3 Commits

Author	SHA1	Message	Date
Justin C. Miller	257158fd95	[cpu] Add rdpid, rdtscp, and invariant tsc cpu features ... These are not used yet, but added to the features table as optional.	2021-02-19 20:50:22 -08:00
Justin C. Miller	aae18fd035	[boot][kernel] Replace frame allocator with bitmap-based one ... The previous frame allocator involved a lot of splitting and merging linked lists and lost all information about frames while they were allocated. The new allocator is based on an array of descriptor structures and a bitmap. Each memory map region of allocatable memory becomes one or more descriptors, each mapping up to 1GiB of physical memory. The descriptors implement two levels of a bitmap tree, and have a pointer into the large contiguous bitmap to track individual pages.	2021-01-22 00:16:01 -08:00
Justin C. Miller	c3a0266354	[cpu] Split cpuid validation into separate lib ... In order to allow the bootloader to do preliminary CPUID validation while UEFI is still handling displaying information to the user, split most of the kernel's CPUID handling into a library to be used by both kernel and boot.	2021-01-18 13:49:59 -08:00