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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/amd64: machdep: Fix mistake in commentIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-02kernel/amd64: proc: Fix typo in commentIan Moffett
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>
2024-07-02kernel/amd64: Add missing copyrightIan 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/amd64: pmap: Add pmap_destroy_vas()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-29kernel/amd64: lapic: Improve accuracy of commentIan 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>
2024-06-29kernel/amd64: proc: Update outdated commentIan Moffett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>
2024-06-28kernel/amd64: Convert kernel stack base to vaddrIan Moffett
This fixes an issue where the TSS kernel stack base is a physical address instead of being a virtual address like it's supposed to. 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/amd64: pmap: Add function to create new VASIan 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>
2024-06-13kernel/amd64: pmap: Fixup and improve consistencyIan Moffett
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>
2024-06-08kernel/amd64: Prepare for schedulerIan 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>
2024-06-08kernel/amd64: lapic: Don't test register_timer()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-08kernel/amd64: lapic: Serialize lapic_timer_init()Ian 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: lapic: Assign timer to IST_SCHEDIan Moffett
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>
2024-06-06kernel/amd64: isa: Add i8254 driverIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-05kernel/amd64: Add initial LAPIC codeIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-04kernel/amd64: spectre: Disable IBRS by defaultIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-04kernel/amd64: Add I/O APIC driverIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-04kernel/amd64: acpi: Support parsing MADTIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-04kernel/amd64: Support IBRSIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-04kernel/amd64: trap: Add logging for debuggingIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-04kernel/amd64: Add HPET driverIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-06-04project: Initial commitIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
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