SRAM1_text overflow

[HAlzo]

I am trying to port a FW which was running on STM32H7 controller to F4 core of STM32MP157.
I get this errors
CM4.elf section `.text' will not fit in region `SRAM1_text' CM4 C/C++ Problem
make: *** [makefile:68: CM4.elf] Error 1 CM4 C/C++ Problem
region `SRAM1_text' overflowed by 1073768 bytes CM4 C/C++ Problem
region SRAM1_text overflowed with text and data CM4 C/C++ Problem
section .data VMA [0000000010020000,0000000010020327] overlaps section .text VMA [0000000010000000,0000000010124003] CM4 C/C++ Problem

How to over come this problem, is it possible to change the allocated RAM for M4 code?

[RhSilicon]

Was the STM32H7 2MB RAM? It seems that the STM32MP157 supports a lot of external memory.

The STM32MP157A/D devices incorporate high-speed embedded memories with 708 Kbytes of Internal SRAM (including 256 Kbytes of AXI SYSRAM, 3 banks of 128 Kbytes each of AHB SRAM, 64 Kbytes of AHB SRAM in backup domain and 4 Kbytes of SRAM in backup domain), as well as an extensive range of enhanced I/Os and peripherals connected to APB buses, AHB buses, a 32-bit multi-AHB bus matrix and a 64-bit multi layer AXI interconnect supporting internal and external memories access.

The STM32MP157A/D devices provide an external SDRAM interface supporting external memories up to 8-Gbit density (1 Gbyte), 16 or 32-bit LPDDR2/LPDDR3 or DDR3/DDR3L up to 533 MHz.

https://www.st.com/en/microcontrollers-microprocessors/stm32mp157a.html

Code should reside in SRAMs/RETRAM as Cortex-M4 performance execution penalty for running code from external memory will be extremely high (has there is no caches and bus paths are not optimized for that).

https://community.st.com/t5/stm32-mpu-products/stm32mp157-memory-for-the-m4-core/m-p/123138

[HAlzo]

The STM32H7 has 2MB Flash.
The A7 core copy the M4 elf. file from internal flash to the M4 RAM. 
So I need to have a M4 RAM to accommodate the H7 flash image.

As you explained the max available Internal RAM for M4 is 708KB so I should reduce my flash image size.

Now the question, can I have more than M4 image stored in A7 flash and  load the reqired one to M4 RAM and switch between them ?