Signed-off-by: Gerd Hoffmann <kra...@redhat.com> --- docs/specs/pci-serial.txt | 34 ++++++++++++++++++++++++++++++++++ hw/serial-pci.c | 2 ++ 2 files changed, 36 insertions(+), 0 deletions(-) create mode 100644 docs/specs/pci-serial.txt
diff --git a/docs/specs/pci-serial.txt b/docs/specs/pci-serial.txt new file mode 100644 index 0000000..66c761f --- /dev/null +++ b/docs/specs/pci-serial.txt @@ -0,0 +1,34 @@ + +QEMU pci serial devices +======================= + +There is one single-port variant and two muliport-variants. Linux +guests out-of-the box with all cards. There is a Windows inf file +(docs/qemupciserial.inf) to setup the single-port card in Windows +guests. + + +single-port card +---------------- + +Name: pci-serial +PCI ID: 1b36:0002 + +PCI Region 0: + IO bar, 8 bytes long, with the 16550 uart mapped to it. + Interrupt is wired to pin A. + + +multiport cards +--------------- + +Name: pci-serial-2x +PCI ID: 1b36:0003 + +Name: pci-serial-4x +PCI ID: 1b36:0004 + +PCI Region 0: + IO bar, with two/four 16550 uart mapped after each other. + The first is at offset 0, second at offset 8, ... + Interrupt is wired to pin A. diff --git a/hw/serial-pci.c b/hw/serial-pci.c index badd297..95dc5c8 100644 --- a/hw/serial-pci.c +++ b/hw/serial-pci.c @@ -23,6 +23,8 @@ * THE SOFTWARE. */ +/* see docs/specs/pci-serial.txt */ + #include "serial.h" #include "pci.h" -- 1.7.1
