#define TARGET_VIRT_ADDR_SPACE_BITS 42
#elif defined(TARGET_PPC64)
#define TARGET_PHYS_ADDR_SPACE_BITS 42
-#elif defined(TARGET_X86_64) && !defined(USE_KQEMU)
+#elif defined(TARGET_X86_64) && !defined(CONFIG_KQEMU)
#define TARGET_PHYS_ADDR_SPACE_BITS 42
-#elif defined(TARGET_I386) && !defined(USE_KQEMU)
+#elif defined(TARGET_I386) && !defined(CONFIG_KQEMU)
#define TARGET_PHYS_ADDR_SPACE_BITS 36
#else
/* Note: for compatibility with kqemu, we use 32 bits for x86_64 */
uint8_t *code_gen_ptr;
#if !defined(CONFIG_USER_ONLY)
-ram_addr_t phys_ram_size;
int phys_ram_fd;
-uint8_t *phys_ram_base;
uint8_t *phys_ram_dirty;
static int in_migration;
-static ram_addr_t phys_ram_alloc_offset = 0;
+
+typedef struct RAMBlock {
+ uint8_t *host;
+ ram_addr_t offset;
+ ram_addr_t length;
+ struct RAMBlock *next;
+} RAMBlock;
+
+static RAMBlock *ram_blocks;
+/* TODO: When we implement (and use) ram deallocation (e.g. for hotplug)
+ then we can no longet assume contiguous ram offsets, and external uses
+ of this variable will break. */
+ram_addr_t last_ram_offset;
#endif
CPUState *first_cpu;
code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE;
#else
/* XXX: needs ajustments */
- code_gen_buffer_size = (unsigned long)(phys_ram_size / 4);
+ code_gen_buffer_size = (unsigned long)(ram_size / 4);
#endif
}
if (code_gen_buffer_size < MIN_CODE_GEN_BUFFER_SIZE)
cpu_index++;
}
env->cpu_index = cpu_index;
+ env->numa_node = 0;
TAILQ_INIT(&env->breakpoints);
TAILQ_INIT(&env->watchpoints);
*penv = env;
old_mask = env->interrupt_request;
env->interrupt_request |= mask;
+#ifndef CONFIG_USER_ONLY
+ /*
+ * If called from iothread context, wake the target cpu in
+ * case its halted.
+ */
+ if (!qemu_cpu_self(env)) {
+ qemu_cpu_kick(env);
+ return;
+ }
+#endif
+
if (use_icount) {
env->icount_decr.u16.high = 0xffff;
#ifndef CONFIG_USER_ONLY
memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *));
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
if (env->kqemu_enabled) {
kqemu_flush(env, flush_global);
}
tlb_flush_jmp_cache(env, addr);
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
if (env->kqemu_enabled) {
kqemu_flush_page(env, addr);
}
if (length == 0)
return;
len = length >> TARGET_PAGE_BITS;
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
/* XXX: should not depend on cpu context */
env = first_cpu;
if (env->kqemu_enabled) {
ram_addr_t orig_size = size;
void *subpage;
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
/* XXX: should not depend on cpu context */
env = first_cpu;
if (env->kqemu_enabled) {
kvm_uncoalesce_mmio_region(addr, size);
}
+#ifdef CONFIG_KQEMU
/* XXX: better than nothing */
-ram_addr_t qemu_ram_alloc(ram_addr_t size)
+static ram_addr_t kqemu_ram_alloc(ram_addr_t size)
{
ram_addr_t addr;
- if ((phys_ram_alloc_offset + size) > phys_ram_size) {
+ if ((last_ram_offset + size) > kqemu_phys_ram_size) {
fprintf(stderr, "Not enough memory (requested_size = %" PRIu64 ", max memory = %" PRIu64 ")\n",
- (uint64_t)size, (uint64_t)phys_ram_size);
+ (uint64_t)size, (uint64_t)kqemu_phys_ram_size);
abort();
}
- addr = phys_ram_alloc_offset;
- phys_ram_alloc_offset = TARGET_PAGE_ALIGN(phys_ram_alloc_offset + size);
+ addr = last_ram_offset;
+ last_ram_offset = TARGET_PAGE_ALIGN(last_ram_offset + size);
return addr;
}
+#endif
+
+ram_addr_t qemu_ram_alloc(ram_addr_t size)
+{
+ RAMBlock *new_block;
+
+#ifdef CONFIG_KQEMU
+ if (kqemu_phys_ram_base) {
+ return kqemu_ram_alloc(size);
+ }
+#endif
+
+ size = TARGET_PAGE_ALIGN(size);
+ new_block = qemu_malloc(sizeof(*new_block));
+
+ new_block->host = qemu_vmalloc(size);
+ new_block->offset = last_ram_offset;
+ new_block->length = size;
+
+ new_block->next = ram_blocks;
+ ram_blocks = new_block;
+
+ phys_ram_dirty = qemu_realloc(phys_ram_dirty,
+ (last_ram_offset + size) >> TARGET_PAGE_BITS);
+ memset(phys_ram_dirty + (last_ram_offset >> TARGET_PAGE_BITS),
+ 0xff, size >> TARGET_PAGE_BITS);
+
+ last_ram_offset += size;
+
+ if (kvm_enabled())
+ kvm_setup_guest_memory(new_block->host, size);
+
+ return new_block->offset;
+}
void qemu_ram_free(ram_addr_t addr)
{
+ /* TODO: implement this. */
}
/* Return a host pointer to ram allocated with qemu_ram_alloc.
*/
void *qemu_get_ram_ptr(ram_addr_t addr)
{
- return phys_ram_base + addr;
+ RAMBlock *prev;
+ RAMBlock **prevp;
+ RAMBlock *block;
+
+#ifdef CONFIG_KQEMU
+ if (kqemu_phys_ram_base) {
+ return kqemu_phys_ram_base + addr;
+ }
+#endif
+
+ prev = NULL;
+ prevp = &ram_blocks;
+ block = ram_blocks;
+ while (block && (block->offset > addr
+ || block->offset + block->length <= addr)) {
+ if (prev)
+ prevp = &prev->next;
+ prev = block;
+ block = block->next;
+ }
+ if (!block) {
+ fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr);
+ abort();
+ }
+ /* Move this entry to to start of the list. */
+ if (prev) {
+ prev->next = block->next;
+ block->next = *prevp;
+ *prevp = block;
+ }
+ return block->host + (addr - block->offset);
}
/* Some of the softmmu routines need to translate from a host pointer
(typically a TLB entry) back to a ram offset. */
ram_addr_t qemu_ram_addr_from_host(void *ptr)
{
- return (uint8_t *)ptr - phys_ram_base;
+ RAMBlock *prev;
+ RAMBlock **prevp;
+ RAMBlock *block;
+ uint8_t *host = ptr;
+
+#ifdef CONFIG_KQEMU
+ if (kqemu_phys_ram_base) {
+ return host - kqemu_phys_ram_base;
+ }
+#endif
+
+ prev = NULL;
+ prevp = &ram_blocks;
+ block = ram_blocks;
+ while (block && (block->host > host
+ || block->host + block->length <= host)) {
+ if (prev)
+ prevp = &prev->next;
+ prev = block;
+ block = block->next;
+ }
+ if (!block) {
+ fprintf(stderr, "Bad ram pointer %p\n", ptr);
+ abort();
+ }
+ return block->offset + (host - block->host);
}
static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr)
#endif
}
stb_p(qemu_get_ram_ptr(ram_addr), val);
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
if (cpu_single_env->kqemu_enabled &&
(dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK)
kqemu_modify_page(cpu_single_env, ram_addr);
#endif
}
stw_p(qemu_get_ram_ptr(ram_addr), val);
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
if (cpu_single_env->kqemu_enabled &&
(dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK)
kqemu_modify_page(cpu_single_env, ram_addr);
#endif
}
stl_p(qemu_get_ram_ptr(ram_addr), val);
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
if (cpu_single_env->kqemu_enabled &&
(dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK)
kqemu_modify_page(cpu_single_env, ram_addr);
io_mem_watch = cpu_register_io_memory(0, watch_mem_read,
watch_mem_write, NULL);
- /* alloc dirty bits array */
- phys_ram_dirty = qemu_vmalloc(phys_ram_size >> TARGET_PAGE_BITS);
- memset(phys_ram_dirty, 0xff, phys_ram_size >> TARGET_PAGE_BITS);
+#ifdef CONFIG_KQEMU
+ if (kqemu_phys_ram_base) {
+ /* alloc dirty bits array */
+ phys_ram_dirty = qemu_vmalloc(kqemu_phys_ram_size >> TARGET_PAGE_BITS);
+ memset(phys_ram_dirty, 0xff, kqemu_phys_ram_size >> TARGET_PAGE_BITS);
+ }
+#endif
}
/* mem_read and mem_write are arrays of functions containing the
function to access byte (index 0), word (index 1) and dword (index
- 2). Functions can be omitted with a NULL function pointer. The
- registered functions may be modified dynamically later.
+ 2). Functions can be omitted with a NULL function pointer.
If io_index is non zero, the corresponding io zone is
modified. If it is zero, a new io zone is allocated. The return
value can be used with cpu_register_physical_memory(). (-1) is
io_mem_used[io_index] = 0;
}
-CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index)
-{
- return io_mem_write[io_index >> IO_MEM_SHIFT];
-}
-
-CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index)
-{
- return io_mem_read[io_index >> IO_MEM_SHIFT];
-}
-
#endif /* !defined(CONFIG_USER_ONLY) */
/* physical memory access (slow version, mainly for debug) */
projects / qemu / blobdiff