A very simple of booting SEV guests that checks related CPUID bits. This
is a stripped down version of "[PATCH v2 08/13] KVM: selftests: add SEV
boot tests" from Michael but much simpler.
Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Peter Gonda <pgonda@google.com>
---
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 1 +
.../selftests/kvm/include/x86_64/sev.h | 3 +
tools/testing/selftests/kvm/lib/x86_64/sev.c | 2 -
.../selftests/kvm/x86_64/sev_all_boot_test.c | 131 ++++++++++++++++++
5 files changed, 136 insertions(+), 2 deletions(-)
create mode 100644 tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore
index d625a3f83780..ca57969a0923 100644
--- a/tools/testing/selftests/kvm/.gitignore
+++ b/tools/testing/selftests/kvm/.gitignore
@@ -33,6 +33,7 @@
/x86_64/pmu_event_filter_test
/x86_64/set_boot_cpu_id
/x86_64/set_sregs_test
+/x86_64/sev_all_boot_test
/x86_64/sev_migrate_tests
/x86_64/smm_test
/x86_64/state_test
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index b247c4b595af..73b083f93b46 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -122,6 +122,7 @@ TEST_GEN_PROGS_x86_64 += x86_64/tsc_msrs_test
TEST_GEN_PROGS_x86_64 += x86_64/vmx_pmu_caps_test
TEST_GEN_PROGS_x86_64 += x86_64/xen_shinfo_test
TEST_GEN_PROGS_x86_64 += x86_64/xen_vmcall_test
+TEST_GEN_PROGS_x86_64 += x86_64/sev_all_boot_test
TEST_GEN_PROGS_x86_64 += x86_64/sev_migrate_tests
TEST_GEN_PROGS_x86_64 += x86_64/amx_test
TEST_GEN_PROGS_x86_64 += x86_64/max_vcpuid_cap_test
diff --git a/tools/testing/selftests/kvm/include/x86_64/sev.h b/tools/testing/selftests/kvm/include/x86_64/sev.h
index 2f7f7c741b12..b6552ea1c716 100644
--- a/tools/testing/selftests/kvm/include/x86_64/sev.h
+++ b/tools/testing/selftests/kvm/include/x86_64/sev.h
@@ -22,6 +22,9 @@
#define SEV_POLICY_NO_DBG (1UL << 0)
#define SEV_POLICY_ES (1UL << 2)
+#define CPUID_MEM_ENC_LEAF 0x8000001f
+#define CPUID_EBX_CBIT_MASK 0x3f
+
enum {
SEV_GSTATE_UNINIT = 0,
SEV_GSTATE_LUPDATE,
diff --git a/tools/testing/selftests/kvm/lib/x86_64/sev.c b/tools/testing/selftests/kvm/lib/x86_64/sev.c
index 3abcf50c0b5d..8f9f55c685a7 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/sev.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/sev.c
@@ -13,8 +13,6 @@
#include "sev.h"
#define PAGE_SHIFT 12
-#define CPUID_MEM_ENC_LEAF 0x8000001f
-#define CPUID_EBX_CBIT_MASK 0x3f
struct sev_vm {
struct kvm_vm *vm;
diff --git a/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
new file mode 100644
index 000000000000..b319d18bdb60
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Basic SEV boot tests.
+ *
+ * Copyright (C) 2021 Advanced Micro Devices
+ */
+#define _GNU_SOURCE /* for program_invocation_short_name */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "linux/psp-sev.h"
+#include "sev.h"
+
+#define VCPU_ID 2
+#define PAGE_STRIDE 32
+
+#define SHARED_PAGES 8192
+#define SHARED_VADDR_MIN 0x1000000
+
+#define PRIVATE_PAGES 2048
+#define PRIVATE_VADDR_MIN (SHARED_VADDR_MIN + SHARED_PAGES * PAGE_SIZE)
+
+#define TOTAL_PAGES (512 + SHARED_PAGES + PRIVATE_PAGES)
+
+#define NR_SYNCS 1
+
+static void guest_run_loop(struct kvm_vcpu *vcpu)
+{
+ struct ucall uc;
+ int i;
+
+ for (i = 0; i <= NR_SYNCS; ++i) {
+ vcpu_run(vcpu);
+ switch (get_ucall(vcpu, &uc)) {
+ case UCALL_SYNC:
+ continue;
+ case UCALL_DONE:
+ return;
+ case UCALL_ABORT:
+ TEST_ASSERT(false, "%s at %s:%ld\n\tvalues: %#lx, %#lx",
+ (const char *)uc.args[0], __FILE__,
+ uc.args[1], uc.args[2], uc.args[3]);
+ default:
+ TEST_ASSERT(
+ false, "Unexpected exit: %s",
+ exit_reason_str(vcpu->run->exit_reason));
+ }
+ }
+}
+
+static void __attribute__((__flatten__)) guest_sev_code(void)
+{
+ uint32_t eax, ebx, ecx, edx;
+ uint64_t sev_status;
+
+ GUEST_SYNC(1);
+
+ cpuid(CPUID_MEM_ENC_LEAF, &eax, &ebx, &ecx, &edx);
+ GUEST_ASSERT(eax & (1 << 1));
+
+ sev_status = rdmsr(MSR_AMD64_SEV);
+ GUEST_ASSERT((sev_status & 0x1) == 1);
+
+ GUEST_DONE();
+}
+
+static struct sev_vm *setup_test_common(void *guest_code, uint64_t policy,
+ struct kvm_vcpu **vcpu)
+{
+ uint8_t measurement[512];
+ struct sev_vm *sev;
+ struct kvm_vm *vm;
+ int i;
+
+ sev = sev_vm_create(policy, TOTAL_PAGES);
+ if (!sev)
+ return NULL;
+ vm = sev_get_vm(sev);
+
+ /* Set up VCPU and initial guest kernel. */
+ *vcpu = vm_vcpu_add(vm, VCPU_ID, guest_code);
+ kvm_vm_elf_load(vm, program_invocation_name);
+
+ /* Allocations/setup done. Encrypt initial guest payload. */
+ sev_vm_launch(sev);
+
+ /* Dump the initial measurement. A test to actually verify it would be nice. */
+ sev_vm_launch_measure(sev, measurement);
+ pr_info("guest measurement: ");
+ for (i = 0; i < 32; ++i)
+ pr_info("%02x", measurement[i]);
+ pr_info("\n");
+
+ sev_vm_launch_finish(sev);
+
+ return sev;
+}
+
+static void test_sev(void *guest_code, uint64_t policy)
+{
+ struct sev_vm *sev;
+ struct kvm_vcpu *vcpu;
+
+ sev = setup_test_common(guest_code, policy, &vcpu);
+ if (!sev)
+ return;
+
+ /* Guest is ready to run. Do the tests. */
+ guest_run_loop(vcpu);
+
+ pr_info("guest ran successfully\n");
+
+ sev_vm_free(sev);
+}
+
+int main(int argc, char *argv[])
+{
+ /* SEV tests */
+ test_sev(guest_sev_code, SEV_POLICY_NO_DBG);
+ test_sev(guest_sev_code, 0);
+
+ return 0;
+}
--
2.37.1.559.g78731f0fdb-googOn Wed, Aug 10, 2022, Peter Gonda wrote: > A very simple of booting SEV guests that checks related CPUID bits. This > is a stripped down version of "[PATCH v2 08/13] KVM: selftests: add SEV > boot tests" from Michael but much simpler. > > Signed-off-by: Michael Roth <michael.roth@amd.com> If you're including Mike's SOB, then he should either be credited as the author or with Co-developed-by. If the code has been significantly rewritten, i.e. carrying Mike's SOB would be disingenuous, then do a less "official" Originally-by: Michael Roth <michael.roth@amd.com> or Suggested-by: Michael Roth <michael.roth@amd.com>
/sev_vm_launch_measurOn Wed, Aug 10, 2022, Peter Gonda wrote:
> diff --git a/tools/testing/selftests/kvm/include/x86_64/sev.h b/tools/testing/selftests/kvm/include/x86_64/sev.h
> index 2f7f7c741b12..b6552ea1c716 100644
> --- a/tools/testing/selftests/kvm/include/x86_64/sev.h
> +++ b/tools/testing/selftests/kvm/include/x86_64/sev.h
> @@ -22,6 +22,9 @@
> #define SEV_POLICY_NO_DBG (1UL << 0)
> #define SEV_POLICY_ES (1UL << 2)
>
> +#define CPUID_MEM_ENC_LEAF 0x8000001f
> +#define CPUID_EBX_CBIT_MASK 0x3f
Ha! I was going to say "put these in processor.h", but I have an even better idea.
I'll try to a series posted tomorrow (compile tested only at this point), but what
I'm hoping to do is to allow automagic retrieval of multi-bit CPUID properties, a la
the existing this_cpu_has() stuff.
E.g.
#define X86_PROPERTY_CBIT_LOCATION KVM_X86_CPU_PROPERTY(0x8000001F, 0, EBX, 0, 5)
and then
sev->enc_bit = this_cpu_property(X86_PROPERTY_CBIT_LOCATION);
LOL, now I see that the defines in sev.c were introduced back in patch 08. That's
probably fine for your submission so as not to take a dependency on the "property"
idea. This patch doesn't need to move the CPUID_* defines because it can use
this_cpu_has(X86_FEATURE_SEV) and avoid referencing CPUID_MEM_ENC_LEAF.
> enum {
> SEV_GSTATE_UNINIT = 0,
> SEV_GSTATE_LUPDATE,
> diff --git a/tools/testing/selftests/kvm/lib/x86_64/sev.c b/tools/testing/selftests/kvm/lib/x86_64/sev.c
> index 3abcf50c0b5d..8f9f55c685a7 100644
> --- a/tools/testing/selftests/kvm/lib/x86_64/sev.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/sev.c
> @@ -13,8 +13,6 @@
> #include "sev.h"
>
> #define PAGE_SHIFT 12
Already defined in processor.h
> -#define CPUID_MEM_ENC_LEAF 0x8000001f
> -#define CPUID_EBX_CBIT_MASK 0x3f
>
> struct sev_vm {
> struct kvm_vm *vm;
> diff --git a/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
> new file mode 100644
> index 000000000000..b319d18bdb60
> --- /dev/null
> +++ b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
> @@ -0,0 +1,131 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Basic SEV boot tests.
> + *
> + * Copyright (C) 2021 Advanced Micro Devices
> + */
> +#define _GNU_SOURCE /* for program_invocation_short_name */
> +#include <fcntl.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <sys/ioctl.h>
> +
> +#include "test_util.h"
> +
> +#include "kvm_util.h"
> +#include "processor.h"
> +#include "svm_util.h"
> +#include "linux/psp-sev.h"
> +#include "sev.h"
> +
> +#define VCPU_ID 2
Nooooooo. Unless there is a really, REALLY good reason this needs to be '2', just
pass '0' as a literal to vm_vcpu_add() and delete VCPU_ID.
> +#define PAGE_STRIDE 32
> +
> +#define SHARED_PAGES 8192
> +#define SHARED_VADDR_MIN 0x1000000
> +
> +#define PRIVATE_PAGES 2048
> +#define PRIVATE_VADDR_MIN (SHARED_VADDR_MIN + SHARED_PAGES * PAGE_SIZE)
> +
> +#define TOTAL_PAGES (512 + SHARED_PAGES + PRIVATE_PAGES)
> +
> +#define NR_SYNCS 1
> +
> +static void guest_run_loop(struct kvm_vcpu *vcpu)
> +{
> + struct ucall uc;
> + int i;
> +
> + for (i = 0; i <= NR_SYNCS; ++i) {
> + vcpu_run(vcpu);
> + switch (get_ucall(vcpu, &uc)) {
> + case UCALL_SYNC:
> + continue;
> + case UCALL_DONE:
> + return;
> + case UCALL_ABORT:
> + TEST_ASSERT(false, "%s at %s:%ld\n\tvalues: %#lx, %#lx",
> + (const char *)uc.args[0], __FILE__,
> + uc.args[1], uc.args[2], uc.args[3]);
> + default:
> + TEST_ASSERT(
> + false, "Unexpected exit: %s",
> + exit_reason_str(vcpu->run->exit_reason));
> + }
> + }
> +}
> +
> +static void __attribute__((__flatten__)) guest_sev_code(void)
Is __flatten__ strictly necessary? I don't see this being copied over anything
that would require it to be a contiguous chunk.
> +{
> + uint32_t eax, ebx, ecx, edx;
> + uint64_t sev_status;
> +
> + GUEST_SYNC(1);
> +
> + cpuid(CPUID_MEM_ENC_LEAF, &eax, &ebx, &ecx, &edx);
> + GUEST_ASSERT(eax & (1 << 1));
GUEST_ASSERT(this_cpu_has(X86_FEATURE_SEV));
> +
> + sev_status = rdmsr(MSR_AMD64_SEV);
> + GUEST_ASSERT((sev_status & 0x1) == 1);
> +
> + GUEST_DONE();
> +}
> +
> +static struct sev_vm *setup_test_common(void *guest_code, uint64_t policy,
> + struct kvm_vcpu **vcpu)
> +{
> + uint8_t measurement[512];
> + struct sev_vm *sev;
> + struct kvm_vm *vm;
> + int i;
> +
> + sev = sev_vm_create(policy, TOTAL_PAGES);
TEST_ASSERT(sev, ...) so that this doesn't silently "pass"?
> + if (!sev)
> + return NULL;
> + vm = sev_get_vm(sev);
> +
> + /* Set up VCPU and initial guest kernel. */
> + *vcpu = vm_vcpu_add(vm, VCPU_ID, guest_code);
> + kvm_vm_elf_load(vm, program_invocation_name);
> +
> + /* Allocations/setup done. Encrypt initial guest payload. */
> + sev_vm_launch(sev);
> +
> + /* Dump the initial measurement. A test to actually verify it would be nice. */
> + sev_vm_launch_measure(sev, measurement);
> + pr_info("guest measurement: ");
> + for (i = 0; i < 32; ++i)
> + pr_info("%02x", measurement[i]);
> + pr_info("\n");
> +
> + sev_vm_launch_finish(sev);
> +
> + return sev;
> +}
> +
> +static void test_sev(void *guest_code, uint64_t policy)
> +{
> + struct sev_vm *sev;
> + struct kvm_vcpu *vcpu;
> +
> + sev = setup_test_common(guest_code, policy, &vcpu);
> + if (!sev)
> + return;
And with an assert above, this return goes away. Or better yet, fold setup_test_common()
into test_sev(), there's only the one user of the so called "common" function.
> +
> + /* Guest is ready to run. Do the tests. */
> + guest_run_loop(vcpu);
> +
> + pr_info("guest ran successfully\n");
> +
> + sev_vm_free(sev);
> +}
> +
> +int main(int argc, char *argv[])
> +{
> + /* SEV tests */
> + test_sev(guest_sev_code, SEV_POLICY_NO_DBG);
> + test_sev(guest_sev_code, 0);
> +
> + return 0;
> +}
> --
> 2.37.1.559.g78731f0fdb-goog
>
On Wed, Aug 17, 2022 at 6:22 PM Sean Christopherson <seanjc@google.com> wrote:
>
> /sev_vm_launch_measurOn Wed, Aug 10, 2022, Peter Gonda wrote:
> > diff --git a/tools/testing/selftests/kvm/include/x86_64/sev.h b/tools/testing/selftests/kvm/include/x86_64/sev.h
> > index 2f7f7c741b12..b6552ea1c716 100644
> > --- a/tools/testing/selftests/kvm/include/x86_64/sev.h
> > +++ b/tools/testing/selftests/kvm/include/x86_64/sev.h
> > @@ -22,6 +22,9 @@
> > #define SEV_POLICY_NO_DBG (1UL << 0)
> > #define SEV_POLICY_ES (1UL << 2)
> >
> > +#define CPUID_MEM_ENC_LEAF 0x8000001f
> > +#define CPUID_EBX_CBIT_MASK 0x3f
>
> Ha! I was going to say "put these in processor.h", but I have an even better idea.
> I'll try to a series posted tomorrow (compile tested only at this point), but what
> I'm hoping to do is to allow automagic retrieval of multi-bit CPUID properties, a la
> the existing this_cpu_has() stuff.
>
> E.g.
>
> #define X86_PROPERTY_CBIT_LOCATION KVM_X86_CPU_PROPERTY(0x8000001F, 0, EBX, 0, 5)
>
> and then
>
> sev->enc_bit = this_cpu_property(X86_PROPERTY_CBIT_LOCATION);
>
> LOL, now I see that the defines in sev.c were introduced back in patch 08. That's
> probably fine for your submission so as not to take a dependency on the "property"
> idea. This patch doesn't need to move the CPUID_* defines because it can use
> this_cpu_has(X86_FEATURE_SEV) and avoid referencing CPUID_MEM_ENC_LEAF.
OK I've put these into sev.c instead of the header. I can clean up
after you property patch series goes in.
>
> > enum {
> > SEV_GSTATE_UNINIT = 0,
> > SEV_GSTATE_LUPDATE,
> > diff --git a/tools/testing/selftests/kvm/lib/x86_64/sev.c b/tools/testing/selftests/kvm/lib/x86_64/sev.c
> > index 3abcf50c0b5d..8f9f55c685a7 100644
> > --- a/tools/testing/selftests/kvm/lib/x86_64/sev.c
> > +++ b/tools/testing/selftests/kvm/lib/x86_64/sev.c
> > @@ -13,8 +13,6 @@
> > #include "sev.h"
> >
> > #define PAGE_SHIFT 12
>
> Already defined in processor.h
Removed
>
> > -#define CPUID_MEM_ENC_LEAF 0x8000001f
> > -#define CPUID_EBX_CBIT_MASK 0x3f
> >
> > struct sev_vm {
> > struct kvm_vm *vm;
> > diff --git a/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
> > new file mode 100644
> > index 000000000000..b319d18bdb60
> > --- /dev/null
> > +++ b/tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
> > @@ -0,0 +1,131 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Basic SEV boot tests.
> > + *
> > + * Copyright (C) 2021 Advanced Micro Devices
> > + */
> > +#define _GNU_SOURCE /* for program_invocation_short_name */
> > +#include <fcntl.h>
> > +#include <stdio.h>
> > +#include <stdlib.h>
> > +#include <string.h>
> > +#include <sys/ioctl.h>
> > +
> > +#include "test_util.h"
> > +
> > +#include "kvm_util.h"
> > +#include "processor.h"
> > +#include "svm_util.h"
> > +#include "linux/psp-sev.h"
> > +#include "sev.h"
> > +
> > +#define VCPU_ID 2
>
> Nooooooo. Unless there is a really, REALLY good reason this needs to be '2', just
> pass '0' as a literal to vm_vcpu_add() and delete VCPU_ID.
Not needed, removed.
>
> > +#define PAGE_STRIDE 32
> > +
> > +#define SHARED_PAGES 8192
> > +#define SHARED_VADDR_MIN 0x1000000
> > +
> > +#define PRIVATE_PAGES 2048
> > +#define PRIVATE_VADDR_MIN (SHARED_VADDR_MIN + SHARED_PAGES * PAGE_SIZE)
> > +
> > +#define TOTAL_PAGES (512 + SHARED_PAGES + PRIVATE_PAGES)
> > +
> > +#define NR_SYNCS 1
> > +
> > +static void guest_run_loop(struct kvm_vcpu *vcpu)
> > +{
> > + struct ucall uc;
> > + int i;
> > +
> > + for (i = 0; i <= NR_SYNCS; ++i) {
> > + vcpu_run(vcpu);
> > + switch (get_ucall(vcpu, &uc)) {
> > + case UCALL_SYNC:
> > + continue;
> > + case UCALL_DONE:
> > + return;
> > + case UCALL_ABORT:
> > + TEST_ASSERT(false, "%s at %s:%ld\n\tvalues: %#lx, %#lx",
> > + (const char *)uc.args[0], __FILE__,
> > + uc.args[1], uc.args[2], uc.args[3]);
> > + default:
> > + TEST_ASSERT(
> > + false, "Unexpected exit: %s",
> > + exit_reason_str(vcpu->run->exit_reason));
> > + }
> > + }
> > +}
> > +
> > +static void __attribute__((__flatten__)) guest_sev_code(void)
>
> Is __flatten__ strictly necessary? I don't see this being copied over anything
> that would require it to be a contiguous chunk.
Nope, removed.
>
> > +{
> > + uint32_t eax, ebx, ecx, edx;
> > + uint64_t sev_status;
> > +
> > + GUEST_SYNC(1);
> > +
> > + cpuid(CPUID_MEM_ENC_LEAF, &eax, &ebx, &ecx, &edx);
> > + GUEST_ASSERT(eax & (1 << 1));
>
> GUEST_ASSERT(this_cpu_has(X86_FEATURE_SEV));
Done.
> > +
> > + sev_status = rdmsr(MSR_AMD64_SEV);
> > + GUEST_ASSERT((sev_status & 0x1) == 1);
> > +
> > + GUEST_DONE();
> > +}
> > +
> > +static struct sev_vm *setup_test_common(void *guest_code, uint64_t policy,
> > + struct kvm_vcpu **vcpu)
> > +{
> > + uint8_t measurement[512];
> > + struct sev_vm *sev;
> > + struct kvm_vm *vm;
> > + int i;
> > +
> > + sev = sev_vm_create(policy, TOTAL_PAGES);
>
> TEST_ASSERT(sev, ...) so that this doesn't silently "pass"?
Done.
>
> > + if (!sev)
> > + return NULL;
> > + vm = sev_get_vm(sev);
> > +
> > + /* Set up VCPU and initial guest kernel. */
> > + *vcpu = vm_vcpu_add(vm, VCPU_ID, guest_code);
> > + kvm_vm_elf_load(vm, program_invocation_name);
> > +
> > + /* Allocations/setup done. Encrypt initial guest payload. */
> > + sev_vm_launch(sev);
> > +
> > + /* Dump the initial measurement. A test to actually verify it would be nice. */
> > + sev_vm_launch_measure(sev, measurement);
> > + pr_info("guest measurement: ");
> > + for (i = 0; i < 32; ++i)
> > + pr_info("%02x", measurement[i]);
> > + pr_info("\n");
> > +
> > + sev_vm_launch_finish(sev);
> > +
> > + return sev;
> > +}
> > +
> > +static void test_sev(void *guest_code, uint64_t policy)
> > +{
> > + struct sev_vm *sev;
> > + struct kvm_vcpu *vcpu;
> > +
> > + sev = setup_test_common(guest_code, policy, &vcpu);
> > + if (!sev)
> > + return;
>
> And with an assert above, this return goes away. Or better yet, fold setup_test_common()
> into test_sev(), there's only the one user of the so called "common" function.
Done.
>
> > +
> > + /* Guest is ready to run. Do the tests. */
> > + guest_run_loop(vcpu);
> > +
> > + pr_info("guest ran successfully\n");
> > +
> > + sev_vm_free(sev);
> > +}
> > +
> > +int main(int argc, char *argv[])
> > +{
> > + /* SEV tests */
> > + test_sev(guest_sev_code, SEV_POLICY_NO_DBG);
> > + test_sev(guest_sev_code, 0);
> > +
> > + return 0;
> > +}
> > --
> > 2.37.1.559.g78731f0fdb-goog
> >
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