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13 commits

Author SHA1 Message Date
Idan Horowitz
e424e3b88c Kernel: Use enum instead of magic numbers for GDT descriptor types
Some of the enum members were also renamed to reflect the fact that the
segment sizes are not necessarily 32bit (64bit on x86_64).
2022-01-04 19:08:07 +02:00
Owen Smith
d36c84c331 Kernel: Reorder the 64-bit GDT a bit
Add a kernel data segment and make the user code segment come after
the data segment. We need the GDT to be in a certain order to support
the syscall and sysret instruction pair.
2021-12-28 23:15:38 +01:00
James Mintram
62d86afee9 Kernel: Add an x86 include check+error in x86/DescriptorTable.h 2021-12-01 11:22:04 -08:00
Andrew Kaster
65edc62c02 Kernel: Resolve clang-tidy readability-make-member-function-const
... In files included from Kernel/Thread.cpp or Kernel/Process.cpp

Some places the warning is suppressed, because we do not want a const
object do have non-const access to the returned sub-object.
2021-11-14 22:52:35 +01:00
Brian Gianforcaro
472454cded Kernel: Switch static_asserts of a type size to AK::AssertSize
This will provide better debug ability when the size comparison fails.
2021-09-05 20:08:57 +02:00
Gunnar Beutner
b5aad1c81d Kernel: Fix GDT and segment selectors to make userland work on x86_64
Userland faulted on the very first instruction before because the
PML4T/PDPT/etc. weren't marked as user-accessible. For some reason
x86 doesn't care about that.

Also, we need to provide an appropriate userspace stack segment
selector to iretq.
2021-06-28 22:29:28 +02:00
Gunnar Beutner
065c6c307d Kernel: Add support for interrupts on x86_64 2021-06-27 15:46:42 +02:00
Gunnar Beutner
9077c64d37 Kernel: Correct spelling mistake 2021-06-26 11:08:52 +02:00
Gunnar Beutner
f630299d49 Kernel: Add support for setting up a x86_64 GDT once in C++ land 2021-06-26 11:08:52 +02:00
Linus Groh
dbe72fd962 Everywhere: Remove empty line after function body opening curly brace 2021-04-25 20:20:00 +02:00
Brian Gianforcaro
1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00
Hendiadyoin1
61240aaad3 Kernel: Make IDT Entries their one struct
This is to make them a bit more transparent, and with a bit of Compiler
magic we get the 64-bit implementation in the same package
2021-03-21 09:35:23 +01:00
Hendiadyoin1
0d934fc991 Kernel::CPU: Move headers into common directory
Alot of code is shared between i386/i686/x86 and x86_64
and a lot probably will be used for compatability modes.
So we start by moving the headers into one Directory.
We will probalby be able to move some cpp files aswell.
2021-03-21 09:35:23 +01:00
Renamed from Kernel/Arch/x86_64/CPU.h (Browse further)