Received-SPF: pass (google.com: domain of linux-kernel+bounces-2518-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3;
From: Itaru Kitayama <itaru.kitayama@linux.dev>
Date: Sun, 17 Dec 2023 18:41:08 +0900
Subject: [PATCH] selftest: kvm: kvm_page_table_test: change default guest
 memory down to 128MB
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Message-Id: <20231217-selftest-dev-v1-1-52c338212fe8@linux.dev>
To: Paolo Bonzini <pbonzini@redhat.com>, Shuah Khan <shuah@kernel.org>
Cc: kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, 
 linux-kernel@vger.kernel.org, Itaru Kitayama <itaru.kitayama@linux.dev>

kvm_page_table_test's current default guest memory is set to 1GB,
however on a 4GB of system memory this setting causes an OOM event.
While it is able to control the test program arguments using an
environment variable, KSELFTEST_KVM_PAGE_TABLE_TEST_ARGS, it is not
intuitively clear for a selftest users the above variable exists, change
the default guest memory down to 128MB so that small systems can run
this test without seeing an OOM.

---


Signed-off-by: Itaru Kitayama <itaru.kitayama@linux.dev>
---
 tools/testing/selftests/kvm/kvm_page_table_test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/kvm_page_table_test.c b/tools/testing/selftests/kvm/kvm_page_table_test.c
index 69f26d80c821..3cef22642bcb 100644
--- a/tools/testing/selftests/kvm/kvm_page_table_test.c
+++ b/tools/testing/selftests/kvm/kvm_page_table_test.c
@@ -24,8 +24,8 @@
 
 #define TEST_MEM_SLOT_INDEX             1
 
-/* Default size(1GB) of the memory for testing */
-#define DEFAULT_TEST_MEM_SIZE		(1 << 30)
+/* Default size(128MB) of the memory for testing */
+#define DEFAULT_TEST_MEM_SIZE          (1 << 27)
 
 /* Default guest test virtual memory offset */
 #define DEFAULT_GUEST_TEST_MEM		0xc0000000

---
base-commit: a39b6ac3781d46ba18193c9dbb2110f31e9bffe9
change-id: 20231217-selftest-dev-c769544c303d

Best regards,
-- 
Itaru Kitayama <itaru.kitayama@linux.dev>