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From: Dick Olsson <hi@senzilla.io>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v3 07/11] boot/arm-trusted-firmware: add EDK2 as BL33 option
Date: Fri, 18 Dec 2020 20:27:42 +0000	[thread overview]
Message-ID: <20201218202646.1060123-8-hi@senzilla.io> (raw)
In-Reply-To: <20201218202646.1060123-1-hi@senzilla.io>

ARM Trusted Firmware (ATF) has the ability to load EDK2 UEFI when
dropping into EL2. This is done via a new configuration option that
build the BL33 payload with EDK2 images that will run in the EL2
context.

Signed-off-by: Dick Olsson <hi@senzilla.io>

---

Revision 3:

 * Fixed merge conflict after previous spurious change

Revision 2:

 * It was concluded that relying on variables from EDK2 is ok
   since they are expanded inside _BUILD_CMDS
 * Now relying on the more specific variable EDK2_EL2_NAME for BL33
---
 boot/arm-trusted-firmware/Config.in               | 15 ++++++++++++++-
 boot/arm-trusted-firmware/arm-trusted-firmware.mk |  8 ++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/boot/arm-trusted-firmware/Config.in b/boot/arm-trusted-firmware/Config.in
index c06294040e..a28a699e35 100644
--- a/boot/arm-trusted-firmware/Config.in
+++ b/boot/arm-trusted-firmware/Config.in
@@ -1,7 +1,7 @@
 config BR2_TARGET_ARM_TRUSTED_FIRMWARE
 	bool "ARM Trusted Firmware (ATF)"
 	depends on (BR2_ARM_CPU_ARMV8A || BR2_ARM_CPU_ARMV7A) && \
-		   BR2_TARGET_UBOOT
+		   (BR2_TARGET_UBOOT || BR2_TARGET_EDK2)
 	help
 	  Enable this option if you want to build the ATF for your ARM
 	  based embedded device.
@@ -115,6 +115,19 @@ config BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL32_OPTEE
 
 endchoice
 
+config BR2_TARGET_ARM_TRUSTED_FIRMWARE_EDK2_AS_BL33
+	bool "Use EDK2 as BL33"
+	depends on BR2_TARGET_EDK2
+	help
+	  This option allows to embed EDK2 as the BL33 part of
+	  the ARM Trusted Firmware. It ensures that the EDK2 package
+	  gets built before ATF, and that the appropriate BL33
+	  variable pointing to the EDK2 is passed when building ATF.
+
+	  Do not choose this option if you intend to build ATF and EDK2
+	  for the 'qemu_sbsa' platform. In this case, due to the EDK2
+	  build system, the dependency between ATF and EDK is reversed.
+
 config BR2_TARGET_ARM_TRUSTED_FIRMWARE_UBOOT_AS_BL33
 	bool "Use U-Boot as BL33"
 	depends on BR2_TARGET_UBOOT
diff --git a/boot/arm-trusted-firmware/arm-trusted-firmware.mk b/boot/arm-trusted-firmware/arm-trusted-firmware.mk
index a3553e36cf..51a5877ba1 100644
--- a/boot/arm-trusted-firmware/arm-trusted-firmware.mk
+++ b/boot/arm-trusted-firmware/arm-trusted-firmware.mk
@@ -79,6 +79,14 @@ ARM_TRUSTED_FIRMWARE_MAKE_OPTS += AARCH32_SP=optee
 endif
 endif # BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL32_OPTEE
 
+ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_EDK2_AS_BL33),y)
+ARM_TRUSTED_FIRMWARE_DEPENDENCIES += edk2
+# Since the flash device name vary between platforms, we use the variable
+# provided by the EDK2 package for this. Using this variable here is OK
+# as it will expand after all dependencies are resolved, inside _BUILD_CMDS.
+ARM_TRUSTED_FIRMWARE_MAKE_OPTS += BL33=$(BINARIES_DIR)/$(EDK2_EL2_NAME).fd
+endif
+
 ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_UBOOT_AS_BL33),y)
 ARM_TRUSTED_FIRMWARE_UBOOT_BIN = $(call qstrip,$(BR2_TARGET_ARM_TRUSTED_FIRMWARE_UBOOT_BL33_IMAGE))
 ARM_TRUSTED_FIRMWARE_MAKE_OPTS += BL33=$(BINARIES_DIR)/$(ARM_TRUSTED_FIRMWARE_UBOOT_BIN)
-- 
2.25.1

  parent reply	other threads:[~2020-12-18 20:27 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-18 20:27 [Buildroot] [PATCH v3 00/11] Introduce EDK2 firmware package Dick Olsson
2020-12-18 20:27 ` [Buildroot] [PATCH v3 01/11] boot/arm-trusted-firmware: Bump to version 2.4 Dick Olsson
2020-12-30  9:30   ` Yann E. MORIN
2020-12-18 20:27 ` [Buildroot] [PATCH v3 02/11] boot/mv-ddr-marvell: Bump to HEAD as of 20201207 Dick Olsson
2020-12-30  9:30   ` Yann E. MORIN
2021-01-09 13:32   ` Sergey Matyukevich
2021-01-10  9:37     ` D. Olsson
2021-01-10  9:47       ` Baruch Siach
2021-01-10 10:09       ` Sergey Matyukevich
2020-12-18 20:27 ` [Buildroot] [PATCH v3 03/11] package/edk2-platforms: new package Dick Olsson
2020-12-30 13:39   ` Yann E. MORIN
2020-12-18 20:27 ` [Buildroot] [PATCH v3 04/11] boot/edk2: " Dick Olsson
2020-12-30 10:51   ` Yann E. MORIN
2020-12-30 20:22     ` D. Olsson
2020-12-30 21:30       ` Yann E. MORIN
2020-12-18 20:27 ` [Buildroot] [PATCH v3 05/11] configs/aarch64_efi_defconfig: build the EDK2 firmware from source Dick Olsson
2020-12-30 12:54   ` Yann E. MORIN
2020-12-18 20:27 ` [Buildroot] [PATCH v3 06/11] configs/pc_x86_64_defconfig: " Dick Olsson
2020-12-18 20:27 ` Dick Olsson [this message]
2020-12-30 13:00   ` [Buildroot] [PATCH v3 07/11] boot/arm-trusted-firmware: add EDK2 as BL33 option Yann E. MORIN
2020-12-18 20:27 ` [Buildroot] [PATCH v3 08/11] configs/qemu_aarch64_sbsa_defconfig: new config for QEMU sbsa-ref Dick Olsson
2020-12-30 13:11   ` Yann E. MORIN
2020-12-18 20:27 ` [Buildroot] [PATCH v3 09/11] configs/qemu_aarch64_virt_efi_defconfig: new config for QEMU Virt EFI Dick Olsson
2020-12-30 13:30   ` Yann E. MORIN
2021-01-05  9:09     ` D. Olsson
2020-12-18 20:28 ` [Buildroot] [PATCH v3 10/11] configs/socionext_developerbox_defconfig: new config for Developerbox Dick Olsson
2020-12-18 20:28 ` [Buildroot] [PATCH v3 11/11] configs/solidrun_macchiatobin_efi_defconfig: EFI config for MacchiatoBin Dick Olsson
2020-12-19 18:08   ` Baruch Siach
2020-12-30 13:41 ` [Buildroot] [PATCH v3 00/11] Introduce EDK2 firmware package Yann E. MORIN

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