Public bug reported:
[ Impact ]
Linux has raised the default number of 64bit CPUs to 256 in commit
0fa749771993 ("riscv: Raise default NR_CPUS for 64BIT to 256"). OpenSBI
should use a matching value for SBI_HARTMASK_MAX_BITS. This avoids boot
failures if a user makes use of the large number of harts.
A patch has been submitted to upstream:
[PATCH 1/1] sbi: make SBI_HARTMASK_MAX_BITS customizable, default 256
https://lore.kernel.org/opensbi/[email protected]/T/#u
Let's wait for reviewer feedback.
As we will be backporting the 7.2 kernel to Resolute we should also
backport this change.
[ Test Plan ]
Check that our preinstalled RISC-V image boots with more than 128 harts.
[ Where problems could occur ]
Bugs in OpenSBI may lead to boot failure or to crashes at runtime.
[ Other Info ]
n/a
** Affects: opensbi (Ubuntu)
Importance: Medium
Assignee: Heinrich Schuchardt (xypron)
Status: Confirmed
** Affects: opensbi (Ubuntu Resolute)
Importance: Undecided
Assignee: Heinrich Schuchardt (xypron)
Status: New
** Affects: opensbi (Ubuntu Stonking)
Importance: Medium
Assignee: Heinrich Schuchardt (xypron)
Status: Confirmed
** Changed in: opensbi (Ubuntu)
Assignee: (unassigned) => Heinrich Schuchardt (xypron)
** Changed in: opensbi (Ubuntu)
Importance: Undecided => Medium
** Changed in: opensbi (Ubuntu)
Status: New => Confirmed
** Also affects: opensbi (Ubuntu Resolute)
Importance: Undecided
Status: New
** Also affects: opensbi (Ubuntu Stonking)
Importance: Medium
Assignee: Heinrich Schuchardt (xypron)
Status: Confirmed
** Summary changed:
- Increase number of supported harts
+ [SRU] Increase number of supported harts
** Changed in: opensbi (Ubuntu Resolute)
Assignee: (unassigned) => Heinrich Schuchardt (xypron)
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https://bugs.launchpad.net/bugs/2160037
Title:
[SRU] Increase number of supported harts
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