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Diffstat (limited to 'gitlab/issues/target_riscv/host_missing/accel_missing/904.toml')
| -rw-r--r-- | gitlab/issues/target_riscv/host_missing/accel_missing/904.toml | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/gitlab/issues/target_riscv/host_missing/accel_missing/904.toml b/gitlab/issues/target_riscv/host_missing/accel_missing/904.toml deleted file mode 100644 index b9d0173cd..000000000 --- a/gitlab/issues/target_riscv/host_missing/accel_missing/904.toml +++ /dev/null @@ -1,24 +0,0 @@ -id = 904 -title = "RISC-V: Cannot set SEIP bit of mip csr register in M mode" -state = "closed" -created_at = "2022-03-12T08:49:54.479Z" -closed_at = "2022-04-22T10:54:01.743Z" -labels = ["target: riscv"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/904" -host-os = "Ubuntu" -host-arch = "x86_64" -qemu-version = "6.1.1" -guest-os = "No operating system" -guest-arch = "riscv64 imafc, riscv32 imafc" -description = """""" -reproduce = """1. run assembly instructions **in M mode**: -``` -not t0, x0 // set t0 to 0b11..11 -csrs mip, t0 // write mip with t0, mip registers are WARL(Write Any Values, Reads Legal Values) -csrr t1, mip // read value from mip to t1 -``` -2. GDB enters the command `display/z $t1` to see that the content of the t1 register is 0x466, which means that the SEIP bit of mip is not set. -3. According to page 47 of [riscv-privileged-20211203](https://github.com/riscv/riscv-isa-manual/releases/download/Priv-v1.12/riscv-privileged-20211203.pdf), `SEIP is writable in mip`. -4. According to page 81 of the same manual,`If implemented, SEIP is read-only in sip`. -5. However, the above code and results show that the SEIP bit of mip cannot be set by software **in M mode**.""" -additional = """""" |