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([2001:8a0:e622:f700:d17a:a6e4:6bf1:e6ce]) by smtp.gmail.com with ESMTPSA id m28-20020a056000181c00b00341d186a2dbsm1329898wrh.14.2024.03.28.03.06.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Mar 2024 03:06:50 -0700 (PDT) From: Vitor Soares To: Tom Rini Cc: Vitor Soares , u-boot@lists.denx.de, Patrice Chotard , Alexander Graf Subject: [PATCH v1] arm: mach-k3: common: EFI loader map memory below ram top Date: Thu, 28 Mar 2024 10:05:48 +0000 Message-Id: <20240328100548.321634-1-ivitro@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Mailman-Approved-At: Thu, 28 Mar 2024 12:43:31 +0100 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean From: Vitor Soares During the boot, the EFI loader maps the memory from ram_top to ram_end as EFI_BOOT_SERVICES_DATA. When LMB does boot_fdt_add_mem_rsv_regions() to OPTEE, TFA, R5, and M4F DMA/memory "no-map" for the kernel it produces the following error message: ERROR: reserving fdt memory region failed (addr=9cb00000 size=100000 flags=4) ERROR: reserving fdt memory region failed (addr=9cc00000 size=e00000 flags=4) ERROR: reserving fdt memory region failed (addr=9da00000 size=100000 flags=4) ERROR: reserving fdt memory region failed (addr=9db00000 size=c00000 flags=4) ERROR: reserving fdt memory region failed (addr=9e780000 size=80000 flags=4) ERROR: reserving fdt memory region failed (addr=9e800000 size=1800000 flags=4) To avoid this, don't flag with EFI_BOOT_SERVICES_DATA the memory from ram_top to ram_end by the EFI loader. Signed-off-by: Vitor Soares --- Similar fix for the same issue can be found at https://lore.kernel.org/all/20240308101230.2595220-1-patrice.chotard@foss.st.com/ arch/arm/mach-k3/common.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c index b54f2ddc47..80e89b2a16 100644 --- a/arch/arm/mach-k3/common.c +++ b/arch/arm/mach-k3/common.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -607,3 +608,14 @@ void setup_qos(void) writel(qos_data[i].val, (uintptr_t)qos_data[i].reg); } #endif + +void efi_add_known_memory(void) +{ + if (IS_ENABLED(CONFIG_EFI_LOADER)) + /* + * Memory over ram_top can be used by various firmware + * Declare to EFI only memory area below ram_top + */ + efi_add_memory_map(gd->ram_base, gd->ram_top - gd->ram_base, + EFI_CONVENTIONAL_MEMORY); +}