Re: [Xen-devel] Unable to include xen/sched.h

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

You need to define __XEN_TOOLS__ before you include any Xen public headers.

 -- Keir

On 14/11/07 12:38, "ashutosh mehra" <ashutosh.xen@xxxxxxxxx> wrote:

> Hi,
> I tried including sysctl.h using 
> #ifndef __XEN_TOOLS__
> #define __XEN_TOOLS__ 1
> #endif
> #include <xen/interface/sysctl.h>
>
>  but on compilation I get following errors:
>
> In file included from /usr/local/src/xen- 3.1.0-src/linux-2.6.18-xen/include/xen/interface/sysctl.h:35,
>                  from /home/ashu/Desktop/xenmodule/mymodule.c:19:
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:40: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:95: error: expected specifier-qualifier-list before uint64_aligned_t
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:112: error: expected specifier-qualifier-list before uint64_aligned_t 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:138: error: expected specifier-qualifier-list before uint64_aligned_t
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:150: error: expected specifier-qualifier-list before uint64_aligned_t 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:226: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:237: error: expected specifier-qualifier-list before uint64_aligned_t 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:247: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:261: error: expected specifier-qualifier-list before uint64_aligned_t 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:299: error: expected specifier-qualifier-list before uint64_aligned_t
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:342: error: expected specifier-qualifier-list before uint64_aligned_t 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:362: error: expected specifier-qualifier-list before uint64_aligned_t
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:374: error: expected specifier-qualifier-list before uint64_aligned_t 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/domctl.h:397: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64
> In file included from /home/ashu/Desktop/xenmodule/mymodule.c:19: 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/sysctl.h:46: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/sysctl.h:68: error: expected specifier-qualifier-list before uint64_aligned_t 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/sysctl.h:84: error: expected specifier-qualifier-list before uint64_aligned_t
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/sysctl.h:124: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64 
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/sysctl.h:136: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64
> /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/include/xen/interface/sysctl.h:149: error: expected specifier-qualifier-list before XEN_GUEST_HANDLE_64 
>
> Any solutions for this problem?
>
> One more question...
> How to add a watch on entire tree? I tried using register_xenbus_watch() to add a watch on "local/domain" but it is not working.
> And...
> what does this function do?
> char **xenbus_directory(struct xenbus_transaction t,
>             const char *dir, const char *node, unsigned int *num);
>
> Thanks,
> Ashutosh
>
>
> On Nov 14, 2007 4:54 PM, Keir Fraser < Keir.Fraser@xxxxxxxxxxxx> wrote:
> > On 14/11/07 11:21, "ashutosh mehra" <ashutosh.xen@xxxxxxxxx> wrote:
> >
> > > I tried #include<xen/interface/sysctl.h> but I get an error: #error "domctl operations are intended for use by node control tools only" 
> > >
> > > Keir, how do I add a watch on an entire path, e.g. /local/domain/? More importantly, how can I get the list of domains/domainIds of the currently running domains in a module running in dom0 kernel?? Please help, I'm looking for an answer to this since quite a few days! 
> >
> > You can add a watch on that entire path from dom0, no problem. As for getting a list of all domains, you can only do that with sysctl. If you really need it then #define __XEN_TOOLS__ before including sysctl.h.
> >
> >  -- Keir




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