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| author | David Hildenbrand <david@redhat.com> | 2017-08-24 20:51:35 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-10-12 14:01:53 +0200 |
| commit | 726b99c4f73c2e386c4ec5aa90d5124489573bd2 (patch) | |
| tree | 0d2375bded882038f703f7500c75c5a4ebd0b245 /Documentation/virtual | |
| parent | KVM: VMX: cleanup init_rmode_identity_map() (diff) | |
| download | linux-726b99c4f73c2e386c4ec5aa90d5124489573bd2.tar.xz linux-726b99c4f73c2e386c4ec5aa90d5124489573bd2.zip | |
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: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'Documentation/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index e63a35fafef0..22bc5a052a5d 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). |