mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 07:04:24 +00:00
Code Issues Releases Wiki Activity

perf/x86/intel/pt: Fix address filter config for 32-bit kernel

Browse source 
Change from shifting 'unsigned long' to 'u64' to prevent the config bits
being lost on a 32-bit kernel.

Fixes: eadf48cab4 ("perf/x86/intel/pt: Add support for address range filtering in PT")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220131072453.2839535-5-adrian.hunter@intel.com
This commit is contained in:
Adrian Hunter 2022-01-31 09:24:52 +02:00 committed by Peter Zijlstra
parent d680ff24e9
commit e5524bf104
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/x86/events/intel/pt.c
View file

@ -474,7 +474,7 @@ static u64 pt_config_filters(struct perf_event *event)
pt->filters.filter[range].msr_b = filter->msr_b;
}
rtit_ctl |= filter->config << pt_address_ranges[range].reg_off;
rtit_ctl |= (u64)filter->config << pt_address_ranges[range].reg_off;
}
return rtit_ctl;