Hi Paul,
Nope, I’m using qemu provided by xen-runtime in the centos packages (https://cbs.centos.org/koji/packageinfo?packageID=88). root 1462 0.2 0.3 406856 21016 ? SLsl Aug13 9:37 /usr/lib64/xen/bin/qemu-system-i386 -xen-domid 31 -chardev socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-31,server,nowait -no-shutdown -mon chardev=libxl-cmd,mode=control -chardev socket,id=libxenstat-cmd,path=/var/run/xen/qmp-libxenstat-31,server,nowait -mon chardev=libxenstat-cmd,mode=control -nodefaults -name nathanwin -vnc 127.0.0.1:0,to=99 -display none -device cirrus-vga,vgamem_mb=8 -boot order=d -smp 2,maxcpus=2 -device rtl8139,id=nic0,netdev=net0,mac=00:16:3d:01:04:eb -netdev type=tap,id=net0,ifname=vif31.0-emu,script=no,downscript=no -device rtl8139,id=nic1,netdev=net1,mac=00:16:3d:01:04:ee -netdev type=tap,id=net1,ifname=vif31.1-emu,script=no,downscript=no -machine xenfv -m 8184 -drive file=/mnt/gtc_disk_f1/nathanwin/drive_c,if=ide,index=0,media=disk,format=raw,cache=writeback -drive file=/mnt/xen/iso/xen_pv-8.1.iso,if=ide,index=2,readonly=on,media=cdrom,format=raw,cache=writeback,id=ide-51745 ~ # rpm -qf /usr/lib64/xen/bin/qemu-system-i386 xen-runtime-4.6.3-1.el6.x86_64 - Nathan From: Paul Durrant [mailto:paul.durr...@citrix.com] Sent: Monday, August 15, 2016 1:54 AM To: Nathan March <nat...@gt.net>; win-pv-de...@lists.xenproject.org Cc: xen-devel@lists.xen.org Subject: RE: [win-pv-devel] rtc timeoffset not being set on TZ changes? Hi Nathan, Are you using upstream QEMU? If you are then you’re problem is expected. The code in xen-hvm.c:handle_ioreq() completely ignores RTC updates from Xen, as can be seen at http://xenbits.xen.org/gitweb/?p=qemu-upstream-unstable.git;a=blob;f=xen-hvm.c;hb=HEAD#l927 whereas QEMU trad handles them, as can be seen at http://xenbits.xen.org/gitweb/?p=qemu-xen-unstable.git;a=blob;f=i386-dm/helper2.c;hb=HEAD#l475. The PV drivers do not directly interact with this key so there’s nothing essentially ‘wrong’ in your VM. Paul From: win-pv-devel [mailto:win-pv-devel-boun...@lists.xenproject.org] On Behalf Of Nathan March Sent: 12 August 2016 18:51 To: win-pv-de...@lists.xenproject.org <mailto:win-pv-de...@lists.xenproject.org> Subject: [win-pv-devel] rtc timeoffset not being set on TZ changes? Hi All, On Win 2012 R2 with the latest 8.1 signed drivers, I'm having issues with clocks being reset back to host time on migration. Xen 4.6.3 with host kernel 3.18.34, using gwd's centos packages. Based on https://wiki.xenproject.org/wiki/HVM_timeoffsets I would expect to see rtc/timeoffset being set when I change a timezone/clock in windows, but that's not the case. No matter what, it always seems to be null: 7c253d95-b15f-45b5-bf1c-395c1cc7b034 = "" name = "nathanwin" uuid = "7c253d95-b15f-45b5-bf1c-395c1cc7b034" rtc = "" timeoffset = "" image = "" ostype = "hvm" start_time = "1471022816.81" If I issue a shutdown from XL windows does a graceful shutdown, so the xenbus drivers do seem to be running fine. Can anyone comment on what might be up here, or if this is just a bug? Cheers, Nathan
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