Issue #3310 has been updated by marietto.
Hello. I tried using the -bios parameter to add the efi code,like this : qemu-system-x86_64 \ -machine type=q35,accel=nvmm \ -smp cpus=1 -m 8G \ -bios /home/marietto/Desktop/Files/Virt/OVMF/OVMF.fd \ -drive file=/mnt/dk26/bhyve/impish-cuda-11-4-nvidia-470.img,if=none,id=disk0 \ -device virtio-blk-pci,drive=disk0 \ -netdev user,id=net0,hostfwd=tcp:127.0.0.1:6022-:22 \ -device virtio-net-pci,netdev=net0 \ -object rng-random,id=rng0,filename=/dev/urandom \ -device virtio-rng-pci,rng=rng0 \ -display curses \ -vga qxl \ -spice addr=127.0.0.1,port=5900,ipv4=on,disable-ticketing=on,seamless-migration=on but it didn't work : qemu-system-x86_64: NVMM: Unexpected RDMSR 0x3a, ignored qemu-system-x86_64: NVMM: Unexpected WRMSR 0x3a [val=0x1], ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0x140, ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0xce, ignored qemu-system-x86_64: NVMM: Unexpected WRMSR 0x140 [val=0x0], ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0x64e, ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0x34, ignored and this : qemu-system-x86_64 \ -machine type=q35,accel=nvmm \ -smp cpus=1 -m 8G \ -bios /home/marietto/Desktop/Files/Virt/OVMF/QEMU_UEFI_CODE-x86_64.fd \ -drive file=/mnt/dk26/bhyve/impish-cuda-11-4-nvidia-470.img,if=none,id=disk0 \ -device virtio-blk-pci,drive=disk0 \ -netdev user,id=net0,hostfwd=tcp:127.0.0.1:6022-:22 \ -device virtio-net-pci,netdev=net0 \ -object rng-random,id=rng0,filename=/dev/urandom \ -device virtio-rng-pci,rng=rng0 \ -display curses \ -vga qxl \ -spice addr=127.0.0.1,port=5900,ipv4=on,disable-ticketing=on,seamless-migration=on qemu: could not load PC BIOS '/home/marietto/Desktop/Files/Virt/OVMF/QEMU_UEFI_CODE-x86_64.fd' with this : OVMF_CODE.fd = qemu-system-x86_64: NVMM: Unexpected RDMSR 0x3a, ignored qemu-system-x86_64: NVMM: Unexpected WRMSR 0x3a [val=0x1], ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0x140, ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0xce, ignored qemu-system-x86_64: NVMM: Unexpected WRMSR 0x140 [val=0x0], ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0x64e, ignored qemu-system-x86_64: NVMM: Unexpected RDMSR 0x34, ignored with this : ---------------------------------------- Bug #3310: NVMM+QEMU fail to boot with UEFI: Mem Assist Failed [gpa=0xfffffff0] http://bugs.dragonflybsd.org/issues/3310#change-14243 * Author: liweitianux * Status: In Progress * Priority: Normal * Category: nvmm * Target version: 6.4 * Start date: 2022-01-09 ---------------------------------------- NVMM+QEMU fail to boot with UEFI, for example: <pre> % qemu-system-x86_64 \ -boot menu=on -display sdl -accel nvmm \ -drive file=OVMF_CODE.fd,if=pflash,format=raw,readonly=on \ -drive file=OVMF_VARS.fd,if=pflash,format=raw NetBSD Virtual Machine Monitor accelerator is operational qemu-system-x86_64: NVMM: Mem Assist Failed [gpa=0xfffff000] qemu-system-x86_64: NVMM: Failed to execute a VCPU. </pre> The UEFI firmware can be obtained by installing the @uefi-edk2-qemu-x86_64@ package or by downloading from: https://leaf.dragonflybsd.org/~aly/uefi/ First reported by Mario Marietto and confirmed by me, see: https://lists.dragonflybsd.org/pipermail/users/2022-January/404898.html -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account