Date: Thu, 24 Jan 2019 13:45:10 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 229852] [PATCH] bhyve: IOMMU (Intel VTd) PCI passthrough attempt locks up some systems Message-ID: <bug-229852-27103-RCtgSAod7S@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-229852-27103@https.bugs.freebsd.org/bugzilla/> References: <bug-229852-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229852 --- Comment #6 from Niels Bakker <niels=3Dfreebsd@bakker.net> --- (In reply to Marcelo Araujo from comment #5) > 1) bhyve command line I'm not sure tbh - created and started it via vm-bhyve and it rewrites its cmdline. Its config file contains these lines, plus others that deal with storage and vnet: --- loader=3D"bhyveload" cpu=3D2 memory=3D4G passthru0=3D"0/31/6" bhyve_options=3D"-S" --- > 2) CPU Type CPU: Intel(R) Celeron(R) CPU 3865U @ 1.80GHz (1800.08-MHz K8-class CPU) Origin=3D"GenuineIntel" Id=3D0x806e9 Family=3D0x6 Model=3D0x8e Steppi= ng=3D9 This is a Kaby Lake CPU (same class as 7th gen Core) from 2017. > 3) Guest OS USED guest# uname -srv FreeBSD 11.2-RELEASE-p7 FreeBSD 11.2-RELEASE-p7 #0: Tue Dec 18 08:29:33 UTC 2018 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC=20 > 4) Device used via passthrough --- host# grep ^ppt /boot/loader.conf pptdevs=3D"0/31/6 2/0/0" host# pciconf -lv ppt1@pci0:0:31:6 ppt1@pci0:0:31:6: class=3D0x020000 card=3D0x00008086 chip=3D0x156f808= 6 rev=3D0x21 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'Ethernet Connection I219-LM' class =3D network subclass =3D ethernet --- guest# pciconf -lv em0 em0@pci0:0:6:0: class=3D0x020000 card=3D0x00008086 chip=3D0x156f8086 rev=3D= 0x21 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'Ethernet Connection I219-LM' class =3D network subclass =3D ethernet --- (The second device, some WiFi chipset, isn't passed through to any VM, and there is no FreeBSD driver for it anyway) As said, without the patch the system dies an immediate death as soon as the bhyve with passthrough is started. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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