real-hw-fix #16

xamidev · 2026-03-20T16:57:54+01:00

xamidev commented

2026-03-20 16:57:54 +01:00

Fixed the PMM; it now caps at 8GB, and gets all USABLE-marked memory, instead of the biggest hole; in QEMU it was easy because USABLE block was one and big, but on real hardware it's more fragmented by ACPI_NVS and BOOTLOADER_RECLAIMABLE entries.
The framebuffer is now way faster because it is now mapped as Write-Combining, which allows burst memory access.
Also, the keyboard can now store keystrokes in a circular keyboard buffer.

Fixed the PMM; it now caps at 8GB, and gets all USABLE-marked memory, instead of the biggest hole; in QEMU it was easy because USABLE block was one and big, but on real hardware it's more fragmented by ACPI_NVS and BOOTLOADER_RECLAIMABLE entries. The framebuffer is now way faster because it is now mapped as Write-Combining, which allows burst memory access. Also, the keyboard can now store keystrokes in a circular keyboard buffer.

xamidev added 5 commits 2026-03-20 16:57:54 +01:00

Keyboard buffer + getline b77c53ae99

Fix PMM for real HW + serial lock 6a82d581fb

Use MSR to map framebuffer as WC (write-combining) = huge speed diff on real HW 424b4c4632

printf spinlock + remove DEPRECATED stuff + begin separating x86 stuff 3607a7179c

Splash 03f87723d1

xamidev merged commit 7d03a0090b into main

2026-03-20 16:58:08 +01:00

xamidev referenced this issue from a commit

2026-03-20 16:58:09 +01:00

Merge pull request 'real-hw-fix' (#16) from real-hw-fix into main

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