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Commit 726b99c4 authored by David Hildenbrand's avatar David Hildenbrand Committed by Paolo Bonzini
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KVM: x86: document special identity map address value 



Setting it to 0 leads to setting it to the default value, let's document
this.

Reviewed-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
parent d8a6e365

Documentation/virtual/kvm/api.txt

+3 −0
Original line number Diff line number Diff line
@@ -1124,6 +1124,9 @@ guest physical address space and must not conflict with any memory slot 
or any mmio address.  The guest may malfunction if it accesses this memory

region.



Setting the address to 0 will result in resetting the address to its default

(0xfffbc000).



This ioctl is required on Intel-based hosts.  This is needed on Intel hardware

because of a quirk in the virtualization implementation (see the internals

documentation when it pops into existence).