From e5524bf1047eb3b3f3f33b5f59897ba67b3ade87 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 31 Jan 2022 09:24:52 +0200 Subject: [PATCH] perf/x86/intel/pt: Fix address filter config for 32-bit kernel 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 Signed-off-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20220131072453.2839535-5-adrian.hunter@intel.com --- arch/x86/events/intel/pt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index 93676a5b66dba..f061dc2bd5f09 100644 --- 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; -- 2.30.2