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Paolo Bonzini 2da1ed62d5 KVM: SVM: document KVM_MEM_ENCRYPT_OP, let userspace detect if SEV is available 
Userspace has no way to query if SEV has been disabled with the
sev module parameter of kvm-amd.ko.  Actually it has one, but it
is a hack: do ioctl(KVM_MEM_ENCRYPT_OP, NULL) and check if it
returns EFAULT.  Make it a little nicer by returning zero for
SEV enabled and NULL argument, and while at it document the
ioctl arguments.

Cc: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-20 13:47:52 -04:00
..
kvm KVM: SVM: document KVM_MEM_ENCRYPT_OP, let userspace detect if SEV is available 2020-03-20 13:47:52 -04:00
uml docs: virt: user_mode_linux.rst: fix URL references 2020-02-12 20:09:49 +01:00
guest-halt-polling.rst docs: virt: guest-halt-polling.txt convert to ReST 2020-02-12 20:10:08 +01:00
index.rst docs: virt: guest-halt-polling.txt convert to ReST 2020-02-12 20:10:08 +01:00
paravirt_ops.rst