doc: update release notes for v2.7 on configuration upgrades
This patch updates recommendations to upgrade from a prior ACRN version for v2.7, and updates the what's new summary. Signed-off-by: Kunhui-Li <kunhuix.li@intel.com> Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
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@ -85,6 +85,24 @@ Update Scenario Names
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VMs and the Service VM provides resource emulation and sharing for
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VMs and the Service VM provides resource emulation and sharing for
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post-launched User VMs, all in the same system configuration.
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post-launched User VMs, all in the same system configuration.
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User-Friendly VM names
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Instead of using a UUID as the User VM identifier, we're now using a
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user-friendly VM name.
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Extend Use of CAT Cache Tuning to VMs
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In previous releases, Cache Allocation Technology (vCAT) was available only
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at the hypervisor level and with per-VM granularity. In this v2.7 release,
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each VM with exclusive cache resources can partition its cache resources with
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per-thread granularity and allocate cache resources to prioritized tasks.
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Expand Passthrough Device Use Cases to Pre-Launched VMs
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We now allow pre-launched VMs (in partitioned or hybrid scenarios) to use
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graphics device passthrough for improved performance, a feature previously
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available to only post-launched VMs.
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We've extended Trusted Platform Module (TPM) 2.0 and its associated resource
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passthrough to post-launched VMs.
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Upgrading to v2.7 From Previous Releases
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Upgrading to v2.7 From Previous Releases
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****************************************
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****************************************
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@ -99,18 +117,26 @@ that is essential to build ACRN. Compared to previous versions, ACRN v2.7 adds
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the following hardware information to board XMLs to support new features and
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the following hardware information to board XMLs to support new features and
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fixes.
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fixes.
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- list features here
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- Always initialize ``hw_ignore`` when parsing ``DMAR``.
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The new board XML can be generated using the ACRN board inspector in the same
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The new board XML can be generated using the ACRN board inspector in the same
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way as ACRN v2.6. Refer to :ref:`acrn_config_workflow` for a complete list of
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way as ACRN v2.6. Refer to :ref:`acrn_config_workflow` for a complete list of
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steps to deploy and run the tool.
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steps to deploy and run the tool.
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Add New Configuration Options
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Update Configuration Options
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=============================
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============================
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In v2.7, the following elements are added to scenario XML files.
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In v2.7, the following elements are added to scenario XML files.
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- list elements here
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- :option:`vm.name` (This is a required element. Names must be unique, up to 15
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characters long, and contain no space characters.)
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- :option:`hv.CAPACITIES.MAX_VM_NUM` (Default value is ``8``)
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- :option:`hv.FEATURES.RDT.VCAT_ENABLED` (Default value is ``n``)
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The following elements were removed.
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- ``KATA_VM`` VM type.
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- ``hv.CAPACITIES.MAX_EFI_MMAP_ENTRIES``
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Document Updates
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Document Updates
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****************
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****************
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@ -144,6 +170,9 @@ Fixed Issues Details
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.. comment example item
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.. comment example item
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- :acrn-issue:`5626` - [CFL][industry] Host Call Trace once detected
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- :acrn-issue:`5626` - [CFL][industry] Host Call Trace once detected
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- :acrn-issue:`6610` - [ConfigTool]Remove the restriction that SERIAL_CONSOLE needs to be ttys0, ttys1, ttys2 or ttys3
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- :acrn-issue:`6620` - [ConfigTool]pci devices' io-ports passthrough
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Known Issues
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Known Issues
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************
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************
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