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Message-ID: <5896058a1eb841946d2e9aa6c5c67f4da6e432c8.camel@kernel.org>
Date: Thu, 16 Sep 2021 18:20:09 +0300
From: Jarkko Sakkinen <jarkko@...nel.org>
To: Reinette Chatre <reinette.chatre@...el.com>,
linux-sgx@...r.kernel.org, shuah@...nel.org
Cc: seanjc@...gle.com, bp@...en8.de, dave.hansen@...ux.intel.com,
linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/14] selftests/sgx: Rename test properties in
preparation for more enclave tests
On Wed, 2021-09-15 at 13:31 -0700, Reinette Chatre wrote:
> SGX selftests prepares a data structure outside of the enclave with
> the type of and data for the operation that needs to be run within
> the enclave. At this time only two complementary operations are supported
> by the enclave: copying a value from outside the enclave into a default
> buffer within the enclave and reading a value from the enclave's default
> buffer into a variable accessible outside the enclave.
>
> In preparation for more operations supported by the enclave the names of the
> current enclave operations are changed to more accurately reflect the
> operations and more easily distinguish it from future operations:
>
> * The enums ENCL_OP_PUT and ENCL_OP_GET are renamed to ENCL_OP_PUT_TO_BUFFER
> and ENCL_OP_GET_FROM_BUFFER respectively.
> * The structs encl_op_put and encl_op_get are renamed to encl_op_put_to_buf
> and encl_op_get_from_buf respectively.
> * The enclave functions do_encl_op_put and do_encl_op_get are renamed to
> do_encl_op_put_to_buf and do_encl_op_get_from_buf respectively.
>
> No functional changes.
>
> Suggested-by: Jarkko Sakkinen <jarkko@...nel.org>
> Signed-off-by: Reinette Chatre <reinette.chatre@...el.com>
> ---
> tools/testing/selftests/sgx/defines.h | 8 +++----
> tools/testing/selftests/sgx/main.c | 32 ++++++++++++-------------
> tools/testing/selftests/sgx/test_encl.c | 12 +++++-----
> 3 files changed, 26 insertions(+), 26 deletions(-)
>
> diff --git a/tools/testing/selftests/sgx/defines.h b/tools/testing/selftests/sgx/defines.h
> index 6ff95a766287..9ea0c7882dfb 100644
> --- a/tools/testing/selftests/sgx/defines.h
> +++ b/tools/testing/selftests/sgx/defines.h
> @@ -19,8 +19,8 @@
> #include "../../../../arch/x86/include/uapi/asm/sgx.h"
>
> enum encl_op_type {
> - ENCL_OP_PUT,
> - ENCL_OP_GET,
> + ENCL_OP_PUT_TO_BUFFER,
> + ENCL_OP_GET_FROM_BUFFER,
> ENCL_OP_MAX,
> };
>
> @@ -28,12 +28,12 @@ struct encl_op_header {
> uint64_t type;
> };
>
> -struct encl_op_put {
> +struct encl_op_put_to_buf {
> struct encl_op_header header;
> uint64_t value;
> };
>
> -struct encl_op_get {
> +struct encl_op_get_from_buf {
> struct encl_op_header header;
> uint64_t value;
> };
> diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c
> index a107fc576094..3eb9b89ece5f 100644
> --- a/tools/testing/selftests/sgx/main.c
> +++ b/tools/testing/selftests/sgx/main.c
> @@ -220,15 +220,15 @@ FIXTURE_TEARDOWN(enclave)
>
> TEST_F(enclave, unclobbered_vdso)
> {
> - struct encl_op_put put_op;
> - struct encl_op_get get_op;
> + struct encl_op_get_from_buf get_op;
> + struct encl_op_put_to_buf put_op;
>
> ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
>
> memset(&self->run, 0, sizeof(self->run));
> self->run.tcs = self->encl.encl_base;
>
> - put_op.header.type = ENCL_OP_PUT;
> + put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
> put_op.value = MAGIC;
>
> EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0);
> @@ -236,7 +236,7 @@ TEST_F(enclave, unclobbered_vdso)
> EXPECT_EEXIT(&self->run);
> EXPECT_EQ(self->run.user_data, 0);
>
> - get_op.header.type = ENCL_OP_GET;
> + get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
> get_op.value = 0;
>
> EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0);
> @@ -277,9 +277,9 @@ static bool sysfs_get_ulong(const char *path, unsigned long *value)
>
> TEST_F(enclave, unclobbered_vdso_oversubscribed)
> {
> + struct encl_op_get_from_buf get_op;
> + struct encl_op_put_to_buf put_op;
> unsigned long total_mem;
> - struct encl_op_put put_op;
> - struct encl_op_get get_op;
>
> ASSERT_TRUE(sysfs_get_ulong(SGX_TOTAL_MEM_PATH, &total_mem));
> ASSERT_TRUE(setup_test_encl(total_mem, &self->encl, _metadata));
> @@ -287,7 +287,7 @@ TEST_F(enclave, unclobbered_vdso_oversubscribed)
> memset(&self->run, 0, sizeof(self->run));
> self->run.tcs = self->encl.encl_base;
>
> - put_op.header.type = ENCL_OP_PUT;
> + put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
> put_op.value = MAGIC;
>
> EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0);
> @@ -295,7 +295,7 @@ TEST_F(enclave, unclobbered_vdso_oversubscribed)
> EXPECT_EEXIT(&self->run);
> EXPECT_EQ(self->run.user_data, 0);
>
> - get_op.header.type = ENCL_OP_GET;
> + get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
> get_op.value = 0;
>
> EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0);
> @@ -308,15 +308,15 @@ TEST_F(enclave, unclobbered_vdso_oversubscribed)
>
> TEST_F(enclave, clobbered_vdso)
> {
> - struct encl_op_put put_op;
> - struct encl_op_get get_op;
> + struct encl_op_get_from_buf get_op;
> + struct encl_op_put_to_buf put_op;
>
> ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
>
> memset(&self->run, 0, sizeof(self->run));
> self->run.tcs = self->encl.encl_base;
>
> - put_op.header.type = ENCL_OP_PUT;
> + put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
> put_op.value = MAGIC;
>
> EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0);
> @@ -324,7 +324,7 @@ TEST_F(enclave, clobbered_vdso)
> EXPECT_EEXIT(&self->run);
> EXPECT_EQ(self->run.user_data, 0);
>
> - get_op.header.type = ENCL_OP_GET;
> + get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
> get_op.value = 0;
>
> EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0);
> @@ -344,8 +344,8 @@ static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r
>
> TEST_F(enclave, clobbered_vdso_and_user_function)
> {
> - struct encl_op_put put_op;
> - struct encl_op_get get_op;
> + struct encl_op_get_from_buf get_op;
> + struct encl_op_put_to_buf put_op;
>
> ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
>
> @@ -355,7 +355,7 @@ TEST_F(enclave, clobbered_vdso_and_user_function)
> self->run.user_handler = (__u64)test_handler;
> self->run.user_data = 0xdeadbeef;
>
> - put_op.header.type = ENCL_OP_PUT;
> + put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
> put_op.value = MAGIC;
>
> EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0);
> @@ -363,7 +363,7 @@ TEST_F(enclave, clobbered_vdso_and_user_function)
> EXPECT_EEXIT(&self->run);
> EXPECT_EQ(self->run.user_data, 0);
>
> - get_op.header.type = ENCL_OP_GET;
> + get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
> get_op.value = 0;
>
> EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0);
> diff --git a/tools/testing/selftests/sgx/test_encl.c b/tools/testing/selftests/sgx/test_encl.c
> index f11eb8315704..4e8da738173f 100644
> --- a/tools/testing/selftests/sgx/test_encl.c
> +++ b/tools/testing/selftests/sgx/test_encl.c
> @@ -16,16 +16,16 @@ static void *memcpy(void *dest, const void *src, size_t n)
> return dest;
> }
>
> -static void do_encl_op_put(void *op)
> +static void do_encl_op_put_to_buf(void *op)
> {
> - struct encl_op_put *op2 = op;
> + struct encl_op_put_to_buf *op2 = op;
>
> memcpy(&encl_buffer[0], &op2->value, 8);
> }
>
> -static void do_encl_op_get(void *op)
> +static void do_encl_op_get_from_buf(void *op)
> {
> - struct encl_op_get *op2 = op;
> + struct encl_op_get_from_buf *op2 = op;
>
> memcpy(&op2->value, &encl_buffer[0], 8);
> }
> @@ -33,8 +33,8 @@ static void do_encl_op_get(void *op)
> void encl_body(void *rdi, void *rsi)
> {
> const void (*encl_op_array[ENCL_OP_MAX])(void *) = {
> - do_encl_op_put,
> - do_encl_op_get,
> + do_encl_op_put_to_buf,
> + do_encl_op_get_from_buf,
> };
>
> struct encl_op_header *op = (struct encl_op_header *)rdi;
Acked-by: Jarkko Sakkinen <jarkko@...nel.org>
/Jarkko
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