Move the mmu_initial_mapping from platform into arch/x86. For this
architecture the default mappings are basically hard coded in arch/x86
anyway, so move ownership of this data there, closer to where it's
actually initialized.
Update the 32 and 64bit paging code to properly use the paddr_to_kvaddr
and vice versa routines.
Update to allocate page tables directly from the pmm instead of the heap
(on 32bit code).
vm map takes arg 3 as virtual address. And same needs
to be passed to retrieve aspace. Fix this by passing
right arg.
Test: Ran 'vm map' test
] vm map 0xc0000000 0xffff000ff0000000 1 0x0
arch_mmu_map returns 0
Signed-off-by: Chintan Pandya <chintanpandya@google.com>
Some of the structures, notably 'cmd', in the lib console stuff are a
little too generically named and have collided with some other code
so prefix the names a bit more cleanly with console_
The change is largely mechanical, and folks with out of tree code can
easily switch by renaming:
cmd -> console_cmd
cmd_args -> console_cmd_args
cmd_block -> console_cmd_block
console_cmd -> console_cmd_func
Apologies if this breaks you but it should be pretty easy to fix.
TL;DR most uses of lib/console.h -> lk/console_cmd.h
Move the part that lets a piece of code somewhere in the system to
define a console command from the actual lib/console api to start an
instance of the console. Move in almost every place the user of the
console command definition to the new header, lk/console_cmd.h which is
always in the include path.
Also remove most uses of testing for WITH_LIB_CONSOLE since you can
almost always just safely define it and then let the linker remove it.
Replace the body of the MIT license with a reference to the LICENSE file
and a URL with the MIT license. Replaces 20 something lines with 3.
No functional change.
Almost nothing changes here except moving braces to the same line as the
function declaration. Everything else is largely whitespace changes and
a few dangling files with tab indents.
See scripts/codestyle
Generically add support for more than one user address space,
attach to a thread, and context switch as thread swaps happen.
Add support for ARM and ARM64, and stub out support for x86 platforms.
Ran everything through scripts/codestyle.space, which uses astyle
to generally follow K&R style.
Biggest non whitespace change is pulling brackets down on function
declarations, which I'm pretty ambivalent about, but astyle insists
on taking a stance
This picks up the major work of allowing multiple heap implementations
and enable dlmalloc as an alternate heap to the simple existing one
(now called 'miniheap').
Also added a novm page allocator for memory management on systems too small
or missing an mmu to have a vm. Not much more than a simple bitmap allocator
that the heap pulls from. Allows for other heaps and/or users of physical
memory to coexist and span multiple banks of memory.
Pass arch_mmu_flags (instead of flags) to arch_mmu_pick_spot routine.
This bug would mostly affect ARMv7 platforms with enabled support
for non-secure memory.
Change-Id: Ic97ee6d3f05528170d66ab5033b24adf1d0c514e
Some architectures might have resrictions on selecting
virtual address depending on properties of particular
VM allocation. This CL allows arch to provide a hook into
virtual address allocator to handle such restictions.
Change-Id: I28e912dcf2cf260b7e6666b6a9384178e41bfa73
If mark_pages_in_use fails to mark the kernel code (or data) as used,
it will get corrupted as the heap starts reusing using it.
Change-Id: I48f62bb68dcbad3268304aa2a1e63e9956128064
-Fixes bug where the code would walk off the end of an arena, not
detecting the case where there is no way to satisfy the request.
Change-Id: I16434f13faa6d5d76aaba5bf3c458d230e4db888
If the end of a range is at the end of the virtual address space,
(base + size) is 0. Use (base + size - 1) instead.
Change-Id: I7d02250d765df0ab2bd23b60ee7a484951238c58
