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#include <trustzone/kree/mem.h>
#include <trustzone/kree/system.h>
#include <trustzone/tz_cross/ta_mem.h>
#include <linux/mm.h>
#define DBG_KREE_MEM
// notiec: handle type is the same
static inline TZ_RESULT _allocFunc (uint32_t cmd, KREE_SESSION_HANDLE session,
uint32_t *mem_handle, uint32_t alignment, uint32_t size, char *dbg)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
if ((session == 0) || (mem_handle == NULL) || (size == 0))
{
return TZ_RESULT_ERROR_BAD_PARAMETERS;
}
p[0].value.a = alignment;
p[1].value.a = size;
ret = KREE_TeeServiceCall(session, cmd,
TZ_ParamTypes3( TZPT_VALUE_INPUT, TZPT_VALUE_INPUT, TZPT_VALUE_OUTPUT), p);
if (ret != TZ_RESULT_SUCCESS)
{
#ifdef DBG_KREE_MEM
printk("[kree] %s Error: %d\n", dbg, ret);
#endif
return ret;
}
*mem_handle = (KREE_SECUREMEM_HANDLE) p[2].value.a;
return TZ_RESULT_SUCCESS;
}
static inline TZ_RESULT _handleOpFunc (uint32_t cmd, KREE_SESSION_HANDLE session, uint32_t mem_handle, char *dbg)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
if ((session == 0) || (mem_handle == 0))
{
return TZ_RESULT_ERROR_BAD_PARAMETERS;
}
p[0].value.a = (uint32_t) mem_handle;
ret = KREE_TeeServiceCall(session, cmd,
TZ_ParamTypes1( TZPT_VALUE_INPUT), p);
if (ret < 0)
{
#ifdef DBG_KREE_MEM
printk("[kree] %s Error: %d\n", dbg, ret);
#endif
return ret;
}
return TZ_RESULT_SUCCESS;
}
static inline TZ_RESULT _handleOpFunc_1 (uint32_t cmd, KREE_SESSION_HANDLE session, uint32_t mem_handle, uint32_t *count, char *dbg)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
if ((session == 0) || (mem_handle == 0) || (count == NULL))
{
return TZ_RESULT_ERROR_BAD_PARAMETERS;
}
p[0].value.a = (uint32_t) mem_handle;
ret = KREE_TeeServiceCall(session, cmd,
TZ_ParamTypes2( TZPT_VALUE_INPUT, TZPT_VALUE_OUTPUT), p);
if (ret < 0)
{
#ifdef DBG_KREE_MEM
printk("[kree] %s Error: %d\n", dbg, ret);
#endif
*count = 0;
return ret;
}
*count = p[1].value.a;
return TZ_RESULT_SUCCESS;
}
TZ_RESULT kree_register_sharedmem (KREE_SESSION_HANDLE session, KREE_SHAREDMEM_HANDLE *mem_handle,
void *start, uint32_t size, void *map_p)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
p[0].value.a = (unsigned long)start;
p[0].value.b = (unsigned long)start >> 32;
p[1].value.a = size;
p[2].mem.buffer = map_p;
if(map_p != NULL)
p[2].mem.size = ((*(uint32_t *)map_p)+1)*sizeof(uint32_t);
else
p[2].mem.size = 0;
ret = KREE_TeeServiceCall(session, TZCMD_MEM_SHAREDMEM_REG,
TZ_ParamTypes4(TZPT_VALUE_INPUT, TZPT_VALUE_INPUT, TZPT_MEM_INPUT, TZPT_VALUE_OUTPUT), p);
if (ret != TZ_RESULT_SUCCESS)
{
*mem_handle = 0;
return ret;
}
*mem_handle = p[3].value.a;
return TZ_RESULT_SUCCESS;
}
TZ_RESULT kree_unregister_sharedmem (KREE_SESSION_HANDLE session, KREE_SHAREDMEM_HANDLE mem_handle)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
p[0].value.a = (uint32_t) mem_handle;
ret = KREE_TeeServiceCall(session, TZCMD_MEM_SHAREDMEM_UNREG,
TZ_ParamTypes1(TZPT_VALUE_INPUT), p);
if (ret != TZ_RESULT_SUCCESS)
{
return ret;
}
return TZ_RESULT_SUCCESS;
}
/* APIs
*/
TZ_RESULT KREE_RegisterSharedmem (KREE_SESSION_HANDLE session,
KREE_SHAREDMEM_HANDLE *shm_handle, KREE_SHAREDMEM_PARAM *param)
{
TZ_RESULT ret;
if ((session == 0) || (shm_handle == NULL) || (param->buffer == NULL) || (param->size == 0))
{
return TZ_RESULT_ERROR_BAD_PARAMETERS;
}
// only for kmalloc
if ((param->buffer >= (void *)PAGE_OFFSET) &&
(param->buffer < high_memory))
{
ret = kree_register_sharedmem (session, shm_handle, param->buffer, param->size, 0); // set 0 for no remap...
if (ret != TZ_RESULT_SUCCESS)
{
#ifdef DBG_KREE_MEM
printk("[kree] KREE_RegisterSharedmem Error: %d\n", ret);
#endif
return ret;
}
}
else
{
printk("[kree] KREE_RegisterSharedmem Error: support kmalloc only!!!\n");
return TZ_RESULT_ERROR_NOT_IMPLEMENTED;
}
return TZ_RESULT_SUCCESS;
}
TZ_RESULT KREE_UnregisterSharedmem (KREE_SESSION_HANDLE session, KREE_SHAREDMEM_HANDLE shm_handle)
{
TZ_RESULT ret;
if ((session == 0) || (shm_handle == 0))
{
return TZ_RESULT_ERROR_BAD_PARAMETERS;
}
ret = kree_unregister_sharedmem (session, shm_handle);
if (ret < 0)
{
#ifdef DBG_KREE_MEM
printk("[kree] KREE_UnregisterSharedmem Error: %d\n", ret);
#endif
return ret;
}
return TZ_RESULT_SUCCESS;
}
TZ_RESULT KREE_AllocSecuremem (KREE_SESSION_HANDLE session,
KREE_SECUREMEM_HANDLE *mem_handle, uint32_t alignment, uint32_t size)
{
TZ_RESULT ret;
ret = _allocFunc (TZCMD_MEM_SECUREMEM_ALLOC, session, mem_handle, alignment, size, "KREE_AllocSecuremem");
return ret;
}
TZ_RESULT KREE_ReferenceSecuremem (KREE_SESSION_HANDLE session, KREE_SECUREMEM_HANDLE mem_handle)
{
TZ_RESULT ret;
ret = _handleOpFunc (TZCMD_MEM_SECUREMEM_REF, session, mem_handle, "KREE_ReferenceSecuremem");
return ret;
}
TZ_RESULT KREE_UnreferenceSecuremem (KREE_SESSION_HANDLE session, KREE_SECUREMEM_HANDLE mem_handle)
{
TZ_RESULT ret;
uint32_t count = 0;
ret = _handleOpFunc_1 (TZCMD_MEM_SECUREMEM_UNREF, session, mem_handle, &count, "KREE_UnreferenceSecuremem");
#ifdef DBG_KREE_MEM
printk ("KREE_UnreferenceSecuremem: count = 0x%x\n", count);
#endif
return ret;
}
TZ_RESULT KREE_AllocSecurechunkmem (KREE_SESSION_HANDLE session,
KREE_SECUREMEM_HANDLE *cm_handle, uint32_t alignment, uint32_t size)
{
TZ_RESULT ret;
ret = _allocFunc (TZCMD_MEM_SECURECM_ALLOC, session, cm_handle, alignment, size, "KREE_AllocSecurechunkmem");
return ret;
}
TZ_RESULT KREE_ReferenceSecurechunkmem (KREE_SESSION_HANDLE session, KREE_SECURECM_HANDLE cm_handle)
{
TZ_RESULT ret;
ret = _handleOpFunc (TZCMD_MEM_SECURECM_REF, session, cm_handle, "KREE_ReferenceSecurechunkmem");
return ret;
}
TZ_RESULT KREE_UnreferenceSecurechunkmem (KREE_SESSION_HANDLE session, KREE_SECURECM_HANDLE cm_handle)
{
TZ_RESULT ret;
uint32_t count = 0;
ret = _handleOpFunc_1 (TZCMD_MEM_SECURECM_UNREF, session, cm_handle, &count, "KREE_UnreferenceSecurechunkmem");
#ifdef DBG_KREE_MEM
printk ("KREE_UnreferenceSecurechunkmem: count = 0x%x\n", count);
#endif
return ret;
}
TZ_RESULT KREE_ReadSecurechunkmem (KREE_SESSION_HANDLE session, uint32_t offset, uint32_t size, void *buffer)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
if ((session == 0) || (size == 0))
{
return TZ_RESULT_ERROR_BAD_PARAMETERS;
}
p[0].value.a = offset;
p[1].value.a = size;
p[2].mem.buffer = buffer;
p[2].mem.size = size; // fix me!!!!
ret = KREE_TeeServiceCall(session, TZCMD_MEM_SECURECM_READ,
TZ_ParamTypes3(TZPT_VALUE_INPUT, TZPT_VALUE_INPUT, TZPT_MEM_OUTPUT), p);
if (ret != TZ_RESULT_SUCCESS)
{
#ifdef DBG_KREE_MEM
printk("[kree] KREE_ReadSecurechunkmem Error: %d\n", ret);
#endif
return ret;
}
return TZ_RESULT_SUCCESS;
}
TZ_RESULT KREE_WriteSecurechunkmem (KREE_SESSION_HANDLE session, uint32_t offset, uint32_t size, void *buffer)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
if ((session == 0) || (size == 0))
{
return TZ_RESULT_ERROR_BAD_PARAMETERS;
}
p[0].value.a = offset;
p[1].value.a = size;
p[2].mem.buffer = buffer;
p[2].mem.size = size; // fix me!!!!
ret = KREE_TeeServiceCall(session, TZCMD_MEM_SECURECM_WRITE,
TZ_ParamTypes3(TZPT_VALUE_INPUT, TZPT_VALUE_INPUT, TZPT_MEM_INPUT), p);
if (ret != TZ_RESULT_SUCCESS)
{
#ifdef DBG_KREE_MEM
printk("[kree] KREE_WriteSecurechunkmem Error: %d\n", ret);
#endif
return ret;
}
return TZ_RESULT_SUCCESS;
}
TZ_RESULT KREE_GetSecurechunkReleaseSize (KREE_SESSION_HANDLE session, uint32_t *size)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
ret = KREE_TeeServiceCall(session, TZCMD_MEM_SECURECM_RSIZE, TZ_ParamTypes1(TZPT_VALUE_OUTPUT), p);
if (ret != TZ_RESULT_SUCCESS)
{
#ifdef DBG_KREE_MEM
printk("[kree] KREE_GetSecurechunkReleaseSize Error: %d\n", ret);
#endif
return ret;
}
*size = p[0].value.a;
return TZ_RESULT_SUCCESS;
}
TZ_RESULT KREE_GetTEETotalSize (KREE_SESSION_HANDLE session, uint32_t *size)
{
MTEEC_PARAM p[4];
TZ_RESULT ret;
ret = KREE_TeeServiceCall(session, TZCMD_MEM_TOTAL_SIZE, TZ_ParamTypes1(TZPT_VALUE_OUTPUT), p);
if (ret != TZ_RESULT_SUCCESS)
{
#ifdef DBG_KREE_MEM
printk("[kree] KREE_GetTEETotalSize Error: %d\n", ret);
#endif
return ret;
}
*size = p[0].value.a;
return TZ_RESULT_SUCCESS;
}
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