Date: Tue, 4 Aug 2020 09:08:11 +0100 From: Ottavio Caruso <ottavio2006-usenet2012@yahoo.com> To: freebsd-hackers@freebsd.org Subject: [xpost,repost] VGA false positive in dmesg? Message-ID: <rgb51b$10i4$1@ciao.gmane.io>
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Hi,
[originally mailed to freebsd-questions, but I didn't get any feedback
over there]
I've launched a FreeBSD 12.1 instance in qemu (pay attention to "-vga
none"). Host is Linux:
qemu-system-x86_64 \
-drive if=virtio,file=/home/oc/VM/img/freebsd.image,index=0,media=disk \
-M q35,accel=kvm -m 250M -cpu host -smp $(nproc) \
-nic user,hostfwd=tcp:127.0.0.1:5554-:22,model=virtio-net-pci \
-daemonize -display none -vga none \
-serial mon:telnet:127.0.0.1:6664,server,nowait \
In the guest:
oc@FreeBSD:~ % pciconf -vl
hostb0@pci0:0:0:0: class=0x060000 card=0x11001af4 chip=0x29c08086
rev=0x00 hdr=0x00
vendor = 'Intel Corporation'
device = '82G33/G31/P35/P31 Express DRAM Controller'
class = bridge
subclass = HOST-PCI
virtio_pci0@pci0:0:1:0: class=0x020000 card=0x00011af4 chip=0x10001af4
rev=0x00 hdr=0x00
vendor = 'Red Hat, Inc.'
device = 'Virtio network device'
class = network
subclass = ethernet
virtio_pci1@pci0:0:2:0: class=0x010000 card=0x00021af4 chip=0x10011af4
rev=0x00 hdr=0x00
vendor = 'Red Hat, Inc.'
device = 'Virtio block device'
class = mass storage
subclass = SCSI
virtio_pci2@pci0:0:3:0: class=0x010000 card=0x00021af4 chip=0x10011af4
rev=0x00 hdr=0x00
vendor = 'Red Hat, Inc.'
device = 'Virtio block device'
class = mass storage
subclass = SCSI
isab0@pci0:0:31:0: class=0x060100 card=0x11001af4 chip=0x29188086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB (ICH9) LPC Interface Controller'
class = bridge
subclass = PCI-ISA
ahci0@pci0:0:31:2: class=0x010601 card=0x11001af4 chip=0x29228086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller
[AHCI mode]'
class = mass storage
subclass = SATA
none0@pci0:0:31:3: class=0x0c0500 card=0x11001af4 chip=0x29308086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801I (ICH9 Family) SMBus Controller'
class = serial bus
subclass = SMBus
However, in dmesg:
oc@FreeBSD:~ % dmesg | grep -i vga
VT(vga): text 80x25
vtvga0: <VT VGA driver> on motherboard
vga0: <Generic ISA VGA> at port 0x3b0-0x3bb iomem 0xb0000-0xb7fff
pnpid PNP0900 on isa0
I don't know how to interpret this output. I don't think it's a qemu
issue, because I've done the same with NetBSD and OpenBSD guests and
there's no trace of vga in their dmesg.
Thanks
--
Ottavio Caruso
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
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