diff options
| -rw-r--r-- | src/include/cbmem.h | 2 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/vboot2/Kconfig | 10 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/vboot2/common.c | 14 |
3 files changed, 24 insertions, 2 deletions
diff --git a/src/include/cbmem.h b/src/include/cbmem.h index c5cd52a80b..07e5645397 100644 --- a/src/include/cbmem.h +++ b/src/include/cbmem.h @@ -84,6 +84,7 @@ #define CBMEM_ID_STAGEx_CACHE 0x57a9e100 #define CBMEM_ID_TIMESTAMP 0x54494d45 #define CBMEM_ID_VBOOT_HANDOFF 0x780074f0 +#define CBMEM_ID_VBOOT_WORKBUF 0x78007343 #define CBMEM_ID_WIFI_CALIBRATION 0x57494649 #ifndef __ASSEMBLER__ @@ -128,6 +129,7 @@ { CBMEM_ID_SPINTABLE, "SPIN TABLE " }, \ { CBMEM_ID_TIMESTAMP, "TIME STAMP " }, \ { CBMEM_ID_VBOOT_HANDOFF, "VBOOT " }, \ + { CBMEM_ID_VBOOT_WORKBUF, "VBOOT WORK " }, \ { CBMEM_ID_WIFI_CALIBRATION, "WIFI CLBR " }, struct cbmem_entry; diff --git a/src/vendorcode/google/chromeos/vboot2/Kconfig b/src/vendorcode/google/chromeos/vboot2/Kconfig index bb6c1add0a..a086785e3f 100644 --- a/src/vendorcode/google/chromeos/vboot2/Kconfig +++ b/src/vendorcode/google/chromeos/vboot2/Kconfig @@ -101,3 +101,13 @@ config VBOOT_BOOT_LOADER_INDEX help This is the index of the bootloader component in the verified firmware block. + +config VBOOT_DYNAMIC_WORK_BUFFER + bool "Vboot's work buffer is dynamically allocated." + default n + depends on VBOOT_VERIFY_FIRMWARE + help + This option is used when there isn't enough pre-main memory + ram to allocate the vboot work buffer. That means vboot verification + is after memory init and requires main memory to back the work + buffer. diff --git a/src/vendorcode/google/chromeos/vboot2/common.c b/src/vendorcode/google/chromeos/vboot2/common.c index 289005c996..deb0c8816c 100644 --- a/src/vendorcode/google/chromeos/vboot2/common.c +++ b/src/vendorcode/google/chromeos/vboot2/common.c @@ -18,6 +18,7 @@ */ #include <cbfs.h> +#include <cbmem.h> #include <console/console.h> #include <reset.h> #include "../chromeos.h" @@ -25,14 +26,23 @@ #include "../vboot_handoff.h" #include "misc.h" +static const size_t vb_work_buf_size = 16 * KiB; + struct vb2_working_data * const vboot_get_working_data(void) { - return (struct vb2_working_data *)_vboot2_work; + if (IS_ENABLED(CONFIG_VBOOT_DYNAMIC_WORK_BUFFER)) + /* cbmem_add() does a cbmem_find() first. */ + return cbmem_add(CBMEM_ID_VBOOT_WORKBUF, vb_work_buf_size); + else + return (struct vb2_working_data *)_vboot2_work; } size_t vb2_working_data_size(void) { - return _vboot2_work_size; + if (IS_ENABLED(CONFIG_VBOOT_DYNAMIC_WORK_BUFFER)) + return vb_work_buf_size; + else + return _vboot2_work_size; } void *vboot_get_work_buffer(struct vb2_working_data *wd) |