diff options
Diffstat (limited to 'gitlab/issues_text/target_riscv/host_missing/accel_TCG/2259')
| -rw-r--r-- | gitlab/issues_text/target_riscv/host_missing/accel_TCG/2259 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_riscv/host_missing/accel_TCG/2259 b/gitlab/issues_text/target_riscv/host_missing/accel_TCG/2259 new file mode 100644 index 000000000..fbc5dc5c0 --- /dev/null +++ b/gitlab/issues_text/target_riscv/host_missing/accel_TCG/2259 @@ -0,0 +1,14 @@ +The cause code of a trap changes when qemu is nested in another qemu +Description of problem: +I am studying the feasibility of doing some practical work on RISCV plates. Since I don't have these boards yet, I'm emulating it with qemu. The practice in turn consists of launching with qemu a very small operating system with two tasks that make a series of system calls. + +When I run this practice on my host it works correctly, but when I run it on an Ubuntu emulated in riscv with qemu, the cause code for the trap changes (the first bit of the code). + +The demo can be found in this repository: https://github.com/Sft570/qemu-bug-report +Steps to reproduce: +1. Clone the repository on the host and run the demo with "make qemu" +2. Emulate with qemu ubuntu in riscv, clone the repository and run the demo with "make qemu". + +The error displayed shows the change of the cause code bit. You can analyze its behavior in the trap.c file in the src folder. +Additional information: + |