Re: [PATCH v4 1/2] KVM: guest_memfd: add generic population via write

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On 28/08/2025 21:01, David Hildenbrand wrote:
On 28.08.25 17:31, Kalyazin, Nikita wrote:
write syscall populates guest_memfd with user-supplied data in a generic
way, ie no vendor-specific preparation is performed.  This is supposed
to be used in non-CoCo setups where guest memory is not
hardware-encrypted.

The following behaviour is implemented:
  - only page-aligned count and offset are allowed
  - if the memory is already allocated, the call will successfully
    populate it
  - if the memory is not allocated, the call will both allocate and
    populate
  - if the memory is already populated, the call will not repopulate it

Signed-off-by: Nikita Kalyazin <kalyazin@xxxxxxxxxx>
---

Just nothing that checkpatch complains about

a) Usage of "unsigned" instead of "unsigned int"

Hi David,


I copied the prototypes straight from the fs.h... In any case, will fix in the next version.


b) The From doesn't completely match the SOB: "Kalyazin, Nikita" vs
"Nikita Kalyazin"

It's about .com vs .co.uk, I think.  Will have to use "From:" apparently.


Thanks,
Nikita


--
Cheers

David / dhildenb






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