diff options
author | Nikolai Artemiev <nartemiev@google.com> | 2023-05-03 11:05:07 +1000 |
---|---|---|
committer | Anastasia Klimchuk <aklm@chromium.org> | 2023-05-09 07:43:23 +0000 |
commit | 00c9fac2a66ab2aafc6949166dfc733fd0b747ea (patch) | |
tree | 0093e9304ae7d4c657fed35cc47ca7a8ba313921 /tests | |
parent | fc6a09ba1fe76472a5b5959008cd699eeccd25d5 (diff) | |
download | flashrom-00c9fac2a66ab2aafc6949166dfc733fd0b747ea.tar.gz flashrom-00c9fac2a66ab2aafc6949166dfc733fd0b747ea.tar.bz2 flashrom-00c9fac2a66ab2aafc6949166dfc733fd0b747ea.zip |
flashrom: Use WP-based unlocking on opaque masters
Flashrom only tries to use WP-based unlocking if it detects that WP
operations are supported. However WP support was detected in a way that
ignored WP operations provided by opaque masters.
This stopped flashrom from automatically unlocking with some opaque
masters, particularly linux_mtd.
This commit also deletes part of a test that required the chip unlock
function to be called before read/write/erase operations because WP
unlocking is now used instead of chip unlocking.
BUG=b:280111380
BRANCH=none
TEST=Checked flashrom automatically unlocked flash on strongbad (MTD)
Change-Id: I1774ad64d82ae47cd085df6045e17e283855c01f
Signed-off-by: Nikolai Artemiev <nartemiev@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/74930
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com>
Diffstat (limited to 'tests')
-rw-r--r-- | tests/chip.c | 37 |
1 files changed, 1 insertions, 36 deletions
diff --git a/tests/chip.c b/tests/chip.c index 6a17d8627..96be7b108 100644 --- a/tests/chip.c +++ b/tests/chip.c @@ -20,7 +20,7 @@ * Example of test: erase_chip_test_success. * * 2) Mock chip operations backed by `dummyflasher` emulation. - * Dummyflasher controls chip state and emulates read/write/unlock/erase. + * Dummyflasher controls chip state and emulates read/write/erase. * `g_chip_state` is NOT used for this type of tests. * Example of test: erase_chip_with_dummyflasher_test_success. */ @@ -40,20 +40,14 @@ #define MOCK_CHIP_CONTENT 0xCC /* 0x00 is a zeroed heap and 0xFF is an erased chip. */ static struct { - unsigned int unlock_calls; /* how many times unlock function was called */ uint8_t buf[MOCK_CHIP_SIZE]; /* buffer of total size of chip, to emulate a chip */ } g_chip_state = { - .unlock_calls = 0, .buf = { 0 }, }; static int read_chip(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len) { printf("Read chip called with start=0x%x, len=0x%x\n", start, len); - if (!g_chip_state.unlock_calls) { - printf("Error while reading chip: unlock was not called.\n"); - return 1; - } assert_in_range(start + len, 0, MOCK_CHIP_SIZE); @@ -64,10 +58,6 @@ static int read_chip(struct flashctx *flash, uint8_t *buf, unsigned int start, u static int write_chip(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { printf("Write chip called with start=0x%x, len=0x%x\n", start, len); - if (!g_chip_state.unlock_calls) { - printf("Error while writing chip: unlock was not called.\n"); - return 1; - } assert_in_range(start + len, 0, MOCK_CHIP_SIZE); @@ -75,26 +65,9 @@ static int write_chip(struct flashctx *flash, const uint8_t *buf, unsigned int s return 0; } -static int unlock_chip(struct flashctx *flash) -{ - printf("Unlock chip called\n"); - g_chip_state.unlock_calls++; - - if (g_chip_state.unlock_calls > 1) { - printf("Error: Unlock called twice\n"); - return -1; - } - - return 0; -} - static int block_erase_chip(struct flashctx *flash, unsigned int blockaddr, unsigned int blocklen) { printf("Block erase called with blockaddr=0x%x, blocklen=0x%x\n", blockaddr, blocklen); - if (!g_chip_state.unlock_calls) { - printf("Error while erasing chip: unlock was not called.\n"); - return 1; - } assert_in_range(blockaddr + blocklen, 0, MOCK_CHIP_SIZE); @@ -109,7 +82,6 @@ static void setup_chip(struct flashrom_flashctx *flashctx, struct flashrom_layou flashctx->chip = chip; - g_chip_state.unlock_calls = 0; memset(g_chip_state.buf, MOCK_CHIP_CONTENT, sizeof(g_chip_state.buf)); printf("Creating layout with one included region... "); @@ -149,7 +121,6 @@ static void teardown(struct flashrom_layout **layout) extern write_func_t *g_test_write_injector; extern read_func_t *g_test_read_injector; extern erasefunc_t *g_test_erase_injector; -extern blockprotect_func_t *g_test_unlock_injector; static const struct flashchip chip_8MiB = { .vendor = "aklm", @@ -157,7 +128,6 @@ static const struct flashchip chip_8MiB = { .tested = TEST_OK_PREW, .read = TEST_READ_INJECTOR, .write = TEST_WRITE_INJECTOR, - .unlock = TEST_UNLOCK_INJECTOR, .block_erasers = {{ /* All blocks within total size of the chip. */ @@ -173,7 +143,6 @@ static const struct flashchip chip_W25Q128_V = { .tested = TEST_OK_PREW, .read = SPI_CHIP_READ, .write = SPI_CHIP_WRITE256, - .unlock = SPI_DISABLE_BLOCKPROTECT, .page_size = 256, .block_erasers = { @@ -211,7 +180,6 @@ void erase_chip_test_success(void **state) g_test_write_injector = write_chip; g_test_read_injector = read_chip; g_test_erase_injector = block_erase_chip; - g_test_unlock_injector = unlock_chip; struct flashrom_flashctx flashctx = { 0 }; struct flashrom_layout *layout; struct flashchip mock_chip = chip_8MiB; @@ -271,7 +239,6 @@ void read_chip_test_success(void **state) g_test_write_injector = write_chip; g_test_read_injector = read_chip; g_test_erase_injector = block_erase_chip; - g_test_unlock_injector = unlock_chip; struct flashrom_flashctx flashctx = { 0 }; struct flashrom_layout *layout; struct flashchip mock_chip = chip_8MiB; @@ -347,7 +314,6 @@ void write_chip_test_success(void **state) g_test_write_injector = write_chip; g_test_read_injector = read_chip; g_test_erase_injector = block_erase_chip; - g_test_unlock_injector = unlock_chip; struct flashrom_flashctx flashctx = { 0 }; struct flashrom_layout *layout; struct flashchip mock_chip = chip_8MiB; @@ -539,7 +505,6 @@ void verify_chip_test_success(void **state) g_test_write_injector = write_chip; g_test_read_injector = read_chip; g_test_erase_injector = block_erase_chip; - g_test_unlock_injector = unlock_chip; struct flashrom_flashctx flashctx = { 0 }; struct flashrom_layout *layout; struct flashchip mock_chip = chip_8MiB; |