[DragonFlyBSD - Bug #3310] (New) NVMM+QEMU fail to boot with UEFI: Mem Assist Failed [gpa=0xfffffff0]

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #3310 has been reported by liweitianux.

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Bug #3310: NVMM+QEMU fail to boot with UEFI: Mem Assist Failed [gpa=0xfffffff0]
http://bugs.dragonflybsd.org/issues/3310

* Author: liweitianux
* Status: New
* Priority: Normal
* Target version: 6.4
* Start date: 2022-01-09
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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



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