From: Vishal Annapurve <vannapurve@google.com>
To: x86@kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
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Vishal Annapurve <vannapurve@google.com>
Subject: [RFC V2 PATCH 7/8] selftests: kvm: Refactor testing logic for private memory
Date: Tue, 30 Aug 2022 22:42:58 +0000 [thread overview]
Message-ID: <20220830224259.412342-8-vannapurve@google.com> (raw)
In-Reply-To: <20220830224259.412342-1-vannapurve@google.com>
Move all of the logic to execute memory conversion tests into library to
allow sharing the logic between normal non-confidential VMs and SEV VMs.
Signed-off-by: Vishal Annapurve <vannapurve@google.com>
---
tools/testing/selftests/kvm/Makefile | 1 +
.../include/x86_64/private_mem_test_helper.h | 13 +
.../kvm/lib/x86_64/private_mem_test_helper.c | 273 ++++++++++++++++++
.../selftests/kvm/x86_64/private_mem_test.c | 246 +---------------
4 files changed, 289 insertions(+), 244 deletions(-)
create mode 100644 tools/testing/selftests/kvm/include/x86_64/private_mem_test_helper.h
create mode 100644 tools/testing/selftests/kvm/lib/x86_64/private_mem_test_helper.c
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index c5fc8ea2c843..36874fedff4a 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -52,6 +52,7 @@ LIBKVM_x86_64 += lib/x86_64/apic.c
LIBKVM_x86_64 += lib/x86_64/handlers.S
LIBKVM_x86_64 += lib/x86_64/perf_test_util.c
LIBKVM_x86_64 += lib/x86_64/private_mem.c
+LIBKVM_x86_64 += lib/x86_64/private_mem_test_helper.c
LIBKVM_x86_64 += lib/x86_64/processor.c
LIBKVM_x86_64 += lib/x86_64/svm.c
LIBKVM_x86_64 += lib/x86_64/ucall.c
diff --git a/tools/testing/selftests/kvm/include/x86_64/private_mem_test_helper.h b/tools/testing/selftests/kvm/include/x86_64/private_mem_test_helper.h
new file mode 100644
index 000000000000..31bc559cd813
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86_64/private_mem_test_helper.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_PRIVATE_MEM_TEST_HELPER_H
+#define SELFTEST_KVM_PRIVATE_MEM_TEST_HELPER_H
+
+void execute_memory_conversion_tests(void);
+
+void execute_sev_memory_conversion_tests(void);
+
+#endif // SELFTEST_KVM_PRIVATE_MEM_TEST_HELPER_H
diff --git a/tools/testing/selftests/kvm/lib/x86_64/private_mem_test_helper.c b/tools/testing/selftests/kvm/lib/x86_64/private_mem_test_helper.c
new file mode 100644
index 000000000000..ce53bef7896e
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86_64/private_mem_test_helper.c
@@ -0,0 +1,273 @@
+// 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.h>
+#include <private_mem_test_helper.h>
+#include <processor.h>
+#include <sev.h>
+
+#define VM_MEMSLOT0_PAGES (512 * 10)
+
+#define TEST_AREA_SLOT 10
+#define TEST_AREA_GPA 0xC0000000
+#define TEST_AREA_SIZE (2 * 1024 * 1024)
+#define GUEST_TEST_MEM_OFFSET (1 * 1024 * 1024)
+#define GUEST_TEST_MEM_SIZE (10 * 4096)
+
+#define VM_STAGE_PROCESSED(x) pr_info("Processed stage %s\n", #x)
+
+#define TEST_MEM_DATA_PAT1 0x66
+#define TEST_MEM_DATA_PAT2 0x99
+#define TEST_MEM_DATA_PAT3 0x33
+#define TEST_MEM_DATA_PAT4 0xaa
+#define TEST_MEM_DATA_PAT5 0x12
+
+static bool verify_mem_contents(void *mem, uint32_t size, uint8_t pat)
+{
+ uint8_t *buf = (uint8_t *)mem;
+
+ for (uint32_t i = 0; i < size; i++) {
+ if (buf[i] != pat)
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * Add custom implementation for memset to avoid using standard/builtin memset
+ * which may use features like SSE/GOT that don't work with guest vm execution
+ * within selftests.
+ */
+void *memset(void *mem, int byte, size_t size)
+{
+ uint8_t *buf = (uint8_t *)mem;
+
+ for (uint32_t i = 0; i < size; i++)
+ buf[i] = byte;
+
+ return buf;
+}
+
+static void populate_test_area(void *test_area_base, uint64_t pat)
+{
+ memset(test_area_base, pat, TEST_AREA_SIZE);
+}
+
+static void populate_guest_test_mem(void *guest_test_mem, uint64_t pat)
+{
+ memset(guest_test_mem, pat, GUEST_TEST_MEM_SIZE);
+}
+
+static bool verify_test_area(void *test_area_base, uint64_t area_pat,
+ uint64_t guest_pat)
+{
+ void *test_area1_base = test_area_base;
+ uint64_t test_area1_size = GUEST_TEST_MEM_OFFSET;
+ void *guest_test_mem = test_area_base + test_area1_size;
+ uint64_t guest_test_size = GUEST_TEST_MEM_SIZE;
+ void *test_area2_base = guest_test_mem + guest_test_size;
+ uint64_t test_area2_size = (TEST_AREA_SIZE - (GUEST_TEST_MEM_OFFSET +
+ GUEST_TEST_MEM_SIZE));
+
+ return (verify_mem_contents(test_area1_base, test_area1_size, area_pat) &&
+ verify_mem_contents(guest_test_mem, guest_test_size, guest_pat) &&
+ verify_mem_contents(test_area2_base, test_area2_size, area_pat));
+}
+
+#define GUEST_STARTED 0
+#define GUEST_PRIVATE_MEM_POPULATED 1
+#define GUEST_SHARED_MEM_POPULATED 2
+#define GUEST_PRIVATE_MEM_POPULATED2 3
+#define GUEST_IMPLICIT_MEM_CONV1 4
+#define GUEST_IMPLICIT_MEM_CONV2 5
+
+/*
+ * Run memory conversion tests supporting two types of conversion:
+ * 1) Explicit: Execute KVM hypercall to map/unmap gpa range which will cause
+ * userspace exit to back/unback private memory. Subsequent accesses by guest
+ * to the gpa range will not cause exit to userspace.
+ * 2) Implicit: Execute KVM hypercall to update memory access to a gpa range as
+ * private/shared without exiting to userspace. Subsequent accesses by guest
+ * to the gpa range will result in KVM EPT/NPT faults and then exit to
+ * userspace for each page.
+ *
+ * Test memory conversion scenarios with following steps:
+ * 1) Access private memory using private access and verify that memory contents
+ * are not visible to userspace.
+ * 2) Convert memory to shared using explicit/implicit conversions and ensure
+ * that userspace is able to access the shared regions.
+ * 3) Convert memory back to private using explicit/implicit conversions and
+ * ensure that userspace is again not able to access converted private
+ * regions.
+ */
+static void guest_conv_test_fn(bool test_explicit_conv)
+{
+ void *test_area_base = (void *)TEST_AREA_GPA;
+ void *guest_test_mem = (void *)(TEST_AREA_GPA + GUEST_TEST_MEM_OFFSET);
+ uint64_t guest_test_size = GUEST_TEST_MEM_SIZE;
+
+ guest_map_ucall_page_shared();
+ GUEST_SYNC(GUEST_STARTED);
+
+ populate_test_area(test_area_base, TEST_MEM_DATA_PAT1);
+ GUEST_SYNC(GUEST_PRIVATE_MEM_POPULATED);
+ GUEST_ASSERT(verify_test_area(test_area_base, TEST_MEM_DATA_PAT1,
+ TEST_MEM_DATA_PAT1));
+
+ if (test_explicit_conv)
+ guest_update_mem_map(TO_SHARED, (uint64_t)guest_test_mem,
+ (uint64_t)guest_test_mem, guest_test_size);
+ else {
+ guest_update_mem_access(TO_SHARED, (uint64_t)guest_test_mem,
+ (uint64_t)guest_test_mem, guest_test_size);
+ GUEST_SYNC(GUEST_IMPLICIT_MEM_CONV1);
+ }
+
+ populate_guest_test_mem(guest_test_mem, TEST_MEM_DATA_PAT2);
+
+ GUEST_SYNC(GUEST_SHARED_MEM_POPULATED);
+ GUEST_ASSERT(verify_test_area(test_area_base, TEST_MEM_DATA_PAT1,
+ TEST_MEM_DATA_PAT5));
+
+ if (test_explicit_conv)
+ guest_update_mem_map(TO_PRIVATE, (uint64_t)guest_test_mem,
+ (uint64_t)guest_test_mem, guest_test_size);
+ else {
+ guest_update_mem_access(TO_PRIVATE, (uint64_t)guest_test_mem,
+ (uint64_t)guest_test_mem, guest_test_size);
+ GUEST_SYNC(GUEST_IMPLICIT_MEM_CONV2);
+ }
+
+ populate_guest_test_mem(guest_test_mem, TEST_MEM_DATA_PAT3);
+ GUEST_SYNC(GUEST_PRIVATE_MEM_POPULATED2);
+
+ GUEST_ASSERT(verify_test_area(test_area_base, TEST_MEM_DATA_PAT1,
+ TEST_MEM_DATA_PAT3));
+ GUEST_DONE();
+}
+
+static void conv_test_ioexit_fn(struct kvm_vm *vm, uint32_t uc_arg1)
+{
+ void *test_area_hva = addr_gpa2hva(vm, TEST_AREA_GPA);
+ void *guest_test_mem_hva = (test_area_hva + GUEST_TEST_MEM_OFFSET);
+ uint64_t guest_mem_gpa = (TEST_AREA_GPA + GUEST_TEST_MEM_OFFSET);
+ uint64_t guest_test_size = GUEST_TEST_MEM_SIZE;
+
+ switch (uc_arg1) {
+ case GUEST_STARTED:
+ populate_test_area(test_area_hva, TEST_MEM_DATA_PAT4);
+ VM_STAGE_PROCESSED(GUEST_STARTED);
+ break;
+ case GUEST_PRIVATE_MEM_POPULATED:
+ TEST_ASSERT(verify_test_area(test_area_hva, TEST_MEM_DATA_PAT4,
+ TEST_MEM_DATA_PAT4), "failed");
+ VM_STAGE_PROCESSED(GUEST_PRIVATE_MEM_POPULATED);
+ break;
+ case GUEST_SHARED_MEM_POPULATED:
+ TEST_ASSERT(verify_test_area(test_area_hva, TEST_MEM_DATA_PAT4,
+ TEST_MEM_DATA_PAT2), "failed");
+ populate_guest_test_mem(guest_test_mem_hva, TEST_MEM_DATA_PAT5);
+ VM_STAGE_PROCESSED(GUEST_SHARED_MEM_POPULATED);
+ break;
+ case GUEST_PRIVATE_MEM_POPULATED2:
+ TEST_ASSERT(verify_test_area(test_area_hva, TEST_MEM_DATA_PAT4,
+ TEST_MEM_DATA_PAT5), "failed");
+ VM_STAGE_PROCESSED(GUEST_PRIVATE_MEM_POPULATED2);
+ break;
+ case GUEST_IMPLICIT_MEM_CONV1:
+ /*
+ * For first implicit conversion, memory is already private so
+ * mark it private again just to zap the pte entries for the gpa
+ * range, so that subsequent accesses from the guest will
+ * generate ept/npt fault and memory conversion path will be
+ * exercised by KVM.
+ */
+ vm_update_private_mem(vm, guest_mem_gpa, guest_test_size,
+ ALLOCATE_MEM);
+ VM_STAGE_PROCESSED(GUEST_IMPLICIT_MEM_CONV1);
+ break;
+ case GUEST_IMPLICIT_MEM_CONV2:
+ /*
+ * For second implicit conversion, memory is already shared so
+ * mark it shared again just to zap the pte entries for the gpa
+ * range, so that subsequent accesses from the guest will
+ * generate ept/npt fault and memory conversion path will be
+ * exercised by KVM.
+ */
+ vm_update_private_mem(vm, guest_mem_gpa, guest_test_size,
+ UNBACK_MEM);
+ VM_STAGE_PROCESSED(GUEST_IMPLICIT_MEM_CONV2);
+ break;
+ default:
+ TEST_FAIL("Unknown stage %d\n", uc_arg1);
+ break;
+ }
+}
+
+static void guest_explicit_conv_test_fn(void)
+{
+ guest_conv_test_fn(true);
+}
+
+static void guest_implicit_conv_test_fn(void)
+{
+ guest_conv_test_fn(false);
+}
+
+/*
+ * Execute implicit and explicit memory conversion tests with non-confidential
+ * VMs using memslots with private memory.
+ */
+void execute_memory_conversion_tests(void)
+{
+ struct vm_setup_info info;
+ struct test_setup_info *test_info = &info.test_info;
+
+ info.vm_mem_src = VM_MEM_SRC_ANONYMOUS;
+ info.memslot0_pages = VM_MEMSLOT0_PAGES;
+ test_info->test_area_gpa = TEST_AREA_GPA;
+ test_info->test_area_size = TEST_AREA_SIZE;
+ test_info->test_area_slot = TEST_AREA_SLOT;
+ test_info->test_area_mem_src = VM_MEM_SRC_ANONYMOUS;
+ info.ioexit_cb = conv_test_ioexit_fn;
+
+ info.guest_fn = guest_explicit_conv_test_fn;
+ execute_vm_with_private_mem(&info);
+
+ info.guest_fn = guest_implicit_conv_test_fn;
+ execute_vm_with_private_mem(&info);
+}
+
+/*
+ * Execute implicit and explicit memory conversion tests with SEV VMs using
+ * memslots with private memory.
+ */
+void execute_sev_memory_conversion_tests(void)
+{
+ struct vm_setup_info info;
+ struct test_setup_info *test_info = &info.test_info;
+
+ info.vm_mem_src = VM_MEM_SRC_ANONYMOUS;
+ info.memslot0_pages = VM_MEMSLOT0_PAGES;
+ test_info->test_area_gpa = TEST_AREA_GPA;
+ test_info->test_area_size = TEST_AREA_SIZE;
+ test_info->test_area_slot = TEST_AREA_SLOT;
+ test_info->test_area_mem_src = VM_MEM_SRC_ANONYMOUS;
+ info.ioexit_cb = conv_test_ioexit_fn;
+
+ info.policy = SEV_POLICY_NO_DBG;
+ info.guest_fn = guest_explicit_conv_test_fn;
+ execute_sev_vm_with_private_mem(&info);
+
+ info.guest_fn = guest_implicit_conv_test_fn;
+ execute_sev_vm_with_private_mem(&info);
+}
diff --git a/tools/testing/selftests/kvm/x86_64/private_mem_test.c b/tools/testing/selftests/kvm/x86_64/private_mem_test.c
index 52430b97bd0b..49da626e5807 100644
--- a/tools/testing/selftests/kvm/x86_64/private_mem_test.c
+++ b/tools/testing/selftests/kvm/x86_64/private_mem_test.c
@@ -1,263 +1,21 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * tools/testing/selftests/kvm/lib/kvm_util.c
- *
* Copyright (C) 2022, Google LLC.
*/
#define _GNU_SOURCE /* for program_invocation_short_name */
-#include <fcntl.h>
-#include <limits.h>
-#include <sched.h>
-#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/ioctl.h>
-
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-#include <linux/kvm_para.h>
-#include <linux/memfd.h>
#include <test_util.h>
#include <kvm_util.h>
-#include <private_mem.h>
-#include <processor.h>
-
-#define VM_MEMSLOT0_PAGES (512 * 10)
-
-#define TEST_AREA_SLOT 10
-#define TEST_AREA_GPA 0xC0000000
-#define TEST_AREA_SIZE (2 * 1024 * 1024)
-#define GUEST_TEST_MEM_OFFSET (1 * 1024 * 1024)
-#define GUEST_TEST_MEM_SIZE (10 * 4096)
-
-#define VM_STAGE_PROCESSED(x) pr_info("Processed stage %s\n", #x)
-
-#define TEST_MEM_DATA_PAT1 0x66
-#define TEST_MEM_DATA_PAT2 0x99
-#define TEST_MEM_DATA_PAT3 0x33
-#define TEST_MEM_DATA_PAT4 0xaa
-#define TEST_MEM_DATA_PAT5 0x12
-
-static bool verify_mem_contents(void *mem, uint32_t size, uint8_t pat)
-{
- uint8_t *buf = (uint8_t *)mem;
-
- for (uint32_t i = 0; i < size; i++) {
- if (buf[i] != pat)
- return false;
- }
-
- return true;
-}
-
-/*
- * Add custom implementation for memset to avoid using standard/builtin memset
- * which may use features like SSE/GOT that don't work with guest vm execution
- * within selftests.
- */
-void *memset(void *mem, int byte, size_t size)
-{
- uint8_t *buf = (uint8_t *)mem;
-
- for (uint32_t i = 0; i < size; i++)
- buf[i] = byte;
-
- return buf;
-}
-
-static void populate_test_area(void *test_area_base, uint64_t pat)
-{
- memset(test_area_base, pat, TEST_AREA_SIZE);
-}
-
-static void populate_guest_test_mem(void *guest_test_mem, uint64_t pat)
-{
- memset(guest_test_mem, pat, GUEST_TEST_MEM_SIZE);
-}
-
-static bool verify_test_area(void *test_area_base, uint64_t area_pat,
- uint64_t guest_pat)
-{
- void *test_area1_base = test_area_base;
- uint64_t test_area1_size = GUEST_TEST_MEM_OFFSET;
- void *guest_test_mem = test_area_base + test_area1_size;
- uint64_t guest_test_size = GUEST_TEST_MEM_SIZE;
- void *test_area2_base = guest_test_mem + guest_test_size;
- uint64_t test_area2_size = (TEST_AREA_SIZE - (GUEST_TEST_MEM_OFFSET +
- GUEST_TEST_MEM_SIZE));
-
- return (verify_mem_contents(test_area1_base, test_area1_size, area_pat) &&
- verify_mem_contents(guest_test_mem, guest_test_size, guest_pat) &&
- verify_mem_contents(test_area2_base, test_area2_size, area_pat));
-}
-
-#define GUEST_STARTED 0
-#define GUEST_PRIVATE_MEM_POPULATED 1
-#define GUEST_SHARED_MEM_POPULATED 2
-#define GUEST_PRIVATE_MEM_POPULATED2 3
-#define GUEST_IMPLICIT_MEM_CONV1 4
-#define GUEST_IMPLICIT_MEM_CONV2 5
-
-/*
- * Run memory conversion tests supporting two types of conversion:
- * 1) Explicit: Execute KVM hypercall to map/unmap gpa range which will cause
- * userspace exit to back/unback private memory. Subsequent accesses by guest
- * to the gpa range will not cause exit to userspace.
- * 2) Implicit: Execute KVM hypercall to update memory access to a gpa range as
- * private/shared without exiting to userspace. Subsequent accesses by guest
- * to the gpa range will result in KVM EPT/NPT faults and then exit to
- * userspace for each page.
- *
- * Test memory conversion scenarios with following steps:
- * 1) Access private memory using private access and verify that memory contents
- * are not visible to userspace.
- * 2) Convert memory to shared using explicit/implicit conversions and ensure
- * that userspace is able to access the shared regions.
- * 3) Convert memory back to private using explicit/implicit conversions and
- * ensure that userspace is again not able to access converted private
- * regions.
- */
-static void guest_conv_test_fn(bool test_explicit_conv)
-{
- void *test_area_base = (void *)TEST_AREA_GPA;
- void *guest_test_mem = (void *)(TEST_AREA_GPA + GUEST_TEST_MEM_OFFSET);
- uint64_t guest_test_size = GUEST_TEST_MEM_SIZE;
-
- guest_map_ucall_page_shared();
- GUEST_SYNC(GUEST_STARTED);
-
- populate_test_area(test_area_base, TEST_MEM_DATA_PAT1);
- GUEST_SYNC(GUEST_PRIVATE_MEM_POPULATED);
- GUEST_ASSERT(verify_test_area(test_area_base, TEST_MEM_DATA_PAT1,
- TEST_MEM_DATA_PAT1));
-
- if (test_explicit_conv)
- guest_update_mem_map(TO_SHARED, (uint64_t)guest_test_mem,
- guest_test_size);
- else {
- guest_update_mem_access(TO_SHARED, (uint64_t)guest_test_mem,
- guest_test_size);
- GUEST_SYNC(GUEST_IMPLICIT_MEM_CONV1);
- }
-
- populate_guest_test_mem(guest_test_mem, TEST_MEM_DATA_PAT2);
-
- GUEST_SYNC(GUEST_SHARED_MEM_POPULATED);
- GUEST_ASSERT(verify_test_area(test_area_base, TEST_MEM_DATA_PAT1,
- TEST_MEM_DATA_PAT5));
-
- if (test_explicit_conv)
- guest_update_mem_map(TO_PRIVATE, (uint64_t)guest_test_mem,
- guest_test_size);
- else {
- guest_update_mem_access(TO_PRIVATE, (uint64_t)guest_test_mem,
- guest_test_size);
- GUEST_SYNC(GUEST_IMPLICIT_MEM_CONV2);
- }
-
- populate_guest_test_mem(guest_test_mem, TEST_MEM_DATA_PAT3);
- GUEST_SYNC(GUEST_PRIVATE_MEM_POPULATED2);
-
- GUEST_ASSERT(verify_test_area(test_area_base, TEST_MEM_DATA_PAT1,
- TEST_MEM_DATA_PAT3));
- GUEST_DONE();
-}
-
-static void conv_test_ioexit_fn(struct kvm_vm *vm, uint32_t uc_arg1)
-{
- void *test_area_hva = addr_gpa2hva(vm, TEST_AREA_GPA);
- void *guest_test_mem_hva = (test_area_hva + GUEST_TEST_MEM_OFFSET);
- uint64_t guest_mem_gpa = (TEST_AREA_GPA + GUEST_TEST_MEM_OFFSET);
- uint64_t guest_test_size = GUEST_TEST_MEM_SIZE;
-
- switch (uc_arg1) {
- case GUEST_STARTED:
- populate_test_area(test_area_hva, TEST_MEM_DATA_PAT4);
- VM_STAGE_PROCESSED(GUEST_STARTED);
- break;
- case GUEST_PRIVATE_MEM_POPULATED:
- TEST_ASSERT(verify_test_area(test_area_hva, TEST_MEM_DATA_PAT4,
- TEST_MEM_DATA_PAT4), "failed");
- VM_STAGE_PROCESSED(GUEST_PRIVATE_MEM_POPULATED);
- break;
- case GUEST_SHARED_MEM_POPULATED:
- TEST_ASSERT(verify_test_area(test_area_hva, TEST_MEM_DATA_PAT4,
- TEST_MEM_DATA_PAT2), "failed");
- populate_guest_test_mem(guest_test_mem_hva, TEST_MEM_DATA_PAT5);
- VM_STAGE_PROCESSED(GUEST_SHARED_MEM_POPULATED);
- break;
- case GUEST_PRIVATE_MEM_POPULATED2:
- TEST_ASSERT(verify_test_area(test_area_hva, TEST_MEM_DATA_PAT4,
- TEST_MEM_DATA_PAT5), "failed");
- VM_STAGE_PROCESSED(GUEST_PRIVATE_MEM_POPULATED2);
- break;
- case GUEST_IMPLICIT_MEM_CONV1:
- /*
- * For first implicit conversion, memory is already private so
- * mark it private again just to zap the pte entries for the gpa
- * range, so that subsequent accesses from the guest will
- * generate ept/npt fault and memory conversion path will be
- * exercised by KVM.
- */
- vm_update_private_mem(vm, guest_mem_gpa, guest_test_size,
- ALLOCATE_MEM);
- VM_STAGE_PROCESSED(GUEST_IMPLICIT_MEM_CONV1);
- break;
- case GUEST_IMPLICIT_MEM_CONV2:
- /*
- * For second implicit conversion, memory is already shared so
- * mark it shared again just to zap the pte entries for the gpa
- * range, so that subsequent accesses from the guest will
- * generate ept/npt fault and memory conversion path will be
- * exercised by KVM.
- */
- vm_update_private_mem(vm, guest_mem_gpa, guest_test_size,
- UNBACK_MEM);
- VM_STAGE_PROCESSED(GUEST_IMPLICIT_MEM_CONV2);
- break;
- default:
- TEST_FAIL("Unknown stage %d\n", uc_arg1);
- break;
- }
-}
-
-static void guest_explicit_conv_test_fn(void)
-{
- guest_conv_test_fn(true);
-}
-
-static void guest_implicit_conv_test_fn(void)
-{
- guest_conv_test_fn(false);
-}
-
-static void execute_memory_conversion_test(void)
-{
- struct vm_setup_info info;
- struct test_setup_info *test_info = &info.test_info;
-
- info.vm_mem_src = VM_MEM_SRC_ANONYMOUS;
- info.memslot0_pages = VM_MEMSLOT0_PAGES;
- test_info->test_area_gpa = TEST_AREA_GPA;
- test_info->test_area_size = TEST_AREA_SIZE;
- test_info->test_area_slot = TEST_AREA_SLOT;
- test_info->test_area_mem_src = VM_MEM_SRC_ANONYMOUS;
- info.ioexit_cb = conv_test_ioexit_fn;
-
- info.guest_fn = guest_explicit_conv_test_fn;
- execute_vm_with_private_mem(&info);
-
- info.guest_fn = guest_implicit_conv_test_fn;
- execute_vm_with_private_mem(&info);
-}
+#include <private_mem_test_helper.h>
int main(int argc, char *argv[])
{
/* Tell stdout not to buffer its content */
setbuf(stdout, NULL);
- execute_memory_conversion_test();
+ execute_memory_conversion_tests();
return 0;
}
--
2.37.2.672.g94769d06f0-goog
next prev parent reply other threads:[~2022-08-30 22:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-30 22:42 [RFC V2 PATCH 0/8] selftests: KVM: SEV: selftests for fd-based private memory Vishal Annapurve
2022-08-30 22:42 ` [RFC V2 PATCH 1/8] selftests: kvm: x86_64: Add support for pagetable tracking Vishal Annapurve
2022-08-30 22:42 ` [RFC V2 PATCH 2/8] kvm: Add HVA range operator Vishal Annapurve
2022-08-30 22:42 ` [RFC V2 PATCH 3/8] arch: x86: sev: Populate private memory fd during LAUNCH_UPDATE_DATA Vishal Annapurve
2022-08-30 22:42 ` [RFC V2 PATCH 4/8] selftests: kvm: sev: Support memslots with private memory Vishal Annapurve
2022-08-30 22:42 ` [RFC V2 PATCH 5/8] selftests: kvm: Update usage of private mem lib for SEV VMs Vishal Annapurve
2022-08-30 22:42 ` [RFC V2 PATCH 6/8] selftests: kvm: Support executing SEV VMs with private memory Vishal Annapurve
2022-08-30 22:42 ` Vishal Annapurve [this message]
2022-08-30 22:42 ` [RFC V2 PATCH 8/8] selftests: kvm: Add private memory test for SEV VMs Vishal Annapurve
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