[PATCH V3 1/4] KVM: Add documentation for KVM_CAP_NR_MEMSLOTS

linucherian at gmail.com linucherian at gmail.com
Mon Mar 6 21:52:41 PST 2017

From: Linu Cherian <linu.cherian at cavium.com>

Signed-off-by: Linu Cherian <linu.cherian at cavium.com>
 Documentation/virtual/kvm/api.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 03145b7..7b82f1c 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -951,6 +951,10 @@ This ioctl allows the user to create or modify a guest physical memory
 slot.  When changing an existing slot, it may be moved in the guest
 physical memory space, or its flags may be modified.  It may not be
 resized.  Slots may not overlap in guest physical address space.
+Bits 0-15 of "slot" specifies the slot id and this value should be
+less than the maximum number of user memory slots supported per VM.
+The maximum allowed slots can be queried using KVM_CAP_NR_MEMSLOTS,
+if this capability is supported by the architecture.
 If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 of "slot"
 specifies the address space which is being modified.  They must be

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