Peter Ross 9d94c85b6a Kernel: Use IO init method for Bochs emulated VGA adapter ... In short: QEMU supports both Memory-Mapped-IO and classic IO methods for controlling the emulated VGA device. Bochs and VirtualBox only support the classic IO method. An excellent write up on the history of these interfaces can be found here: https://www.kraxel.org/blog/2018/10/qemu-vga-emulation-and-bochs-display The IO method was how things were done originally in SerenityOS. Commit 6a728e2d76 introduced the MMIO method for all devices, breaking Bochs and VirtualBox compatibility. Later in commit 6a9dc5562d the classic IO method was restored for VirtualBox graphics adapters. QEMU and Bochs use the same PCI VID/DID (0x1234/0x1111) for the emulated VGA adapter. To distinguish betwen QEMU and Bochs we use the PCI revision ID field (0=Bochs, 2=QEMU).		2022-02-24 09:08:04 +02:00
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GraphicsAdapter.cpp	Kernel: Use IO init method for Bochs emulated VGA adapter	2022-02-24 09:08:04 +02:00
GraphicsAdapter.h	Kernel: Add ioctl to get the EDID from a framebuffer	2022-01-23 22:45:21 +00:00