From: Bin Meng bmeng.cn@gmail.com Sent: Monday, October 17, 2022 12:42 AM To: Rick Jian-Zhi Chen(陳建志) rick@andestech.com; Leo Yu-Chi Liang(梁育齊) ycliang@andestech.com; u-boot@lists.denx.de Cc: falcon@tinylab.org; Yangjie Zhang pyjmstr@gmail.com Subject: [PATCH] riscv: qemu: spl: Fix booting Linux kernel with OpenSBI 1.0+

Since OpenSBI commit bf3ef53bb7f5 ("firmware: Enable FW_PIC by default"), OpenSBI runs directly at the load address without any code movement. This causes the SPL version of QEMU 'virt' U-Boot does not boot Linux kernel anymore. In that case, OpenSBI is loaded and runs at 0x81000000, and it creates a 512KiB PMP window from that address. When booting the Linux kernel, moving kernel to its linking address 0x80200000 overlaps the PMP window, and a PMP access failure is raised.

Update SPL_OPENSBI_LOAD_ADDR to load OpenSBI to a safe address.

Reported-by: Yangjie Zhang pyjmstr@gmail.com Signed-off-by: Bin Meng bmeng.cn@gmail.com Tested-by: Yangjie Zhang pyjmstr@gmail.com

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board/emulation/qemu-riscv/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Rick Chen rick@andestech.com