Merge tag 'kvm-x86-svm-7.3' of https://github.com/kvm-x86/linux into HEAD

KVM SVM changes for 7.3

 - Remove a dying VM from the GA Log notifier list before the VM is actually
   destroyed, to fix a potential use-after-free.

 - Don't pass FOLL_WRITE when registering encrypted memory regions, i.e. when
   pinning SEV/SEV-ES guest memory, to fix a regression with file-backed memory
   introduced by KVM's (correct) usage of long-term pins.

   [This is correct because, while FOLL_WRITE was needed in the past to trigger
   CoW unsharing, nowadays FOLL_LONGTERM does that already even without
   FOLL_WRITE.  And in fact, get_user_pages() actually disallows FOLL_WRITE
   together with FOLL_LONGTERM.  This change was acked by the MM maintainers.
   For more inforamtion see commit ee1a586dd1fa2f245b3b753a3e44d9263a49240b.
   - Paolo]

 - Allocate full pages for SEV/SEV-ES {DE,EN}CRYPT ops on SNP-enabled hosts to
   fix a data corruption issue due to the PSP driver assigning to-be-written
   pages to firmware (as required by the SNP specs).

 - Unconditionally intercept ICBEP so that KVM generates the correct guest RIP
   when handling an ICEBP-induced TASK_SWITCH #VMEXIT.

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