diff options
Diffstat (limited to 'results/classifier/gemma3:12b/peripherals/1815721')
| -rw-r--r-- | results/classifier/gemma3:12b/peripherals/1815721 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/peripherals/1815721 b/results/classifier/gemma3:12b/peripherals/1815721 new file mode 100644 index 00000000..fb90cd58 --- /dev/null +++ b/results/classifier/gemma3:12b/peripherals/1815721 @@ -0,0 +1,15 @@ + +RISC-V PLIC enable interrupt for multicore + +Hello all, + +There is a bug in Qemu related to the enabling of external interrupts for multicores (Virt machine). + +After correcting Qemu as described in #1815078 (https://bugs.launchpad.net/qemu/+bug/1815078), when we try to enable interrupts for core 1 at address 0x0C00_2080 we don't seem to be able to trigger an external interrupt (e.g. UART0). + +This works perfectly for core 0, but fore core 1 it does not work at all. I assume that given bug #1815078 does not enable any external interrupt then this feature has not been tested. I tried to look at the qemu source code but with no luck so far. + +I guess the problem is related to function parse_hart_config (in sfive_plic.c) that initializes incorrectly the plic->addr_config[addrid].hartid, which is later on read in sifive_plic_update. But this is a guess. + +Best regards, +Pharos team \ No newline at end of file |