Date: Mon, 19 Jan 2026 10:16:28 -0500 From: Mark Johnston <markj@freebsd.org> To: Roman Bogorodskiy <novel@freebsd.org> Cc: freebsd-virtualization@freebsd.org, freebsd-arm@freebsd.org Subject: Re: Quartz64: vmm: No vgic found Message-ID: <aW5KzB0F1QhKf2Om@nuc> In-Reply-To: <aWvEs2_2aN0Gz67l@tulp> References: <aWkm8jwP6SRvT7iW@tulp> <aWqf5qNu_IlMMiEt@nuc> <aWvEs2_2aN0Gz67l@tulp>
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On Sat, Jan 17, 2026 at 06:19:47PM +0100, Roman Bogorodskiy wrote: > Mark Johnston wrote: > > > On Thu, Jan 15, 2026 at 06:42:10PM +0100, Roman Bogorodskiy wrote: > > > But bhyve does not start: > > > [...] > > > Does the board need something in addition to GICv3 that is missing that > > > is needed to make vmm(4) work, or is that a configuration or vmm(4) > > > issue? > > > > The vgic driver is refusing to attach, apparently because we don't > > detect virtualization support when probing the controller. When booting > > from a FDT we look for an "interrupts" property to determine this, but > > it's not clear to me whether that's totally right. Can you share the > > device tree you're using with this board? > > Not sure what's the right way to share the device tree, so I used the > command I found on wiki (https://wiki.freebsd.org/FlattenedDeviceTree), > that is: sysctl -b hw.fdt.dtb | dtc -I dtb > > It's lengthy, so I uploaded it here: > > https://people.freebsd.org/~novel/misc/quartz64_devicetree.txt So, from what I can tell, gic_v3_ofw_bus_attach() should be attaching a child vgic device. Are you loading vmm.ko after the kernel has booted? Does anything change if you load it from loader.conf, or compile vmm into the kernel? > And some more details. Until today I was using u-boot, > sysutils/u-boot-quartz64-a specifically. > > Then I tried using Tianocore EDK2. Apparently, it supports three modes > for devices: > > - ACPI > - ACPI + devicetree > - Devicetree > > The devicetree mode behaves the same way as u-boot, i.e. the vgic fails > to attach. > > In the ACPI (and ACPI + devicetree) mode I can actually start a bhyve > VM. > > However, in this mode Ethernet interface is not detected. > > Earlier it was available as: > > eqos0: <DesignWare EQOS Gigabit ethernet> mem 0xfe010000-0xfe01ffff irq 28,29 on ofwbus0 > > and now it's completely missing, though I can see it in the device tree. > Does it get confused by ACPI presence? I think the eqos driver has no acpi bus support.home | help
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