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2024-07-09kernel: Add PCI driverIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-07kernel/amd64: Add serial debug loggingIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-06kernel/amd64: Add 8250 UART driverIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-04kernel/amd64: Add syscall support + SYS_exitIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-02kernel: proc: Remove PROC_INEXEC flagIan Moffett
This commit removes handling of the PROC_INEXEC flag as md_td_kick() takes care of the transfer to user mode in a cleaner way. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-02kernel/amd64: Handle the user GS segment registerIan Moffett
This commit introduces usage of swapgs to switch out the GS register with the user GS register. An md_td_kick() function is also introduced to start up user threads. The this_cpu() function uses the GS register to read the current CPU structure using a new "self" field. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-02kernel/amd64: Add INTRENTRY() and TRAPENTRY()Ian Moffett
Add macros that perform certain operations before invoking the actual handler. This will be useful in the future for more complicated operations that need to be done before the handler is ran. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-01kernel: exec: Add execve()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-01kernel/amd64: proc: Add stack init func for execIan Moffett
Add stack initialization code for exec functions. This new code initializes values on the stack, including argc, argv, and the auxiliary vector. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-30kernel/amd64: proc: Add setregs()Ian Moffett
This function will be useful for things like exec in order to setup registers which are machine dependent. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-30kernel: sched: Add exit1()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-30kernel: sched: Mark sched_enter() as __deadIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-30kernel: cdefs: Add __deadIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-30kernel/amd64: pmap: Add pmap_destroy_vas()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-29kernel/amd64: lapic: Add support for IPIsIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-28kernel: elf: Add ELF64 loaderIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-28kernel: Add sys/elf.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-28kernel: vfs: Add vnode refcountIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-28kernel/amd64: Focus md_td_init() to fork MD codeIan Moffett
Rename md_td_init() to md_fork() and change up what it does to keep things as simple as possible. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-28kernel/amd64: Make splraise() return previous IPLIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-25kernel: vfs: Add getattr vopIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-23kernel: Add fork1()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-23kernel/amd64: Add machdep thread init functionIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-23kernel: sched: Add PCB and context switchingIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-23kernel/amd64: gdt: Add user CS/DS definesIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-23kernel/amd64: pmap: Add function to create new VASIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-23kernel: vm: Add g_kvas for kernel VASIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-21kernel: cdefs: Fixup commentIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-20kernel/amd64: intr: Add splraise/splx supportIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-20kernel: queue: Add sys/queue.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-19kernel: Add initramfs and initial VFS codeIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-19kernel: lib: Add strncmp()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-19kernel: types: Add mode_tIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-13kernel: string: Add strcmp()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-11kernel: Add sys/atomic.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-11kernel: types: Add off_tIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-10kernel: vm: Add initial code for MI layerIan Moffett
Add initial code for the machine independent virtual memory layer Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-09kernel/amd64: pmap: Add initial pmap codeIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-09kernel: types: Add paddr_t and vaddr_tIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-09kernel: param: Expand supported bit widthIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-09kernel: cdefs: Cleanup commentIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-08kernel/amd64: Prepare for schedulerIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-08kernel: types: Add pid_tIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-08kernel: Add __static_assert macroIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-08kernel/amd64: Pass CPU info to cpu_startup()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-08kernel/amd64: lapic: Add End-Of-Interrupt helperIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-07kernel: Add __cacheline_aligned macroIan Moffett
This commit introduces a "__cacheline_aligned" macro which aligns data by the cache line size (COHERENCY_UNIT bytes). This is useful for heavily contended locks. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-06kernel/amd64: tss: Add support for TSSIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-06kernel/amd64: lapic: Add support for LAPIC timerIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-06kernel/amd64: intr: Add intr_alloc_vector()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
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