Bananymous
e2e5c31d54
Kernel: Map multiboot2 memory in PageTable initialization
...
It cannot be assumed that multiboot data lies between kernel_end
and 2 GiB mark, so I properly allocate virtual address space for it.
2023-10-17 01:15:08 +03:00
Bananymous
be3efb0b92
Kernel: Start using multiboot2 instead of multiboot
...
This allows better compatibility with (U)EFI and gives RSDP location
instead of me having to scan ram to find it.
2023-10-17 01:06:24 +03:00
bc1087f5a7
Kernel: Add pointer validation API to page table
2023-09-22 17:20:35 +03:00
720bc418a6
All: Clear lines with only whitspace in them
2023-09-10 00:31:42 +03:00
008c777a9f
Kernel: Add PageTable::Flags::CacheDisable
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Also fix multiple places where we were using uint8_t as page table
flags instead of PageTable::flags_t which we promoted to uint16_t
while back.
2023-08-06 23:59:30 +03:00
91f04ce250
Kernel: Change PageTable API
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Getting free pages not reserves them, so you don't have to hold
the page table lock :)
2023-08-02 22:09:14 +03:00
926df2b276
Kernel: PageTable now supports reserved pages
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You can now map pages as reserved, so that they will not be given
from get_free_page() or get_free_contiguous_pages().
2023-08-01 16:35:54 +03:00
dcd4d0daeb
Kernel/LibC: Add bareboness signals
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You can now call raise() to raise a signal. Signal handlers are
not yet supported, but the handling works :)
2023-07-21 15:45:02 +03:00
faf4220b38
Kernel: kernel memory takes now full pml4e
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This allows flags to work properly
2023-07-21 13:47:05 +03:00
193ddaa2f6
Kernel: remove PAGE_FLAGS_MASK as that was not correct anymore
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After I added NXE bit, the flags mask is no longer valid
2023-07-21 12:01:50 +03:00
46eb27883a
Kernel: Don't map kernel executable memory as writable
2023-07-21 11:17:39 +03:00
ba9fa00947
Kernel: fix memory leak in PageTable
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PageTable used to leak 2 pages on creation and other two on deletion
2023-07-19 23:17:39 +03:00
6c1ada8d0a
Kernel: Enable global bit on kernel pages
2023-07-13 15:23:25 +03:00
7d00c2670f
Kernel: Support execute disable bit
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We will now map executable memory explicitly as executable.
2023-07-13 14:28:53 +03:00
86df258365
Kernel: rework the whole PageTable structure
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We now have page table structure for kernel memory which is shared
between all processes.
2023-07-05 23:41:35 +03:00
5e123031aa
Kernel: kmalloc has now somewhat dynamic storage
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Allocations bigger than PAGE_SIZE and those not forced to be identity
mapped are now done on a GeneralAllocator. This allows us to use kmalloc
for big allocations; bigger than the fixed 1 MiB storage.
This is still a hack and the whole kmalloc will have to be rewritten at
some point, but for now this does the job :D
2023-06-18 23:27:00 +03:00
2b9900e56e
Kernel: get_free_contiguous_pages works with non-page aligned addresses
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also fix bug in ordering
2023-06-06 02:03:23 +03:00
8352392b38
Kernel: You can specify first vaddr for getting free pages
2023-06-04 01:15:48 +03:00
9f75d9cfe5
Kernel: PageTable now has debug_dump
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This dumps all the mapped pages and their flags
2023-06-03 20:08:13 +03:00
8175348284
Kernel: Fix comment
2023-05-31 00:51:15 +03:00
b2832cb47a
Kernel: PageTable destructor works now
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we are successfully booting higher half kernel now :)
2023-05-31 00:44:14 +03:00
9f499991c8
Kernel: PageTable::create_userspace() now works
2023-05-31 00:44:14 +03:00
ed0dcacab3
Kernel: Move V2P and P2V to Memory/Types.h
2023-05-30 23:57:03 +03:00
e86050f343
Kernel: PageTable::map_range_at maps correctly the last page
2023-05-30 23:56:07 +03:00
57f7da6ce1
Kernel: Booting with higher half kernel gets to Heap initialization
2023-05-30 22:21:12 +03:00
93e6455171
Kernel: start work on higher half kernel
2023-05-30 08:00:17 +03:00
e640344d7a
Kernel: Rename MMU to PageTable
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This is more descriptive name for what it actually represents
2023-05-29 21:06:09 +03:00
Bananymous
Bananymous