I am using an STM32H747 - (in an Arduino Portenta) - share data between cores in SDRAM

The SDRAM is 8MB, and starts at 0x60000000

I would like o share the first 1MB between the M4 and the M7 cores

void MPU_Config() {
 MPU_Region_InitTypeDef MPU_InitStruct;
 
 /* Disable the MPU */
 HAL_MPU_Disable();
 
 // Initialize SDRAM Start as shareable
 MPU_InitStruct.Enable = MPU_REGION_ENABLE;
 MPU_InitStruct.BaseAddress = 0x60000000;
 MPU_InitStruct.Size = MPU_REGION_SIZE_1MB;
 //MPU_InitStruct.SubRegionDisable = 0x00;
 //MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
 MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
 MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
 MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
 MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
 MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
 
 
 HAL_MPU_ConfigRegion(&MPU_InitStruct);
 
 /* Enable the MPU */
 HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
}

I would like to know if the code above is the correct way to set up the shareable region.

Thanks for any help