Bug 1855364 - [RFE] Support for TPM in memory snapshots
Summary: [RFE] Support for TPM in memory snapshots
Keywords:
Status: CLOSED DUPLICATE of bug 1855367
Alias: None
Product: Red Hat Enterprise Linux Advanced Virtualization
Classification: Red Hat
Component: libvirt
Version: 8.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: 8.3
Assignee: Virtualization Maintenance
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-07-09 16:36 UTC by Milan Zamazal
Modified: 2020-07-10 09:05 UTC (History)
4 users (show)

Fixed In Version:
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Environment:
Last Closed: 2020-07-10 09:05:17 UTC
Type: Bug
Target Upstream Version:
Embargoed:


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System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1431792 1 None None None 2023-09-07 18:51:23 UTC

Description Milan Zamazal 2020-07-09 16:36:40 UTC
Emulated TPM devices, including TPM data storage, are handled with the external help of swtpm. When a memory snapshot is created, TPM state and data must be stored as well, to ensure consistency when a VM containing an emulated TPM device is restored from the snapshot. To my knowledge, libvirt currently doesn't handle TPM when making a memory snapshot and it doesn't provide a mechanism to copy swtpm data manually while ensuring their consistency with the snapshot.

In order to be able to use memory snapshots in VMs with emulated TPM devices without risking errors, mismatches or data loss, libvirt support for TPM data in memory snapshots is needed.

Comment 1 Jaroslav Suchanek 2020-07-10 09:05:17 UTC

*** This bug has been marked as a duplicate of bug 1855367 ***


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