| Date | Wed, 19 Jan 2022 12:52:58 +0100 | Subject | Re: [RFC PATCH v1 06/10] KVM: s390: Add vm IOCTL for key checked guest absolute memory access | From | Thomas Huth <> |
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On 18/01/2022 10.52, Janis Schoetterl-Glausch wrote: > Channel I/O honors storage keys and is performed on absolute memory. > For I/O emulation user space therefore needs to be able to do key > checked accesses.
Can't we do the checking in userspace? We already have functions for handling the storage keys there (see hw/s390x/s390-skeys-kvm.c), so why can't we do the checking in QEMU?
Thomas
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