KVM: s390: fake memslot for ucontrol VMs

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Create a fake memslot for ucontrol VMs. The fake memslot identity-maps
userspace.

Now memslots will always be present, and ucontrol is not a special case
anymore.

Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20250123144627.312456-4-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250123144627.312456-4-imbrenda@linux.ibm.com>

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This commit is contained in:

Claudio Imbrenda 2025-01-23 15:46:15 +01:00

parent decff09adb

commit 413c98f24c

4 changed files with 21 additions and 2 deletions

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2

Documentation/virt/kvm/api.rst

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2

arch/s390/include/asm/kvm_host.h

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17

arch/s390/kvm/kvm-s390.c

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2

arch/s390/kvm/kvm-s390.h

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