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u-boot/test/bloblist.c
Simon Glass 9fe064646d bloblist: Support relocating to a larger space 
Typically in TPL/SPL the bloblist is quite small. But U-Boot proper may
want to add a lot more to it, such as ACPI tables.

Add a way to expand the bloblist by relocating it in U-Boot proper, along
with the other relocation activities.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-27 17:03:16 -05:00

395 lines
11 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2018, Google Inc. All rights reserved.
*/
#include <common.h>
#include <bloblist.h>
#include <log.h>
#include <mapmem.h>
#include <test/suites.h>
#include <test/test.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/* Declare a new compression test */
#define BLOBLIST_TEST(_name, _flags) \
UNIT_TEST(_name, _flags, bloblist_test)
enum {
TEST_TAG = 1,
TEST_TAG2 = 2,
TEST_TAG_MISSING = 3,
TEST_SIZE = 10,
TEST_SIZE2 = 20,
TEST_SIZE_LARGE = 0x3e0,
TEST_ADDR = CONFIG_BLOBLIST_ADDR,
TEST_BLOBLIST_SIZE = 0x400,
ERASE_BYTE = '\xff',
};
static struct bloblist_hdr *clear_bloblist(void)
{
struct bloblist_hdr *hdr;
/*
* Clear out any existing bloblist so we have a clean slate. Zero the
* header so that existing records are removed, but set everything else
* to 0xff for testing purposes.
*/
hdr = map_sysmem(CONFIG_BLOBLIST_ADDR, TEST_BLOBLIST_SIZE);
memset(hdr, ERASE_BYTE, TEST_BLOBLIST_SIZE);
memset(hdr, '\0', sizeof(*hdr));
return hdr;
}
static int check_zero(void *data, int size)
{
u8 *ptr;
int i;
for (ptr = data, i = 0; i < size; i++, ptr++) {
if (*ptr)
return -EINVAL;
}
return 0;
}
static int bloblist_test_init(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
hdr = clear_bloblist();
ut_asserteq(-ENOENT, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
hdr->version++;
ut_asserteq(-EPROTONOSUPPORT, bloblist_check(TEST_ADDR,
TEST_BLOBLIST_SIZE));
ut_asserteq(-ENOSPC, bloblist_new(TEST_ADDR, 0x10, 0));
ut_asserteq(-EFAULT, bloblist_new(1, TEST_BLOBLIST_SIZE, 0));
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_finish());
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->flags++;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
return 1;
}
BLOBLIST_TEST(bloblist_test_init, 0);
static int bloblist_test_blob(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
struct bloblist_rec *rec, *rec2;
char *data;
/* At the start there should be no records */
hdr = clear_bloblist();
ut_assertnull(bloblist_find(TEST_TAG, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
ut_asserteq(map_to_sysmem(hdr), TEST_ADDR);
/* Add a record and check that we can find it */
data = bloblist_add(TEST_TAG, TEST_SIZE, 0);
rec = (void *)(hdr + 1);
ut_asserteq_addr(rec + 1, data);
data = bloblist_find(TEST_TAG, TEST_SIZE);
ut_asserteq_addr(rec + 1, data);
/* Check the data is zeroed */
ut_assertok(check_zero(data, TEST_SIZE));
/* Check the 'ensure' method */
ut_asserteq_addr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
ut_assertnull(bloblist_ensure(TEST_TAG, TEST_SIZE2));
rec2 = (struct bloblist_rec *)(data + ALIGN(TEST_SIZE, BLOBLIST_ALIGN));
ut_assertok(check_zero(data, TEST_SIZE));
/* Check for a non-existent record */
ut_asserteq_addr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
ut_asserteq_addr(rec2 + 1, bloblist_ensure(TEST_TAG2, TEST_SIZE2));
ut_assertnull(bloblist_find(TEST_TAG_MISSING, 0));
return 0;
}
BLOBLIST_TEST(bloblist_test_blob, 0);
/* Check bloblist_ensure_size_ret() */
static int bloblist_test_blob_ensure(struct unit_test_state *uts)
{
void *data, *data2;
int size;
/* At the start there should be no records */
clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
/* Test with an empty bloblist */
size = TEST_SIZE;
ut_assertok(bloblist_ensure_size_ret(TEST_TAG, &size, &data));
ut_asserteq(TEST_SIZE, size);
ut_assertok(check_zero(data, TEST_SIZE));
/* Check that we get the same thing again */
ut_assertok(bloblist_ensure_size_ret(TEST_TAG, &size, &data2));
ut_asserteq(TEST_SIZE, size);
ut_asserteq_addr(data, data2);
/* Check that the size remains the same */
size = TEST_SIZE2;
ut_assertok(bloblist_ensure_size_ret(TEST_TAG, &size, &data));
ut_asserteq(TEST_SIZE, size);
/* Check running out of space */
size = TEST_SIZE_LARGE;
ut_asserteq(-ENOSPC, bloblist_ensure_size_ret(TEST_TAG2, &size, &data));
return 0;
}
BLOBLIST_TEST(bloblist_test_blob_ensure, 0);
static int bloblist_test_bad_blob(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
void *data;
hdr = clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
data = hdr + 1;
data += sizeof(struct bloblist_rec);
ut_asserteq_addr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
ut_asserteq_addr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
return 0;
}
BLOBLIST_TEST(bloblist_test_bad_blob, 0);
static int bloblist_test_checksum(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
char *data, *data2;
hdr = clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
ut_assertok(bloblist_finish());
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
/*
* Now change things amd make sure that the checksum notices. We cannot
* change the size or alloced fields, since that will crash the code.
* It has to rely on these being correct.
*/
hdr->flags--;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->flags++;
hdr->size--;
ut_asserteq(-EFBIG, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->size++;
hdr->spare++;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->spare--;
hdr->chksum++;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->chksum--;
/* Make sure the checksum changes when we add blobs */
data = bloblist_add(TEST_TAG, TEST_SIZE, 0);
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
data2 = bloblist_add(TEST_TAG2, TEST_SIZE2, 0);
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_finish());
/* It should also change if we change the data */
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data += 1;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data -= 1;
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data2 += 1;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data2 -= 1;
/*
* Changing data outside the range of valid data should not affect
* the checksum.
*/
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
data[TEST_SIZE]++;
data2[TEST_SIZE2]++;
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
return 0;
}
BLOBLIST_TEST(bloblist_test_checksum, 0);
/* Test the 'bloblist info' command */
static int bloblist_test_cmd_info(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
char *data, *data2;
hdr = clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
data = bloblist_ensure(TEST_TAG, TEST_SIZE);
data2 = bloblist_ensure(TEST_TAG2, TEST_SIZE2);
console_record_reset_enable();
ut_silence_console(uts);
console_record_reset();
run_command("bloblist info", 0);
ut_assert_nextline("base: %lx", (ulong)map_to_sysmem(hdr));
ut_assert_nextline("size: 400 1 KiB");
ut_assert_nextline("alloced: 70 112 Bytes");
ut_assert_nextline("free: 390 912 Bytes");
ut_assert_console_end();
ut_unsilence_console(uts);
return 0;
}
BLOBLIST_TEST(bloblist_test_cmd_info, 0);
/* Test the 'bloblist list' command */
static int bloblist_test_cmd_list(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
char *data, *data2;
hdr = clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
data = bloblist_ensure(TEST_TAG, TEST_SIZE);
data2 = bloblist_ensure(TEST_TAG2, TEST_SIZE2);
console_record_reset_enable();
ut_silence_console(uts);
console_record_reset();
run_command("bloblist list", 0);
ut_assert_nextline("Address Size Tag Name");
ut_assert_nextline("%08lx %8x 1 EC host event",
(ulong)map_to_sysmem(data), TEST_SIZE);
ut_assert_nextline("%08lx %8x 2 SPL hand-off",
(ulong)map_to_sysmem(data2), TEST_SIZE2);
ut_assert_console_end();
ut_unsilence_console(uts);
return 0;
}
BLOBLIST_TEST(bloblist_test_cmd_list, 0);
/* Test alignment of bloblist blobs */
static int bloblist_test_align(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
ulong addr;
char *data;
int i;
/* At the start there should be no records */
hdr = clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
ut_assertnull(bloblist_find(TEST_TAG, TEST_BLOBLIST_SIZE));
/* Check the default alignment */
for (i = 0; i < 3; i++) {
int size = i * 3;
ulong addr;
char *data;
int j;
data = bloblist_add(i, size, 0);
ut_assertnonnull(data);
addr = map_to_sysmem(data);
ut_asserteq(0, addr & (BLOBLIST_ALIGN - 1));
/* Only the bytes in the blob data should be zeroed */
for (j = 0; j < size; j++)
ut_asserteq(0, data[j]);
for (; j < BLOBLIST_ALIGN; j++)
ut_asserteq(ERASE_BYTE, data[j]);
}
/* Check larger alignment */
for (i = 0; i < 3; i++) {
int align = 32 << i;
data = bloblist_add(3 + i, i * 4, align);
ut_assertnonnull(data);
addr = map_to_sysmem(data);
ut_asserteq(0, addr & (align - 1));
}
/* Check alignment with an bloblist starting on a smaller alignment */
hdr = map_sysmem(TEST_ADDR + BLOBLIST_ALIGN, TEST_BLOBLIST_SIZE);
memset(hdr, ERASE_BYTE, TEST_BLOBLIST_SIZE);
memset(hdr, '\0', sizeof(*hdr));
ut_assertok(bloblist_new(TEST_ADDR + BLOBLIST_ALIGN, TEST_BLOBLIST_SIZE,
0));
data = bloblist_add(1, 5, BLOBLIST_ALIGN * 2);
ut_assertnonnull(data);
addr = map_to_sysmem(data);
ut_asserteq(0, addr & (BLOBLIST_ALIGN * 2 - 1));
return 0;
}
BLOBLIST_TEST(bloblist_test_align, 0);
/* Test relocation of a bloblist */
static int bloblist_test_reloc(struct unit_test_state *uts)
{
const uint large_size = TEST_BLOBLIST_SIZE;
const uint small_size = 0x20;
void *old_ptr, *new_ptr;
void *blob1, *blob2;
ulong new_addr;
ulong new_size;
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
old_ptr = map_sysmem(TEST_ADDR, TEST_BLOBLIST_SIZE);
/* Add one blob and then one that won't fit */
blob1 = bloblist_add(TEST_TAG, small_size, 0);
ut_assertnonnull(blob1);
blob2 = bloblist_add(TEST_TAG2, large_size, 0);
ut_assertnull(blob2);
/* Relocate the bloblist somewhere else, a bit larger */
new_addr = TEST_ADDR + TEST_BLOBLIST_SIZE;
new_size = TEST_BLOBLIST_SIZE + 0x100;
new_ptr = map_sysmem(new_addr, TEST_BLOBLIST_SIZE);
bloblist_reloc(new_ptr, new_size, old_ptr, TEST_BLOBLIST_SIZE);
gd->bloblist = new_ptr;
/* Check the old blob is there and that we can now add the bigger one */
ut_assertnonnull(bloblist_find(TEST_TAG, small_size));
ut_assertnull(bloblist_find(TEST_TAG2, small_size));
blob2 = bloblist_add(TEST_TAG2, large_size, 0);
ut_assertnonnull(blob2);
return 0;
}
BLOBLIST_TEST(bloblist_test_reloc, 0);
int do_ut_bloblist(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct unit_test *tests = ll_entry_start(struct unit_test,
bloblist_test);
const int n_ents = ll_entry_count(struct unit_test, bloblist_test);
return cmd_ut_category("bloblist", "bloblist_test_",
tests, n_ents, argc, argv);
}
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