Re: [Fedora-xen] DomU console driver not works for Fedora17 in HVM mode with Xen 4.1.2
On Thu, 23 Aug 2012, Wei Xu wrote: Thanks for your reply. I have tried the method but it looks still can't work, there is no hvc0 device file in my /dev directory, is that the root cause? Reading again the previous message, it is clear that you are still using xm/xend as toolstack to create VMs. Unfortunately xend doesn't support PV consoles for HVM guests, you need to use the new xl toolstack if you'd like to use that functionality. See: http://wiki.xen.org/wiki/XL -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] DomU console driver not works for Fedora17 in HVM mode with Xen 4.1.2
Thanks，i'll try it On Thursday, August 23, 2012, Stefano Stabellini wrote: On Thu, 23 Aug 2012, Wei Xu wrote: Thanks for your reply. I have tried the method but it looks still can't work, there is no hvc0 device file in my /dev directory, is that the root cause? Reading again the previous message, it is clear that you are still using xm/xend as toolstack to create VMs. Unfortunately xend doesn't support PV consoles for HVM guests, you need to use the new xl toolstack if you'd like to use that functionality. See: http://wiki.xen.org/wiki/XL -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] DomU console driver not works for Fedora17 in HVM mode with Xen 4.1.2
Thanks for your reply. I have tried the method but it looks still can't work, there is no hvc0 device file in my /dev directory, is that the root cause? On Mon, Aug 20, 2012 at 11:47 PM, Stefano Stabellini stefano.stabell...@eu.citrix.com wrote: On Mon, 20 Aug 2012, Konrad Rzeszutek Wilk wrote: On Mon, Aug 20, 2012 at 09:39:56PM +0800, Wei Xu wrote: Hi All, I'm try to set up and verify Xen console driver base on Fedora 17 and Xen 4.1.2 with hvm guest mode, i searched around and got a link, it give steps both for PV and HVM mode, I followed the HVM guide and upgraded my kernel to 3.5.0. http://www.dedoimedo.com/computers/xen-console.html After that, I can got console output with xm console dom_id, but the console driver is not used when I tracing the driver .. I am not sure I understand: when I tracing the driver ? Are you referring to the PV driver? with crash utility, by examing the console_drivers, the console driver is still serial8250 console, so i wonder if I didn't set up it properly or something else, is there someone ever experienced it, thanks. Hm, it should be the hvc one. Perhaps Stefano knows.. CC-ing him and xen-devel here. An HVM guest has access to both an emulated serial (if a serial=pty parameter is present in the VM config file) and a PV console. However the default first console is the emulated serial with libxl (see libxl__primary_console_find), that is what you get when you execute xl console without -t. But if you edit inittab to spawn a getty on hvc0 and then execute xl console -t pv you should get access to the PV console. -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] DomU console driver not works for Fedora17 in HVM mode with Xen 4.1.2
Thanks.
On Monday, August 20, 2012, Konrad Rzeszutek Wilk wrote:
On Mon, Aug 20, 2012 at 09:39:56PM +0800, Wei Xu wrote:
Hi All,
I'm try to set up and verify Xen console driver base on Fedora 17 and
Xen
4.1.2 with hvm guest mode,
i searched around and got a link, it give steps both for PV and HVM
mode,
I followed the HVM guide
and upgraded my kernel to 3.5.0.
http://www.dedoimedo.com/computers/xen-console.html
After that, I can got console output with xm console dom_id, but
the
console driver is not used when I tracing the driver
.. I am not sure I understand: when I tracing the driver ? Are
you referring to the PV driver?
No, i mean the hvm driver, I add some debug info to hvm console read/write
function
but it never be invoked, then I exam the console_drivers and found no hvm
like driver was
registered.
with crash utility, by examing the console_drivers, the console
driver
is still serial8250 console, so i wonder if I didn't
set up it properly or something else, is there someone ever experienced
it, thanks.
Hm, it should be the hvc one. Perhaps Stefano knows..
CC-ing him and xen-devel here.
crash p *console_drivers
$10 = {
name = ttyS\000\000\000\000\000\000\000\000\000\000\000,
write = 0x8138d5a0 serial8250_console_write,
read = 0,
device = 0x8138c350 uart_console_device,
unblank = 0,
setup = 0x81d29926 serial8250_console_setup,
early_setup = 0x8138ca10 serial8250_console_early_setup,
flags = 22,
index = 0,
cflag = 0,
data = 0x81c82640,
next = 0x0
}
Thanks,
Wei
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Re: [Fedora-xen] DomU console driver not works for Fedora17 in HVM mode with Xen 4.1.2
On Mon, 20 Aug 2012, Konrad Rzeszutek Wilk wrote: On Mon, Aug 20, 2012 at 09:39:56PM +0800, Wei Xu wrote: Hi All, I'm try to set up and verify Xen console driver base on Fedora 17 and Xen 4.1.2 with hvm guest mode, i searched around and got a link, it give steps both for PV and HVM mode, I followed the HVM guide and upgraded my kernel to 3.5.0. http://www.dedoimedo.com/computers/xen-console.html After that, I can got console output with xm console dom_id, but the console driver is not used when I tracing the driver .. I am not sure I understand: when I tracing the driver ? Are you referring to the PV driver? with crash utility, by examing the console_drivers, the console driver is still serial8250 console, so i wonder if I didn't set up it properly or something else, is there someone ever experienced it, thanks. Hm, it should be the hvc one. Perhaps Stefano knows.. CC-ing him and xen-devel here. An HVM guest has access to both an emulated serial (if a serial=pty parameter is present in the VM config file) and a PV console. However the default first console is the emulated serial with libxl (see libxl__primary_console_find), that is what you get when you execute xl console without -t. But if you edit inittab to spawn a getty on hvc0 and then execute xl console -t pv you should get access to the PV console. -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
