84b89d782f
Provide a function to add an allocated region of memory to the qemu RAM. This patch is copied from Marcelo's qemu_ram_map() in qemu-kvm and given the clearer name qemu_ram_alloc_from_ptr(). Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
134 lines
5.1 KiB
C
134 lines
5.1 KiB
C
#ifndef CPU_COMMON_H
|
|
#define CPU_COMMON_H 1
|
|
|
|
/* CPU interfaces that are target indpendent. */
|
|
|
|
#if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
|
|
#define WORDS_ALIGNED
|
|
#endif
|
|
|
|
#ifdef TARGET_PHYS_ADDR_BITS
|
|
#include "targphys.h"
|
|
#endif
|
|
|
|
#ifndef NEED_CPU_H
|
|
#include "poison.h"
|
|
#endif
|
|
|
|
#include "bswap.h"
|
|
#include "qemu-queue.h"
|
|
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
|
|
/* address in the RAM (different from a physical address) */
|
|
typedef unsigned long ram_addr_t;
|
|
|
|
/* memory API */
|
|
|
|
typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
|
|
typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
|
|
|
|
void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
|
|
ram_addr_t size,
|
|
ram_addr_t phys_offset,
|
|
ram_addr_t region_offset);
|
|
static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
|
|
ram_addr_t size,
|
|
ram_addr_t phys_offset)
|
|
{
|
|
cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
|
|
}
|
|
|
|
ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
|
|
ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name,
|
|
ram_addr_t size, void *host);
|
|
ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size);
|
|
void qemu_ram_free(ram_addr_t addr);
|
|
/* This should only be used for ram local to a device. */
|
|
void *qemu_get_ram_ptr(ram_addr_t addr);
|
|
/* This should not be used by devices. */
|
|
ram_addr_t qemu_ram_addr_from_host(void *ptr);
|
|
|
|
int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read,
|
|
CPUWriteMemoryFunc * const *mem_write,
|
|
void *opaque);
|
|
void cpu_unregister_io_memory(int table_address);
|
|
|
|
void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
|
int len, int is_write);
|
|
static inline void cpu_physical_memory_read(target_phys_addr_t addr,
|
|
uint8_t *buf, int len)
|
|
{
|
|
cpu_physical_memory_rw(addr, buf, len, 0);
|
|
}
|
|
static inline void cpu_physical_memory_write(target_phys_addr_t addr,
|
|
const uint8_t *buf, int len)
|
|
{
|
|
cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
|
|
}
|
|
void *cpu_physical_memory_map(target_phys_addr_t addr,
|
|
target_phys_addr_t *plen,
|
|
int is_write);
|
|
void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
|
|
int is_write, target_phys_addr_t access_len);
|
|
void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
|
|
void cpu_unregister_map_client(void *cookie);
|
|
|
|
struct CPUPhysMemoryClient;
|
|
typedef struct CPUPhysMemoryClient CPUPhysMemoryClient;
|
|
struct CPUPhysMemoryClient {
|
|
void (*set_memory)(struct CPUPhysMemoryClient *client,
|
|
target_phys_addr_t start_addr,
|
|
ram_addr_t size,
|
|
ram_addr_t phys_offset);
|
|
int (*sync_dirty_bitmap)(struct CPUPhysMemoryClient *client,
|
|
target_phys_addr_t start_addr,
|
|
target_phys_addr_t end_addr);
|
|
int (*migration_log)(struct CPUPhysMemoryClient *client,
|
|
int enable);
|
|
QLIST_ENTRY(CPUPhysMemoryClient) list;
|
|
};
|
|
|
|
void cpu_register_phys_memory_client(CPUPhysMemoryClient *);
|
|
void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *);
|
|
|
|
/* Coalesced MMIO regions are areas where write operations can be reordered.
|
|
* This usually implies that write operations are side-effect free. This allows
|
|
* batching which can make a major impact on performance when using
|
|
* virtualization.
|
|
*/
|
|
void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
|
|
|
|
void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
|
|
|
|
void qemu_flush_coalesced_mmio_buffer(void);
|
|
|
|
uint32_t ldub_phys(target_phys_addr_t addr);
|
|
uint32_t lduw_phys(target_phys_addr_t addr);
|
|
uint32_t ldl_phys(target_phys_addr_t addr);
|
|
uint64_t ldq_phys(target_phys_addr_t addr);
|
|
void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
|
|
void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
|
|
void stb_phys(target_phys_addr_t addr, uint32_t val);
|
|
void stw_phys(target_phys_addr_t addr, uint32_t val);
|
|
void stl_phys(target_phys_addr_t addr, uint32_t val);
|
|
void stq_phys(target_phys_addr_t addr, uint64_t val);
|
|
|
|
void cpu_physical_memory_write_rom(target_phys_addr_t addr,
|
|
const uint8_t *buf, int len);
|
|
|
|
#define IO_MEM_SHIFT 3
|
|
|
|
#define IO_MEM_RAM (0 << IO_MEM_SHIFT) /* hardcoded offset */
|
|
#define IO_MEM_ROM (1 << IO_MEM_SHIFT) /* hardcoded offset */
|
|
#define IO_MEM_UNASSIGNED (2 << IO_MEM_SHIFT)
|
|
#define IO_MEM_NOTDIRTY (3 << IO_MEM_SHIFT)
|
|
|
|
/* Acts like a ROM when read and like a device when written. */
|
|
#define IO_MEM_ROMD (1)
|
|
#define IO_MEM_SUBPAGE (2)
|
|
|
|
#endif
|
|
|
|
#endif /* !CPU_COMMON_H */
|