Re: [Fedora-xen] How to use xen-pciback
On 2011-05-09 08:45, Pasi Kärkkäinen wrote: On Fri, May 06, 2011 at 04:18:14PM +0200, Robin Axelsson wrote: On 2011-05-06 08:03, Pasi Kärkkäinen wrote: On Thu, May 05, 2011 at 07:48:36PM +0200, Robin Axelsson wrote: Hi, I have compiled Jeremy's kernel on Fedora 14 and it turned out that xen-pciback is compiled into the kernel as a module. So I made a xen-pciback.conf file in /etc/modprobe.d. The problem is that I have to get modprobe to load before the drivers to the PCI devices I want to hide are loaded. So my question is how do I locate the drivers and find the points in the boot scripts where I can put the modprobe so that it is loaded before them? I tried lsmod and modinfo but they don't give much information. I only managed to find the driver for the Intel EXPI9400PT adapter e1000e. I want to hide the graphics adapter (Radeon 5450), Two USB2.0 ports, the Intel adapter, the USB3.0 controller and the Audio device, their assignments on machine are as follows: pci__00_02_0 (GPU) pci__00_12_0 (USB 2.0 should give 2 ports) pci__00_14_2 (Audio device) pci__00_0a_0 (Intel Adapter) pci__00_09_0 (USB 3.0 Interface) but the question is where can I locate their drivers and how can I tap into the boot sequence so that the xen-pciback driver is loaded beforehand? The page http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module gives no information about this. It mentions something about install skge ... but it doesn't say where this line is to be put and how you figure out that skge is the driver to be disabled. You probably should add the modules to be loaded from initrd image. Are you using mkinitrd? If yes, there's an option to preload modules.. -- Pasi I issued the command mkinitrd -v -f --preload xen-pciback /boot/initramfs-2.6.32.39.img 2.6.32.39 and I noticed that the initramfs image file generated is considerably smaller than the initramfs imagefile generated by dracut. The dracut file is a bit over 80 MB whereas the new one is less than 8 MB. But the preload doesn't load the xen-pciback module. After the reboot when I list assignable PCI devices using xm, Xen returns nothing. If I issue 'modprobe xen-pciback' and then list the devices using xm I get one entry. What's wrong? Hmm.. Is it possible that the other xen-related required modules are not yet loaded at that point, so loading xen-pciback fails? You could always extract initramfs-2.6.32.39.img and read the 'init' script in it and see what it's trying to do.. -- Pasi Perhaps you know how to extract the initramfs? I'm unable to find the compression headers and I'm not sure what headers to look for. In the first step I tried to locate the gzip header: # grep -a -b --only-matching $'\x8B'$'\x08' \boot\initramfs-`uname -r`.img (offset1): (pattern) ... (offsetn): (pattern) # dd if=/boot/intramfs-`uname -r`.img bs=1 skip=(offset1) | gunzip myimagefile but I'm unable to get to the cpio file. I tried once again grepping for compression headers in myimagefile but I couldn't find anything. It appears not to be compressed with zx, bzip2 or gzip. I could not use cpio on the file directly either. Robin. I have set up the machine to init level 3 in the /etc/inittab (my install of F14 have no upstart targets). The xen-pciback module seems to be working. Something is wrong with the onboard sound chip. No drivers have ever successfully initiated it, neither in Windows nor Linux. So it is marked as an assignable device when looking it up with xm. Regards Robin. -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen . -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen . -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] How to use xen-pciback
On Mon, May 09, 2011 at 01:48:03PM +0200, Robin Axelsson wrote: On 2011-05-09 08:45, Pasi Kärkkäinen wrote: On Fri, May 06, 2011 at 04:18:14PM +0200, Robin Axelsson wrote: On 2011-05-06 08:03, Pasi Kärkkäinen wrote: On Thu, May 05, 2011 at 07:48:36PM +0200, Robin Axelsson wrote: Hi, I have compiled Jeremy's kernel on Fedora 14 and it turned out that xen-pciback is compiled into the kernel as a module. So I made a xen-pciback.conf file in /etc/modprobe.d. The problem is that I have to get modprobe to load before the drivers to the PCI devices I want to hide are loaded. So my question is how do I locate the drivers and find the points in the boot scripts where I can put the modprobe so that it is loaded before them? I tried lsmod and modinfo but they don't give much information. I only managed to find the driver for the Intel EXPI9400PT adapter e1000e. I want to hide the graphics adapter (Radeon 5450), Two USB2.0 ports, the Intel adapter, the USB3.0 controller and the Audio device, their assignments on machine are as follows: pci__00_02_0 (GPU) pci__00_12_0 (USB 2.0 should give 2 ports) pci__00_14_2 (Audio device) pci__00_0a_0 (Intel Adapter) pci__00_09_0 (USB 3.0 Interface) but the question is where can I locate their drivers and how can I tap into the boot sequence so that the xen-pciback driver is loaded beforehand? The page http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module gives no information about this. It mentions something about install skge ... but it doesn't say where this line is to be put and how you figure out that skge is the driver to be disabled. You probably should add the modules to be loaded from initrd image. Are you using mkinitrd? If yes, there's an option to preload modules.. -- Pasi I issued the command mkinitrd -v -f --preload xen-pciback /boot/initramfs-2.6.32.39.img 2.6.32.39 and I noticed that the initramfs image file generated is considerably smaller than the initramfs imagefile generated by dracut. The dracut file is a bit over 80 MB whereas the new one is less than 8 MB. But the preload doesn't load the xen-pciback module. After the reboot when I list assignable PCI devices using xm, Xen returns nothing. If I issue 'modprobe xen-pciback' and then list the devices using xm I get one entry. What's wrong? Hmm.. Is it possible that the other xen-related required modules are not yet loaded at that point, so loading xen-pciback fails? You could always extract initramfs-2.6.32.39.img and read the 'init' script in it and see what it's trying to do.. -- Pasi Perhaps you know how to extract the initramfs? I'm unable to find the compression headers and I'm not sure what headers to look for. In the first step I tried to locate the gzip header: They're usually gzipped cpio archives. So something like this should work: mkdir temp cd temp zcat /boot/initramfs-version.img | cpio -i -d -- Pasi # grep -a -b --only-matching $'\x8B'$'\x08' \boot\initramfs-`uname -r`.img (offset1): (pattern) ... (offsetn): (pattern) # dd if=/boot/intramfs-`uname -r`.img bs=1 skip=(offset1) | gunzip myimagefile but I'm unable to get to the cpio file. I tried once again grepping for compression headers in myimagefile but I couldn't find anything. It appears not to be compressed with zx, bzip2 or gzip. I could not use cpio on the file directly either. Robin. I have set up the machine to init level 3 in the /etc/inittab (my install of F14 have no upstart targets). The xen-pciback module seems to be working. Something is wrong with the onboard sound chip. No drivers have ever successfully initiated it, neither in Windows nor Linux. So it is marked as an assignable device when looking it up with xm. Regards Robin. -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen . -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen . -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] How to use xen-pciback
On Thu, May 05, 2011 at 07:48:36PM +0200, Robin Axelsson wrote: Hi, I have compiled Jeremy's kernel on Fedora 14 and it turned out that xen-pciback is compiled into the kernel as a module. So I made a xen-pciback.conf file in /etc/modprobe.d. The problem is that I have to get modprobe to load before the drivers to the PCI devices I want to hide are loaded. So my question is how do I locate the drivers and find the points in the boot scripts where I can put the modprobe so that it is loaded before them? I tried lsmod and modinfo but they don't give much information. I only managed to find the driver for the Intel EXPI9400PT adapter e1000e. I want to hide the graphics adapter (Radeon 5450), Two USB2.0 ports, the Intel adapter, the USB3.0 controller and the Audio device, their assignments on machine are as follows: pci__00_02_0 (GPU) pci__00_12_0 (USB 2.0 should give 2 ports) pci__00_14_2 (Audio device) pci__00_0a_0 (Intel Adapter) pci__00_09_0 (USB 3.0 Interface) but the question is where can I locate their drivers and how can I tap into the boot sequence so that the xen-pciback driver is loaded beforehand? The page http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module gives no information about this. It mentions something about install skge ... but it doesn't say where this line is to be put and how you figure out that skge is the driver to be disabled. You probably should add the modules to be loaded from initrd image. Are you using mkinitrd? If yes, there's an option to preload modules.. -- Pasi I have set up the machine to init level 3 in the /etc/inittab (my install of F14 have no upstart targets). The xen-pciback module seems to be working. Something is wrong with the onboard sound chip. No drivers have ever successfully initiated it, neither in Windows nor Linux. So it is marked as an assignable device when looking it up with xm. Regards Robin. -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] How to use xen-pciback
On 2011-05-06 08:03, Pasi Kärkkäinen wrote: On Thu, May 05, 2011 at 07:48:36PM +0200, Robin Axelsson wrote: Hi, I have compiled Jeremy's kernel on Fedora 14 and it turned out that xen-pciback is compiled into the kernel as a module. So I made a xen-pciback.conf file in /etc/modprobe.d. The problem is that I have to get modprobe to load before the drivers to the PCI devices I want to hide are loaded. So my question is how do I locate the drivers and find the points in the boot scripts where I can put the modprobe so that it is loaded before them? I tried lsmod and modinfo but they don't give much information. I only managed to find the driver for the Intel EXPI9400PT adapter e1000e. I want to hide the graphics adapter (Radeon 5450), Two USB2.0 ports, the Intel adapter, the USB3.0 controller and the Audio device, their assignments on machine are as follows: pci__00_02_0 (GPU) pci__00_12_0 (USB 2.0 should give 2 ports) pci__00_14_2 (Audio device) pci__00_0a_0 (Intel Adapter) pci__00_09_0 (USB 3.0 Interface) but the question is where can I locate their drivers and how can I tap into the boot sequence so that the xen-pciback driver is loaded beforehand? The page http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module gives no information about this. It mentions something about install skge ... but it doesn't say where this line is to be put and how you figure out that skge is the driver to be disabled. You probably should add the modules to be loaded from initrd image. Are you using mkinitrd? If yes, there's an option to preload modules.. -- Pasi I issued the command mkinitrd -v -f --preload xen-pciback /boot/initramfs-2.6.32.39.img 2.6.32.39 and I noticed that the initramfs image file generated is considerably smaller than the initramfs imagefile generated by dracut. The dracut file is a bit over 80 MB whereas the new one is less than 8 MB. But the preload doesn't load the xen-pciback module. After the reboot when I list assignable PCI devices using xm, Xen returns nothing. If I issue 'modprobe xen-pciback' and then list the devices using xm I get one entry. What's wrong? I have set up the machine to init level 3 in the /etc/inittab (my install of F14 have no upstart targets). The xen-pciback module seems to be working. Something is wrong with the onboard sound chip. No drivers have ever successfully initiated it, neither in Windows nor Linux. So it is marked as an assignable device when looking it up with xm. Regards Robin. -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen . -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
[Fedora-xen] How to use xen-pciback
Hi, I have compiled Jeremy's kernel on Fedora 14 and it turned out that xen-pciback is compiled into the kernel as a module. So I made a xen-pciback.conf file in /etc/modprobe.d. The problem is that I have to get modprobe to load before the drivers to the PCI devices I want to hide are loaded. So my question is how do I locate the drivers and find the points in the boot scripts where I can put the modprobe so that it is loaded before them? I tried lsmod and modinfo but they don't give much information. I only managed to find the driver for the Intel EXPI9400PT adapter e1000e. I want to hide the graphics adapter (Radeon 5450), Two USB2.0 ports, the Intel adapter, the USB3.0 controller and the Audio device, their assignments on machine are as follows: pci__00_02_0 (GPU) pci__00_12_0 (USB 2.0 should give 2 ports) pci__00_14_2 (Audio device) pci__00_0a_0 (Intel Adapter) pci__00_09_0 (USB 3.0 Interface) but the question is where can I locate their drivers and how can I tap into the boot sequence so that the xen-pciback driver is loaded beforehand? The page http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module gives no information about this. It mentions something about install skge ... but it doesn't say where this line is to be put and how you figure out that skge is the driver to be disabled. I have set up the machine to init level 3 in the /etc/inittab (my install of F14 have no upstart targets). The xen-pciback module seems to be working. Something is wrong with the onboard sound chip. No drivers have ever successfully initiated it, neither in Windows nor Linux. So it is marked as an assignable device when looking it up with xm. Regards Robin. -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
