diff options
| -rw-r--r-- | src/vendorcode/google/chromeos/vboot_main.c | 55 |
1 files changed, 37 insertions, 18 deletions
diff --git a/src/vendorcode/google/chromeos/vboot_main.c b/src/vendorcode/google/chromeos/vboot_main.c index 9779d35eea..907afd73b3 100644 --- a/src/vendorcode/google/chromeos/vboot_main.c +++ b/src/vendorcode/google/chromeos/vboot_main.c @@ -31,6 +31,23 @@ struct vboot_region { int32_t size; }; +static void locate_region(const char *name, struct vboot_region *region) +{ + region->size = find_fmap_entry(name, (void **)®ion->offset_addr); + VBDEBUG("Located %s @%x\n", name, region->offset_addr); +} + +static int is_slot_a(struct vb2_context *ctx) +{ + return !(ctx->flags & VB2_CONTEXT_FW_SLOT_B); +} + +static int in_ro(void) +{ + /* TODO: Implement */ + return 1; +} + /* exports */ void vb2ex_printf(const char *func, const char *fmt, ...) @@ -57,27 +74,29 @@ int vb2ex_read_resource(struct vb2_context *ctx, void *buf, uint32_t size) { - VBDEBUG("Reading resource\n"); - return VB2_ERROR_UNKNOWN; -} + struct vboot_region region; + + switch (index) { + case VB2_RES_GBB: + locate_region("GBB", ®ion); + break; + case VB2_RES_FW_VBLOCK: + if (is_slot_a(ctx)) + locate_region("VBLOCK_A", ®ion); + else + locate_region("VBLOCK_B", ®ion); + break; + default: + return VB2_ERROR_EX_READ_RESOURCE_INDEX; + } -/* locals */ + if (offset + size > region.size) + return VB2_ERROR_EX_READ_RESOURCE_SIZE; -static void locate_region(const char *name, struct vboot_region *region) -{ - region->size = find_fmap_entry(name, (void **)®ion->offset_addr); - VBDEBUG("Located %s @%x\n", name, region->offset_addr); -} + if (vboot_get_region(region.offset_addr + offset, size, buf) == NULL) + return VB2_ERROR_UNKNOWN; -static int is_slot_a(struct vb2_context *ctx) -{ - return !(ctx->flags & VB2_CONTEXT_FW_SLOT_B); -} - -static int in_ro(void) -{ - /* TODO: Implement */ - return 1; + return VB2_SUCCESS; } static void reboot(void) |