@@ -55,6 +55,71 @@ or via bmap-tools
bmaptool copy build/tmp/deploy/images/bbb/cip-core-image-cip-core-buster-bbb.wic.img /dev/<medium-device>
+## Running Secure Boot Target Images and test it
+Create a folder named `keys` if not exist and within this folder create the signing keys and db
+
+```bash
+#PK
+openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=SIEMENS_TEST_PK/ -keyout PK.key -out PK.crt -nodes -days 365
+cert-to-efi-sig-list -g 11111111-2222-3333-4444-123456789abc PK.crt PK.esl
+sign-efi-sig-list -c PK.crt -k PK.key PK PK.esl PK.auth
+
+# KEK
+openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=SIEMENS_TEST_KEK/ -keyout KEK.key -out KEK.crt -nodes -days 365
+cert-to-efi-sig-list -g 11111111-2222-3333-4444-123456789abc KEK.crt KEK.esl
+sign-efi-sig-list -c PK.crt -k PK.key KEK KEK.esl KEK.auth
+
+# db
+openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=SIEMENS_TEST_db/ -keyout db.key -out db.crt -nodes -days 365
+cert-to-efi-sig-list -g 11111111-2222-3333-4444-123456789abc db.crt db.esl
+sign-efi-sig-list -c KEK.crt -k KEK.key db db.esl db.auth
+```
+
+Put an bootable `.efi` file in it or use the `helloworld.efi` provided and sign it.
+
+```
+sbsign --key db.key --cert db.crt helloworld.efi
+```
+
+The `start-qemu.sh` has additional `-hdb fat:rw:keys` added with this patch to mount the `keys` folder.
+
+Start the qemu with following command
+
+```
+FIRMWARE_BIN=./build/tmp/deploy/images/qemu-arm64/flash.bin ./start-qemu.sh aarch64
+```
+
+In this test patch there is as well the possibility added to stop in the u-boot. So if you see a 5 sec timer ticking press Enter to stop.
+
+Now add the keys to the environment my typing
+
+```
+fatload virtio 1:1 ${fileaddr} PK.auth
+setenv -e -nv -bs -rt -at -i ${fileaddr}:$filesize PK
+fatload virtio 1:1 ${fileaddr} KEK.auth
+setenv -e -nv -bs -rt -at -i ${fileaddr}:$filesize KEK
+fatload virtio 1:1 ${fileaddr} db.auth
+setenv -e -nv -bs -rt -at -i ${fileaddr}:$filesize db
+```
+> The address ${fileaddr}=40000000 depends on your DRAM setup. You can check with `bdinfo`
+
+> $filesize is set by fatload
+
+### Boot signed efi binary
+
+```
+fatload virtio 1:1 ${fileaddr} helloworld.efi.signed
+
+bootefi ${fileaddr} ${fdtcontroladdr}
+```
+
+### Try same binary but unsigned
+This should fail with `Image not authenticated. Loading image failed`
+```
+fatload virtio 1:1 ${fileaddr} helloworld.efi
+
+bootefi ${fileaddr} ${fdtcontroladdr}
+```
## Community Resources
new file mode 100644
GIT binary patch
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HcmV?d00001
@@ -1,5 +1,5 @@
### Secure boot config
-CONFIG_BOOTDELAY=-2
+CONFIG_BOOTDELAY=5
CONFIG_USE_BOOTCOMMAND=y
CONFIG_BOOTCOMMAND="setenv scan_dev_for_boot 'if test -e ${devtype} ${devnum}:${distro_bootpart} efi/boot/boot${EFI_ARCH}.efi; then load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} efi/boot/boot${EFI_ARCH}.efi; bootefi ${kernel_addr_r} ${fdtcontroladdr}; fi'; run distro_bootcmd; echo 'EFI Boot failed!'; sleep 1000; reset"
CONFIG_EFI_VARIABLES_PRESEED=y
@@ -179,7 +179,8 @@ if [ -n "${SECURE_BOOT}${SWUPDATE_BOOT}" ]; then
${QEMU_PATH}${QEMU} \
-drive file=${IMAGE_PREFIX}.wic,discard=unmap,if=none,id=disk,format=raw \
-bios ${u_boot_bin} \
- ${QEMU_COMMON_OPTIONS} "$@"
+ ${QEMU_COMMON_OPTIONS} "$@" \
+ -hdb fat:rw:keys
;;
*)
echo "Unsupported architecture: ${arch}"