[v3,13/17] SUPPORT.md: Add secondary memory management features

Commit Message

George Dunlap Nov. 22, 2017, 7:20 p.m. UTC

Signed-off-by: George Dunlap <[e-mail]>
Acked-by: Jan Beulich <[e-mail]>
---
Changes since v2:
- Add PoD entry
- memsharing x86 -> experimental, ARM -> {}

CC: Ian Jackson <[e-mail]>
CC: Wei Liu <[e-mail]>
CC: Andrew Cooper <[e-mail]>
CC: Jan Beulich <[e-mail]>
CC: Stefano Stabellini <[e-mail]>
CC: Konrad Wilk <[e-mail]>
CC: Tim Deegan <[e-mail]>
CC: Tamas K Lengyel <[e-mail]>
---
 SUPPORT.md | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

Patch

diff --git a/SUPPORT.md b/SUPPORT.md
index 2d4386ad68..63f6a6d127 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -205,6 +205,43 @@  Export hypervisor coverage data suitable for analysis by gcov or lcov.
 Allows a guest to add or remove memory after boot-time.
 This is typically done by a guest kernel agent known as a "balloon driver".
 
+### Populate-on-demand memory
+
+    Status, x86 HVM: Supported
+
+This is a mechanism that allows normal operating systems with only a balloon driver
+to boot with memory < maxmem.
+
+### Memory Sharing
+
+    Status, x86 HVM: Expermental
+
+Allow sharing of identical pages between guests
+
+### Memory Paging
+
+    Status, x86 HVM: Experimenal
+
+Allow pages belonging to guests to be paged to disk
+
+### Transcendent Memory
+
+    Status: Experimental
+
+Transcendent Memory (tmem) allows the creation of hypervisor memory pools
+which guests can use to store memory
+rather than caching in its own memory or swapping to disk.
+Having these in the hypervisor
+can allow more efficient aggregate use of memory across VMs.
+
+### Alternative p2m
+
+    Status, x86 HVM: Tech Preview
+    Status, ARM: Tech Preview
+
+Allows external monitoring of hypervisor memory
+by maintaining multiple physical to machine (p2m) memory mappings.
+
 ## Resource Management
 
 ### CPU Pools