Commit Graph

3 Commits

Author SHA1 Message Date
Gerd Hoffmann 4e5a804222 OvmfPkg/VirtioSerialDxe: use TPL_NOTIFY
Apparently TPL_CALLBACK is too low, code runs into an ASSERT
complaining the new TPL is lower than the old TPL.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2023-06-01 09:00:00 +00:00
Michael D Kinney c0bce66068 OvmfPkg/VirtIoSerialDxe: Update for VS2015x86 compatibility
Move initialization of local variable structure from declaration
to statements to fix VS2015x86 build break.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Ard Biesheuvel <ardb+tianocore@kernel.org>
2023-05-29 06:40:12 +00:00
Gerd Hoffmann 4d1452c599 OvmfPkg/VirtioSerialDxe: add driver
Add a driver for the virtio serial device.

The virtio serial device also known as virtio console device because
initially it had only support for a single tty, intended to be used as
console.  Support for multiple streams and named data ports has been
added later on.

The driver supports tty ports only, they are registered as SerialIo
UART in the system.

Named ports are detected and logged, but not exposed as devices.  They
are usually used by guest agents to communicate with the host.  It's not
clear whenever it makes sense for the firmware to run such agents and if
so which efi protocol could be to expose the ports.  So leaving that for
another day.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2023-05-04 14:26:58 +00:00