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Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/2186.toml')
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diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/2186.toml b/gitlab/issues/target_missing/host_missing/accel_missing/2186.toml deleted file mode 100644 index 843dbf12..00000000 --- a/gitlab/issues/target_missing/host_missing/accel_missing/2186.toml +++ /dev/null @@ -1,44 +0,0 @@ -id = 2186 -title = "riscv virt pflash0 writes not supported" -state = "closed" -created_at = "2024-02-22T14:53:03.207Z" -closed_at = "2024-02-26T10:17:39.981Z" -labels = [] -url = "https://gitlab.com/qemu-project/qemu/-/issues/2186" -host-os = "Artix Linux" -host-arch = "x86" -qemu-version = "latest master (commit hash: 760b4dcddd)" -guest-os = "- OS/kernel version:" -guest-arch = "## Description of problem" -description = """I am using GDB to debug some Firmware related stuff. At some point in the execution my BIOS/Firmware writes into some global variable (at 0x2000525C) inside the .bss section which is linked to be inside the memory mapped pflash0. But when I step forward with GDB to the exact location where the store instruction (sw) is executed, QEMU prints the following: -``` -pflash_write: Unimplemented flash cmd sequence (offset 000000000000525c, wcycle 0x0 cmd 0x0 value 0x1) -``` -According to the top of `hw/block/pflash_cfi01.c` Flash writes are supported. I was also under the impression that the flash is memory mapped, but maybe that is not true? I am probably missing something here so it would be nice if someone could point me in the right direction. I would also gladly contribute if there is something missing in the riscv virt target. - -I made a simple program to more easily reproduce this: -``` -.section .text -.global _start -_start: -\tlui a5, 0x20000 -\tli a4, 5 -\tsw a4, 24(a5) - -``` -results in QEMU error msg: -``` -pflash_write: Unimplemented flash cmd sequence (offset 0000000000000018, wcycle 0x0 cmd 0x0 value 0x5) -```""" -reproduce = """1. compile above assembly program like this: -``` -riscv64-unknown-elf-gcc -nostdlib -O0 bios.S -riscv64-unknown-elf-objcopy -O binary a.out -truncate -s 33554432 a.out -``` -2. start QEMU like this: -``` -qemu-system-riscv64 -M virt -bios none -drive if=pflash,format=raw,unit=0,file=a.out -nographic -d unimp -``` -3. notice the error message printed by QEMU""" -additional = "n/a" |