linux-kernel - [RFC V2 PATCH 8/8] selftests: kvm: Add private memory test for SEV VMs

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Message-ID: <20220830224259.412342-9-vannapurve@google.com>
Date:   Tue, 30 Aug 2022 22:42:59 +0000
From:   Vishal Annapurve <vannapurve@...gle.com>
To:     x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Cc:     pbonzini@...hat.com, vkuznets@...hat.com, wanpengli@...cent.com,
        jmattson@...gle.com, joro@...tes.org, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com,
        hpa@...or.com, shuah@...nel.org, yang.zhong@...el.com,
        drjones@...hat.com, ricarkol@...gle.com, aaronlewis@...gle.com,
        wei.w.wang@...el.com, kirill.shutemov@...ux.intel.com,
        corbet@....net, hughd@...gle.com, jlayton@...nel.org,
        bfields@...ldses.org, akpm@...ux-foundation.org,
        chao.p.peng@...ux.intel.com, yu.c.zhang@...ux.intel.com,
        jun.nakajima@...el.com, dave.hansen@...el.com,
        michael.roth@....com, qperret@...gle.com, steven.price@....com,
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        axelrasmussen@...gle.com, maciej.szmigiero@...cle.com,
        mizhang@...gle.com, bgardon@...gle.com,
        Vishal Annapurve <vannapurve@...gle.com>
Subject: [RFC V2 PATCH 8/8] selftests: kvm: Add private memory test for SEV VMs

Add a selftest placeholder for executing private memory
conversion tests with SEV VMs.

Signed-off-by: Vishal Annapurve <vannapurve@...gle.com>
---
 tools/testing/selftests/kvm/.gitignore        |  1 +
 tools/testing/selftests/kvm/Makefile          |  1 +
 .../kvm/x86_64/sev_private_mem_test.c         | 21 +++++++++++++++++++
 3 files changed, 23 insertions(+)
 create mode 100644 tools/testing/selftests/kvm/x86_64/sev_private_mem_test.c

diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore
index 095b67dc632e..757d4cac19b4 100644
--- a/tools/testing/selftests/kvm/.gitignore
+++ b/tools/testing/selftests/kvm/.gitignore
@@ -37,6 +37,7 @@
 /x86_64/set_sregs_test
 /x86_64/sev_all_boot_test
 /x86_64/sev_migrate_tests
+/x86_64/sev_private_mem_test
 /x86_64/smm_test
 /x86_64/state_test
 /x86_64/svm_vmcall_test
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 36874fedff4a..3f8030c46b72 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -98,6 +98,7 @@ TEST_GEN_PROGS_x86_64 += x86_64/pmu_event_filter_test
 TEST_GEN_PROGS_x86_64 += x86_64/private_mem_test
 TEST_GEN_PROGS_x86_64 += x86_64/set_boot_cpu_id
 TEST_GEN_PROGS_x86_64 += x86_64/set_sregs_test
+TEST_GEN_PROGS_x86_64 += x86_64/sev_private_mem_test
 TEST_GEN_PROGS_x86_64 += x86_64/smm_test
 TEST_GEN_PROGS_x86_64 += x86_64/state_test
 TEST_GEN_PROGS_x86_64 += x86_64/vmx_preemption_timer_test
diff --git a/tools/testing/selftests/kvm/x86_64/sev_private_mem_test.c b/tools/testing/selftests/kvm/x86_64/sev_private_mem_test.c
new file mode 100644
index 000000000000..2c8edbaef627
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86_64/sev_private_mem_test.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022, Google LLC.
+ */
+#define _GNU_SOURCE /* for program_invocation_short_name */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <test_util.h>
+#include <kvm_util.h>
+#include <private_mem_test_helper.h>
+
+int main(int argc, char *argv[])
+{
+	/* Tell stdout not to buffer its content */
+	setbuf(stdout, NULL);
+
+	execute_sev_memory_conversion_tests();
+	return 0;
+}
-- 
2.37.2.672.g94769d06f0-goog