*/
#include "config.h"
#ifdef _WIN32
-#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#else
#include <sys/types.h>
#define SMC_BITMAP_USE_THRESHOLD 10
-#define MMAP_AREA_START 0x00000000
-#define MMAP_AREA_END 0xa8000000
-
#if defined(TARGET_SPARC64)
#define TARGET_PHYS_ADDR_SPACE_BITS 41
#elif defined(TARGET_SPARC)
#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;
CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
void *io_mem_opaque[IO_MEM_NB_ENTRIES];
-static int io_mem_nb;
+static char io_mem_used[IO_MEM_NB_ENTRIES];
static int io_mem_watch;
#endif
return NULL;
pd = qemu_vmalloc(sizeof(PhysPageDesc) * L2_SIZE);
*lp = pd;
- for (i = 0; i < L2_SIZE; i++)
+ for (i = 0; i < L2_SIZE; i++) {
pd[i].phys_offset = IO_MEM_UNASSIGNED;
+ pd[i].region_offset = (index + i) << TARGET_PAGE_BITS;
+ }
}
return ((PhysPageDesc *)pd) + (index & (L2_SIZE - 1));
}
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)
exit(1);
}
}
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
{
int flags;
void *addr = NULL;
}
#else
code_gen_buffer = qemu_malloc(code_gen_buffer_size);
- if (!code_gen_buffer) {
- fprintf(stderr, "Could not allocate dynamic translator buffer\n");
- exit(1);
- }
map_exec(code_gen_buffer, code_gen_buffer_size);
#endif
#endif /* !USE_STATIC_CODE_GEN_BUFFER */
qemu_get_be32s(f, &env->halted);
qemu_get_be32s(f, &env->interrupt_request);
+ /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the
+ version_id is increased. */
+ env->interrupt_request &= ~0x01;
tlb_flush(env, 1);
return 0;
CPUState **penv;
int cpu_index;
+#if defined(CONFIG_USER_ONLY)
+ cpu_list_lock();
+#endif
env->next_cpu = NULL;
penv = &first_cpu;
cpu_index = 0;
cpu_index++;
}
env->cpu_index = cpu_index;
+ env->numa_node = 0;
TAILQ_INIT(&env->breakpoints);
TAILQ_INIT(&env->watchpoints);
*penv = env;
+#if defined(CONFIG_USER_ONLY)
+ cpu_list_unlock();
+#endif
#if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
register_savevm("cpu_common", cpu_index, CPU_COMMON_SAVE_VERSION,
cpu_common_save, cpu_common_load, env);
TranslationBlock *tb;
p->code_bitmap = qemu_mallocz(TARGET_PAGE_SIZE / 8);
- if (!p->code_bitmap)
- return;
tb = p->first_tb;
while (tb != NULL) {
return -EINVAL;
}
wp = qemu_malloc(sizeof(*wp));
- if (!wp)
- return -ENOMEM;
wp->vaddr = addr;
wp->len_mask = len_mask;
CPUBreakpoint *bp;
bp = qemu_malloc(sizeof(*bp));
- if (!bp)
- return -ENOMEM;
bp->pc = pc;
bp->flags = flags;
#if defined(TARGET_HAS_ICE)
if (env->singlestep_enabled != enabled) {
env->singlestep_enabled = enabled;
- /* must flush all the translated code to avoid inconsistancies */
- /* XXX: only flush what is necessary */
- tb_flush(env);
+ if (kvm_enabled())
+ kvm_update_guest_debug(env, 0);
+ else {
+ /* must flush all the translated code to avoid inconsistancies */
+ /* XXX: only flush what is necessary */
+ tb_flush(env);
+ }
}
#endif
}
cpu_set_log(loglevel);
}
-/* mask must never be zero, except for A20 change call */
-void cpu_interrupt(CPUState *env, int mask)
+static void cpu_unlink_tb(CPUState *env)
{
-#if !defined(USE_NPTL)
+#if defined(USE_NPTL)
+ /* FIXME: TB unchaining isn't SMP safe. For now just ignore the
+ problem and hope the cpu will stop of its own accord. For userspace
+ emulation this often isn't actually as bad as it sounds. Often
+ signals are used primarily to interrupt blocking syscalls. */
+#else
TranslationBlock *tb;
static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED;
+
+ tb = env->current_tb;
+ /* if the cpu is currently executing code, we must unlink it and
+ all the potentially executing TB */
+ if (tb && !testandset(&interrupt_lock)) {
+ env->current_tb = NULL;
+ tb_reset_jump_recursive(tb);
+ resetlock(&interrupt_lock);
+ }
#endif
+}
+
+/* mask must never be zero, except for A20 change call */
+void cpu_interrupt(CPUState *env, int mask)
+{
int old_mask;
old_mask = env->interrupt_request;
- /* FIXME: This is probably not threadsafe. A different thread could
- be in the middle of a read-modify-write operation. */
env->interrupt_request |= mask;
-#if defined(USE_NPTL)
- /* FIXME: TB unchaining isn't SMP safe. For now just ignore the
- problem and hope the cpu will stop of its own accord. For userspace
- emulation this often isn't actually as bad as it sounds. Often
- signals are used primarily to interrupt blocking syscalls. */
-#else
+
+#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
- /* CPU_INTERRUPT_EXIT isn't a real interrupt. It just means
- an async event happened and we need to process it. */
if (!can_do_io(env)
- && (mask & ~(old_mask | CPU_INTERRUPT_EXIT)) != 0) {
+ && (mask & ~old_mask) != 0) {
cpu_abort(env, "Raised interrupt while not in I/O function");
}
#endif
} else {
- tb = env->current_tb;
- /* if the cpu is currently executing code, we must unlink it and
- all the potentially executing TB */
- if (tb && !testandset(&interrupt_lock)) {
- env->current_tb = NULL;
- tb_reset_jump_recursive(tb);
- resetlock(&interrupt_lock);
- }
+ cpu_unlink_tb(env);
}
-#endif
}
void cpu_reset_interrupt(CPUState *env, int mask)
env->interrupt_request &= ~mask;
}
+void cpu_exit(CPUState *env)
+{
+ env->exit_request = 1;
+ cpu_unlink_tb(env);
+}
+
const CPULogItem cpu_log_items[] = {
{ CPU_LOG_TB_OUT_ASM, "out_asm",
"show generated host assembly code for each compiled TB" },
env->tlb_table[2][i].addr_read = -1;
env->tlb_table[2][i].addr_write = -1;
env->tlb_table[2][i].addr_code = -1;
-#if (NB_MMU_MODES == 4)
+#endif
+#if (NB_MMU_MODES >= 4)
env->tlb_table[3][i].addr_read = -1;
env->tlb_table[3][i].addr_write = -1;
env->tlb_table[3][i].addr_code = -1;
#endif
+#if (NB_MMU_MODES >= 5)
+ env->tlb_table[4][i].addr_read = -1;
+ env->tlb_table[4][i].addr_write = -1;
+ env->tlb_table[4][i].addr_code = -1;
#endif
+
}
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_entry(&env->tlb_table[1][i], addr);
#if (NB_MMU_MODES >= 3)
tlb_flush_entry(&env->tlb_table[2][i], addr);
-#if (NB_MMU_MODES == 4)
+#endif
+#if (NB_MMU_MODES >= 4)
tlb_flush_entry(&env->tlb_table[3][i], addr);
#endif
+#if (NB_MMU_MODES >= 5)
+ tlb_flush_entry(&env->tlb_table[4][i], addr);
#endif
tlb_flush_jmp_cache(env, addr);
-#ifdef USE_KQEMU
+#ifdef CONFIG_KQEMU
if (env->kqemu_enabled) {
kqemu_flush_page(env, addr);
}
}
}
+/* Note: start and end must be within the same ram block. */
void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
int dirty_flags)
{
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) {
/* we modify the TLB cache so that the dirty bit will be set again
when accessing the range */
- start1 = start + (unsigned long)phys_ram_base;
+ start1 = (unsigned long)qemu_get_ram_ptr(start);
+ /* Chek that we don't span multiple blocks - this breaks the
+ address comparisons below. */
+ if ((unsigned long)qemu_get_ram_ptr(end - 1) - start1
+ != (end - 1) - start) {
+ abort();
+ }
+
for(env = first_cpu; env != NULL; env = env->next_cpu) {
for(i = 0; i < CPU_TLB_SIZE; i++)
tlb_reset_dirty_range(&env->tlb_table[0][i], start1, length);
#if (NB_MMU_MODES >= 3)
for(i = 0; i < CPU_TLB_SIZE; i++)
tlb_reset_dirty_range(&env->tlb_table[2][i], start1, length);
-#if (NB_MMU_MODES == 4)
+#endif
+#if (NB_MMU_MODES >= 4)
for(i = 0; i < CPU_TLB_SIZE; i++)
tlb_reset_dirty_range(&env->tlb_table[3][i], start1, length);
#endif
+#if (NB_MMU_MODES >= 5)
+ for(i = 0; i < CPU_TLB_SIZE; i++)
+ tlb_reset_dirty_range(&env->tlb_table[4][i], start1, length);
#endif
}
}
static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry)
{
ram_addr_t ram_addr;
+ void *p;
if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
- ram_addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) +
- tlb_entry->addend - (unsigned long)phys_ram_base;
+ p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK)
+ + tlb_entry->addend);
+ ram_addr = qemu_ram_addr_from_host(p);
if (!cpu_physical_memory_is_dirty(ram_addr)) {
tlb_entry->addr_write |= TLB_NOTDIRTY;
}
#if (NB_MMU_MODES >= 3)
for(i = 0; i < CPU_TLB_SIZE; i++)
tlb_update_dirty(&env->tlb_table[2][i]);
-#if (NB_MMU_MODES == 4)
+#endif
+#if (NB_MMU_MODES >= 4)
for(i = 0; i < CPU_TLB_SIZE; i++)
tlb_update_dirty(&env->tlb_table[3][i]);
#endif
+#if (NB_MMU_MODES >= 5)
+ for(i = 0; i < CPU_TLB_SIZE; i++)
+ tlb_update_dirty(&env->tlb_table[4][i]);
#endif
}
tlb_set_dirty1(&env->tlb_table[1][i], vaddr);
#if (NB_MMU_MODES >= 3)
tlb_set_dirty1(&env->tlb_table[2][i], vaddr);
-#if (NB_MMU_MODES == 4)
+#endif
+#if (NB_MMU_MODES >= 4)
tlb_set_dirty1(&env->tlb_table[3][i], vaddr);
#endif
+#if (NB_MMU_MODES >= 5)
+ tlb_set_dirty1(&env->tlb_table[4][i], vaddr);
#endif
}
/* IO memory case (romd handled later) */
address |= TLB_MMIO;
}
- addend = (unsigned long)phys_ram_base + (pd & TARGET_PAGE_MASK);
+ addend = (unsigned long)qemu_get_ram_ptr(pd & TARGET_PAGE_MASK);
if ((pd & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) {
/* Normal RAM. */
iotlb = pd & TARGET_PAGE_MASK;
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) {
if (kvm_enabled())
kvm_set_phys_mem(start_addr, size, phys_offset);
+ if (phys_offset == IO_MEM_UNASSIGNED) {
+ region_offset = start_addr;
+ }
region_offset &= TARGET_PAGE_MASK;
size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
end_addr = start_addr + (target_phys_addr_t)size;
if (need_subpage || phys_offset & IO_MEM_SUBWIDTH) {
subpage = subpage_init((addr & TARGET_PAGE_MASK),
&p->phys_offset, IO_MEM_UNASSIGNED,
- 0);
+ addr & TARGET_PAGE_MASK);
subpage_register(subpage, start_addr2, end_addr2,
phys_offset, region_offset);
p->region_offset = 0;
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.
+ With the exception of the softmmu code in this file, this should
+ only be used for local memory (e.g. video ram) that the device owns,
+ and knows it isn't going to access beyond the end of the block.
+
+ It should not be used for general purpose DMA.
+ Use cpu_physical_memory_map/cpu_physical_memory_rw instead.
+ */
+void *qemu_get_ram_ptr(ram_addr_t 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)
+{
+ 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)
dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS];
#endif
}
- stb_p(phys_ram_base + ram_addr, val);
-#ifdef USE_KQEMU
+ stb_p(qemu_get_ram_ptr(ram_addr), val);
+#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);
dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS];
#endif
}
- stw_p(phys_ram_base + ram_addr, val);
-#ifdef USE_KQEMU
+ stw_p(qemu_get_ram_ptr(ram_addr), val);
+#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);
dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS];
#endif
}
- stl_p(phys_ram_base + ram_addr, val);
-#ifdef USE_KQEMU
+ stl_p(qemu_get_ram_ptr(ram_addr), val);
+#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);
int subpage_memory;
mmio = qemu_mallocz(sizeof(subpage_t));
- if (mmio != NULL) {
- mmio->base = base;
- subpage_memory = cpu_register_io_memory(0, subpage_read, subpage_write, mmio);
+
+ mmio->base = base;
+ subpage_memory = cpu_register_io_memory(0, subpage_read, subpage_write, mmio);
#if defined(DEBUG_SUBPAGE)
- printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__,
- mmio, base, TARGET_PAGE_SIZE, subpage_memory);
+ printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__,
+ mmio, base, TARGET_PAGE_SIZE, subpage_memory);
#endif
- *phys = subpage_memory | IO_MEM_SUBPAGE;
- subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory,
+ *phys = subpage_memory | IO_MEM_SUBPAGE;
+ subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory,
region_offset);
- }
return mmio;
}
+static int get_free_io_mem_idx(void)
+{
+ int i;
+
+ for (i = 0; i<IO_MEM_NB_ENTRIES; i++)
+ if (!io_mem_used[i]) {
+ io_mem_used[i] = 1;
+ return i;
+ }
+
+ return -1;
+}
+
static void io_mem_init(void)
{
+ int i;
+
cpu_register_io_memory(IO_MEM_ROM >> IO_MEM_SHIFT, error_mem_read, unassigned_mem_write, NULL);
cpu_register_io_memory(IO_MEM_UNASSIGNED >> IO_MEM_SHIFT, unassigned_mem_read, unassigned_mem_write, NULL);
cpu_register_io_memory(IO_MEM_NOTDIRTY >> IO_MEM_SHIFT, error_mem_read, notdirty_mem_write, NULL);
- io_mem_nb = 5;
+ for (i=0; i<5; i++)
+ io_mem_used[i] = 1;
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
int i, subwidth = 0;
if (io_index <= 0) {
- if (io_mem_nb >= IO_MEM_NB_ENTRIES)
- return -1;
- io_index = io_mem_nb++;
+ io_index = get_free_io_mem_idx();
+ if (io_index == -1)
+ return io_index;
} else {
if (io_index >= IO_MEM_NB_ENTRIES)
return -1;
return (io_index << IO_MEM_SHIFT) | subwidth;
}
-CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index)
+void cpu_unregister_io_memory(int io_table_address)
{
- return io_mem_write[io_index >> IO_MEM_SHIFT];
-}
+ int i;
+ int io_index = io_table_address >> IO_MEM_SHIFT;
-CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index)
-{
- return io_mem_read[io_index >> IO_MEM_SHIFT];
+ for (i=0;i < 3; i++) {
+ io_mem_read[io_index][i] = unassigned_mem_read[i];
+ io_mem_write[io_index][i] = unassigned_mem_write[i];
+ }
+ io_mem_opaque[io_index] = NULL;
+ io_mem_used[io_index] = 0;
}
#endif /* !defined(CONFIG_USER_ONLY) */
if (is_write) {
if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
+ target_phys_addr_t addr1 = addr;
io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
if (p)
- addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset;
+ addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset;
/* XXX: could force cpu_single_env to NULL to avoid
potential bugs */
- if (l >= 4 && ((addr & 3) == 0)) {
+ if (l >= 4 && ((addr1 & 3) == 0)) {
/* 32 bit write access */
val = ldl_p(buf);
- io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
+ io_mem_write[io_index][2](io_mem_opaque[io_index], addr1, val);
l = 4;
- } else if (l >= 2 && ((addr & 1) == 0)) {
+ } else if (l >= 2 && ((addr1 & 1) == 0)) {
/* 16 bit write access */
val = lduw_p(buf);
- io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val);
+ io_mem_write[io_index][1](io_mem_opaque[io_index], addr1, val);
l = 2;
} else {
/* 8 bit write access */
val = ldub_p(buf);
- io_mem_write[io_index][0](io_mem_opaque[io_index], addr, val);
+ io_mem_write[io_index][0](io_mem_opaque[io_index], addr1, val);
l = 1;
}
} else {
unsigned long addr1;
addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK);
/* RAM case */
- ptr = phys_ram_base + addr1;
+ ptr = qemu_get_ram_ptr(addr1);
memcpy(ptr, buf, l);
if (!cpu_physical_memory_is_dirty(addr1)) {
/* invalidate code */
} else {
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
!(pd & IO_MEM_ROMD)) {
+ target_phys_addr_t addr1 = addr;
/* I/O case */
io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
if (p)
- addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset;
- if (l >= 4 && ((addr & 3) == 0)) {
+ addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset;
+ if (l >= 4 && ((addr1 & 3) == 0)) {
/* 32 bit read access */
- val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
+ val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr1);
stl_p(buf, val);
l = 4;
- } else if (l >= 2 && ((addr & 1) == 0)) {
+ } else if (l >= 2 && ((addr1 & 1) == 0)) {
/* 16 bit read access */
- val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr);
+ val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr1);
stw_p(buf, val);
l = 2;
} else {
/* 8 bit read access */
- val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr);
+ val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr1);
stb_p(buf, val);
l = 1;
}
} else {
/* RAM case */
- ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) +
+ ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) +
(addr & ~TARGET_PAGE_MASK);
memcpy(buf, ptr, l);
}
unsigned long addr1;
addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK);
/* ROM/RAM case */
- ptr = phys_ram_base + addr1;
+ ptr = qemu_get_ram_ptr(addr1);
memcpy(ptr, buf, l);
}
len -= l;
ptr = bounce.buffer;
} else {
addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK);
- ptr = phys_ram_base + addr1;
+ ptr = qemu_get_ram_ptr(addr1);
}
if (!done) {
ret = ptr;
{
if (buffer != bounce.buffer) {
if (is_write) {
- unsigned long addr1 = (uint8_t *)buffer - phys_ram_base;
+ ram_addr_t addr1 = qemu_ram_addr_from_host(buffer);
while (access_len) {
unsigned l;
l = TARGET_PAGE_SIZE;
val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
} else {
/* RAM case */
- ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) +
+ ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) +
(addr & ~TARGET_PAGE_MASK);
val = ldl_p(ptr);
}
#endif
} else {
/* RAM case */
- ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) +
+ ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) +
(addr & ~TARGET_PAGE_MASK);
val = ldq_p(ptr);
}
io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
} else {
unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK);
- ptr = phys_ram_base + addr1;
+ ptr = qemu_get_ram_ptr(addr1);
stl_p(ptr, val);
if (unlikely(in_migration)) {
io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32);
#endif
} else {
- ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) +
+ ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) +
(addr & ~TARGET_PAGE_MASK);
stq_p(ptr, val);
}
unsigned long addr1;
addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK);
/* RAM case */
- ptr = phys_ram_base + addr1;
+ ptr = qemu_get_ram_ptr(addr1);
stl_p(ptr, val);
if (!cpu_physical_memory_is_dirty(addr1)) {
/* invalidate code */
#endif
-/* virtual memory access for debug */
+/* virtual memory access for debug (includes writing to ROM) */
int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
uint8_t *buf, int len, int is_write)
{
l = (page + TARGET_PAGE_SIZE) - addr;
if (l > len)
l = len;
- cpu_physical_memory_rw(phys_addr + (addr & ~TARGET_PAGE_MASK),
- buf, l, is_write);
+ phys_addr += (addr & ~TARGET_PAGE_MASK);
+#if !defined(CONFIG_USER_ONLY)
+ if (is_write)
+ cpu_physical_memory_write_rom(phys_addr, buf, l);
+ else
+#endif
+ cpu_physical_memory_rw(phys_addr, buf, l, is_write);
len -= l;
buf += l;
addr += l;
projects / qemu / blobdiff