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48182 commits 1 branch 0 tags 230 MiB
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858 commits

Author SHA1 Message Date
Timon Kruiper
f8e4eecbfb Kernel: Replace calls to Prekernel::panic() with PANIC macro on aarch64 2022-05-03 21:53:36 +02:00
Timon Kruiper
e81e1fa9c8 Kernel: Implement __panic() for the aarch64 Kernel 
Now that dump_backtrace() works, we can actually print a helpful
backtrace when the Kernel panics.
 2022-05-03 21:53:36 +02:00
Timon Kruiper
e7cf591ec0 Kernel: Load the kernel symbol table for the aarch64 Kernel 
Since kmalloc() now works, we can actually load the kernel symbol table!
This in turn allows us to call dump_backtrace(), and actually get a
useful backtrace in the aarch64 Kernel.
 2022-05-03 21:53:36 +02:00
Timon Kruiper
b464321618 Kernel: Add kmalloc_init() to the init function of the aarch64 Kernel 
With the previous commits, we are now able to call kmalloc() :^)
 2022-05-03 21:53:36 +02:00
Timon Kruiper
3b4d2d9b51 Kernel: Remove VERIFY_NOT_REACHED in {current, idle}_thread for aarch64 
These functions are called by kmalloc, and since there is no support for
threading in the aarch64 build yet, we can simply remove the
VERIFY_NOT_REACHED().
 2022-05-03 21:53:36 +02:00
Timon Kruiper
8e0bd63b0c Kernel: Add bare-minimum implementation for aarch64 Spinlock 2022-05-03 21:53:36 +02:00
Timon Kruiper
9abcb6700c Kernel: Move Arch/x86/Spinlock.h and add stubs for aarch64 
The code in Spinlock.h has no architectural specific logic, thus can be
moved to the Arch directory. This contains no functional change.

Also add the Spinlock.cpp file for aarch64 which contains stubs for the
lock and unlock functions.
 2022-05-03 21:53:36 +02:00
Timon Kruiper
0d6d4508df Kernel: Add the .ksyms section to the aarch64 Kernel binary 
Previously the embedmap.sh script generated a warning, since there was
no section defined where the actual kernel.map could be stored. This is
necesarry for generating kernel backtraces.
 2022-05-03 21:53:36 +02:00
Timon Kruiper
9f76b16124 Kernel: Implement safe_memcpy for the aarch64 build 
The implementation just calls the regular memcpy, and is not safe yet.
This can be done later.
 2022-05-03 21:53:36 +02:00
Timon Kruiper
feba7bc8a8 Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 
The file does not contain any specific architectural code, thus it can
be moved to the Kernel/Arch directory.
 2022-05-03 21:53:36 +02:00
Timon Kruiper
267febae55 Kernel: Add KSyms.cpp to the aarch64 build 
This is the first step in making dump_backtrace() work.
 2022-05-03 21:53:36 +02:00
Timon Kruiper
15f32379bb Kernel: Remove UART::{print_num, print_hex} since they are unused 2022-05-03 00:59:35 +02:00
Timon Kruiper
47a58c51c6 Kernel: Modify UART::print_str() to also take into account the length 
Previously in the aarch64 Kernel, this would cause dbgln() to actually
print more characters of the next string in memory, because strings in
the Kernel are not zero terminated by default. Prevent this by using the
passed in length of the string.
 2022-05-03 00:59:35 +02:00
Timon Kruiper
4a2dcea685 Kernel: Remove aarch64/Utils.{cpp, h} since they are not used anymore 2022-05-03 00:59:35 +02:00
Timon Kruiper
83265b4cb2 Kernel: Replace calls to UART::print_str() with dbgln() 
Since we can now use dbgln() in the aarch64 Kernel, lets use it! :^)
 2022-05-03 00:59:35 +02:00
Timon Kruiper
b046c82f75 Kernel: Let Processor::is_initialized() of aarch64 return false 
When calling dbgln(), the formatting code in AK/Format.h calls
Processor::is_initialized() to determine whether to add some text about
the current processor to the debug output. Instead of crashing, we just
return false, such that we can use dbgln() etc in the aarch64 Kernel.
 2022-05-03 00:59:35 +02:00
Timon Kruiper
b9944ca905 Kernel: Add aarch64 version of kprintf.cpp 
This allows us to use the AK formatting functions in the aarch64 Kernel.
Also add FIXME to make sure that this file will be removed when the
proper abstractions are in place in the normal Kernel/kprintf.cpp.
 2022-05-03 00:59:35 +02:00
Linus Groh
cd3e337487 Kernel: Strip null terminators from all CPUID strings, not just brand 
I've noticed that the KVM hypervisor vendor ID string contained null
terminators in the serialized JSON string in /proc/cpuinfo - let's avoid
that, and err on the side of caution and strip them from all strings
built from CPUID register values. They may not be fixed width after all.
 2022-04-26 20:20:44 +02:00
Linus Groh
62185452f0 Kernel: Query OS-enabled CPUID features again at the end of cpu_setup() 
For OSPKE this is a no-op as we don't enable PKU yet, but the state of
the OSXSAVE flag might have changed if we enabled XSAVE.
 2022-04-08 18:53:42 +01:00
Linus Groh
87aabb5ef7 Kernel: Rename OSPKU CPUID feature flag to OSPKE 
Unlike "XSAVE enabled by OS" being indicated by the OSXSAVE flag, in
this case it's "PKU enabled by OS" being indicated by the OSPKE flag.
 2022-04-08 18:53:42 +01:00
Tiaan Louw
678555af97 Kernel: Adjust includes after file reorganization 2022-04-08 15:06:33 +01:00
James Mintram
d94c7fa417 Kernel: Improve the aarch64 kernel source files disk layout 2022-04-06 08:56:20 +01:00
James Mintram
df9a833d7a Kernel: Add VERIFY_NOT_REACHED to aarch64 PageDirectory.cpp 2022-04-04 14:35:54 -07:00
James Mintram
283d8e8f51 Kernel: Add VERIFY_NOT_REACHED to aarch64 locking functions 2022-04-04 14:35:54 -07:00
James Mintram
e98ea8a977 Kernel: Add VERIFY_NOT_REACHED to the aarch64 handle_crash function 2022-04-04 14:35:54 -07:00
James Mintram
d014c0501d Kernel: Remove unused dummy function from dummy.cpp 2022-04-04 14:35:54 -07:00
James Mintram
bd7acd4b90 Kernel: Add VERIFY_NOT_REACHED to stub functions in aarch64 dummy.cpp 2022-04-04 14:35:54 -07:00
James Mintram
92a8383101 Kernel: Add VERIFY_NOT_REACHED to stub aarch64 Processor functions 2022-04-04 14:35:54 -07:00
James Mintram
463910df98 Kernel: Print out assertion info in __assertion_failed on aarch64 2022-04-04 22:25:33 +01:00
James Mintram
2b442ae44f Kernel: Add kmalloc.cpp to aarch64 2022-04-03 23:21:04 +02:00
Linus Groh
b0f701d053 Kernel: Convert ProcessorInfo::build_brand_string() to StringBuilder 2022-04-03 23:20:33 +02:00
Linus Groh
3f9c2495e5 Kernel: Remove EBX, ECX, and EDX values from hypervisor dmesgln() 2022-04-03 23:20:33 +02:00
Linus Groh
8d96525b9d Kernel: Move hypervisor vendor ID string to ProcessorInfo 
This will make it possible to expose it in /proc/cpuinfo. :^)
 2022-04-03 23:20:33 +02:00
Linus Groh
f6181cd47e Kernel: Make ProcessorInfo::build_foo_string() private 2022-04-03 23:20:33 +02:00
Linus Groh
afce63fffc Kernel: Move feature string building to ProcessorInfo 
Other than a dmesgln(), ProcessorInfo is the only user of this function
and is already responsible for building other CPUID-related strings.
 2022-04-03 23:20:33 +02:00
Linus Groh
53a95a5347 Kernel: Rename some ProcessorInfo members to match Intel manual 
Let's use terminology from the the Intel manual to avoid confusion.
Also add `_string` suffixes to better distinguish the numeric values
from the string values.
 2022-04-03 23:20:33 +02:00
Linus Groh
ebe2cf8995 Kernel: Move private ProcessorInfo members to the end 2022-04-03 23:20:33 +02:00
James Mintram
9186ed3101 Kernel: Add all memory files to aarch64 and fix resulting linker errors 2022-04-02 19:34:20 -07:00
James Mintram
d79c772c87 Kernel: Make MemoryManager compile on aarch64 2022-04-02 19:34:20 -07:00
James Mintram
6299a69253 Kernel: Make handle_crash available to aarch64 2022-04-02 19:34:20 -07:00
James Mintram
d3b6201b40 Kernel: Make PageDirectory.cpp compile on aarch64 2022-04-02 19:34:20 -07:00
James Mintram
783a44b18e Kernel: Make PhysicalRegion.cpp compile on aarch64 2022-04-02 19:34:20 -07:00
James Mintram
627fd231d5 Kernel: Make Region.cpp compile on aarch64 2022-04-02 19:34:20 -07:00
James Mintram
a883079b29 Kernel: Add missing new/delete and kcalloc to dummy.cpp 2022-04-02 19:34:20 -07:00
James Mintram
031b0c76b5 Kernel: Re-add dummy.cpp and remove duplicate definitions 2022-04-02 19:34:20 -07:00
James Mintram
d50e237281 Kernel: Add idle_thread() to aarch64 Processor.h 2022-04-02 19:34:20 -07:00
James Mintram
026efae8a8 Kernel: Add PAGE_MASK to an aarch64 CPU header 2022-04-02 19:34:20 -07:00
Idan Horowitz
086969277e Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Linus Groh
1e82c2708d Kernel: Support all AMD-defined CPUID feature flags for EAX=80000001h 
We're now able to detect all the AMD-defined CPUID feature flags from
ECX/EDX for EAX=80000001h :^)
 2022-03-27 18:54:56 +02:00
Linus Groh
96e6420d8d Kernel: Support all Intel-defined extended CPUID feature flags for EAX=7 
We're now able to detect all the extended CPUID feature flags from
EBX/ECX/EDX for EAX=7 :^)
 2022-03-27 18:54:56 +02:00