diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2012-10-17 09:54:23 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-10-22 13:26:42 -0500 |
| commit | 90734e02bd2fb137346d4184cec6c5d26e68f29b (patch) | |
| tree | 2e60c66674f3b620532e30f28c6aa92aec3ff69c /docs | |
| parent | d66bbea4e0d3faec69e8aa73789a2d1dc3b8312f (diff) | |
serial: add pci-serial documentation
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/specs/pci-serial.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/docs/specs/pci-serial.txt b/docs/specs/pci-serial.txt new file mode 100644 index 0000000000..66c761f2b4 --- /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. |