I have tested it both on Qemu and Ventana's internal simulator. On Tue, Nov 29, 2022 at 12:06 PM Bin Meng <bmeng...@gmail.com> wrote:
> Hi Kautuk, > > On Tue, Nov 29, 2022 at 2:29 PM Kautuk Consul <kcon...@ventanamicro.com> > wrote: > > > > Hi, > > > > Can someone pick this patchset up ? > > > > It has been reviewed and there has been no comment on this in recent > days. > > > > Thanks. > > > > On Fri, Sep 23, 2022 at 12:33 PM Kautuk Consul <kcon...@ventanamicro.com> > wrote: > >> > >> Semihosting is a mechanism that enables code running on > >> a target to communicate and use the Input/Output > >> facilities on a host computer that is running a debugger. > >> This patchset adds support for semihosting in u-boot > >> for RISCV64 targets. > >> > >> CHANGES since v4: > >> - Check arch dependencies for SEMIHOSTING as well as > SPL_SEMIHOSTING > >> config options as per Sean's comment. > >> - arch/riscv/lib/interrupts.c: Check for post and pre instructions > >> of the ebreak statement whether they are as per the RISCV > >> semihosting specification. Only then do a disable_semihosting > >> and epc += 4 and return. > >> > >> Compilation and test commands for SPL and S-mode configurations > >> ================================================================= > >> > >> U-Boot S-mode on QEMU virt > >> ---------------------------- > >> // Compilation of S-mode u-boot > >> ARCH=riscv > >> CROSS_COMPILE=riscv64-unknown-linux-gnu- > >> make qemu-riscv64_smode_defconfig > >> make > >> // Run riscv 64-bit u-boot with opensbi on qemu > >> qemu-system-riscv64 -M virt -m 256M -display none -serial stdio -bios\ > >> opensbi/build/platform/generic/firmware/fw_jump.bin -kernel\ > >> u-boot/u-boot.bin > >> > >> U-Boot SPL on QEMU virt > >> ------------------------ > >> // Compilation of u-boot-spl > >> ARCH=riscv > >> CROSS_COMPILE=riscv64-unknown-linux-gnu- > >> make qemu-riscv64_spl_defconfig > >> make OPENSBI=opensbi/build/platform/generic/firmware/fw_dynamic.bin > >> // Run 64-bit u-boot-spl in qemu > >> qemu-system-riscv64 -M virt -m 256M -display none -serial stdio -bios\ > >> u-boot/spl/u-boot-spl.bin -device\ > >> loader,file=u-boot/u-boot.itb,addr=0x80200000 > >> > > Do you have instructions on how to actually test semihosting? Does it > require a JTAG debugger? But I see you are using QEMU? > > Regards, > Bin >
