linux-kernel - [PATCH V6 23/25] perf/x86/msr: Add Alder Lake CPU support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1618237865-33448-24-git-send-email-kan.liang@linux.intel.com>
Date:   Mon, 12 Apr 2021 07:31:03 -0700
From:   kan.liang@...ux.intel.com
To:     peterz@...radead.org, mingo@...nel.org,
        linux-kernel@...r.kernel.org
Cc:     acme@...nel.org, tglx@...utronix.de, bp@...en8.de,
        namhyung@...nel.org, jolsa@...hat.com, ak@...ux.intel.com,
        yao.jin@...ux.intel.com, alexander.shishkin@...ux.intel.com,
        adrian.hunter@...el.com, ricardo.neri-calderon@...ux.intel.com,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V6 23/25] perf/x86/msr: Add Alder Lake CPU support

From: Kan Liang <kan.liang@...ux.intel.com>

PPERF and SMI_COUNT MSRs are also supported on Alder Lake.

The External Design Specification (EDS) is not published yet. It comes
from an authoritative internal source.

The patch has been tested on real hardware.

Reviewed-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 arch/x86/events/msr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/events/msr.c b/arch/x86/events/msr.c
index 680404c..c853b28 100644
--- a/arch/x86/events/msr.c
+++ b/arch/x86/events/msr.c
@@ -100,6 +100,8 @@ static bool test_intel(int idx, void *data)
 	case INTEL_FAM6_TIGERLAKE_L:
 	case INTEL_FAM6_TIGERLAKE:
 	case INTEL_FAM6_ROCKETLAKE:
+	case INTEL_FAM6_ALDERLAKE:
+	case INTEL_FAM6_ALDERLAKE_L:
 		if (idx == PERF_MSR_SMI || idx == PERF_MSR_PPERF)
 			return true;
 		break;
-- 
2.7.4