Change in coreboot[master]: util/cbfstool: Catch baseaddress parameter errors early

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/56127 )

Change subject: util/cbfstool: Catch baseaddress parameter errors early
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util/cbfstool: Catch baseaddress parameter errors early

Instead of just failing, provide accurate errors early on, on why a
base parameter might be wrong. Also return if a non-XIP FSP has a
flash mapped base address, as loading a binary in RO flash will cause
runtime errors.

Change-Id: Icfd121b34ce79fe1394f79d5cbd4da6ddf5c5656
Signed-off-by: Arthur Heymans 
---
M util/cbfstool/cbfstool.c
1 file changed, 23 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/56127/1

diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c
index 1032ab2..678a28c 100644
--- a/util/cbfstool/cbfstool.c
+++ b/util/cbfstool/cbfstool.c
@@ -804,6 +804,29 @@
    	return 1;
    }

+	if (param.baseaddress_assigned) {
+		if (param.type == CBFS_TYPE_FSP && param.stage_xip) {
+			assert(create_mmap_windows());
+			if (!find_mmap_window(HOST_SPACE_ADDR, param.baseaddress)) {
+				ERROR("Wrong -b parameter: FSP non-XIP has to be located outside of flash\n");
+				return 1;
+			}
+		} else {
+			if (IS_HOST_SPACE_ADDRESS(param.baseaddress)) {
+				if (find_mmap_window(HOST_SPACE_ADDR, param.baseaddress)) {
+					ERROR("Wrong -b parameter: base not mapped inside flash\n");
+					return 1;
+				}
+			} else {
+				if (param.baseaddress >= param.image_region->size) {
+					ERROR("Wrong -b parameter: base bigger than %s region\n",
+					      param.region_name);
+					return 1;
+				}
+			}
+		}
+	}
+
    if (!filename) {
    	ERROR("You need to specify -f/--filename.\n");
    	return 1;