[Xen-devel] xenstore tools -s option behaviour

2016-04-11 Thread James Dingwall
Hi, I was investigating the behaviour of the -s option and I'm not sure if the behaviour of xs_open() is exactly as intended. In my case I am running xenstored in the dom0. Running a strace on xenstore-read with/without the -s option shows the tool always using xenstore socket. The flag whi

[Xen-devel] xl mem-set for domain 0 regression

2017-10-10 Thread James Dingwall
Hi, We are migrating from xen 4.4 to xen 4.8. At the moment we boot our system with a xen command line that includes "dom0_mem=8192m,min:1728m,max:8192m". We have autoballoon of dom0 disabled in xl.conf and instead call xl mem-set 0 to change the dom0 memory allocation. (We shrink before

Re: [Xen-devel] xl mem-set for domain 0 regression

2017-10-12 Thread James Dingwall
On Wed, Oct 11, 2017 at 05:00:45PM +0100, Wei Liu wrote: > On Tue, Oct 10, 2017 at 04:03:32PM +0100, James Dingwall wrote: > > Hi, > > > > We are migrating from xen 4.4 to xen 4.8. At the moment we boot our system > > with a xen command line that includes "do

[Xen-devel] [patch] honour maxmem from config

2017-08-14 Thread James Dingwall
Hi, >From xl.cfg(5): maxmem=MBYTES Specifies the maximum amount of memory a guest can ever see. The value of maxmem= must be equal or greater than memory=. In combination with memory= it will start the guest "pre-ballooned", if the values of memory= and maxmem= differ.

Re: [Xen-devel] [patch] honour maxmem from config

2017-08-15 Thread James Dingwall
On Tue, Aug 15, 2017 at 05:36:52AM +0100, James Dingwall wrote: > Hi, > > From xl.cfg(5): > > maxmem=MBYTES >Specifies the maximum amount of memory a guest can ever see. The > value of maxmem= must be equal or greater than memory=. > >In

[Xen-devel] Linux kernel tmem regression v4.1 -> v4.4

2017-09-28 Thread James Dingwall
Hi, I am trying to migrate my domU instances from v4.1.44 to v4.4.88 and it seems that whether or not e820_host = 1 in the domU configuration is the cause of the following stack trace. Please note I have #define MC_DEBUG 1 in arch/x86/xen/multicall.c so the failed hypervisor call is logged.

[Xen-devel] Python Bindings Status

2015-03-12 Thread James Dingwall
Hi, I am trying to use the libxl python bindings but having mixed levels of success. I assume that the current status of this is unsupported as the build of the xl.so is disabled by default but perhaps completing the missing parts could be quite trivial? I have managed to enabled the build w

[Xen-devel] Nested Virtualisation and UEFI

2015-09-04 Thread James Dingwall
Hi, I am trying to get a nested virtualisation environment working where it is started with bios='ovmf'. When my hvm configuration is bios='seabios' and I use the xen.gz everything starts correctly. Using the xen.efi from the same build when bios='ovmf' causesthe guest Linux kernel to block

Re: [Xen-devel] Nested Virtualisation and UEFI

2015-09-04 Thread James Dingwall
On Fri, Sep 04, 2015 at 03:17:38AM -0600, Jan Beulich wrote: > >>> On 04.09.15 at 10:47, wrote: > > I am trying to get a nested virtualisation environment working where it is > > started with bios='ovmf'. When my > > hvm configuration is bios='seabios' and I use the xen.gz everything starts >

Re: [Xen-devel] Nested Virtualisation and UEFI

2015-09-04 Thread James Dingwall
On Fri, Sep 04, 2015 at 06:06:30AM -0600, Jan Beulich wrote: > >>> On 04.09.15 at 13:35, wrote: > > I was worried about spamming the list by sending the full logs but if that > > is likely to have the most useful > > information then here we go... > > And indeed not all of it would have been ne