** Description changed:
+
+ FeatureFreeze Exception (FFE):
+ ==============================
+
+ Reason, rationale and benefits:
+ -------------------------------
+
+ The feature is based on the combination of two tickets:
+ - 1783088
+ this ticket for the kernel part was just created for completeness reasons
+ this part of the functionality automatically came with kernel 4.17
+ hence this LP ticket is 'Fix Released'
+ - 1783086
+ this is the 'user space' part of the functionality that should be addressed
by the FFE
+ There was a little confusion if this belongs to the FeatureFreeze or
KernelFreeze.
+ Since it's a package maintained by the kernel team the misconception came
up that it is not affected by the Feature, but by the Kernel Freeze,
+ hence it was not processed in time and information was missing.
+
+ Without this patch the (new) "--kexec-file-syscall" option for s390x cannot
be used with cosmic.
+ And the customer/partner needs to wait for the next d* release (means for
several month).
+
+ This FFE now asks if the single commit (below) can be added to the
+ kexec-tools (Ubuntu) of cosmic:
+
+ Description:
+ ------------
+
+ commit d4a948c268272cf37c71be820fb02bf40e56292b
+ Author: Philipp Rudo <[email protected]>
+ Date: Wed May 16 14:27:18 2018 +0200
+
+ kexec/s390: Add support for kexec_file_load
+ Since kernel 4.17-rc2 s390 supports the kexec_file_load system call.
+ Add the new system call to kexec-tools and provide the -s
(--kexec-file-syscall) option for s390 to support this new feature.
+
+ Impact / Risk:
+ --------------
+
+ Since the function / option is new and for s390(x) the risk is pretty low.
+ There are no APIs expected to break or existing functions that are expected
to fail while introducing this.
+ Package dependencies will not change, nor the install/upgrade behaviour after
this got added.
+
+ Testing of the code, test builds and verification was already done by IBM.
+ (see comment # 4)
+
+ _________________________
+
+
Provide a capability to load signed kernels. I.e. to boot signed kernels
- - from a Linux based boot loader or initial boot image
+ - from a Linux based boot loader or initial boot image
- as required for secure/trusted boot mechanisms
- for kdump kernels
Function consist of 2 contributions
- kernel 4.17 (available)
- kexec-tools (currently not available)
** Changed in: ubuntu-z-systems
Status: Triaged => New
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https://bugs.launchpad.net/bugs/1783086
Title:
[18.10 FEAT] Enable kexec_file_load system call - kexec-tools part
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