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| author | Eric DeVolder <[email protected]> | 2023-03-27 19:10:26 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <[email protected]> | 2023-03-30 09:07:30 +0000 |
| commit | fed8d8773b8ea68ad99d9eee8c8343bef9da2c2c (patch) | |
| tree | ffcf0dc62541c18dc48856e67c114988fad93b12 /tools/perf/scripts/python/powerpc-hcalls.py | |
| parent | x86/ACPI/boot: Use FADT version to check support for online capable (diff) | |
| download | kernel-fed8d8773b8ea68ad99d9eee8c8343bef9da2c2c.tar.gz kernel-fed8d8773b8ea68ad99d9eee8c8343bef9da2c2c.zip | |
x86/acpi/boot: Correct acpi_is_processor_usable() check
The logic in acpi_is_processor_usable() requires the online capable
bit be set for hotpluggable CPUs. The online capable bit has been
introduced in ACPI 6.3.
However, for ACPI revisions < 6.3 which do not support that bit, CPUs
should be reported as usable, not the other way around.
Reverse the check.
[ bp: Rewrite commit message. ]
Fixes: e2869bd7af60 ("x86/acpi/boot: Do not register processors that cannot be onlined for x2APIC")
Suggested-by: Miguel Luis <[email protected]>
Suggested-by: Boris Ostrovsky <[email protected]>
Signed-off-by: Eric DeVolder <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Tested-by: David R <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/powerpc-hcalls.py')
0 files changed, 0 insertions, 0 deletions