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vboot2: implement vb2ex_read_resource 

TEST=Built with VBOOT2_VERIFY_FIRMWARE on/off. Booted Nyan Blaze.
BUG=None
BRANCH=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>

Original-Change-Id: I633f9dddbf8b2f25797aacc246bcebaafb02bea4
Original-Reviewed-on: https://chromium-review.googlesource.com/206063
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit 1f215672de31847cc647e83d2c04633b7f8dfa33)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I57f449b052132b300f7bca4351871c539a7a8694
Reviewed-on: http://review.coreboot.org/8161
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
This commit is contained in:
Daisuke Nojiri 2014-06-30 08:28:17 -07:00 committed by Marc Jones
parent bcc1d422a2
commit 1989a53ade
1 changed files with 36 additions and 17 deletions
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53
src/vendorcode/google/chromeos/vboot_main.c
View File

@ -31,6 +31,23 @@ struct vboot_region {
int32_t size; int32_t size;
}; };
static void locate_region(const char *name, struct vboot_region *region)
{
region->size = find_fmap_entry(name, (void **)&region->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 */ /* exports */
void vb2ex_printf(const char *func, const char *fmt, ...) void vb2ex_printf(const char *func, const char *fmt, ...)
@ -57,27 +74,29 @@ int vb2ex_read_resource(struct vb2_context *ctx,
void *buf, void *buf,
uint32_t size) uint32_t size)
{ {
VBDEBUG("Reading resource\n"); struct vboot_region region;
return VB2_ERROR_UNKNOWN;
}
/* locals */ switch (index) {
case VB2_RES_GBB:
locate_region("GBB", &region);
break;
case VB2_RES_FW_VBLOCK:
if (is_slot_a(ctx))
locate_region("VBLOCK_A", &region);
else
locate_region("VBLOCK_B", &region);
break;
default:
return VB2_ERROR_EX_READ_RESOURCE_INDEX;
}
static void locate_region(const char *name, struct vboot_region *region) if (offset + size > region.size)
{ return VB2_ERROR_EX_READ_RESOURCE_SIZE;
region->size = find_fmap_entry(name, (void **)&region->offset_addr);
VBDEBUG("Located %s @%x\n", name, region->offset_addr);
}
static int is_slot_a(struct vb2_context *ctx) if (vboot_get_region(region.offset_addr + offset, size, buf) == NULL)
{ return VB2_ERROR_UNKNOWN;
return !(ctx->flags & VB2_CONTEXT_FW_SLOT_B);
}
static int in_ro(void) return VB2_SUCCESS;
{
/* TODO: Implement */
return 1;
} }
static void reboot(void) static void reboot(void)