[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [PATCH] TSC scaling for live migration between platforms with different TSC frequecies
Hi, Keir This is the new version which has addressed the comments from the mailing list. Please review it again. Thanks! Xiantao Zhang, Xiantao wrote: > Hi, Keir > > This patchset targets for enabling TSC scaling in software for > live migration between platforms with different TSC frequecies. > Once found the target host's frequency is different with source > host's, hypervisor will trap and emulate guest's all rdtsc > instructions with its expected frequency. If hardware's TSC frequency > is difffernt with guest's exepcted freq, guest may behave abnormally, > eg. incorrect wallclock, soft lockup, even hang in some cases. > Therefore, this patchset is necessary to avoid such issues. > > PATCH 0001-- Save guest's preferred TSC in image for save/restore and > migration > PATCH 0002-- Move multidiv64 as a library function. > PATCH 0003-- Scaling host TSC freqeuncy patch. > > Signed-off-by Xiantao Zhang <xiantao.zhang@xxxxxxxxx> > Xiantao Attachment:
0003-scaling_guest_tsc.patch Attachment:
0001-save_tsc_frequency.patch Attachment:
0002-move_multidiv64_out.patch _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |