6 commits

Author	SHA1	Message	Date
Andreas Kling	249d6a490d	Kernel: Add read_gs_value() and write_gs_value() ... Co-authored-by: Tom <tomut@yahoo.com>	2021-08-29 12:26:40 +02:00
Gunnar Beutner	9964c106ad	Kernel: Disambiguate instruction size for mov in read_gs_ptr ... Previously we allowed using immediate values here which is ambiguous as to which specific mov instruction the compiler should choose.	2021-08-11 12:34:47 +02:00
Gunnar Beutner	741ca5477c	Kernel: Fix {read,write}_gs_ptr() for 64-bit addresses	2021-07-18 17:31:13 +02:00
Gunnar Beutner	52f9aaa823	Kernel: Use the GS segment for the per-CPU struct ... Right now we're using the FS segment for our per-CPU struct. On x86_64 there's an instruction to switch between a kernel and usermode GS segment (swapgs) which we could use. This patch doesn't update the rest of the code to use swapgs but it prepares for that by using the GS segment instead of the FS segment.	2021-07-02 23:33:17 +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
Hendiadyoin1	7ca3d413f7	Kernel: Pull apart CPU.h ... This does not add any functional changes	2021-06-24 00:38:23 +02:00