vernos - An operating system made in the spring.

Age	Commit message (Collapse)	Author
2024-09-15	Start of serious allocator work.	Nathan Ringo

2024-09-14	Start of a platform-independent paging interface.	Nathan Ringo

2024-09-04	Enables paging.	Nathan Ringo

2024-09-02	Split hart0_boot in half, so stacks can be switched in the middle.	Nathan Ringo

2024-09-01	Move everything over to the new organization.	Nathan Ringo

2024-08-27	[boards/qemu-virt] Adds a canary for stack overflow.	Nathan Ringo

2024-08-25	[boards/qemu-virt] Set up timer interrupts.	Nathan Ringo

2024-08-25	Sets up PMP to allow access to all of physical memory.	Nathan Ringo

2024-08-03	uncommitted changes...	Nathan Ringo

2024-02-25	[boards/qemu-virt] Adds a strict flush routine.	Nathan Ringo
	This writes to the UART, ignoring any notion of readiness. This will probably need to be reworked once a real UART driver exists that is used by this platform.
2024-02-25	[console] Adds a "strict flush" routine.	Nathan Ringo
	When this routine is set by the platform-specific code, it is run after every log message. This is a permanently temporary measure to make it easier to debug boot problems with the kernel when bringing it up on a new platform.
2024-02-25	[console] Adds the start of a console subsystem to handle kernel logs.	Nathan Ringo
	The idea is that this is an output-only facility that log messages from the log crate are written to. It has a small buffer, and relies on a log destination regularly reading from the buffer. In the next commit, platform-specific code will be able to provide a "strict flush" routine, which runs after every write to the buffer and drains the buffer. This is mainly to help kernel development, where it's not assured that the kernel will even get as far in boot as initializing its allocator. Eventually, there will be a console fd that userspace can request, wait on, and read from.
2024-02-24	Initial commit	Nathan Ringo