![]() ![]() Mainline edk2 is currently unable to boot any Windows images due to some required features being removed as they aren't compatible with KVM (I don't quite get it - UEFI for aarch64 virt is supposed to be for qemu in general, not exclusive to KVM.), however I actually have a fork with these features restored, available at. Note that a physical frame buffer is required PixelBltOnly is not supported. PixelFormat must be PixelBlueGreenRedReserved8BitPerColor. PixelsPerScanLine must be equal to HorizontalResolution. Per, Windows currently requires a linear framebuffer to be exposed through the UEFI Graphics Output Protocol:įor integrated displays, HorizontalResolution and VerticalResoluton must be the native resolution of the panel.įor External displays, HorizontalResolution and VerticalResoluton must be the native resolution of the display, or, if this is not supported, then the highest values supported by both the video adapter and the connected display. php?p=426768# p426768 The same instructions cause the previously mentioned exception loop when tried with the Insider builds. Detailed instructions for booting the leaked builds are available here: https:/ /viewtopic. This is able to boot the leaked Windows Server 2016 beta builds 14282, 1437, but not 14901 or any of the Windows 10 Insider builds, due to an exception loop very similar to that seen when trying to run SBSA-ACS.Īlso, the only storage option Windows can actually read and boot from is USB mass storage over EHCI - anything else is either lacking drivers (virtio-scsi and the various emulated LSI Logic adapters) or fails to start due to a resource conflict (AHCI, UAS, USB mass storage over XHCI). Mainline edk2 is currently unable to boot any Windows images due to some required features being removed as they aren't compatible with KVM (I don't quite get it - UEFI for aarch64 virt is supposed to be for qemu in general, not exclusive to KVM.), however I actually have a fork with these features restored, available at https:/ /github. Also, IIRC the Gop->Blt() handler of virtio-gpu is only available while UEFI Boot Services are active (before ExitBootServices() is called, which is something the Windows boot manager does very early), so even if Microsoft tried to implement Gop->Blt() support in the MSBDA driver, it couldn't be used with virtio-gpu, as its Gop->Blt() is not available at run time. ![]() The virtio-gpu driver uses PixelBltOnly, which Windows explicitly doesn't support. The frame buffer must continue to be scanned out after boot services have exited." When execution is handed off to a UEFI boot application, the firmware boot manager and firmware must not use the frame buffer for any purpose. PixelFormat must be PixelBlueGreenR edReserved8BitP erColor. PixelsPerSc anLine must be equal to HorizontalResol ution. Specific frame buffer requirements are:įor integrated displays, HorizontalResol ution and VerticalResoluton must be the native resolution of the panel.įor External displays, HorizontalResol ution and VerticalResoluton must be the native resolution of the display, or, if this is not supported, then the highest values supported by both the video adapter and the connected display. ![]() "Windows requires the Graphics Output Protocol (GOP). ![]() com/en- us/windows- hardware/ drivers/ bringup/ uefi-requiremen ts-that- apply-to- all-windows- platforms, Windows currently requires a linear framebuffer to be exposed through the UEFI Graphics Output Protocol: Virtio-gpu-pci will not work for booting Windows. ![]()
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