Hi Wei,
Here I'm trying to request the freeze exception for RMRR.
1. clarify the state of patch series / feature.
Reviewed Acked RMRR series v7
Y Y [v7][PATCH 01/16] xen: introduce
XENMEM_reserved_device_memory_map
Y Y [v7][PATCH 02/16] xen/vtd: create RMRR mapping
Y N [v7][PATCH 03/16] xen/passthrough: extend hypercall to support rdm
reservation policy
Y Y [v7][PATCH 04/16] xen: enable XENMEM_memory_map in hvm
Y N [v7][PATCH 05/16] hvmloader: get guest memory map into
memory_map[]
Y N [v7][PATCH 06/16] hvmloader/pci: skip reserved ranges
Y N [v7][PATCH 07/16] hvmloader/e820: construct guest e820
table
Y Y [v7][PATCH 08/16] tools/libxc: Expose new hypercall
xc_reserved_device_memory_map
Y Y [v7][PATCH 09/16] tools: extend xc_assign_device() to support rdm
reservation policy
Y Y [v7][PATCH 10/16] tools: introduce some new parameters to set rdm
policy
Y Y [v7][PATCH 11/16] tools/libxl: detect and avoid
conflicts with RDM
Y Y [v7][PATCH 12/16] tools: introduce a new parameter to set a
predefined rdm boundary
Y Y [v7][PATCH 13/16] libxl: construct e820 map with RDM information
for HVM guest
Y Y [v7][PATCH 14/16] xen/vtd: enable USB device assignment
Y Y [v7][PATCH 15/16] xen/vtd: prevent from assign the device with
shared rmrr
Y Y [v7][PATCH 16/16] tools: parse to enable new rdm policy
parameters
Note Jackson and Campbell also raised some comments to improve current
codes.
2. explain why it needs to be in this release (benefits).
RMRR mechanism was broken for a long time and this makes VM always face
security issues. In addition, those associated devices can't be passed
through to VM and even result in VM crashes.
3. explain why it doesn't break things (risks).
Our policy makes sure that system will work in the original way by
default as without the RMRR patches. And especially, this series just
impacts those platforms which have RMRR.
4. CC relevant maintainers and release manager.
Done
Cheers,
Tiejun
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