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u-boot/test/cmd/fdt.c
Tom Rini 48641bfab7 Merge patch series "automatically add /chosen/kaslr-seed and deduplicate code" 
Tim Harvey <tharvey@gateworks.com> says:

This series will automatically add /chosen/kaslr-seed to the dt if
DM_RNG is enabled
during the boot process.

If RANDOMIZE_BASE is enabled in the Linux kernel instructing it to
randomize the virtual address at which the kernel image is loaded, it
expects entropy to be provided by the bootloader by populating
/chosen/kaslr-seed with a 64-bit value from source of entropy at boot.

If we have DM_RNG enabled populate this value automatically when
fdt_chosen is called. We skip this if ARMV8_SEC_FIRMWARE_SUPPORT
is enabled as its implementation uses a different source of entropy
that is not yet implemented as DM_RNG. We also skip this if
MEASURED_BOOT is enabled as in that case any modifications to the
dt will cause measured boot to fail (although there are many other
places the dt is altered).

As this fdt node is added elsewhere create a library function and
use it to deduplicate code. We will provide a parameter to overwrite
the node if present.

For our automatic injection, we will use the first rng device and
not overwrite if already present with a non-zero value (which may
have been populated by an earlier boot stage). This way if a board
specific ft_board_setup() function wants to customize this behavior
it can call fdt_kaslrseed with a rng device index of its choosing and
set overwrite true.

Note that the kalsrseed command (CMD_KASLRSEED) is likely pointless now
but left in place in case boot scripts exist that rely on this command
existing and returning success. An informational message is printed to
alert users of this command that it is likely no longer needed.

Note that the Kernel's EFI STUB only relies on EFI_RNG_PROTOCOL for
randomization and completely ignores the kaslr-seed for its own
randomness needs (i.e the randomization of the physical placement of
the kernel). It gets weeded out from the DTB that gets handed over via
efi_install_fdt() as it would also mess up the measured boot DTB TPM
measurements as well.
2024-06-28 17:31:28 -06:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Tests for fdt command
*
* Copyright 2022 Google LLC
*/
#include <console.h>
#include <fdt_support.h>
#include <mapmem.h>
#include <asm/global_data.h>
#include <linux/libfdt.h>
#include <test/suites.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* Missing tests:
* fdt boardsetup - Do board-specific set up
* fdt checksign [<addr>] - check FIT signature
* <addr> - address of key blob
* default gd->fdt_blob
*/
/* Declare a new fdt test */
#define FDT_TEST(_name, _flags) UNIT_TEST(_name, _flags, fdt_test)
/**
* make_test_fdt() - Create an FDT with just a root node
*
* The size is set to the minimum needed
*
* @uts: Test state
* @fdt: Place to write FDT
* @size: Maximum size of space for fdt
*/
static int make_test_fdt(struct unit_test_state *uts, void *fdt, int size)
{
ut_assertok(fdt_create(fdt, size));
ut_assertok(fdt_finish_reservemap(fdt));
ut_assert(fdt_begin_node(fdt, "") >= 0);
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_finish(fdt));
return 0;
}
/**
* make_fuller_fdt() - Create an FDT with root node and properties
*
* The size is set to the minimum needed
*
* @uts: Test state
* @fdt: Place to write FDT
* @size: Maximum size of space for fdt
*/
static int make_fuller_fdt(struct unit_test_state *uts, void *fdt, int size)
{
fdt32_t regs[2] = { cpu_to_fdt32(0x1234), cpu_to_fdt32(0x1000) };
/*
* Assemble the following DT for test purposes:
*
* / {
* #address-cells = <0x00000001>;
* #size-cells = <0x00000001>;
* compatible = "u-boot,fdt-test";
* model = "U-Boot FDT test";
*
* aliases {
* badalias = "/bad/alias";
* subnodealias = "/test-node@1234/subnode";
* testnodealias = "/test-node@1234";
* };
*
* test-node@1234 {
* #address-cells = <0x00000000>;
* #size-cells = <0x00000000>;
* compatible = "u-boot,fdt-test-device1";
* clock-names = "fixed", "i2c", "spi", "uart2", "uart1";
* u-boot,empty-property;
* clock-frequency = <0x00fde800>;
* regs = <0x00001234 0x00001000>;
*
* subnode {
* #address-cells = <0x00000000>;
* #size-cells = <0x00000000>;
* compatible = "u-boot,fdt-subnode-test-device";
* };
* };
* };
*/
ut_assertok(fdt_create(fdt, size));
ut_assertok(fdt_finish_reservemap(fdt));
ut_assert(fdt_begin_node(fdt, "") >= 0);
ut_assertok(fdt_property_u32(fdt, "#address-cells", 1));
ut_assertok(fdt_property_u32(fdt, "#size-cells", 1));
/* <string> */
ut_assertok(fdt_property_string(fdt, "compatible", "u-boot,fdt-test"));
/* <string> */
ut_assertok(fdt_property_string(fdt, "model", "U-Boot FDT test"));
ut_assert(fdt_begin_node(fdt, "aliases") >= 0);
/* <string> */
ut_assertok(fdt_property_string(fdt, "badalias", "/bad/alias"));
/* <string> */
ut_assertok(fdt_property_string(fdt, "subnodealias", "/test-node@1234/subnode"));
/* <string> */
ut_assertok(fdt_property_string(fdt, "testnodealias", "/test-node@1234"));
ut_assertok(fdt_end_node(fdt));
ut_assert(fdt_begin_node(fdt, "test-node@1234") >= 0);
ut_assertok(fdt_property_cell(fdt, "#address-cells", 0));
ut_assertok(fdt_property_cell(fdt, "#size-cells", 0));
/* <string> */
ut_assertok(fdt_property_string(fdt, "compatible", "u-boot,fdt-test-device1"));
/* <stringlist> */
ut_assertok(fdt_property(fdt, "clock-names", "fixed\0i2c\0spi\0uart2\0uart1\0", 26));
/* <empty> */
ut_assertok(fdt_property(fdt, "u-boot,empty-property", NULL, 0));
/*
* <u32>
* This value is deliberate as it used to break cmd/fdt.c
* is_printable_string() implementation.
*/
ut_assertok(fdt_property_u32(fdt, "clock-frequency", 16640000));
/* <prop-encoded-array> */
ut_assertok(fdt_property(fdt, "regs", &regs, sizeof(regs)));
ut_assert(fdt_begin_node(fdt, "subnode") >= 0);
ut_assertok(fdt_property_cell(fdt, "#address-cells", 0));
ut_assertok(fdt_property_cell(fdt, "#size-cells", 0));
ut_assertok(fdt_property_string(fdt, "compatible", "u-boot,fdt-subnode-test-device"));
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_finish(fdt));
return 0;
}
/* Test 'fdt addr' getting/setting address */
static int fdt_test_addr(struct unit_test_state *uts)
{
const void *fdt_blob, *new_fdt;
char fdt[256];
ulong addr;
int ret;
ut_assertok(console_record_reset_enable());
ut_assertok(run_command("fdt addr -c", 0));
ut_assert_nextline("Control fdt: %08lx",
(ulong)map_to_sysmem(gd->fdt_blob));
ut_assertok(ut_check_console_end(uts));
/* The working fdt is not set, so this should fail */
set_working_fdt_addr(0);
ut_assert_nextline("Working FDT set to 0");
ut_asserteq(CMD_RET_FAILURE, run_command("fdt addr", 0));
/*
* sandbox fails the check for !blob since the 0 pointer is mapped to
* memory somewhere other than at 0x0
*/
if (IS_ENABLED(CONFIG_SANDBOX))
ut_assert_nextline("libfdt fdt_check_header(): FDT_ERR_BADMAGIC");
ut_assertok(ut_check_console_end(uts));
/* Set up a working FDT and try again */
ut_assertok(make_test_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
ut_assert_nextline("Working FDT set to %lx", addr);
ut_assertok(run_command("fdt addr", 0));
ut_assert_nextline("Working fdt: %08lx", (ulong)map_to_sysmem(fdt));
ut_assertok(ut_check_console_end(uts));
/* Set the working FDT */
set_working_fdt_addr(0);
ut_assert_nextline("Working FDT set to 0");
ut_assertok(run_commandf("fdt addr %08lx", addr));
ut_assert_nextline("Working FDT set to %lx", addr);
ut_asserteq(addr, map_to_sysmem(working_fdt));
ut_assertok(ut_check_console_end(uts));
set_working_fdt_addr(0);
ut_assert_nextline("Working FDT set to 0");
/* Set the control FDT */
fdt_blob = gd->fdt_blob;
gd->fdt_blob = NULL;
ret = run_commandf("fdt addr -c %08lx", addr);
new_fdt = gd->fdt_blob;
gd->fdt_blob = fdt_blob;
ut_assertok(ret);
ut_asserteq(addr, map_to_sysmem(new_fdt));
ut_assertok(ut_check_console_end(uts));
/* Test setting an invalid FDT */
fdt[0] = 123;
ut_asserteq(1, run_commandf("fdt addr %08lx", addr));
ut_assert_nextline("libfdt fdt_check_header(): FDT_ERR_BADMAGIC");
ut_assertok(ut_check_console_end(uts));
/* Test detecting an invalid FDT */
fdt[0] = 123;
set_working_fdt_addr(addr);
ut_assert_nextline("Working FDT set to %lx", addr);
ut_asserteq(1, run_commandf("fdt addr"));
ut_assert_nextline("libfdt fdt_check_header(): FDT_ERR_BADMAGIC");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_addr, UT_TESTF_CONSOLE_REC);
/* Test 'fdt addr' resizing an fdt */
static int fdt_test_addr_resize(struct unit_test_state *uts)
{
char fdt[256];
const int newsize = sizeof(fdt) / 2;
ulong addr;
ut_assertok(make_test_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test setting and resizing the working FDT to a larger size */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt addr %08lx %x", addr, newsize));
ut_assert_nextline("Working FDT set to %lx", addr);
ut_assertok(ut_check_console_end(uts));
/* Try shrinking it */
ut_assertok(run_commandf("fdt addr %08lx %zx", addr, sizeof(fdt) / 4));
ut_assert_nextline("Working FDT set to %lx", addr);
ut_assert_nextline("New length %d < existing length %d, ignoring",
(int)sizeof(fdt) / 4, newsize);
ut_assertok(ut_check_console_end(uts));
/* ...quietly */
ut_assertok(run_commandf("fdt addr -q %08lx %zx", addr, sizeof(fdt) / 4));
ut_assertok(ut_check_console_end(uts));
/* We cannot easily provoke errors in fdt_open_into(), so ignore that */
return 0;
}
FDT_TEST(fdt_test_addr_resize, UT_TESTF_CONSOLE_REC);
static int fdt_test_move(struct unit_test_state *uts)
{
char fdt[256];
ulong addr, newaddr = 0x10000;
const int size = sizeof(fdt);
uint32_t ts;
void *buf;
/* Original source DT */
ut_assertok(make_test_fdt(uts, fdt, size));
ts = fdt_totalsize(fdt);
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Moved target DT location */
buf = map_sysmem(newaddr, size);
memset(buf, 0, size);
/* Test moving the working FDT to a new location */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt move %08lx %08lx %x", addr, newaddr, ts));
ut_assert_nextline("Working FDT set to %lx", newaddr);
ut_assertok(ut_check_console_end(uts));
/* Compare the source and destination DTs */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("cmp.b %08lx %08lx %x", addr, newaddr, ts));
ut_assert_nextline("Total of %d byte(s) were the same", ts);
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_move, UT_TESTF_CONSOLE_REC);
static int fdt_test_resize(struct unit_test_state *uts)
{
char fdt[256];
const unsigned int newsize = 0x2000;
uint32_t ts;
ulong addr;
/* Original source DT */
ut_assertok(make_test_fdt(uts, fdt, sizeof(fdt)));
fdt_shrink_to_minimum(fdt, 0); /* Resize with 0 extra bytes */
ts = fdt_totalsize(fdt);
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test resizing the working FDT and verify the new space was added */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt resize %x", newsize));
ut_asserteq(ts + newsize, fdt_totalsize(fdt));
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_resize, UT_TESTF_CONSOLE_REC);
static int fdt_test_print_list_common(struct unit_test_state *uts,
const char *opc, const char *node)
{
/*
* Test printing/listing the working FDT
* subnode $node/subnode
*/
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s %s/subnode", opc, node));
ut_assert_nextline("subnode {");
ut_assert_nextline("\t#address-cells = <0x00000000>;");
ut_assert_nextline("\t#size-cells = <0x00000000>;");
ut_assert_nextline("\tcompatible = \"u-boot,fdt-subnode-test-device\";");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/*
* Test printing/listing the working FDT
* path / string property model
*/
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s / model", opc));
ut_assert_nextline("model = \"U-Boot FDT test\"");
ut_assertok(ut_check_console_end(uts));
/*
* Test printing/listing the working FDT
* path $node string property compatible
*/
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s %s compatible", opc, node));
ut_assert_nextline("compatible = \"u-boot,fdt-test-device1\"");
ut_assertok(ut_check_console_end(uts));
/*
* Test printing/listing the working FDT
* path $node stringlist property clock-names
*/
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s %s clock-names", opc, node));
ut_assert_nextline("clock-names = \"fixed\", \"i2c\", \"spi\", \"uart2\", \"uart1\"");
ut_assertok(ut_check_console_end(uts));
/*
* Test printing/listing the working FDT
* path $node u32 property clock-frequency
*/
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s %s clock-frequency", opc, node));
ut_assert_nextline("clock-frequency = <0x00fde800>");
ut_assertok(ut_check_console_end(uts));
/*
* Test printing/listing the working FDT
* path $node empty property u-boot,empty-property
*/
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s %s u-boot,empty-property", opc, node));
/*
* This is the only 'fdt print' / 'fdt list' incantation which
* prefixes the property with node path. This has been in U-Boot
* since the beginning of the command 'fdt', keep it.
*/
ut_assert_nextline("%s u-boot,empty-property", node);
ut_assertok(ut_check_console_end(uts));
/*
* Test printing/listing the working FDT
* path $node prop-encoded array property regs
*/
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s %s regs", opc, node));
ut_assert_nextline("regs = <0x00001234 0x00001000>");
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_print_list(struct unit_test_state *uts, bool print)
{
const char *opc = print ? "print" : "list";
char fdt[4096];
ulong addr;
int ret;
/* Original source DT */
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test printing/listing the working FDT -- node / */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt %s", opc));
ut_assert_nextline("/ {");
ut_assert_nextline("\t#address-cells = <0x00000001>;");
ut_assert_nextline("\t#size-cells = <0x00000001>;");
ut_assert_nextline("\tcompatible = \"u-boot,fdt-test\";");
ut_assert_nextline("\tmodel = \"U-Boot FDT test\";");
ut_assert_nextline("\taliases {");
if (print) {
ut_assert_nextline("\t\tbadalias = \"/bad/alias\";");
ut_assert_nextline("\t\tsubnodealias = \"/test-node@1234/subnode\";");
ut_assert_nextline("\t\ttestnodealias = \"/test-node@1234\";");
}
ut_assert_nextline("\t};");
ut_assert_nextline("\ttest-node@1234 {");
if (print) {
ut_assert_nextline("\t\t#address-cells = <0x00000000>;");
ut_assert_nextline("\t\t#size-cells = <0x00000000>;");
ut_assert_nextline("\t\tcompatible = \"u-boot,fdt-test-device1\";");
ut_assert_nextline("\t\tclock-names = \"fixed\", \"i2c\", \"spi\", \"uart2\", \"uart1\";");
ut_assert_nextline("\t\tu-boot,empty-property;");
ut_assert_nextline("\t\tclock-frequency = <0x00fde800>;");
ut_assert_nextline("\t\tregs = <0x00001234 0x00001000>;");
ut_assert_nextline("\t\tsubnode {");
ut_assert_nextline("\t\t\t#address-cells = <0x00000000>;");
ut_assert_nextline("\t\t\t#size-cells = <0x00000000>;");
ut_assert_nextline("\t\t\tcompatible = \"u-boot,fdt-subnode-test-device\";");
ut_assert_nextline("\t\t};");
}
ut_assert_nextline("\t};");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
ret = fdt_test_print_list_common(uts, opc, "/test-node@1234");
if (!ret)
ret = fdt_test_print_list_common(uts, opc, "testnodealias");
return 0;
}
static int fdt_test_print(struct unit_test_state *uts)
{
return fdt_test_print_list(uts, true);
}
FDT_TEST(fdt_test_print, UT_TESTF_CONSOLE_REC);
static int fdt_test_list(struct unit_test_state *uts)
{
return fdt_test_print_list(uts, false);
}
FDT_TEST(fdt_test_list, UT_TESTF_CONSOLE_REC);
/* Test 'fdt get value' reading an fdt */
static int fdt_test_get_value_string(struct unit_test_state *uts,
const char *node, const char *prop,
const char *idx, const char *strres,
const int intres)
{
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt get value var %s %s %s",
node, prop, idx ? : ""));
if (strres) {
ut_asserteq_str(strres, env_get("var"));
} else {
ut_asserteq(intres, env_get_hex("var", 0x1234));
}
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_get_value_common(struct unit_test_state *uts,
const char *node)
{
/* Test getting default element of $node node clock-names property */
fdt_test_get_value_string(uts, node, "clock-names", NULL, "fixed", 0);
/* Test getting 0th element of $node node clock-names property */
fdt_test_get_value_string(uts, node, "clock-names", "0", "fixed", 0);
/* Test getting 1st element of $node node clock-names property */
fdt_test_get_value_string(uts, node, "clock-names", "1", "i2c", 0);
/* Test getting 2nd element of $node node clock-names property */
fdt_test_get_value_string(uts, node, "clock-names", "2", "spi", 0);
/*
* Test getting default element of $node node regs property.
* The result here is highly unusual, the non-index value read from
* integer array is a string of concatenated values from the array,
* but only if the array is shorter than 40 characters. Anything
* longer is an error. This is a special case for handling hashes.
*/
fdt_test_get_value_string(uts, node, "regs", NULL, "3412000000100000", 0);
/* Test getting 0th element of $node node regs property */
fdt_test_get_value_string(uts, node, "regs", "0", NULL, 0x1234);
/* Test getting 1st element of $node node regs property */
fdt_test_get_value_string(uts, node, "regs", "1", NULL, 0x1000);
/* Test missing 10th element of $node node clock-names property */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt get value ften %s clock-names 10", node));
ut_assertok(ut_check_console_end(uts));
/* Test missing 10th element of $node node regs property */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt get value ften %s regs 10", node));
ut_assertok(ut_check_console_end(uts));
/* Test getting default element of $node node nonexistent property */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt get value fnone %s nonexistent", node));
ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_get_value(struct unit_test_state *uts)
{
char fdt[4096];
ulong addr;
int ret;
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
ret = fdt_test_get_value_common(uts, "/test-node@1234");
if (!ret)
ret = fdt_test_get_value_common(uts, "testnodealias");
if (ret)
return ret;
/* Test getting default element of /nonexistent node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get value fnode /nonexistent nonexistent", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting default element of bad alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get value vbadalias badalias nonexistent", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting default element of nonexistent alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get value vnoalias noalias nonexistent", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_BADPATH");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_get_value, UT_TESTF_CONSOLE_REC);
static int fdt_test_get_name(struct unit_test_state *uts)
{
char fdt[4096];
ulong addr;
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test getting name of node 0 in /, which is /aliases node */
ut_assertok(console_record_reset_enable());
ut_assertok(run_command("fdt get name nzero / 0", 0));
ut_asserteq_str("aliases", env_get("nzero"));
ut_assertok(ut_check_console_end(uts));
/* Test getting name of node 1 in /, which is /test-node@1234 node */
ut_assertok(console_record_reset_enable());
ut_assertok(run_command("fdt get name none / 1", 0));
ut_asserteq_str("test-node@1234", env_get("none"));
ut_assertok(ut_check_console_end(uts));
/* Test getting name of node -1 in /, which is /aliases node, same as 0 */
ut_assertok(console_record_reset_enable());
ut_assertok(run_command("fdt get name nmone / -1", 0));
ut_asserteq_str("aliases", env_get("nmone"));
ut_assertok(ut_check_console_end(uts));
/* Test getting name of node 2 in /, which does not exist */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get name ntwo / 2", 1));
ut_assert_nextline("libfdt node not found");
ut_assertok(ut_check_console_end(uts));
/* Test getting name of node 0 in /test-node@1234, which is /subnode node */
ut_assertok(console_record_reset_enable());
ut_assertok(run_command("fdt get name snzero /test-node@1234 0", 0));
ut_asserteq_str("subnode", env_get("snzero"));
ut_assertok(run_command("fdt get name asnzero testnodealias 0", 0));
ut_asserteq_str("subnode", env_get("asnzero"));
ut_assertok(ut_check_console_end(uts));
/* Test getting name of node 1 in /test-node@1234, which does not exist */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get name snone /test-node@1234 1", 1));
ut_assert_nextline("libfdt node not found");
ut_asserteq(1, run_command("fdt get name asnone testnodealias 1", 1));
ut_assert_nextline("libfdt node not found");
ut_assertok(ut_check_console_end(uts));
/* Test getting name of node -1 in /test-node@1234, which is /subnode node, same as 0 */
ut_assertok(console_record_reset_enable());
ut_assertok(run_command("fdt get name snmone /test-node@1234 -1", 0));
ut_asserteq_str("subnode", env_get("snmone"));
ut_assertok(run_command("fdt get name asnmone testnodealias -1", 0));
ut_asserteq_str("subnode", env_get("asnmone"));
ut_assertok(ut_check_console_end(uts));
/* Test getting name of nonexistent node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get name nonode /nonexistent 0", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting name of bad alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get name vbadalias badalias 0", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting name of nonexistent alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get name vnoalias noalias 0", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_BADPATH");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_get_name, UT_TESTF_CONSOLE_REC);
static int fdt_test_get_addr_common(struct unit_test_state *uts, char *fdt,
const char *path, const char *prop)
{
unsigned int offset;
int path_offset;
void *prop_ptr;
int len = 0;
path_offset = fdt_path_offset(fdt, path);
ut_assert(path_offset >= 0);
prop_ptr = (void *)fdt_getprop(fdt, path_offset, prop, &len);
ut_assertnonnull(prop_ptr);
offset = (char *)prop_ptr - fdt;
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt get addr pstr %s %s", path, prop));
ut_asserteq((ulong)map_sysmem(env_get_hex("fdtaddr", 0x1234), 0),
(ulong)(map_sysmem(env_get_hex("pstr", 0x1234), 0) - offset));
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_get_addr(struct unit_test_state *uts)
{
char fdt[4096];
ulong addr;
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test getting address of root node / string property "compatible" */
fdt_test_get_addr_common(uts, fdt, "/", "compatible");
/* Test getting address of node /test-node@1234 stringlist property "clock-names" */
fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "clock-names");
fdt_test_get_addr_common(uts, fdt, "testnodealias", "clock-names");
/* Test getting address of node /test-node@1234 u32 property "clock-frequency" */
fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "clock-frequency");
fdt_test_get_addr_common(uts, fdt, "testnodealias", "clock-frequency");
/* Test getting address of node /test-node@1234 empty property "u-boot,empty-property" */
fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "u-boot,empty-property");
fdt_test_get_addr_common(uts, fdt, "testnodealias", "u-boot,empty-property");
/* Test getting address of node /test-node@1234 array property "regs" */
fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "regs");
fdt_test_get_addr_common(uts, fdt, "testnodealias", "regs");
/* Test getting address of node /test-node@1234/subnode non-existent property "noprop" */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get addr pnoprop /test-node@1234/subnode noprop", 1));
ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting address of non-existent node /test-node@1234/nonode@1 property "noprop" */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get addr pnonode /test-node@1234/nonode@1 noprop", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_get_addr, UT_TESTF_CONSOLE_REC);
static int fdt_test_get_size_common(struct unit_test_state *uts,
const char *path, const char *prop,
const unsigned int val)
{
ut_assertok(console_record_reset_enable());
if (prop) {
ut_assertok(run_commandf("fdt get size sstr %s %s", path, prop));
} else {
ut_assertok(run_commandf("fdt get size sstr %s", path));
}
ut_asserteq(val, env_get_hex("sstr", 0x1234));
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_get_size(struct unit_test_state *uts)
{
char fdt[4096];
ulong addr;
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test getting size of root node / string property "compatible" */
fdt_test_get_size_common(uts, "/", "compatible", 16);
/* Test getting size of node /test-node@1234 stringlist property "clock-names" */
fdt_test_get_size_common(uts, "/test-node@1234", "clock-names", 26);
fdt_test_get_size_common(uts, "testnodealias", "clock-names", 26);
/* Test getting size of node /test-node@1234 u32 property "clock-frequency" */
fdt_test_get_size_common(uts, "/test-node@1234", "clock-frequency", 4);
fdt_test_get_size_common(uts, "testnodealias", "clock-frequency", 4);
/* Test getting size of node /test-node@1234 empty property "u-boot,empty-property" */
fdt_test_get_size_common(uts, "/test-node@1234", "u-boot,empty-property", 0);
fdt_test_get_size_common(uts, "testnodealias", "u-boot,empty-property", 0);
/* Test getting size of node /test-node@1234 array property "regs" */
fdt_test_get_size_common(uts, "/test-node@1234", "regs", 8);
fdt_test_get_size_common(uts, "testnodealias", "regs", 8);
/* Test getting node count of node / */
fdt_test_get_size_common(uts, "/", NULL, 2);
/* Test getting node count of node /test-node@1234/subnode */
fdt_test_get_size_common(uts, "/test-node@1234/subnode", NULL, 0);
fdt_test_get_size_common(uts, "subnodealias", NULL, 0);
/* Test getting size of node /test-node@1234/subnode non-existent property "noprop" */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get size pnoprop /test-node@1234/subnode noprop", 1));
ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
ut_asserteq(1, run_command("fdt get size pnoprop subnodealias noprop", 1));
ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting size of non-existent node /test-node@1234/nonode@1 property "noprop" */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get size pnonode /test-node@1234/nonode@1 noprop", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting node count of non-existent node /test-node@1234/nonode@1 */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get size pnonode /test-node@1234/nonode@1", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting node count of bad alias badalias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get size pnonode badalias noprop", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test getting node count of non-existent alias noalias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt get size pnonode noalias", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_BADPATH");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_get_size, UT_TESTF_CONSOLE_REC);
static int fdt_test_set_single(struct unit_test_state *uts,
const char *path, const char *prop,
const char *sval, int ival, bool integer)
{
/*
* Set single element string/integer/<empty> property into DT, that is:
* => fdt set /path property string
* => fdt set /path property integer
* => fdt set /path property
*/
ut_assertok(console_record_reset_enable());
if (sval)
ut_assertok(run_commandf("fdt set %s %s %s", path, prop, sval));
else if (integer)
ut_assertok(run_commandf("fdt set %s %s <%d>", path, prop, ival));
else
ut_assertok(run_commandf("fdt set %s %s", path, prop));
/* Validate the property is present and has correct value. */
ut_assertok(run_commandf("fdt get value svar %s %s", path, prop));
if (sval)
ut_asserteq_str(sval, env_get("svar"));
else if (integer)
ut_asserteq(ival, env_get_hex("svar", 0x1234));
else
ut_assertnull(env_get("svar"));
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_set_multi(struct unit_test_state *uts,
const char *path, const char *prop,
const char *sval1, const char *sval2,
int ival1, int ival2)
{
/*
* Set multi element string/integer array property in DT, that is:
* => fdt set /path property <string1 string2>
* => fdt set /path property <integer1 integer2>
*
* The set is done twice in here deliberately, The first set adds
* the property with an extra trailing element in its array to make
* the array longer, the second set is the expected final content of
* the array property. The longer array is used to verify that the
* new array is correctly sized and read past the new array length
* triggers failure.
*/
ut_assertok(console_record_reset_enable());
if (sval1 && sval2) {
ut_assertok(run_commandf("fdt set %s %s %s %s end", path, prop, sval1, sval2));
ut_assertok(run_commandf("fdt set %s %s %s %s", path, prop, sval1, sval2));
} else {
ut_assertok(run_commandf("fdt set %s %s <%d %d 10>", path, prop, ival1, ival2));
ut_assertok(run_commandf("fdt set %s %s <%d %d>", path, prop, ival1, ival2));
}
/*
* Validate the property is present and has correct value.
*
* The "end/10" above and "svarn" below is used to validate that
* previous 'fdt set' to longer array does not polute newly set
* shorter array.
*/
ut_assertok(run_commandf("fdt get value svar1 %s %s 0", path, prop));
ut_assertok(run_commandf("fdt get value svar2 %s %s 1", path, prop));
ut_asserteq(1, run_commandf("fdt get value svarn %s %s 2", path, prop));
if (sval1 && sval2) {
ut_asserteq_str(sval1, env_get("svar1"));
ut_asserteq_str(sval2, env_get("svar2"));
ut_assertnull(env_get("svarn"));
} else {
ut_asserteq(ival1, env_get_hex("svar1", 0x1234));
ut_asserteq(ival2, env_get_hex("svar2", 0x1234));
ut_assertnull(env_get("svarn"));
}
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_set_node(struct unit_test_state *uts,
const char *path, const char *prop)
{
fdt_test_set_single(uts, path, prop, "new", 0, false);
fdt_test_set_single(uts, path, prop, "rewrite", 0, false);
fdt_test_set_single(uts, path, prop, NULL, 42, true);
fdt_test_set_single(uts, path, prop, NULL, 0, false);
fdt_test_set_multi(uts, path, prop, NULL, NULL, 42, 1701);
fdt_test_set_multi(uts, path, prop, NULL, NULL, 74656, 9);
fdt_test_set_multi(uts, path, prop, "42", "1701", 0, 0);
fdt_test_set_multi(uts, path, prop, "74656", "9", 0, 0);
return 0;
}
static int fdt_test_set(struct unit_test_state *uts)
{
char fdt[8192];
ulong addr;
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
fdt_shrink_to_minimum(fdt, 4096); /* Resize with 4096 extra bytes */
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test setting of root node / existing property "compatible" */
fdt_test_set_node(uts, "/", "compatible");
/* Test setting of root node / new property "newproperty" */
fdt_test_set_node(uts, "/", "newproperty");
/* Test setting of subnode existing property "compatible" */
fdt_test_set_node(uts, "/test-node@1234/subnode", "compatible");
fdt_test_set_node(uts, "subnodealias", "compatible");
/* Test setting of subnode new property "newproperty" */
fdt_test_set_node(uts, "/test-node@1234/subnode", "newproperty");
fdt_test_set_node(uts, "subnodealias", "newproperty");
/* Test setting property of non-existent node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt set /no-node noprop", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test setting property of non-existent alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt set noalias noprop", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_BADPATH");
ut_assertok(ut_check_console_end(uts));
/* Test setting property of bad alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_command("fdt set badalias noprop", 1));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_set, UT_TESTF_CONSOLE_REC);
static int fdt_test_mknode(struct unit_test_state *uts)
{
char fdt[8192];
ulong addr;
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
fdt_shrink_to_minimum(fdt, 4096); /* Resize with 4096 extra bytes */
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test creation of new node in / */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt mknode / newnode"));
ut_assertok(run_commandf("fdt list /newnode"));
ut_assert_nextline("newnode {");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/* Test creation of new node in /test-node@1234 */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt mknode /test-node@1234 newsubnode"));
ut_assertok(run_commandf("fdt list /test-node@1234/newsubnode"));
ut_assert_nextline("newsubnode {");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/* Test creation of new node in /test-node@1234 by alias */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt mknode testnodealias newersubnode"));
ut_assertok(run_commandf("fdt list testnodealias/newersubnode"));
ut_assert_nextline("newersubnode {");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/* Test creation of new node in /test-node@1234 over existing node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt mknode testnodealias newsubnode"));
ut_assert_nextline("libfdt fdt_add_subnode(): FDT_ERR_EXISTS");
ut_assertok(ut_check_console_end(uts));
/* Test creation of new node in /test-node@1234 by alias over existing node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt mknode testnodealias newersubnode"));
ut_assert_nextline("libfdt fdt_add_subnode(): FDT_ERR_EXISTS");
ut_assertok(ut_check_console_end(uts));
/* Test creation of new node in non-existent node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt mknode /no-node newnosubnode"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test creation of new node in non-existent alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt mknode noalias newfailsubnode"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_BADPATH");
ut_assertok(ut_check_console_end(uts));
/* Test creation of new node in bad alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt mknode badalias newbadsubnode"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_mknode, UT_TESTF_CONSOLE_REC);
static int fdt_test_rm(struct unit_test_state *uts)
{
char fdt[4096];
ulong addr;
ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test removal of property in root node / */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt print / compatible"));
ut_assert_nextline("compatible = \"u-boot,fdt-test\"");
ut_assertok(run_commandf("fdt rm / compatible"));
ut_asserteq(1, run_commandf("fdt print / compatible"));
ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test removal of property clock-names in subnode /test-node@1234 */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt print /test-node@1234 clock-names"));
ut_assert_nextline("clock-names = \"fixed\", \"i2c\", \"spi\", \"uart2\", \"uart1\"");
ut_assertok(run_commandf("fdt rm /test-node@1234 clock-names"));
ut_asserteq(1, run_commandf("fdt print /test-node@1234 clock-names"));
ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test removal of property u-boot,empty-property in subnode /test-node@1234 by alias */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt print testnodealias u-boot,empty-property"));
ut_assert_nextline("testnodealias u-boot,empty-property");
ut_assertok(run_commandf("fdt rm testnodealias u-boot,empty-property"));
ut_asserteq(1, run_commandf("fdt print testnodealias u-boot,empty-property"));
ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test removal of non-existent property noprop in subnode /test-node@1234 */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt rm /test-node@1234 noprop"));
ut_assert_nextline("libfdt fdt_delprop(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test removal of non-existent node /no-node@5678 */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt rm /no-node@5678"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test removal of subnode /test-node@1234/subnode by alias */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt rm subnodealias"));
ut_asserteq(1, run_commandf("fdt print /test-node@1234/subnode"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test removal of node by non-existent alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt rm noalias"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_BADPATH");
ut_assertok(ut_check_console_end(uts));
/* Test removal of node by bad alias */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt rm noalias"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_BADPATH");
ut_assertok(ut_check_console_end(uts));
/* Test removal of node /test-node@1234 */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt rm /test-node@1234"));
ut_asserteq(1, run_commandf("fdt print /test-node@1234"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test removal of node / */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt rm /"));
ut_asserteq(1, run_commandf("fdt print /"));
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_rm, UT_TESTF_CONSOLE_REC);
static int fdt_test_bootcpu(struct unit_test_state *uts)
{
char fdt[256];
ulong addr;
int i;
ut_assertok(make_test_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test getting default bootcpu entry */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt header get bootcpu boot_cpuid_phys"));
ut_asserteq(0, env_get_ulong("bootcpu", 10, 0x1234));
ut_assertok(ut_check_console_end(uts));
/* Test setting and getting new bootcpu entry, twice, to test overwrite */
for (i = 42; i <= 43; i++) {
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt bootcpu %d", i));
ut_assertok(ut_check_console_end(uts));
/* Test getting new bootcpu entry */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt header get bootcpu boot_cpuid_phys"));
ut_asserteq(i, env_get_ulong("bootcpu", 10, 0x1234));
ut_assertok(ut_check_console_end(uts));
}
return 0;
}
FDT_TEST(fdt_test_bootcpu, UT_TESTF_CONSOLE_REC);
static int fdt_test_header_get(struct unit_test_state *uts,
const char *field, const unsigned long val)
{
/* Test getting valid header entry */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt header get fvar %s", field));
ut_asserteq(val, env_get_hex("fvar", 0x1234));
ut_assertok(ut_check_console_end(uts));
/* Test getting malformed header entry */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt header get fvar typo%stypo", field));
ut_assertok(ut_check_console_end(uts));
return 0;
}
static int fdt_test_header(struct unit_test_state *uts)
{
char fdt[256];
ulong addr;
ut_assertok(make_test_fdt(uts, fdt, sizeof(fdt)));
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test header print */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt header"));
ut_assert_nextline("magic:\t\t\t0x%x", fdt_magic(fdt));
ut_assert_nextline("totalsize:\t\t0x%x (%d)", fdt_totalsize(fdt), fdt_totalsize(fdt));
ut_assert_nextline("off_dt_struct:\t\t0x%x", fdt_off_dt_struct(fdt));
ut_assert_nextline("off_dt_strings:\t\t0x%x", fdt_off_dt_strings(fdt));
ut_assert_nextline("off_mem_rsvmap:\t\t0x%x", fdt_off_mem_rsvmap(fdt));
ut_assert_nextline("version:\t\t%d", fdt_version(fdt));
ut_assert_nextline("last_comp_version:\t%d", fdt_last_comp_version(fdt));
ut_assert_nextline("boot_cpuid_phys:\t0x%x", fdt_boot_cpuid_phys(fdt));
ut_assert_nextline("size_dt_strings:\t0x%x", fdt_size_dt_strings(fdt));
ut_assert_nextline("size_dt_struct:\t\t0x%x", fdt_size_dt_struct(fdt));
ut_assert_nextline("number mem_rsv:\t\t0x%x", fdt_num_mem_rsv(fdt));
ut_assert_nextline_empty();
ut_assertok(ut_check_console_end(uts));
/* Test header get */
fdt_test_header_get(uts, "magic", fdt_magic(fdt));
fdt_test_header_get(uts, "totalsize", fdt_totalsize(fdt));
fdt_test_header_get(uts, "off_dt_struct", fdt_off_dt_struct(fdt));
fdt_test_header_get(uts, "off_dt_strings", fdt_off_dt_strings(fdt));
fdt_test_header_get(uts, "off_mem_rsvmap", fdt_off_mem_rsvmap(fdt));
fdt_test_header_get(uts, "version", fdt_version(fdt));
fdt_test_header_get(uts, "last_comp_version", fdt_last_comp_version(fdt));
fdt_test_header_get(uts, "boot_cpuid_phys", fdt_boot_cpuid_phys(fdt));
fdt_test_header_get(uts, "size_dt_strings", fdt_size_dt_strings(fdt));
fdt_test_header_get(uts, "size_dt_struct", fdt_size_dt_struct(fdt));
return 0;
}
FDT_TEST(fdt_test_header, UT_TESTF_CONSOLE_REC);
static int fdt_test_memory_cells(struct unit_test_state *uts,
const unsigned int cells)
{
unsigned char *pada, *pads;
unsigned char *seta, *sets;
char fdt[8192];
const int size = sizeof(fdt);
fdt32_t *regs;
ulong addr;
char *spc;
int i;
/* Create DT with node /memory { regs = <0x100 0x200>; } and #*cells */
ut_assertnonnull(regs = calloc(2 * cells, sizeof(*regs)));
ut_assertnonnull(pada = calloc(12, cells));
ut_assertnonnull(pads = calloc(12, cells));
ut_assertnonnull(seta = calloc(12, cells));
ut_assertnonnull(sets = calloc(12, cells));
for (i = cells; i >= 1; i--) {
regs[cells - 1] = cpu_to_fdt32(i * 0x10000);
regs[(cells * 2) - 1] = cpu_to_fdt32(~i);
snprintf(seta + (8 * (cells - i)), 9, "%08x", i * 0x10000);
snprintf(sets + (8 * (cells - i)), 9, "%08x", ~i);
spc = (i != 1) ? " " : "";
snprintf(pada + (11 * (cells - i)), 12, "0x%08x%s", i * 0x10000, spc);
snprintf(pads + (11 * (cells - i)), 12, "0x%08x%s", ~i, spc);
}
ut_assertok(fdt_create(fdt, size));
ut_assertok(fdt_finish_reservemap(fdt));
ut_assert(fdt_begin_node(fdt, "") >= 0);
ut_assertok(fdt_property_u32(fdt, "#address-cells", cells));
ut_assertok(fdt_property_u32(fdt, "#size-cells", cells));
ut_assert(fdt_begin_node(fdt, "memory") >= 0);
ut_assertok(fdt_property_string(fdt, "device_type", "memory"));
ut_assertok(fdt_property(fdt, "reg", &regs, cells * 2));
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_finish(fdt));
fdt_shrink_to_minimum(fdt, 4096); /* Resize with 4096 extra bytes */
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test updating the memory node */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt memory 0x%s 0x%s", seta, sets));
ut_assertok(run_commandf("fdt print /memory"));
ut_assert_nextline("memory {");
ut_assert_nextline("\tdevice_type = \"memory\";");
ut_assert_nextline("\treg = <%s %s>;", pada, pads);
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
free(sets);
free(seta);
free(pads);
free(pada);
free(regs);
return 0;
}
static int fdt_test_memory(struct unit_test_state *uts)
{
/*
* Test memory fixup for 32 and 64 bit systems, anything bigger is
* so far unsupported and fails because of simple_stroull() being
* 64bit tops in the 'fdt memory' command implementation.
*/
fdt_test_memory_cells(uts, 1);
fdt_test_memory_cells(uts, 2);
/*
* The 'fdt memory' command is limited to /memory node, it does
* not support any other valid DT memory node format, which is
* either one or multiple /memory@adresss nodes. Therefore, this
* DT variant is not tested here.
*/
return 0;
}
FDT_TEST(fdt_test_memory, UT_TESTF_CONSOLE_REC);
static int fdt_test_rsvmem(struct unit_test_state *uts)
{
char fdt[8192];
ulong addr;
ut_assertok(make_test_fdt(uts, fdt, sizeof(fdt)));
fdt_shrink_to_minimum(fdt, 4096); /* Resize with 4096 extra bytes */
fdt_add_mem_rsv(fdt, 0x42, 0x1701);
fdt_add_mem_rsv(fdt, 0x74656, 0x9);
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test default reserved memory node presence */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt rsvmem print"));
ut_assert_nextline("index\t\t start\t\t size");
ut_assert_nextline("------------------------------------------------");
ut_assert_nextline(" %x\t%016x\t%016x", 0, 0x42, 0x1701);
ut_assert_nextline(" %x\t%016x\t%016x", 1, 0x74656, 0x9);
ut_assertok(ut_check_console_end(uts));
/* Test add new reserved memory node */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt rsvmem add 0x1234 0x5678"));
ut_assertok(run_commandf("fdt rsvmem print"));
ut_assert_nextline("index\t\t start\t\t size");
ut_assert_nextline("------------------------------------------------");
ut_assert_nextline(" %x\t%016x\t%016x", 0, 0x42, 0x1701);
ut_assert_nextline(" %x\t%016x\t%016x", 1, 0x74656, 0x9);
ut_assert_nextline(" %x\t%016x\t%016x", 2, 0x1234, 0x5678);
ut_assertok(ut_check_console_end(uts));
/* Test delete reserved memory node */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt rsvmem delete 0"));
ut_assertok(run_commandf("fdt rsvmem print"));
ut_assert_nextline("index\t\t start\t\t size");
ut_assert_nextline("------------------------------------------------");
ut_assert_nextline(" %x\t%016x\t%016x", 0, 0x74656, 0x9);
ut_assert_nextline(" %x\t%016x\t%016x", 1, 0x1234, 0x5678);
ut_assertok(ut_check_console_end(uts));
/* Test re-add new reserved memory node */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt rsvmem add 0x42 0x1701"));
ut_assertok(run_commandf("fdt rsvmem print"));
ut_assert_nextline("index\t\t start\t\t size");
ut_assert_nextline("------------------------------------------------");
ut_assert_nextline(" %x\t%016x\t%016x", 0, 0x74656, 0x9);
ut_assert_nextline(" %x\t%016x\t%016x", 1, 0x1234, 0x5678);
ut_assert_nextline(" %x\t%016x\t%016x", 2, 0x42, 0x1701);
ut_assertok(ut_check_console_end(uts));
/* Test delete nonexistent reserved memory node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt rsvmem delete 10"));
ut_assert_nextline("libfdt fdt_del_mem_rsv(): FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_rsvmem, UT_TESTF_CONSOLE_REC);
static int fdt_test_chosen(struct unit_test_state *uts)
{
const char *env_bootargs = env_get("bootargs");
char fdt[8192];
ulong addr;
ut_assertok(make_test_fdt(uts, fdt, sizeof(fdt)));
fdt_shrink_to_minimum(fdt, 4096); /* Resize with 4096 extra bytes */
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Test default chosen node presence, fail as there is no /chosen node */
ut_assertok(console_record_reset_enable());
ut_asserteq(1, run_commandf("fdt print /chosen"));
ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
ut_assertok(ut_check_console_end(uts));
/* Test add new chosen node without initrd */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt chosen"));
ut_assertok(run_commandf("fdt print /chosen"));
ut_assert_nextline("chosen {");
ut_assert_nextlinen("\tu-boot,version = "); /* Ignore the version string */
if (env_bootargs)
ut_assert_nextline("\tbootargs = \"%s\";", env_bootargs);
if (IS_ENABLED(CONFIG_DM_RNG) &&
!IS_ENABLED(CONFIG_MEASURED_BOOT) &&
!IS_ENABLED(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT))
ut_assert_nextlinen("\tkaslr-seed = ");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/* Test add new chosen node with initrd */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt chosen 0x1234 0x5678"));
ut_assertok(run_commandf("fdt print /chosen"));
ut_assert_nextline("chosen {");
ut_assert_nextline("\tlinux,initrd-end = <0x%08x 0x%08x>;",
upper_32_bits(0x1234 + 0x5678 - 1),
lower_32_bits(0x1234 + 0x5678 - 1));
ut_assert_nextline("\tlinux,initrd-start = <0x%08x 0x%08x>;",
upper_32_bits(0x1234), lower_32_bits(0x1234));
ut_assert_nextlinen("\tu-boot,version = "); /* Ignore the version string */
if (env_bootargs)
ut_assert_nextline("\tbootargs = \"%s\";", env_bootargs);
if (IS_ENABLED(CONFIG_DM_RNG) &&
!IS_ENABLED(CONFIG_MEASURED_BOOT) &&
!IS_ENABLED(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT))
ut_assert_nextlinen("\tkaslr-seed = ");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_chosen, UT_TESTF_CONSOLE_REC);
static int fdt_test_apply(struct unit_test_state *uts)
{
char fdt[8192], fdto[8192];
ulong addr, addro;
/* Create base DT with __symbols__ node */
ut_assertok(fdt_create(fdt, sizeof(fdt)));
ut_assertok(fdt_finish_reservemap(fdt));
ut_assert(fdt_begin_node(fdt, "") >= 0);
ut_assert(fdt_begin_node(fdt, "__symbols__") >= 0);
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_end_node(fdt));
ut_assertok(fdt_finish(fdt));
fdt_shrink_to_minimum(fdt, 4096); /* Resize with 4096 extra bytes */
addr = map_to_sysmem(fdt);
set_working_fdt_addr(addr);
/* Create DTO which adds single property to root node / */
ut_assertok(fdt_create(fdto, sizeof(fdto)));
ut_assertok(fdt_finish_reservemap(fdto));
ut_assert(fdt_begin_node(fdto, "") >= 0);
ut_assert(fdt_begin_node(fdto, "fragment") >= 0);
ut_assertok(fdt_property_string(fdto, "target-path", "/"));
ut_assert(fdt_begin_node(fdto, "__overlay__") >= 0);
ut_assertok(fdt_property_string(fdto, "newstring", "newvalue"));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_finish(fdto));
addro = map_to_sysmem(fdto);
/* Test default DT print */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt print /"));
ut_assert_nextline("/ {");
ut_assert_nextline("\t__symbols__ {");
ut_assert_nextline("\t};");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/* Test simple DTO application */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt apply 0x%08lx", addro));
ut_assertok(run_commandf("fdt print /"));
ut_assert_nextline("/ {");
ut_assert_nextline("\tnewstring = \"newvalue\";");
ut_assert_nextline("\t__symbols__ {");
ut_assert_nextline("\t};");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/*
* Create complex DTO which:
* - modifies newstring property in root node /
* - adds new properties to root node /
* - adds new subnode with properties to root node /
* - adds phandle to the subnode and therefore __symbols__ node
*/
ut_assertok(fdt_create(fdto, sizeof(fdto)));
ut_assertok(fdt_finish_reservemap(fdto));
ut_assert(fdt_begin_node(fdto, "") >= 0);
ut_assertok(fdt_property_cell(fdto, "#address-cells", 1));
ut_assertok(fdt_property_cell(fdto, "#size-cells", 0));
ut_assert(fdt_begin_node(fdto, "fragment@0") >= 0);
ut_assertok(fdt_property_string(fdto, "target-path", "/"));
ut_assert(fdt_begin_node(fdto, "__overlay__") >= 0);
ut_assertok(fdt_property_string(fdto, "newstring", "newervalue"));
ut_assertok(fdt_property_u32(fdto, "newu32", 0x12345678));
ut_assertok(fdt_property(fdto, "empty-property", NULL, 0));
ut_assert(fdt_begin_node(fdto, "subnode") >= 0);
ut_assertok(fdt_property_string(fdto, "subnewstring", "newervalue"));
ut_assertok(fdt_property_u32(fdto, "subnewu32", 0x12345678));
ut_assertok(fdt_property(fdto, "subempty-property", NULL, 0));
ut_assertok(fdt_property_u32(fdto, "phandle", 0x01));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_end_node(fdto));
ut_assert(fdt_begin_node(fdto, "__symbols__") >= 0);
ut_assertok(fdt_property_string(fdto, "subnodephandle", "/fragment@0/__overlay__/subnode"));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_finish(fdto));
addro = map_to_sysmem(fdto);
/* Test complex DTO application */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt apply 0x%08lx", addro));
ut_assertok(run_commandf("fdt print /"));
ut_assert_nextline("/ {");
ut_assert_nextline("\tempty-property;");
ut_assert_nextline("\tnewu32 = <0x12345678>;");
ut_assert_nextline("\tnewstring = \"newervalue\";");
ut_assert_nextline("\tsubnode {");
ut_assert_nextline("\t\tphandle = <0x00000001>;");
ut_assert_nextline("\t\tsubempty-property;");
ut_assert_nextline("\t\tsubnewu32 = <0x12345678>;");
ut_assert_nextline("\t\tsubnewstring = \"newervalue\";");
ut_assert_nextline("\t};");
ut_assert_nextline("\t__symbols__ {");
ut_assert_nextline("\t\tsubnodephandle = \"/subnode\";");
ut_assert_nextline("\t};");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
/*
* Create complex DTO which:
* - modifies subnewu32 property in subnode via phandle and uses __fixups__ node
*/
ut_assertok(fdt_create(fdto, sizeof(fdto)));
ut_assertok(fdt_finish_reservemap(fdto));
ut_assert(fdt_begin_node(fdto, "") >= 0);
ut_assertok(fdt_property_cell(fdto, "#address-cells", 1));
ut_assertok(fdt_property_cell(fdto, "#size-cells", 0));
ut_assert(fdt_begin_node(fdto, "fragment@0") >= 0);
ut_assertok(fdt_property_u32(fdto, "target", 0xffffffff));
ut_assert(fdt_begin_node(fdto, "__overlay__") >= 0);
ut_assertok(fdt_property_u32(fdto, "subnewu32", 0xabcdef01));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_end_node(fdto));
ut_assert(fdt_begin_node(fdto, "__fixups__") >= 0);
ut_assertok(fdt_property_string(fdto, "subnodephandle", "/fragment@0:target:0"));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_end_node(fdto));
ut_assertok(fdt_finish(fdto));
addro = map_to_sysmem(fdto);
/* Test complex DTO application */
ut_assertok(console_record_reset_enable());
ut_assertok(run_commandf("fdt apply 0x%08lx", addro));
ut_assertok(run_commandf("fdt print /"));
ut_assert_nextline("/ {");
ut_assert_nextline("\tempty-property;");
ut_assert_nextline("\tnewu32 = <0x12345678>;");
ut_assert_nextline("\tnewstring = \"newervalue\";");
ut_assert_nextline("\tsubnode {");
ut_assert_nextline("\t\tphandle = <0x00000001>;");
ut_assert_nextline("\t\tsubempty-property;");
ut_assert_nextline("\t\tsubnewu32 = <0xabcdef01>;");
ut_assert_nextline("\t\tsubnewstring = \"newervalue\";");
ut_assert_nextline("\t};");
ut_assert_nextline("\t__symbols__ {");
ut_assert_nextline("\t\tsubnodephandle = \"/subnode\";");
ut_assert_nextline("\t};");
ut_assert_nextline("};");
ut_assertok(ut_check_console_end(uts));
return 0;
}
FDT_TEST(fdt_test_apply, UT_TESTF_CONSOLE_REC);
int do_ut_fdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
struct unit_test *tests = UNIT_TEST_SUITE_START(fdt_test);
const int n_ents = UNIT_TEST_SUITE_COUNT(fdt_test);
return cmd_ut_category("fdt", "fdt_test_", tests, n_ents, argc, argv);
}
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