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[2001:1c02:1a15:3000:c218:3ff:feb5:6cc4]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b885b418028sm3233866b.26.2026.01.22.10.18.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jan 2026 10:18:21 -0800 (PST) Date: Thu, 22 Jan 2026 19:18:11 +0100 From: Roman Bogorodskiy To: Andrew Turner Cc: Mark Johnston , freebsd-virtualization@freebsd.org, freebsd-arm@freebsd.org Subject: Re: Quartz64: vmm: No vgic found Message-ID: References: <0EE0EFAA-68BF-4BA5-A42E-2D72454B3E4A@fubar.geek.nz> List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <0EE0EFAA-68BF-4BA5-A42E-2D72454B3E4A@fubar.geek.nz> X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.45 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.85)[-0.850]; MID_RHS_NOT_FQDN(0.50)[]; FORGED_SENDER(0.30)[novel@freebsd.org,bogorodskiy@gmail.com]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; DMARC_POLICY_SOFTFAIL(0.10)[freebsd.org : SPF not aligned (relaxed), DKIM not aligned (relaxed),none]; MIME_GOOD(-0.10)[text/plain]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_NEQ_ENVFROM(0.00)[novel@freebsd.org,bogorodskiy@gmail.com]; RCPT_COUNT_THREE(0.00)[4]; PREVIOUSLY_DELIVERED(0.00)[freebsd-virtualization@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; MLMMJ_DEST(0.00)[freebsd-virtualization@freebsd.org]; MISSING_XM_UA(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::62e:from] X-Rspamd-Queue-Id: 4dxq7Y6FpGz3q4X Andrew Turner wrote: > > > > On 19 Jan 2026, at 18:03, Roman Bogorodskiy wrote: > > > > Mark Johnston wrote: > > > >> 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? > > > > I was loading vmm.ko manually, i.e. by running `kldload vmm`. > > Nothing changes when I load it via vmm_load="YES" in /boot/loader.conf: > > > > vmm: No vgic found > > module_register_init: MOD_LOAD (vmm, 0xffff0000014391f0, 0) error 19 > > > > I'll test adding that to the kernel once I have an established procedure > > of building a kernel for this board. > > Can you try the patch in https://reviews.freebsd.org/D54791? It fixes an issue where the vgic driver isn’t attached if there is no ITS on the board. This appears to be the case with the Quartz64. > > Andrew This does not fix the issue for my board, behaviour remains the same. Roman