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[v2,0/2] Xen: ARM: Improved NXP iMX8 platform support

Message ID 20240214160644.3418228-1-john.ernberg@actia.se (mailing list archive)
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Series Xen: ARM: Improved NXP iMX8 platform support | expand

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John Ernberg Feb. 14, 2024, 4:06 p.m. UTC 
The iMX lpuart driver added at 44e17aa60d47 ("xen/arm: Add i.MX lpuart driver")
is not enough to boot a Linux based dom0 when certain drivers, such as the
watchdog driver, are enabled.

We're also fixing compatibles in imx-lpuart to allow Xen to use the UART
on the QXP variant as well.

NOTE:
There's still an open point regarding the watchdog from v1, but I wanted
to post this series to show the filtering changes mostly because they also
clarify what exists and what we can definitely get away with blocking /
ignoring out of all the SMC SIP calls.

v2: (See each path for complete changelog)
 - Added SIP call filtering (Julien Grall)
 - Replace lpuart compatible instead (Julien Grall)

v1: https://lore.kernel.org/xen-devel/20240131114952.305805-1-john.ernberg@actia.se

John Ernberg (2):
  xen/arm: Add imx8q{m,x} platform glue
  xen/drivers: imx-lpuart: Replace iMX8QM compatible with iMX8QXP

 xen/arch/arm/platforms/Makefile |   1 +
 xen/arch/arm/platforms/imx8qm.c | 143 ++++++++++++++++++++++++++++++++
 xen/drivers/char/imx-lpuart.c   |   2 +-
 3 files changed, 145 insertions(+), 1 deletion(-)
 create mode 100644 xen/arch/arm/platforms/imx8qm.c