Gentoo Archives: gentoo-user

From: "Stefan G. Weichinger" <lists@×××××.at>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Qemu-KVM on amd64: clock in Windows guest
Date: Fri, 11 Feb 2011 09:14:12
Message-Id: 4D54FD74.1060001@xunil.at
1 Greets,
2
3 does anyone else run KVM on gentoo as well?
4
5 I delivered a amd64-server these days and a Win7-pro-guest runs on it.
6
7 Now they tell me they have clock issues in the guest :-(
8
9 I found
10
11 http://docs.fedoraproject.org/en-US/Fedora/13/html/Virtualization_Guide/chap-Virtualization-KVM_guest_timing_management.html
12
13 and ran "bcdedit /set {default} USEPLATFORMCLOCK on", didn't help, even
14 after reboot. Does it really have to say "{default}" ??
15
16 I don't know where to start.
17
18 The host kernel provides /dev/rtc, does currently have CPU_FREQ=y, but
19 afai understand I don't use that behavior (no driver or governor loaded).
20
21 Is CONFIG_HPET needed? ->
22
23 # grep -i hpet .config
24 CONFIG_HPET_TIMER=y
25 CONFIG_HPET_EMULATE_RTC=y
26 # CONFIG_HPET is not set
27
28 -
29
30 A kind of workaround is maybe using ntp in the guest?
31 I will try that asap.
32
33 Thanks for any help on this!
34
35 Stefan

Replies

Subject Author
Re: [gentoo-user] Qemu-KVM on amd64: clock in Windows guest "Stefan G. Weichinger" <lists@×××××.at>
Re: [gentoo-user] Qemu-KVM on amd64: clock in Windows guest "Petri Rosenström" <petri.rosenstrom@×××××.com>