u-boot.git/drivers/xen, branch v2020.10

xen: Code style conformity

2020-08-24T18:11:31Z

Cleaning up the following: ERROR: do not use assignment in if condition #281: FILE: drivers/xen/pvblock.c:260: + if ((err = xenbus_switch_state(XBT_NIL, nodename, CHECK:COMPARISON_TO_NULL: Comparison to NULL could be written "err" #52: FILE: drivers/xen/pvblock.c:298: + if (err != NULL) { ERROR: do not use assignment in if condition #176: FILE: drivers/xen/gnttab.c:103: + if ((flags = nflags) & (GTF_reading | GTF_writing)) { WARNING: Missing or malformed SPDX-License-Identifier tag in line 1 #329: FILE: include/xen/gnttab.h:1: +/* WARNING: Misplaced SPDX-License-Identifier tag - use line 1 instead #330: FILE: include/xen/gnttab.h:2: + * SPDX-License-Identifier: GPL-2.0 ERROR: do not use assignment in if condition #630: FILE: lib/sscanf.c:558: + if ((n = inr) < width) { Signed-off-by: Anastasiia Lukianenko Reviewed-by: Simon Glass

board: xen: De-initialize before jumping to Linux

2020-08-14T19:18:30Z

Free resources used by Xen board before jumping to Linux kernel. Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Anastasiia Lukianenko Reviewed-by: Simon Glass

xen: pvblock: Print found devices indices

2020-08-14T19:18:30Z

Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Anastasiia Lukianenko Reviewed-by: Simon Glass

xen: pvblock: Implement front-back protocol and do IO

2020-08-14T19:18:30Z

Implement Xen para-virtual frontend to backend communication and actually read/write disk data. This is based on mini-os implementation of the para-virtual block frontend driver. Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Anastasiia Lukianenko

xen: pvblock: Read XenStore configuration and initialize

2020-08-14T19:18:30Z

Read essential virtual block device configuration data from XenStore, initialize front ring and event channel. Update block device description with actual block size. Use code for XenStore from mini-os. Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Anastasiia Lukianenko

xen: pvblock: Enumerate virtual block devices

2020-08-14T19:18:30Z

Enumerate Xen virtual block devices found in XenStore and instantiate pvblock devices. Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Anastasiia Lukianenko Reviewed-by: Simon Glass

xen: pvblock: Add initial support for para-virtualized block driver

2020-08-14T19:18:30Z

Add initial infrastructure for Xen para-virtualized block device. This includes compile-time configuration and the skeleton for the future driver implementation. Add new class UCLASS_PVBLOCK which is going to be a parent for virtual block devices. Add new interface type IF_TYPE_PVBLOCK. Implement basic driver setup by reading XenStore configuration. Signed-off-by: Andrii Anisov Signed-off-by: Anastasiia Lukianenko Signed-off-by: Oleksandr Andrushchenko

xen: Port Xen grant table driver from mini-os

2020-08-14T19:18:30Z

Make required updates to run on u-boot. Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Anastasiia Lukianenko

xen: Port Xen bus driver from mini-os

2020-08-14T19:18:30Z

Make required updates to run on u-boot and strip test code. Signed-off-by: Anastasiia Lukianenko Signed-off-by: Oleksandr Andrushchenko

serial: serial_xen: Add Xen PV serial driver

2020-08-14T19:18:30Z

Add support for Xen para-virtualized serial driver. This driver fully supports serial console for the virtual machine. Please note that as the driver is initialized late, so no banner nor memory size is visible. Signed-off-by: Peng Fan Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Anastasiia Lukianenko Reviewed-by: Simon Glass