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[Xen-users] No access to hwclock on Dom0 / Xen 4.0.1-rc5-pre / pv_ops 2.

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Subject: [Xen-users] No access to hwclock on Dom0 / Xen 4.0.1-rc5-pre / pv_ops
From: Iain Kay <i.kay@xxxxxx>
Date: Sun, 01 Aug 2010 18:57:54 +0100
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Hello all,

I recently installed Xen 4.0.1-rc5-pre on CentOS 5.5 from the xen-4.0-testing 
repo. Everything seems to be working good; got it running with pv_ops 
kernel, been testing the Xen API, pv-grub, Windows HVM with the WHQL certified 
pv drivers.

Now I have realised that Dom-0's cmos clock is 3 hours out. So I attempt to 
correct it locally, then push the changes to the hardware clock. I run the 
following command on Domain-0.

Here's what happens:
[root@indigo ~]# hwclock --systohc
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
[root@indigo ~]# 

I was able to use the hwclock command fine before booting the Xen pv_ops 
kernel. I have gone through kernel config lines and ensured that 
CONFIG_RTC_...etc is enabled, have tried compiling the modules for rtc drivers 
and loading them one by one but to no avail.

Any input would be greatly appreciated.


Iain Kay

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