Re: Announcing xen/master: pvops git trees rearranged

["Marc - A. Dahlhaus [ Administration | Westermann GmbH ]" <mad@wol.de>]

Am Montag, den 21.09.2009, 12:03 +0300 schrieb Pasi Kärkkäinen:
> On Mon, Sep 21, 2009 at 10:49:03AM +0200, Marc - A. Dahlhaus [ Administration | Westermann GmbH ] wrote:
--8<--
> > title XEN pv_ops dom0
> > root (hd0,1)
> > kernel /boot/xen.gz dom0_mem=512M loglvl=all guest_loglvl=all
> > module /boot/bzImage-2.6.31-xen ro root=LABEL=ROOT earlyprintk=xen 4
> > module /boot/initramfs-2.6.31-xen
> > 
> > With this one i get no output from the kernel itself at all, i think i
> > have some things build as modules in my .config that needs to be buildin
> > for a working vga console (might be that i need to change the
> > earlyprintk param to vga) but didn't had the time to hunt the problem
> > down.
> > 
> > 
> > title XEN pv_ops dom0 with serial console
> > root (hd0,1)
> > kernel /boot/xen.gz dom0_mem=512M loglvl=all guest_loglvl=all
> > com1=9600,8n1 console=com1
> > module /boot/bzImage-2.6.31-xen ro root=LABEL=ROOT console=ttyS0,9600n8
> > earlyprintk=xen 4
> > module /boot/initramfs-2.6.31-xen
> > 
> > That's the one i used to grab the log.
> > 
> > This is a i945 based box with an Core 2 Duo E8400 and 4GB Ram installed
> > but only 2912584k usable because of an PCI-Card that supports only 32bit
> > addressing (appropriated-ram-crap). Could this be a problem? I try to
> > test again with 2GB Ram installed this evening and report if it gets any
> > further...
> > 
> 
> Here are my working grub.conf entries for pv_ops dom0:
> 
> VGA text console:
> 
> title Fedora Xen pv_ops dom0-test (2.6.31-rc5)
>         root (hd0,0)
>         kernel /xen.gz dom0_mem=1024M loglvl=all guest_loglvl=all
>         module /vmlinuz-2.6.31-rc5 ro root=/dev/mapper/vg_dom0test-lv01
>         module /initrd-2.6.31-rc5.img
> 
> 
> Serial console:
> 
> title Fedora Xen pv_ops dom0-test (2.6.31-rc5) / serial console
>         root (hd0,0)
>         kernel /xen.gz dom0_mem=1024M loglvl=all guest_loglvl=all com1=19200,8n1 console=com1
>         module /vmlinuz-2.6.31-rc5 ro root=/dev/mapper/vg_dom0test-lv01 console=hvc0 earlyprintk=xen
>         module /initrd-2.6.31-rc5.img
> 
> When using serial console with Xen you don't need to specify serial console stuff for the dom0 kernel..
> Also note the 'console=hvc0' for dom0 kernel..

Isn't the selection of hvc0 as main console supposed to work out
automatically? Looks like a bug if it isn't. Anyway thanks for the hint.
Will give it a try with a grub config adapted to yours later today.

Are there still problems related to specific CONFIG_ options which i
should deactivate in my build?

The xen related options i used (only frontends build as modules):

[mad@darkstar ~]$ grep XEN /boot/config-2.6.31-xen
CONFIG_XEN=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=8
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
CONFIG_XEN_DOM0=y
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_DOM0_PCI=y
CONFIG_MICROCODE_XEN=y
CONFIG_PCI_XEN=y
CONFIG_XEN_BLKDEV_FRONTEND=m
CONFIG_XEN_NETDEV_FRONTEND=m
CONFIG_XEN_KBDDEV_FRONTEND=m
CONFIG_HVC_XEN=y
CONFIG_XEN_FBDEV_FRONTEND=m
CONFIG_XEN_BALLOON=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XEN_BLKDEV_BACKEND=y
CONFIG_XEN_NETDEV_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=m
CONFIG_XEN_S3=y
CONFIG_ACPI_PROCESSOR_XEN=y


Marc