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| -rw-r--r-- | Documentation/virt/kvm/api.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 52bbbb553ce1..e7998feaa940 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -6471,7 +6471,8 @@ Errors: ========== =============================================================== EINVAL The specified `gpa` and `size` were invalid (e.g. not - page aligned, causes an overflow, or size is zero). + page aligned, causes an overflow, or size is zero), or the VM + is UCONTROL (s390). ENOENT The specified `gpa` is outside defined memslots. EINTR An unmasked signal is pending and no page was processed. EFAULT The parameter address was invalid. @@ -6494,7 +6495,7 @@ Errors: KVM_PRE_FAULT_MEMORY populates KVM's stage-2 page tables used to map memory for the current vCPU state. KVM maps memory as if the vCPU generated a stage-2 read page fault, e.g. faults in memory as needed, but doesn't break -CoW. However, KVM does not mark any newly created stage-2 PTE as Accessed. +CoW. On x86, KVM does not mark any newly created stage-2 PTE as Accessed. In the case of confidential VM types where there is an initial set up of private guest memory before the guest is 'finalized'/measured, this ioctl |