From: Gavin Shan <gshan@redhat.com>
To: kvmarm@lists.cs.columbia.edu
Cc: linux-kernel@vger.kernel.org, maz@kernel.org, will@kernel.org,
pbonzini@redhat.com, james.morse@arm.com, mark.rutland@arm.com,
Jonathan.Cameron@huawei.com, shan.gavin@gmail.com
Subject: [PATCH v3 21/21] KVM: selftests: Add SDEI test case
Date: Fri, 7 May 2021 16:31:24 +0800 [thread overview]
Message-ID: <20210507083124.43347-22-gshan@redhat.com> (raw)
In-Reply-To: <20210507083124.43347-1-gshan@redhat.com>
This adds SDEI test case into selftests where the various hypercalls
are issued to kvm private event (0x40200000) and then ensure that's
completed without error. Note that two vCPUs are started up by default
to run same consequence. Actually, it's simulating what SDEI client
driver does and the following hypercalls are issued in sequence:
SDEI_1_0_FN_SDEI_VERSION (probing SDEI capability)
SDEI_1_0_FN_SDEI_PE_UNMASK (CPU online)
SDEI_1_0_FN_SDEI_PRIVATE_RESET (restart SDEI)
SDEI_1_0_FN_SDEI_SHARED_RESET
SDEI_1_0_FN_SDEI_EVENT_GET_INFO (register event)
SDEI_1_0_FN_SDEI_EVENT_GET_INFO
SDEI_1_0_FN_SDEI_EVENT_GET_INFO
SDEI_1_0_FN_SDEI_EVENT_REGISTER
SDEI_1_0_FN_SDEI_EVENT_ENABLE (enable event)
SDEI_1_0_FN_SDEI_EVENT_DISABLE (disable event)
SDEI_1_0_FN_SDEI_EVENT_UNREGISTER (unregister event)
SDEI_1_0_FN_SDEI_PE_MASK (CPU offline)
Signed-off-by: Gavin Shan <gshan@redhat.com>
---
tools/testing/selftests/kvm/Makefile | 1 +
tools/testing/selftests/kvm/aarch64/sdei.c | 172 +++++++++++++++++++++
2 files changed, 173 insertions(+)
create mode 100644 tools/testing/selftests/kvm/aarch64/sdei.c
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index e439d027939d..ddca67b420b2 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -79,6 +79,7 @@ TEST_GEN_PROGS_x86_64 += steal_time
TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list
TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list-sve
+TEST_GEN_PROGS_aarch64 += aarch64/sdei
TEST_GEN_PROGS_aarch64 += aarch64/vgic_init
TEST_GEN_PROGS_aarch64 += demand_paging_test
TEST_GEN_PROGS_aarch64 += dirty_log_test
diff --git a/tools/testing/selftests/kvm/aarch64/sdei.c b/tools/testing/selftests/kvm/aarch64/sdei.c
new file mode 100644
index 000000000000..1a4cdae84ad5
--- /dev/null
+++ b/tools/testing/selftests/kvm/aarch64/sdei.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM SDEI test
+ *
+ * Copyright (C) 2021 Red Hat, Inc.
+ *
+ * Author(s): Gavin Shan <gshan@redhat.com>
+ */
+#define _GNU_SOURCE
+#include <stdio.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "asm/kvm_sdei.h"
+#include "linux/arm_sdei.h"
+
+#define NR_VCPUS 2
+#define SDEI_GPA_BASE (1 << 30)
+
+struct sdei_event {
+ uint32_t cpu;
+ uint64_t version;
+ uint64_t num;
+ uint64_t type;
+ uint64_t priority;
+ uint64_t signaled;
+};
+
+static struct sdei_event sdei_events[NR_VCPUS];
+
+static int64_t smccc(uint32_t func, uint64_t arg0, uint64_t arg1,
+ uint64_t arg2, uint64_t arg3, uint64_t arg4)
+{
+ int64_t ret;
+
+ asm volatile(
+ "mov x0, %1\n"
+ "mov x1, %2\n"
+ "mov x2, %3\n"
+ "mov x3, %4\n"
+ "mov x4, %5\n"
+ "mov x5, %6\n"
+ "hvc #0\n"
+ "mov %0, x0\n"
+ : "=r" (ret) : "r" (func), "r" (arg0), "r" (arg1),
+ "r" (arg2), "r" (arg3), "r" (arg4) :
+ "x0", "x1", "x2", "x3", "x4", "x5");
+
+ return ret;
+}
+
+static inline bool is_error(int64_t ret)
+{
+ if (ret == SDEI_NOT_SUPPORTED ||
+ ret == SDEI_INVALID_PARAMETERS ||
+ ret == SDEI_DENIED ||
+ ret == SDEI_PENDING ||
+ ret == SDEI_OUT_OF_RESOURCE)
+ return true;
+
+ return false;
+}
+
+static void guest_code(int cpu)
+{
+ struct sdei_event *event = &sdei_events[cpu];
+ int64_t ret;
+
+ /* CPU */
+ event->cpu = cpu;
+ event->num = KVM_SDEI_DEFAULT_NUM;
+ GUEST_ASSERT(cpu < NR_VCPUS);
+
+ /* Version */
+ ret = smccc(SDEI_1_0_FN_SDEI_VERSION, 0, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+ GUEST_ASSERT(SDEI_VERSION_MAJOR(ret) == 1);
+ GUEST_ASSERT(SDEI_VERSION_MINOR(ret) == 0);
+ event->version = ret;
+
+ /* CPU unmasking */
+ ret = smccc(SDEI_1_0_FN_SDEI_PE_UNMASK, 0, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+
+ /* Reset */
+ ret = smccc(SDEI_1_0_FN_SDEI_PRIVATE_RESET, 0, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+ ret = smccc(SDEI_1_0_FN_SDEI_SHARED_RESET, 0, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+
+ /* Event properties */
+ ret = smccc(SDEI_1_0_FN_SDEI_EVENT_GET_INFO,
+ event->num, SDEI_EVENT_INFO_EV_TYPE, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+ event->type = ret;
+
+ ret = smccc(SDEI_1_0_FN_SDEI_EVENT_GET_INFO,
+ event->num, SDEI_EVENT_INFO_EV_PRIORITY, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+ event->priority = ret;
+
+ ret = smccc(SDEI_1_0_FN_SDEI_EVENT_GET_INFO,
+ event->num, SDEI_EVENT_INFO_EV_SIGNALED, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+ event->signaled = ret;
+
+ /* Event registration */
+ ret = smccc(SDEI_1_0_FN_SDEI_EVENT_REGISTER,
+ event->num, 0, 0, SDEI_EVENT_REGISTER_RM_ANY, 0);
+ GUEST_ASSERT(!is_error(ret));
+
+ /* Event enablement */
+ ret = smccc(SDEI_1_0_FN_SDEI_EVENT_ENABLE,
+ event->num, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+
+ /* Event disablement */
+ ret = smccc(SDEI_1_0_FN_SDEI_EVENT_DISABLE,
+ event->num, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+
+ /* Event unregistration */
+ ret = smccc(SDEI_1_0_FN_SDEI_EVENT_UNREGISTER,
+ event->num, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+
+ /* CPU masking */
+ ret = smccc(SDEI_1_0_FN_SDEI_PE_MASK, 0, 0, 0, 0, 0);
+ GUEST_ASSERT(!is_error(ret));
+
+ GUEST_DONE();
+}
+
+int main(int argc, char **argv)
+{
+ struct kvm_vm *vm;
+ int i;
+
+ if (!kvm_check_cap(KVM_CAP_ARM_SDEI)) {
+ pr_info("SDEI not supported\n");
+ return 0;
+ }
+
+ vm = vm_create_default(0, 0, guest_code);
+ ucall_init(vm, NULL);
+
+ for (i = 1; i < NR_VCPUS; i++)
+ vm_vcpu_add_default(vm, i, guest_code);
+
+ for (i = 0; i < NR_VCPUS; i++) {
+ vcpu_args_set(vm, i, 1, i);
+ vcpu_run(vm, i);
+
+ sync_global_from_guest(vm, sdei_events[i]);
+ pr_info("--------------------------------\n");
+ pr_info("CPU: %d\n",
+ sdei_events[i].cpu);
+ pr_info("Version: %ld.%ld (0x%lx)\n",
+ SDEI_VERSION_MAJOR(sdei_events[i].version),
+ SDEI_VERSION_MINOR(sdei_events[i].version),
+ SDEI_VERSION_VENDOR(sdei_events[i].version));
+ pr_info("Event: 0x%08lx\n",
+ sdei_events[i].num);
+ pr_info("Type: %s\n",
+ sdei_events[i].type ? "shared" : "private");
+ pr_info("Signaled: %s\n",
+ sdei_events[i].signaled ? "yes" : "no");
+ }
+
+ return 0;
+}
--
2.23.0
prev parent reply other threads:[~2021-05-07 6:33 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-07 8:31 [PATCH v3 00/21] Support SDEI Virtualization Gavin Shan
2021-05-07 8:31 ` [PATCH v3 01/21] KVM: arm64: Introduce template for inline functions Gavin Shan
2021-05-07 8:31 ` [PATCH v3 02/21] KVM: arm64: Add SDEI virtualization infrastructure Gavin Shan
2021-05-07 8:31 ` [PATCH v3 03/21] KVM: arm64: Support SDEI_VERSION hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 04/21] KVM: arm64: Support SDEI_EVENT_REGISTER hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 05/21] KVM: arm64: Support SDEI_EVENT_{ENABLE, DISABLE} hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 06/21] KVM: arm64: Support SDEI_EVENT_CONTEXT hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 07/21] KVM: arm64: Support SDEI_EVENT_UNREGISTER hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 08/21] KVM: arm64: Support SDEI_EVENT_STATUS hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 09/21] KVM: arm64: Support SDEI_EVENT_GET_INFO hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 10/21] KVM: arm64: Support SDEI_EVENT_ROUTING_SET hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 11/21] KVM: arm64: Support SDEI_PE_{MASK, UNMASK} hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 12/21] KVM: arm64: Support SDEI_{PRIVATE, SHARED}_RESET hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 13/21] KVM: arm64: Impment SDEI event delivery Gavin Shan
2021-05-07 8:31 ` [PATCH v3 14/21] KVM: arm64: Support SDEI_EVENT_{COMPLETE, COMPLETE_AND_RESUME} hypercall Gavin Shan
2021-05-07 8:31 ` [PATCH v3 15/21] KVM: arm64: Support SDEI event notifier Gavin Shan
2021-05-07 8:31 ` [PATCH v3 16/21] KVM: arm64: Support SDEI ioctl commands on VM Gavin Shan
2021-05-07 8:31 ` [PATCH v3 17/21] KVM: arm64: Support SDEI ioctl commands on vCPU Gavin Shan
2021-05-07 8:31 ` [PATCH v3 18/21] KVM: arm64: Support SDEI event injection Gavin Shan
2021-05-07 8:31 ` [PATCH v3 19/21] KVM: arm64: Support SDEI event cancellation Gavin Shan
2021-05-07 8:31 ` [PATCH v3 20/21] KVM: arm64: Export SDEI capability Gavin Shan
2021-05-07 8:31 ` Gavin Shan [this message]
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