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Diffstat (limited to 'results/classifier/deepseek-2/output/hypervisor/1815078')
| -rw-r--r-- | results/classifier/deepseek-2/output/hypervisor/1815078 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/output/hypervisor/1815078 b/results/classifier/deepseek-2/output/hypervisor/1815078 new file mode 100644 index 00000000..039f9d78 --- /dev/null +++ b/results/classifier/deepseek-2/output/hypervisor/1815078 @@ -0,0 +1,22 @@ + +Qemu 3.1.0 risc-v mie.MEIE + +Hello all, + +There is a bug in qemu for Risc-v, related to the mie register: when we try to set the MEIE bit (11) nothing is done, even when we are running at machine mode. + +Li a0 , 1 << 11 +Csrs mie , a0 + +And when we read mie it is as though nothing was done. + +Going through the qemu source code I was able to correct it: on file op_helper.c, line 94, the variable all_ints should be initialized with: + +uint64_t all_ints = delegable_ints | MIP_MSIP | MIP_MTIP | MIP_MEIP; + +That is, the MIP_MEIP was missing. + +I've successfully triggered uart interrupts with this patch (virt machine). + +All the best, +Pharos team \ No newline at end of file |