Serial Port Xenserver

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◆Multiple Serial Ports

To install serial ports and COM ports using these system-supplied components, do the following: Provide an INF file that specifies the Ports device setup class and the Serial function driver as the service for the port. To configure a serial port as COM port, comply with the requirements that are defined in Configuration of COM Ports. Serial interface (from Xen server /dev/ttyS0 to guest Windows COM1) passthrough. I wish to accomplish two things in guest Windows servers related to Serial port. When installing, Windows doesn't recognize this and presents the 'Select drivers to install box'. PortServer TS serial servers offer RS-232 serial port expansion, making it easy to connect any serial device to your network. Available in 1, 2, or 4-port models, these serial servers combine the inherent benefits of data networking with proven asynchronous connectivity.

[Xen-changelog] [xen master] libxl: Allow multiple serial ports onHVM domain creation

Once the XenServer installation image is properly copied to the USB drive, it is ready to be installed on the Vault. Verify that the Vault is powered down. Verify that the VGA monitor or serial console is connected. Verify that an ethernet cable is plugged into the “WAN” port and is connected to a DHCP enabled switch. 00:05.0 Serial controller: MosChip Semiconductor Technology Ltd. PCI 9835 Multi-I/O Controller (rev 01) (prog-if 02 16550) Subsystem: LSI Logic / Symbios Logic 2S (16C550 UART) Physical Slot: 5 Flags: medium devsel, IRQ 36 I/O ports at c240 size=8 I/O ports at c248 size=8 I/O ports at c250 size=8 I/O ports at c258 size=8 I/O ports at c260 size=8 I/O ports at c230 size=16 Kernel.

http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00102.html
This patch allows an HVM domain to be created with multiple serial ports.

[Xen-changelog] [xen master] xl: Accept a list for serial in configfile

Buy Serial Port

http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00103.html
Allow the 'serial' key to accept a list of serial ports, and pass them in using the new serial_list domain build element.

[Xen-changelog] [xen master] xl.cfg: add 'cmdline' in config file
http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00105.htmlSerial
Currently in xl.cfg, use 'root' and 'extra' to generate the command line.

◆Other
[Xen-changelog] [xen master] xen: pass kernel initrd to qemu
http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00104.html

Serial Port Xenserver 2

Direct kernel boot allows booting directly from a kernel and initrd
stored in the host physical machine OS, allowing command line arguments
to be passed directly. PV guest direct kernel boot is supported. HVM
guest direct kernel boot is supported with limitation (it's supported
when using qemu-xen and default BIOS 'seabios'; not supported in case of
stubdom-dm and old rombios.)

[Xen-changelog] [xen master] x86/hvm: treat non-instruction fetchnested page faults also as read violations
http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00110.html
As pointed out by Jan Beulich in
http://lists.xen.org/archives/html/xen-devel/2014-08/msg01269.html:
'Read-modify-write instructions absolutely need to be treated as read
accesses, yet hardware doesn't guarantee to tell us so (they may
surface as just write accesses).' This patch addresses the issue in
both the VMX and the SVM side.
VMX: Treat all write data access violations also as read violations (in
addition to those that were already reported as read violations).
SVM: Refine the meaning of read data access violations to distinguish
between read/write and instruction fetch access violations.
With this patch both VMX and SVM specific nested page fault handling code
reports violations the same way, thus abstracting the hardware specific
behaviour from the layers above.

[Xen-changelog] [xen master] update pvSCSI protocol description
http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00113.html
Update the protocol description of the pvSCSI framework used to pass through
SCSI devices to a guest (pv or hvm).
The main changes are:
- added comments
- add support for larger SG-lists by putting them in an own granted page
- deprecate VSCSIIF_ACT_SCSI_SG_PRESET action with related structures
- add ref_rqid for action VSCSIIF_ACT_SCSI_ABORT to be able to specify the
request to abort
- deprecate timeout_per_command as this really should be handled by the
backend in case of default settings or by the guest domain by aborting a
long running command
This update is related to the rework of the pvSCSI backend and frontend drivers
in the Linux kernel. This interface version is included in that rework, too.

Serial Port Xenserver Code

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For most devices, the Ports device setup class and the Serial function driver provide the functionality required to operate serial ports and COM ports. To install serial ports and COM ports using these system-supplied components, do the following:

Serial Port Xenserver Free

  • Provide an INF file that specifies the Ports device setup class and the Serial function driver as the service for the port.

  • To configure a serial port as COM port, comply with the requirements that are defined in Configuration of COM Ports.

For more information about installing serial ports and COM ports using the Ports device setup class and the Serial function driver, see the following topics:

Serial Port 25 Pin

If you do a custom installation of a COM port, you must comply with the COM port requirements that are defined in Configuration of COM Ports.