Re: [Xen-devel] [PATCH 8/8] raisin: RFC Add blktap2 as an external tree

[Dave Scott <Dave.Scott@xxxxxxxxxx>]

> On 21 Apr 2015, at 12:06, George Dunlap <george.dunlap@xxxxxxxxxxxxx> wrote:
> 
> On 04/21/2015 12:04 PM, Dave Scott wrote:
>>> FYI Iâve been sporadically building the blktap userspace on ARM and it 
>>> seems to work, although last time I had to fix some format strings which 
>>> assumed a 64-bit architecture. I think that patch got merged. I think my 
>>> last build was in January.
>>> 
>>> The Mirage xen-arm-builder images currently contain a patched kernel with 
>>> the blktap driver added as a patch, and a build of xapi + libxl + the 
>>> blktap userspace tools. Itâs only been lightly tested though :-)
>> 
>> Quick followup, Iâve been building the tools with this patch:
>> 
>> https://github.com/xenserver/buildroot/blob/master/SOURCES/blktap-gntcpy.patch
>> 
>> This allows the build without the grant copy support.
> 
> This is the master branch, then?

Iâm using an rpm .spec file:

https://github.com/xenserver/buildroot/blob/master/SPECS/blktap.spec

which points to a tag. Itâs currently v3.0.50 which looks like itâs the latest 
commit on the master branch:

https://github.com/xapi-project/blktap/commit/ee27d3f812ecc545d286b946d247eb782833b405

However Iâve not built this exact version on ARM yet. My old ARM binaries (from 
Feb 2015 rather than Jan) are tagged 0.9.3.fe874d-1 which appears to correspond 
to this version of the spec file:

https://github.com/xenserver/buildroot/blob/7fe65d137b6d759c80fb8f6d150f8df884ca9117/SPECS/blktap.spec

Cheers,
Dave

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