#include "trace.h"
#endif
+#define WANT_EXEC_OBSOLETE
+#include "exec-obsolete.h"
+
//#define DEBUG_TB_INVALIDATE
//#define DEBUG_FLUSH
//#define DEBUG_TLB
CPUState *first_cpu;
/* current CPU in the current thread. It is only valid inside
cpu_exec() */
-CPUState *cpu_single_env;
+DEFINE_TLS(CPUState *,cpu_single_env);
/* 0 = Do not count executed instructions.
1 = Precise instruction counting.
2 = Adaptive rate instruction counting. */
int use_icount = 0;
-/* Current instruction counter. While executing translated code this may
- include some instructions that have not yet been executed. */
-int64_t qemu_icount;
typedef struct PageDesc {
/* list of TBs intersecting this ram page */
#define V_L1_SHIFT (L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS - V_L1_BITS)
unsigned long qemu_real_host_page_size;
-unsigned long qemu_host_page_bits;
unsigned long qemu_host_page_size;
unsigned long qemu_host_page_mask;
qemu_host_page_size = qemu_real_host_page_size;
if (qemu_host_page_size < TARGET_PAGE_SIZE)
qemu_host_page_size = TARGET_PAGE_SIZE;
- qemu_host_page_bits = 0;
- while ((1 << qemu_host_page_bits) < qemu_host_page_size)
- qemu_host_page_bits++;
qemu_host_page_mask = ~(qemu_host_page_size - 1);
#if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY)
pd = *lp;
if (pd == NULL) {
int i;
+ int first_index = index & ~(L2_SIZE - 1);
if (!alloc) {
return NULL;
for (i = 0; i < L2_SIZE; i++) {
pd[i].phys_offset = IO_MEM_UNASSIGNED;
- pd[i].region_offset = (index + i) << TARGET_PAGE_BITS;
+ pd[i].region_offset = (first_index + i) << TARGET_PAGE_BITS;
}
}
code_gen_buffer_size = tb_size;
if (code_gen_buffer_size == 0) {
#if defined(CONFIG_USER_ONLY)
- /* in user mode, phys_ram_size is not meaningful */
code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE;
#else
/* XXX: needs adjustments */
if (code_gen_buffer_size > (512 * 1024 * 1024))
code_gen_buffer_size = (512 * 1024 * 1024);
#elif defined(__arm__)
- /* Map the buffer below 32M, so we can use direct calls and branches */
- flags |= MAP_FIXED;
- start = (void *) 0x01000000UL;
+ /* Keep the buffer no bigger than 16GB to branch between blocks */
if (code_gen_buffer_size > 16 * 1024 * 1024)
code_gen_buffer_size = 16 * 1024 * 1024;
#elif defined(__s390x__)
static char logfile_buf[4096];
setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf));
}
-#elif !defined(_WIN32)
- /* Win32 doesn't support line-buffering and requires size >= 2 */
+#elif defined(_WIN32)
+ /* Win32 doesn't support line-buffering, so use unbuffered output. */
+ setvbuf(logfile, NULL, _IONBF, 0);
+#else
setvbuf(logfile, NULL, _IOLBF, 0);
#endif
log_append = 1;
static ram_addr_t find_ram_offset(ram_addr_t size)
{
RAMBlock *block, *next_block;
- ram_addr_t offset = 0, mingap = RAM_ADDR_MAX;
+ ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX;
if (QLIST_EMPTY(&ram_list.blocks))
return 0;
}
}
if (next - end >= size && next - end < mingap) {
- offset = end;
+ offset = end;
mingap = next - end;
}
}
+
+ if (offset == RAM_ADDR_MAX) {
+ fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n",
+ (uint64_t)size);
+ abort();
+ }
+
return offset;
}
}
ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name,
- ram_addr_t size, void *host)
+ ram_addr_t size, void *host,
+ MemoryRegion *mr)
{
RAMBlock *new_block, *block;
}
#else
if (xen_enabled()) {
- xen_ram_alloc(new_block->offset, size);
+ xen_ram_alloc(new_block->offset, size, mr);
} else {
new_block->host = qemu_vmalloc(size);
}
return new_block->offset;
}
-ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size)
+ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size,
+ MemoryRegion *mr)
{
- return qemu_ram_alloc_from_ptr(dev, name, size, NULL);
+ return qemu_ram_alloc_from_ptr(dev, name, size, NULL, mr);
}
void qemu_ram_free_from_ptr(ram_addr_t addr)
&subpage_writel,
};
+static uint32_t subpage_ram_readb(void *opaque, target_phys_addr_t addr)
+{
+ ram_addr_t raddr = addr;
+ void *ptr = qemu_get_ram_ptr(raddr);
+ return ldub_p(ptr);
+}
+
+static void subpage_ram_writeb(void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ ram_addr_t raddr = addr;
+ void *ptr = qemu_get_ram_ptr(raddr);
+ stb_p(ptr, value);
+}
+
+static uint32_t subpage_ram_readw(void *opaque, target_phys_addr_t addr)
+{
+ ram_addr_t raddr = addr;
+ void *ptr = qemu_get_ram_ptr(raddr);
+ return lduw_p(ptr);
+}
+
+static void subpage_ram_writew(void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ ram_addr_t raddr = addr;
+ void *ptr = qemu_get_ram_ptr(raddr);
+ stw_p(ptr, value);
+}
+
+static uint32_t subpage_ram_readl(void *opaque, target_phys_addr_t addr)
+{
+ ram_addr_t raddr = addr;
+ void *ptr = qemu_get_ram_ptr(raddr);
+ return ldl_p(ptr);
+}
+
+static void subpage_ram_writel(void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ ram_addr_t raddr = addr;
+ void *ptr = qemu_get_ram_ptr(raddr);
+ stl_p(ptr, value);
+}
+
+static CPUReadMemoryFunc * const subpage_ram_read[] = {
+ &subpage_ram_readb,
+ &subpage_ram_readw,
+ &subpage_ram_readl,
+};
+
+static CPUWriteMemoryFunc * const subpage_ram_write[] = {
+ &subpage_ram_writeb,
+ &subpage_ram_writew,
+ &subpage_ram_writel,
+};
+
static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end,
ram_addr_t memory, ram_addr_t region_offset)
{
printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__,
mmio, start, end, idx, eidx, memory);
#endif
- if ((memory & ~TARGET_PAGE_MASK) == IO_MEM_RAM)
- memory = IO_MEM_UNASSIGNED;
+ if ((memory & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
+ memory = IO_MEM_SUBPAGE_RAM;
+ }
memory = (memory >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
for (; idx <= eidx; idx++) {
mmio->sub_io_index[idx] = memory;
cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read,
notdirty_mem_write, NULL,
DEVICE_NATIVE_ENDIAN);
+ cpu_register_io_memory_fixed(IO_MEM_SUBPAGE_RAM, subpage_ram_read,
+ subpage_ram_write, NULL,
+ DEVICE_NATIVE_ENDIAN);
for (i=0; i<5; i++)
io_mem_used[i] = 1;
}
#define MMUSUFFIX _cmmu
+#undef GETPC
#define GETPC() NULL
#define env cpu_single_env
#define SOFTMMU_CODE_ACCESS
projects / qemu.git / blobdiff