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feat: [libcpu/c906] support ARCH_REMAP_KERNEL
This change was necessary to enable the remapping of the kernel image to
a high virtual address region on the c906 platform.
Changes:
- Introduced new configuration options `ARCH_REMAP_KERNEL`, and
`ARCH_USING_ASID` under the `ARCH_RISCV64` section.
- Updated MMU initialization and switching functions to incorporate
remapping handling.
- Modified page table setup for proper memory attribute settings.
- Added support for early memory setup, kernel remapping
- Added conditional compilation for ASID support in the `rt_aspace` struct,
since this is not enable currently for most architecture.
Signed-off-by: Shell <[email protected]>
Co-authored-by: Shell <[email protected]>
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* memory setup using memblock
* map pages later
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Signed-off-by: Shell <[email protected]>
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* [smart] fixup: precise mm fault type
Also, fixup arm64 read access fault
* arm64: using meaningful macro on trap
* fixup: renaming macro
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There is no next-level directory under the components/mm/
directory. Do not need to enter the next-level directory
to process the SConscript file.
Signed-off-by: Chen Wang <[email protected]>
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* [ofw] dealing with mem region out of kernel space
- Fix parameter checking in _out_of_range() that NULL is excluded for
fixed mapping
- Split page install with a deferred stage to avoid mapping over
ARCH_EARLY_MAP_SIZE
Signed-off-by: Shell <[email protected]>
* fixup: restrict vstart for using of RT_NULL
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Signed-off-by: Shell <[email protected]>
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Signed-off-by: Shell <[email protected]>
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Signed-off-by: xqyjlj <[email protected]>
Signed-off-by: Shell <[email protected]>
Co-authored-by: xqyjlj <[email protected]>
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Signed-off-by: Shell <[email protected]>
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Signed-off-by: Shell <[email protected]>
Co-authored-by: xqyjlj <[email protected]>
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Signed-off-by: Shell <[email protected]>
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Signed-off-by: shell <[email protected]>
Signed-off-by: Shell <[email protected]>
Co-authored-by: xqyjlj <[email protected]>
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Signed-off-by: Shell <[email protected]>
Co-authored-by: Shell <[email protected]>
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including out-of-bound access in dfs, and use-after-free in
aspace_traversal
Signed-off-by: Shell <[email protected]>
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Signed-off-by: shell <[email protected]>
Signed-off-by: Shell <[email protected]>
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Signed-off-by: Shell <[email protected]>
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Signed-off-by: GuEe-GUI <[email protected]>
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* [mm/page] multi-list page manager
[mm/page] page debugger
[libcpu/aarch64] hugepage support
* [quality] remove void-arith
* [format] remove kasan codes
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* [fix] compile error from rpi
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* [utest/mm] add testcase for create/init
format codes of create/init in components/mm
* [libcpu/aarch64] fix user stack check routine
* [kservice] export API for utest
* [utest/mm] testcase for aspace_map
format & modify the files under components/mm related with aspace_map
* [lwp/user_mm] add user_map_varea for mmap feature
* [mm] rename rt_mm_fault_try_fix to rt_aspace_fault_try_fix
* [utest/mm] testcase for synchronization
* [mm] modify unmap api to improve throughput
* [utest/mm] testcases for cache and varea map
* [format] remove extra space
* [utest/mm] fix testcase problem in header
* [lwp] extend map_user_varea with a flag
* [utest/mm] testcase for lwp_map_user_varea
* [libcpu/arm/cortex-a] fix kernel space layout
* [utest/mm] adjust for armv7 arch
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* [mm] mmu operations should be wrapped by _aspace_bst_insert & _aspace_bst_remove to avoid competition on page table
* [lwp] may not return null on failed
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* [syscall] move sys_cacheflush to lwp_syscall.c
* [syscall] improve assertion
* [format] rename to rt_ctassert
* [debug] modified ct assertion on mm_page.c
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* [libcpu/risc-v] support noncached normal memory
* [mm] check before dereference in _fetch_page
* [mm] add comments on ioremap
* [ioremap] report more info on failed
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* [fix] implementation fault on avl
* [fix] mm may free varea allocated statically
* [test] add test and benchmark for avl
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fix bugs on cache maintenance when starting user app
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* [rt-smart/mem] remove pv_offset
* [rt-smart] list kernel space command
* [rt-smart] restore ioremap region
* [revert] restore kernel space isolation
* [rt-smart/pv_off] code format
* [rt-smart] add get_pvoff()
* [pvoffset] pvoff as constant for C codes
* [pvoff] pvoff as interfaces
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* [rt-smart] asid for c906
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* [rv64/bsp] porting to mm
* [mm] report more info for debugging
* [fix] code format
* [libcpu/c906] porting to RTOS
* [fix] using rtdbg api
* [fix] add return
* [fix] report more information for debugging
* [fix] use assert 0 for unrecoverable error
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* [mm] enable mm on armv7, armv8, rv64 only
* [mm] config on ARCH_MM_MMU
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synchronize virtual memory system works.
adding kernel virtual memory management layer for page-based MMU enabled architecture
porting libcpu MMU codes
porting lwp memory related codes
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