exit_reason) {
case KVM_EXIT_IO:
dprintf("handle_io\n");
- ret = kvm_handle_io(env, run->io.port,
+ ret = kvm_handle_io(run->io.port,
(uint8_t *)run + run->io.data_offset,
run->io.direction,
run->io.size,
#endif
}
+int kvm_has_vcpu_events(void)
+{
+ return kvm_state->vcpu_events;
+}
+
void kvm_setup_guest_memory(void *start, size_t size)
{
if (!kvm_has_sync_mmu()) {
}
#ifdef KVM_CAP_SET_GUEST_DEBUG
+static void on_vcpu(CPUState *env, void (*func)(void *data), void *data)
+{
+#ifdef CONFIG_IOTHREAD
+ if (env == cpu_single_env) {
+ func(data);
+ return;
+ }
+ abort();
+#else
+ func(data);
+#endif
+}
+
struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
target_ulong pc)
{
struct kvm_sw_breakpoint *bp;
- TAILQ_FOREACH(bp, &env->kvm_state->kvm_sw_breakpoints, entry) {
+ QTAILQ_FOREACH(bp, &env->kvm_state->kvm_sw_breakpoints, entry) {
if (bp->pc == pc)
return bp;
}
int kvm_sw_breakpoints_active(CPUState *env)
{
- return !TAILQ_EMPTY(&env->kvm_state->kvm_sw_breakpoints);
+ return !QTAILQ_EMPTY(&env->kvm_state->kvm_sw_breakpoints);
}
struct kvm_set_guest_debug_data {
static void kvm_invoke_set_guest_debug(void *data)
{
struct kvm_set_guest_debug_data *dbg_data = data;
- dbg_data->err = kvm_vcpu_ioctl(dbg_data->env, KVM_SET_GUEST_DEBUG, &dbg_data->dbg);
+ CPUState *env = dbg_data->env;
+
+ if (env->kvm_state->regs_modified) {
+ kvm_arch_put_registers(env);
+ env->kvm_state->regs_modified = 0;
+ }
+ dbg_data->err = kvm_vcpu_ioctl(env, KVM_SET_GUEST_DEBUG, &dbg_data->dbg);
}
int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap)
return err;
}
- TAILQ_INSERT_HEAD(¤t_env->kvm_state->kvm_sw_breakpoints,
+ QTAILQ_INSERT_HEAD(¤t_env->kvm_state->kvm_sw_breakpoints,
bp, entry);
} else {
err = kvm_arch_insert_hw_breakpoint(addr, len, type);
if (err)
return err;
- TAILQ_REMOVE(¤t_env->kvm_state->kvm_sw_breakpoints, bp, entry);
+ QTAILQ_REMOVE(¤t_env->kvm_state->kvm_sw_breakpoints, bp, entry);
qemu_free(bp);
} else {
err = kvm_arch_remove_hw_breakpoint(addr, len, type);
KVMState *s = current_env->kvm_state;
CPUState *env;
- TAILQ_FOREACH_SAFE(bp, &s->kvm_sw_breakpoints, entry, next) {
+ QTAILQ_FOREACH_SAFE(bp, &s->kvm_sw_breakpoints, entry, next) {
if (kvm_arch_remove_sw_breakpoint(current_env, bp) != 0) {
/* Try harder to find a CPU that currently sees the breakpoint. */
for (env = first_cpu; env != NULL; env = env->next_cpu) {
projects / qemu.git / blobdiff