support huge mmap

[Ticonderoga2017]

Description

Support for huge page allocation: When performing operations like mmap, consider using huge page allocation instead of only using 4K pages.

Related Issues(If necessary)

Implementation Details

• Add a page_size parameter to the map_alloc memory allocation method in aspace. This parameter is used for aligning the start address and the size of the allocation, and it should be stored in Backend::Alloc.
• Add a find_free_area_with_align method in aspace. This method is used when allocating large page memory, ensuring that the found memory address is aligned according to the specified page_size.
• The allocated and freed physical memory consists of a contiguous sequence of physical addresses, each with a page size of 4KB.
• Support map linear and dma
• Use the aarch64 platform and expand the memory to 4GB.

How to Test

Conduct tests in the following areas:

• Allocation and deallocation of 4K pages, 2M pages, and 1G pages. After allocation, perform memory read/write operations, then deallocate.
• Allocate 4K, 2M, and 1G pages in batches first, then deallocate them all at once. After allocation, perform memory read/write operations, then deallocate.
• Interleaved allocation and deallocation of 4K, 2M, and 1G pages. After allocation, perform memory read/write operations, then deallocate.
• Test immediate allocation and lazy allocation for 4K, 2M, and 1G pages. After allocation, perform memory read/write operations, then deallocate.
• Test file read/write operations on 4K, 2Mpages.
• Test linear mapping of 4K, 2M, and 1G pages.

Add this test case to the testcase_list file, and then execute the following commands in sequence from the root directory of starry-next:
Modify the value of the phys-memory-size parameter in the configs/platforms/aarch64-qemu-virt.toml file to 0x1_0000_0000.
./scripts/get_deps.sh
make ARCH=aarch64 PLATFORM=aarch64-qemu-virt defconfig
make ARCH=aarch64 PLATFORM=aarch64-qemu-virt AX_TESTCASE=libc user_apps
make ARCH=aarch64 PLATFORM=aarch64-qemu-virt MEM=4G LOG=debug AX_TESTCASE=libc BLK=y NET=y FEATURES=fp_simd,page-alloc-4g ACCEL=n run

Tips: Please provide the test results of running testcases for starry-next on the commit corresponding to your PR. You can paste it here in the form of a screenshot, or provide a CI link to a branch or fork of starry-next for us to review.

Additional Notes