linux-kernel - [PATCH v7 12/13] selftests/resctrl: Disable MBA and MBM tests for AMD

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: <1549767042-95827-13-git-send-email-fenghua.yu@intel.com>
Date:   Sat,  9 Feb 2019 18:50:41 -0800
From:   Fenghua Yu <fenghua.yu@...el.com>
To:     "Thomas Gleixner" <tglx@...utronix.de>,
        "Ingo Molnar" <mingo@...hat.com>, "Borislav Petkov" <bp@...en8.de>,
        "H Peter Anvin" <hpa@...or.com>, "Tony Luck" <tony.luck@...el.com>,
        "Reinette Chatre" <reinette.chatre@...el.com>,
        "Ravi V Shankar" <ravi.v.shankar@...el.com>,
        "Xiaochen Shen" <xiaochen.shen@...el.com>,
        "Arshiya Hayatkhan Pathan" <arshiya.hayatkhan.pathan@...el.com>,
        "Sai Praneeth Prakhya" <sai.praneeth.prakhya@...el.com>,
        "Babu Moger" <babu.moger@....com>
Cc:     "linux-kernel" <linux-kernel@...r.kernel.org>,
        Fenghua Yu <fenghua.yu@...el.com>
Subject: [PATCH v7 12/13] selftests/resctrl: Disable MBA and MBM tests for AMD

From: Babu Moger <babu.moger@....com>

For now, disable MBA and MBM tests for AMD. Deciding test pass/fail
is not clear right now. We can enable when we have some clarity.

Signed-off-by: Babu Moger <babu.moger@....com>
Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
---
 tools/testing/selftests/resctrl/cat_test.c      | 2 +-
 tools/testing/selftests/resctrl/resctrl_tests.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index 1a0f77e4f7bf..264bf2325f9e 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -69,7 +69,7 @@ static void show_cache_info(unsigned long sum_llc_perf_miss, int no_of_bits,
 	printf("Allocated cache lines: %lu \t", allocated_cache_lines);
 	printf("Percent diff=%d \t", abs((int)diff_percent));
 
-	if (abs((int)diff_percent) > MAX_DIFF_PERCENT)
+	if (genuine_intel && (abs((int)diff_percent) > MAX_DIFF_PERCENT))
 		printf("Failed\n");
 	else
 		printf("Passed\n");
diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index 1d9adcfbdb4c..620be40b8c01 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -197,7 +197,7 @@ int main(int argc, char **argv)
 	sprintf(bw_report, "reads");
 	sprintf(bm_type, "fill_buf");
 
-	if (mbm_test) {
+	if (genuine_intel && mbm_test) {
 		printf("\nMBM BW Change Starting..\n");
 		if (!has_ben)
 			sprintf(benchmark_cmd[5], "%s", "mbm");
@@ -207,7 +207,7 @@ int main(int argc, char **argv)
 		mbm_test_cleanup();
 	}
 
-	if (mba_test) {
+	if (genuine_intel && mba_test) {
 		printf("\nMBA Schemata Change Starting..\n");
 		if (!has_ben)
 			sprintf(benchmark_cmd[5], "%s", "mba");
-- 
2.7.4