[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Converting a HVM Guest into a PV-on-HVM Guest
On Mon, Jun 20, 2011 at 10:23 PM, Srujan Kotikela <ksrujandas@xxxxxxxxx> wrote: >> Hi Todd, >> Thanks for the reply. >> I am trying to invoke a hypercall from the HVM guest. The only way I did >> hypercalls from DomU till now (on PV guests) is use the libxc >> library do_xen_hypercall (which in turn uses do_privcmd which in turn uses >> ioctl). >> Now I have a added a custom hypercall to xen and I am trying to invoke it >> from HVM guest. As the HVM guest is not xenified (-linux) it doesn't have >> the privcmd interface (/proc/xen/privcmd). So I am looking for a way to >> invoke the custom hypercall from HVM. While in this try, I found that >> pv-on-hvm will enable hypercalls from HVM guest. However I also read that it >> may not allow all the hypercalls (correct me if I am wrong). >> While looking at the other posts I found >> this, http://xen.1045712.n5.nabble.com/hypercalls-from-HVM-guest-on-XEN-3-4-3-td4454566.html which >> recommends to look into tools/firmware/hvmloader. There is some code in >> hypercall.h in the hvmloader directory >> (http://rswiki.csie.org/lxr/http/source/tools/firmware/hvmloader/hypercall.h?v=xen-4.0.0;a=ppc). >> I am figuring out how to make use of this. Will update once I figure it out. >> Sorry for not being unclear, earlier. I do think that you are getting into the territory where you might want to read this [1] and then ask on xen-devel for clarification. [1] http://wiki.xensource.com/xenwiki/AskingXenDevelQuestions _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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