[PATCH 03/13] arm-bsp/trusted-firmware-m: corstone-1000: Increase PS_MAX_ASSET_SIZE and CRYPTO_IOVEC_BUFFER_SIZE for EFI variable support

Increase `PS_MAX_ASSET_SIZE` and `CRYPTO_IOVEC_BUFFER_SIZE` for the
Corstone-1000 platform to support large EFI variable storage required
by the UEFI firmware update flow and to pass Arm Architecture Compliance
Suite (ACS) tests.

Signed-off-by: Harsimran Singh Tungal <[email protected]>
---
 ...m-Corstone1000-Increase-buffer-sizes.patch | 40 +++++++++++++++++++
 .../trusted-firmware-m-corstone1000.inc       |  1 +
 2 files changed, 41 insertions(+)
 create mode 100644 meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0028-Platform-Corstone1000-Increase-buffer-sizes.patch

diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0028-Platform-Corstone1000-Increase-buffer-sizes.patch b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0028-Platform-Corstone1000-Increase-buffer-sizes.patch
new file mode 100644
index 00000000..2aaa4fcd
--- /dev/null
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0028-Platform-Corstone1000-Increase-buffer-sizes.patch
@@ -0,0 +1,40 @@
+From e3d94988f14b3004606c247b39bda5ade119545f Mon Sep 17 00:00:00 2001
+From: Harsimran Singh Tungal <[email protected]>
+Date: Wed, 12 Mar 2025 13:10:47 +0000
+Subject: [PATCH 2/2] Platform: Corstone1000: Increase buffer sizes
+
+Increase PSA_MAX_ASSET_SIZE and CRYPTO_IOVEC_BUFFER_SIZE
+to accommodate large size EFI variables set by new U-Boot version.
+
+This change is required to pass ACS tests related to Set/Get
+EFI variables. These ACS tests started failing after introducing new
+version of U-Boot, Trusted-Services and Trusted-Firmware-M while
+implementing PSA FWU support.
+
+Upstream-Status: Submitted [https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/39517/1]
+Signed-off-by: Harsimran Singh Tungal <[email protected]>
+---
+ platform/ext/target/arm/corstone1000/config_tfm_target.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/platform/ext/target/arm/corstone1000/config_tfm_target.h b/platform/ext/target/arm/corstone1000/config_tfm_target.h
+index 0b410dfd4..a65305bd4 100644
+--- a/platform/ext/target/arm/corstone1000/config_tfm_target.h
++++ b/platform/ext/target/arm/corstone1000/config_tfm_target.h
+@@ -24,11 +24,11 @@
+ #define ITS_MAX_ASSET_SIZE   2048
+ 
+ /* The maximum asset size to be stored in the Protected Storage */
+-#define PS_MAX_ASSET_SIZE   2592
++#define PS_MAX_ASSET_SIZE   3500
+ 
+ /* This is needed to be able to process the EFI variables during PS writes. */
+ #define CRYPTO_ENGINE_BUF_SIZE 0x5000
+ 
+ /* This is also has to be increased to fit the EFI variables into the iovecs. */
+-#define CRYPTO_IOVEC_BUFFER_SIZE    6000
++#define CRYPTO_IOVEC_BUFFER_SIZE    7200
+ #endif /* __CONFIG_TFM_TARGET_H__ */
+-- 
+2.25.1
+
diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc
index 87302069..562abb7c 100644
--- a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc
@@ -46,6 +46,7 @@ SRC_URI:append:corstone1000 = " \
     file://0025-FWU-Make-platform-specific-TFM_FWU_BOOTLOADER_LIB-se.patch \
     file://0026-Platform-CS1000-Enable-FWU-partition.patch \
     file://0027-Platform-Corstone1000-Implement-Bootloader-Abstracti.patch \
+    file://0028-Platform-Corstone1000-Increase-buffer-sizes.patch \
     "
 
 FILESEXTRAPATHS:prepend:corstone1000-mps3 := "${THISDIR}/files/corstone1000/psa-adac:"