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From: Janosch Frank <frankja@linux.ibm.com>
To: kvm@vger.kernel.org, nrb@linux.ibm.com
Cc: thuth@redhat.com, imbrenda@linux.ibm.com
Subject: [kvm-unit-tests PATCH 5/8] s390x: uv-host: Add cpu number check
Date: Thu, 23 Mar 2023 10:39:10 +0000	[thread overview]
Message-ID: <20230323103913.40720-6-frankja@linux.ibm.com> (raw)
In-Reply-To: <20230323103913.40720-1-frankja@linux.ibm.com>

We should only run a test that needs more than one cpu if a sufficient
number of cpus are available.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
 s390x/uv-host.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/s390x/uv-host.c b/s390x/uv-host.c
index 0f550415..42ea2a53 100644
--- a/s390x/uv-host.c
+++ b/s390x/uv-host.c
@@ -546,11 +546,15 @@ static void test_init(void)
 	       "storage below 2GB");
 	uvcb_init.stor_origin = mem;
 
-	smp_cpu_setup(1, PSW_WITH_CUR_MASK(cpu_loop));
-	rc = uv_call(0, (uint64_t)&uvcb_init);
-	report(rc == 1 && uvcb_init.header.rc == 0x102,
-	       "too many running cpus");
-	smp_cpu_stop(1);
+	if (smp_query_num_cpus() > 1) {
+		smp_cpu_setup(1, PSW_WITH_CUR_MASK(cpu_loop));
+		rc = uv_call(0, (uint64_t)&uvcb_init);
+		report(rc == 1 && uvcb_init.header.rc == 0x102,
+		       "too many running cpus");
+		smp_cpu_stop(1);
+	} else {
+		report_skip("Not enough cpus for 0x102 test");
+	}
 
 	rc = uv_call(0, (uint64_t)&uvcb_init);
 	report(rc == 0 && uvcb_init.header.rc == UVC_RC_EXECUTED, "successful");
-- 
2.34.1


  parent reply	other threads:[~2023-03-23 10:44 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-23 10:39 [kvm-unit-tests PATCH 0/8] s390x: uv-host: Fixups and extensions part 1 Janosch Frank
2023-03-23 10:39 ` [kvm-unit-tests PATCH 1/8] s390x: uv-host: Fix UV init test memory allocation Janosch Frank
2023-03-23 12:29   ` Nico Boehr
2023-03-23 10:39 ` [kvm-unit-tests PATCH 2/8] s390x: uv-host: Check for sufficient amount of memory Janosch Frank
2023-03-23 12:31   ` Nico Boehr
2023-03-23 10:39 ` [kvm-unit-tests PATCH 3/8] s390x: Add PV tests to unittests.cfg Janosch Frank
2023-03-23 10:39 ` [kvm-unit-tests PATCH 4/8] s390x: uv-host: Beautify code Janosch Frank
2023-03-23 12:52   ` Nico Boehr
2023-03-23 10:39 ` Janosch Frank [this message]
2023-03-23 12:55   ` [kvm-unit-tests PATCH 5/8] s390x: uv-host: Add cpu number check Nico Boehr
2023-03-23 10:39 ` [kvm-unit-tests PATCH 6/8] s390x: uv-host: Fix create guest variable storage prefix check Janosch Frank
2023-03-23 13:01   ` Nico Boehr
2023-03-23 10:39 ` [kvm-unit-tests PATCH 7/8] s390x: uv-host: Properly handle config creation errors Janosch Frank
2023-03-23 13:19   ` Nico Boehr
2023-03-23 14:02     ` Janosch Frank
2023-03-23 10:39 ` [kvm-unit-tests PATCH 8/8] s390x: uv-host: Fence access checks when UV debug is enabled Janosch Frank
2023-03-23 13:21   ` Nico Boehr

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