From 726b99c4f73c2e386c4ec5aa90d5124489573bd2 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Thu, 24 Aug 2017 20:51:35 +0200 Subject: [PATCH] KVM: x86: document special identity map address value MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Setting it to 0 leads to setting it to the default value, let's document this. Reviewed-by: Radim Krčmář Signed-off-by: David Hildenbrand Signed-off-by: Radim Krčmář --- Documentation/virtual/kvm/api.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index e63a35f..22bc5a0 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -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). -- 2.7.4