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540 commits

Author SHA1 Message Date
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
Linus Groh
6ca03b915e Kernel: Support all Intel-defined CPUID feature flags for EAX=1 
We're now able to detect all the regular CPUID feature flags from
ECX/EDX for EAX=1 :^)

None of the new ones are being used for anything yet, but they will show
up in /proc/cpuinfo and subsequently lscpu and SystemMonitor.

Note that I replaced the periods from the SSE 4.1 and 4.2 instructions
with underscores, which matches the internal enum names, Linux's
/proc/cpuinfo and the general pattern of replacing special characters
with underscores to limit feature names to [a-z0-9_].

The enum member stringification has been moved to a new function for
better re-usability and to avoid cluttering up Processor.cpp.
 2022-03-27 18:54:56 +02:00
Linus Groh
bc7ec02a82 Kernel: Implement CPUFeature as an ArbitrarySizedEnum 
This will make it possible to add many, many more CPU features - more
than the current limit 32 and later limit of 64 if we stick with an enum
class to be specific :^)
 2022-03-27 18:54:56 +02:00
Linus Groh
e284ee7dcf Kernel: Fix whack formatting of the CPUID constructor 2022-03-27 18:54:56 +02:00
Linus Groh
c895780829 Kernel: Reorder code in Processor::cpu_detect() for readability 
Checks of ECX go before EDX, and the bit indices are now ordered
properly. Additionally, handling of the EDX[11] bit has been moved into
a lambda function to keep the series of if statements neatly together.
All of this makes it *a lot* easier to follow along and compare the
implementation to the tables in the Intel manual, e.g. to find missing
checks.
 2022-03-27 18:54:56 +02:00
Hendiadyoin1
150e6a59c0 Kernel: Add and use bitwise operators to CPUFeature 2022-03-22 18:20:01 +00:00
Idan Horowitz
a9764dabee Kernel: Add helpers for rdrand and rdseed 2022-03-21 23:33:42 +01:00
Lenny Maiorani
190cf1507b Kernel: Use default constructors/destructors 
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules

"The compiler is more likely to get the default semantics right and
you cannot implement these functions better than the compiler."
 2022-03-17 00:51:36 -07:00
Jakub V. Flasar
6d2c298b66 Kernel: Move aarch64 Prekernel into Kernel 
As there is no need for a Prekernel on aarch64, the Prekernel code was
moved into Kernel itself. The functionality remains the same.

SERENITY_KERNEL_AND_INITRD in run.sh specifies a kernel and an inital
ramdisk to be used by the emulator. This is needed because aarch64
does not need a Prekernel and the other ones do.
 2022-03-12 14:54:12 -08:00
Jakub V. Flasar
f94293f121 Kernel: Create a stub mcontext for aarch64 
The struct only has a stub integer so that the size is the same for C
and C++. Something caught by CLion.

This commit was made with mrkct's help!
 2022-03-12 14:54:12 -08:00
Ali Mohammad Pur
23f6a00162 Kernel: Fix silly unintentional use of operator, 
Everyone's favourite activity, copy pasta, has produced yet another
confusing use of operator,; fix this and make it less confusing.
 2022-03-04 20:07:05 +01:00
Ali Mohammad Pur
4bd01b7fe9 Kernel: Add support for SA_SIGINFO 
We currently don't really populate most of the fields, but that can
wait :^)
 2022-03-04 20:07:05 +01:00
Idan Horowitz
f4875b9967 Kernel: Add Processor::try_for_each() for fallible iteration 
This API will allow users to short circuit iteration and properly
propagate errors.
 2022-02-27 20:37:57 +01:00
Idan Horowitz
011bd06053 Kernel: Set CS selector when initializing thread context on x86_64 
These are not technically required, since the Thread constructor
already sets these, but they are set on i686, so let's try and keep
consistent behaviour between the different archs.
 2022-02-27 00:38:00 +02:00
Tom
6448964485 Kernel: Implement booting all CPU cores on x86_64 
The AP boot code was partially adapted to build on x86_64 but didn't
properly jump into 64 bit mode. Furthermore, the APIC code was still
using 32 bit pointers.

Fixes #12662
 2022-02-21 17:46:02 +01:00
Marco Cutecchia
a9dbb52deb Kernel: Add 'RegisterState' & 'KString::try_create' stubs for aarch64 
The aarch64 build was broken due to missing these two things, this
commit adds two empty stubs for them
 2022-02-18 01:48:18 +01:00
Idan Horowitz
1aad64fbe4 Kernel: Workaround QEMU hypervisor.framework CPUID max leaf bug 
This works around issue #10382 until it is fixed on QEMU's side.
Patch from Anonymous.
 2022-02-11 02:45:34 +02:00
Lenny Maiorani
c6acf64558 Kernel: Change static constexpr variables to constexpr where possible 
Function-local `static constexpr` variables can be `constexpr`. This
can reduce memory consumption, binary size, and offer additional
compiler optimizations.

These changes result in a stripped x86_64 kernel binary size reduction
of 592 bytes.
 2022-02-09 21:04:51 +00:00
Andreas Kling
35e24bc774 Kernel: Move Spinlock lock/unlock functions out of line 
I don't see why these have to be inlined everywhere in the kernel.
 2022-02-03 16:11:26 +01:00