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Re: [Xen-devel] [PATCH v3] x86/hvm: remove default ioreq server



>>> On 07.08.18 at 17:42, <paul.durrant@xxxxxxxxxx> wrote:
> My recent patch [1] to qemu-xen-traditional removes the last use of the
> 'default' ioreq server in Xen. (This is a catch-all ioreq server that is
> used if no explicitly registered I/O range is targetted).
> 
> This patch can be applied once that patch is committed, to remove the
> (>100 lines of) redundant code in Xen.
> 
> NOTE: The removal of the special case for HVM_PARAM_DM_DOMAIN in
>       hvm_allow_set_param() is not directly related to removal of
>       default ioreq servers. It could have been cleaned up at any time
>       after commit 9a422c03 "x86/hvm: stop passing explicit domid to
>       hvm_create_ioreq_server()". It is now added to the new
>       deprecated sets introduced by this patch.
> 
> [1] 
> https://lists.xenproject.org/archives/html/xen-devel/2018-08/msg00270.html 
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

I'm afraid this change is responsible for osstest finding

In file included from 
/home/osstest/build.126771.build-amd64/xen/tools/qemu-xen-dir/include/hw/xen/xen_backend.h:4:0,
                 from 
/home/osstest/build.126771.build-amd64/xen/tools/qemu-xen-dir/hw/block/xen_disk.c:28:
/home/osstest/build.126771.build-amd64/xen/tools/qemu-xen-dir/include/hw/xen/xen_common.h:
 In function 'xen_get_default_ioreq_server_info':
/home/osstest/build.126771.build-amd64/xen/tools/qemu-xen-dir/include/hw/xen/xen_common.h:412:40:
 error: 'HVM_PARAM_BUFIOREQ_EVTCHN' undeclared (first use in this function)
     rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN,
                                        ^
/home/osstest/build.126771.build-amd64/xen/tools/qemu-xen-dir/include/hw/xen/xen_common.h:412:40:
 note: each undeclared identifier is reported only once for each function it 
appears in
/home/osstest/build.126771.build-amd64/xen/tools/qemu-xen-dir/rules.mak:69: 
recipe for target 'hw/block/xen_disk.o' failed
make: *** [hw/block/xen_disk.o] Error 1

I guess I'm going to revert it for now.

Jan



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