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| author | Paolo Bonzini <pbonzini@redhat.com> | 2018-06-06 15:09:54 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2018-06-08 13:36:31 -0400 |
| commit | d02cea6437b420150915b03aef3691010c7d40df (patch) | |
| tree | 5bc6fe6ccbb8d3600c04ece6864ee56ff1bb358a /hw/ide/atapi.c | |
| parent | 882941a5680db4d3e247a089126be23181ae13fd (diff) | |
| download | focaccia-qemu-d02cea6437b420150915b03aef3691010c7d40df.tar.gz focaccia-qemu-d02cea6437b420150915b03aef3691010c7d40df.zip | |
atapi: call ide_set_irq before ide_transfer_start
The ATAPI_INT_REASON_IO interrupt is raised when I/O starts, but in the AHCI case ide_set_irq was actually called at the end of a mutual recursion. Move it early, with the side effect that ide_transfer_start becomes a tail call in ide_atapi_cmd_reply_end. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180606190955.20845-7-jsnow@redhat.com Signed-off-by: John Snow <jsnow@redhat.com>
Diffstat (limited to 'hw/ide/atapi.c')
| -rw-r--r-- | hw/ide/atapi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c index c0509c8bf5..7168ff55a7 100644 --- a/hw/ide/atapi.c +++ b/hw/ide/atapi.c @@ -287,6 +287,7 @@ void ide_atapi_cmd_reply_end(IDEState *s) } else { /* a new transfer is needed */ s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO; + ide_set_irq(s->bus); byte_count_limit = atapi_byte_count_limit(s); trace_ide_atapi_cmd_reply_end_bcl(s, byte_count_limit); size = s->packet_transfer_size; @@ -304,13 +305,12 @@ void ide_atapi_cmd_reply_end(IDEState *s) if (size > (s->cd_sector_size - s->io_buffer_index)) size = (s->cd_sector_size - s->io_buffer_index); } + trace_ide_atapi_cmd_reply_end_new(s, s->status); s->packet_transfer_size -= size; s->elementary_transfer_size -= size; s->io_buffer_index += size; ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size, size, ide_atapi_cmd_reply_end); - ide_set_irq(s->bus); - trace_ide_atapi_cmd_reply_end_new(s, s->status); } } } |