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perf/x86/intel/pt: Fix address filter config for 32-bit kernel
author
Adrian Hunter
<adrian.hunter@intel.com>
Mon, 31 Jan 2022 07:24:52 +0000
(09:24 +0200)
committer
Peter Zijlstra
<peterz@infradead.org>
Wed, 2 Feb 2022 12:11:43 +0000
(13:11 +0100)
Change from shifting 'unsigned long' to 'u64' to prevent the config bits
being lost on a 32-bit kernel.
Fixes:
eadf48cab4b6b0
("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
arch/x86/events/intel/pt.c
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diff --git
a/arch/x86/events/intel/pt.c
b/arch/x86/events/intel/pt.c
index 93676a5b66dba0ac9fe7460d3428ebf4d531cbdf..f061dc2bd5f091beea2e5de0b54b4a6bdc9529f8 100644
(file)
--- a/
arch/x86/events/intel/pt.c
+++ b/
arch/x86/events/intel/pt.c
@@
-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;