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author | Robert Mustacchi <rm@joyent.com> | 2011-06-24 13:49:54 -0700 |
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committer | Robert Mustacchi <rm@joyent.com> | 2011-06-24 13:49:54 -0700 |
commit | 68396ea9c0fe4f75ce30b1eba2c44c43c13344bb (patch) | |
tree | 802587d411d9db461e6500c5b635043315f81c27 /softmmu-semi.h | |
download | illumos-kvm-cmd-68396ea9c0fe4f75ce30b1eba2c44c43c13344bb.tar.gz |
Initial commit of d32e8d0b8d9e0ef7cf7ab2e74548982972789dfc from qemu-kvm
Diffstat (limited to 'softmmu-semi.h')
-rw-r--r-- | softmmu-semi.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/softmmu-semi.h b/softmmu-semi.h new file mode 100644 index 0000000..79278cc --- /dev/null +++ b/softmmu-semi.h @@ -0,0 +1,70 @@ +/* + * Helper routines to provide target memory access for semihosting + * syscalls in system emulation mode. + * + * Copyright (c) 2007 CodeSourcery. + * + * This code is licenced under the GPL + */ + +static inline uint32_t softmmu_tget32(CPUState *env, uint32_t addr) +{ + uint32_t val; + + cpu_memory_rw_debug(env, addr, (uint8_t *)&val, 4, 0); + return tswap32(val); +} +static inline uint32_t softmmu_tget8(CPUState *env, uint32_t addr) +{ + uint8_t val; + + cpu_memory_rw_debug(env, addr, &val, 1, 0); + return val; +} + +#define get_user_u32(arg, p) ({ arg = softmmu_tget32(env, p) ; 0; }) +#define get_user_u8(arg, p) ({ arg = softmmu_tget8(env, p) ; 0; }) +#define get_user_ual(arg, p) get_user_u32(arg, p) + +static inline void softmmu_tput32(CPUState *env, uint32_t addr, uint32_t val) +{ + val = tswap32(val); + cpu_memory_rw_debug(env, addr, (uint8_t *)&val, 4, 1); +} +#define put_user_u32(arg, p) ({ softmmu_tput32(env, p, arg) ; 0; }) +#define put_user_ual(arg, p) put_user_u32(arg, p) + +static void *softmmu_lock_user(CPUState *env, uint32_t addr, uint32_t len, + int copy) +{ + uint8_t *p; + /* TODO: Make this something that isn't fixed size. */ + p = malloc(len); + if (copy) + cpu_memory_rw_debug(env, addr, p, len, 0); + return p; +} +#define lock_user(type, p, len, copy) softmmu_lock_user(env, p, len, copy) +static char *softmmu_lock_user_string(CPUState *env, uint32_t addr) +{ + char *p; + char *s; + uint8_t c; + /* TODO: Make this something that isn't fixed size. */ + s = p = malloc(1024); + do { + cpu_memory_rw_debug(env, addr, &c, 1, 0); + addr++; + *(p++) = c; + } while (c); + return s; +} +#define lock_user_string(p) softmmu_lock_user_string(env, p) +static void softmmu_unlock_user(CPUState *env, void *p, target_ulong addr, + target_ulong len) +{ + if (len) + cpu_memory_rw_debug(env, addr, p, len, 1); + free(p); +} +#define unlock_user(s, args, len) softmmu_unlock_user(env, s, args, len) |