haraldwolff/qemu-patch-raspberry4
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scsi/esp: do not raise an interrupt when reading the FIFO register

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This fixes SCSI adapter self-tests done in MIPS Jazz emulation,
broken since ff589551c8.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <1479508397-8443-1-git-send-email-hpoussin@reactos.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Hervé Poussineau 2016-11-18 23:33:17 +01:00 committed by Paolo Bonzini
parent 169407e1f7
commit 1d895feb3b
1 changed files with 0 additions and 2 deletions
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2
hw/scsi/esp.c
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@ -406,11 +406,9 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr)
/* Data out. */
qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n");
s->rregs[ESP_FIFO] = 0;
esp_raise_irq(s);
} else if (s->ti_rptr < s->ti_wptr) {
s->ti_size--;
s->rregs[ESP_FIFO] = s->ti_buf[s->ti_rptr++];
esp_raise_irq(s);
}
if (s->ti_rptr == s->ti_wptr) {
s->ti_rptr = 0;