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| author | Andi Kleen <ak@linux.intel.com> | 2021-12-15 12:40:29 -0800 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-01-18 12:09:49 +0100 |
| commit | 8c16dc047b5dd8f7b3bf4584fa75733ea0dde7dc (patch) | |
| tree | fda5f034b2e7c8d18ee79a72d1c09a239ab88aaf /kernel | |
| parent | 5a4487f9ef5ef2fdb3215cadf0a9c3e5e8678634 (diff) | |
| download | lwn-8c16dc047b5dd8f7b3bf4584fa75733ea0dde7dc.tar.gz lwn-8c16dc047b5dd8f7b3bf4584fa75733ea0dde7dc.zip | |
x86/perf: Avoid warning for Arch LBR without XSAVE
Some hypervisors support Arch LBR, but without the LBR XSAVE support.
The current Arch LBR init code prints a warning when the xsave size (0) is
unexpected. Avoid printing the warning for the "no LBR XSAVE" case.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211215204029.150686-1-ak@linux.intel.com
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions