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RE: [PATCH v2 0/7] x86: compat header generation and checking adjustments

> -----Original Message-----
> From: Jan Beulich <jbeulich@xxxxxxxx>
> Sent: 01 July 2020 11:23
> To: xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>; George Dunlap 
> <George.Dunlap@xxxxxxxxxxxxx>; Ian
> Jackson <ian.jackson@xxxxxxxxxx>; Julien Grall <julien@xxxxxxx>; Wei Liu 
> <wl@xxxxxxx>; Stefano
> Stabellini <sstabellini@xxxxxxxxxx>; Roger Pau Monné <roger.pau@xxxxxxxxxx>; 
> Paul Durrant
> <paul@xxxxxxx>
> Subject: [PATCH v2 0/7] x86: compat header generation and checking adjustments
> As was pointed out by 0e2e54966af5 ("mm: fix public declaration of
> struct xen_mem_acquire_resource"), we're not currently handling structs
> correctly that have uint64_aligned_t fields. Patch 2 demonstrates that
> there was also an issue with XEN_GUEST_HANDLE_64().
> Only the 1st patch was previously sent, but the approach chosen has
> been changed altogether. All later patches are new. For 4.14 I think
> at least patch 1 should be considered.

It's now quite a large patch. Since xen_mem_acquire_resouce() has been fixed, 
patch #1 (as you say in the comment there) is addressing a latent issue and so 
I’d prefer not to take what is now quite a large patch into 4.14.


> 1: x86: fix compat header generation
> 2: x86/mce: add compat struct checking for XEN_MC_inject_v2
> 3: x86/mce: bring hypercall subop compat checking in sync again
> 4: x86/dmop: add compat struct checking for 
> XEN_DMOP_map_mem_type_to_ioreq_server
> 5: x86: generalize padding field handling
> 6: flask: drop dead compat translation code
> 7: x86: only generate compat headers actually needed
> Jan



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