diff options
| -rw-r--r-- | src/soc/amd/common/vboot/transfer_buffer.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/amd/common/vboot/transfer_buffer.c b/src/soc/amd/common/vboot/transfer_buffer.c index 63b4f8efe6..e08847e8ca 100644 --- a/src/soc/amd/common/vboot/transfer_buffer.c +++ b/src/soc/amd/common/vboot/transfer_buffer.c @@ -10,6 +10,8 @@ #include <timestamp.h> #include <2struct.h> +DECLARE_REGION(cbmemc_transfer) + int transfer_buffer_valid(const struct transfer_info_struct *ptr) { if (ptr->magic_val == TRANSFER_MAGIC_VAL && ptr->struct_bytes == sizeof(*ptr)) @@ -85,6 +87,13 @@ void replay_transfer_buffer_cbmemc(void) cbmemc = (void *)((uintptr_t)info + info->console_offset); + /* Verify the cbmemc transfer buffer is where we expect it to be. */ + if ((void *)_cbmemc_transfer != (void *)cbmemc) + return; + + if (REGION_SIZE(cbmemc_transfer) != cbmemc_size) + return; + /* We need to manually initialize cbmemc so we can fill the new buffer. cbmemc_init() * will also be called later in console_hw_init(), but it will be a no-op. */ cbmemc_init(); |