diff mbox series

[v4,05/12] KVM: Documentation: document KVM_GMEM_NO_DIRECT_MAP flag

Message ID 20250221160728.1584559-6-roypat@amazon.co.uk (mailing list archive)
State New
Headers show
Series Direct Map Removal for guest_memfd | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Patrick Roy Feb. 21, 2025, 4:07 p.m. UTC 
Signed-off-by: Patrick Roy <roypat@amazon.co.uk>
---
 Documentation/virt/kvm/api.rst | 13 +++++++++++++
 1 file changed, 13 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 2b52eb77e29c..fc0d2314fae6 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -6388,6 +6388,19 @@  a single guest_memfd file, but the bound ranges must not overlap).
 
 See KVM_SET_USER_MEMORY_REGION2 for additional details.
 
+The following flags are defined:
+
+KVM_GMEM_NO_DIRECT_MAP
+   Ensure memory backing this guest_memfd inode is unmapped from the kernel's
+   address space. Check KVM_CAP_GMEM_NO_DIRECT_MAP for support.
+
+Errors:
+
+  ========== ===============================================================
+  EINVAL     The specified `flags` were invalid or not supported.
+  ========== ===============================================================
+
+
 4.143 KVM_PRE_FAULT_MEMORY
 ---------------------------