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Commits on May 25, 2022

Introduce master kernel page directory. Kernel memory allocation pgd entry is
shoily
committedMay 25, 2022

Commits on Jan 26, 2022

When allocating page(s), update all the page directories of all the active processors for kernel space. Syncrhonize between smp initialization code and page allocation code so that page directory e…
shoily
committedJan 26, 2022

Commits on Jan 20, 2022

IOAPIC enumeration, initialization from ACPI table and basic read/write for IOAPIC. Page table initialization for the whole memory (supported upto 4GB), describe each page with kpage structure and …
shoily
committedJan 20, 2022

Commits on Nov 14, 2020

Scanning for RSD PTR. Updated bootloader code so that loads kernel at a different address and don't clobber ACPI tables.
shoily
committedNov 14, 2020

Commits on Oct 28, 2020

Added per cpu specific page directory support. GDT, LDT, IDT are common among processors but TSS is per cpu specific to fascilitate switching from user mode to kernel mode. Initialized LAPIC timer …
shoily
committedOct 28, 2020

Commits on Oct 19, 2020

Calculates stack address for current AP from LAPIC id and use it call smp_finish_initialization C code. Introcuded spin lock to synchronize smp_bits and printing messages from initializing APs. Cle…
shoily
committedOct 19, 2020

Commits on Oct 11, 2020

Built SMP initialization code in a separate binary which will be included in kernel and later copied at 0x7c00 address to execute. Turned on protected mode and paging for APs. Reserved stack space …
shoily
committedOct 11, 2020

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