diff options
| -rw-r--r-- | hw/scsi/esp.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 000e45a..18d4d56 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -481,7 +481,6 @@ static void esp_dma_done(ESPState *s) { s->rregs[ESP_RSTAT] |= STAT_TC; s->rregs[ESP_RINTR] |= INTR_BS; - s->rregs[ESP_RSEQ] = 0; s->rregs[ESP_RFLAGS] = 0; esp_set_tc(s, 0); esp_raise_irq(s); @@ -917,7 +916,15 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) val = s->rregs[ESP_RINTR]; s->rregs[ESP_RINTR] = 0; s->rregs[ESP_RSTAT] &= ~STAT_TC; - s->rregs[ESP_RSEQ] = SEQ_0; + /* + * According to the datasheet ESP_RSEQ should be cleared, but as the + * emulation currently defers information transfers to the next TI + * command leave it for now so that pedantic guests such as the old + * Linux 2.6 driver see the correct flags before the next SCSI phase + * transition. + * + * s->rregs[ESP_RSEQ] = SEQ_0; + */ esp_lower_irq(s); break; case ESP_TCHI: |