Hi Michal,

On 17/04/2024 13:14, Michal Orzel wrote:
Commit afab29d0882f ("public: s/int/int32_t") replaced int with int32_t
in XEN_GUEST_HANDLE() in memory.h but there is no guest handle defined
for it. This results in a build failure. Example on Arm:

./include/public/arch-arm.h:205:41: error: unknown type name 
‘__guest_handle_64_int32_t’
   205 | #define __XEN_GUEST_HANDLE(name)        __guest_handle_64_ ## name
       |                                         ^~~~~~~~~~~~~~~~~~
./include/public/arch-arm.h:206:41: note: in expansion of macro 
‘__XEN_GUEST_HANDLE’
   206 | #define XEN_GUEST_HANDLE(name)          __XEN_GUEST_HANDLE(name)
       |                                         ^~~~~~~~~~~~~~~~~~
./include/public/memory.h:277:5: note: in expansion of macro ‘XEN_GUEST_HANDLE’
   277 |     XEN_GUEST_HANDLE(int32_t) errs;

Fix it. Also, drop guest handle definition for int given no further use.

Fixes: afab29d0882f ("public: s/int/int32_t")
Signed-off-by: Michal Orzel <michal.or...@amd.com>

So it turned out that I committed v1 from Stefano. I was meant to commit the patch at all, but I think I started with a dirty staging :(. Sorry for that.

I have reverted Stefano's commit for now so we can take the correct patch.

Now, from my understanding, Andrew suggested on Matrix that this solution may actually be a good way to handle GUEST_HANLDEs (they were removed in v2). Maybe this can be folded in Stefano's patch?

Cheers,

--
Julien Grall

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