Patch series seems sane to me.
Reviewed-by: Graeme Gregory <graeme@xora.org.uk>
(I seem to be moving further and further from ARM development and even
further from SBSA machine development so Ill probably remove myself
as a reviewer for this machine)
On Wed, Jul 19, 2023 at 02:08:39PM +0200, Marcin Juszkiewicz wrote:
> SBSA Reference Platform can have GIC ITS present. And when it has then
> we can have complex PCI Express setup (and some other things).
>
> First patch adds support for GIC ITS. Address is read from TF-A via SMC
> call. IORT is generated, MADT has ITS information. Linux boots and sees
> GIC ITS as expected. SMMU information is also provided in IORT and used.
>
> Second patch introduces PcdSmmuBase variable to avoid using magic number
> in IORT generation.
>
> Third patch takes care of system where GIC ITS is not present (like QEMU
> 8.0). If GIC ITS address is not set then there is no mention of it in
> MADT and there is no IORT, Linux boots.
>
> Changes since v2:
> - no ITS == no IORT
>
> Changes since v1:
> - IORT is generated in C
> - no ITS == no ITS node in IORT
> - introduced PcdSmmuBase
>
> Marcin Juszkiewicz (2):
> Platform/QemuSbsa: add dynamic PcdSmmuBase
> Platform/SbsaQemu: handle systems without GIC ITS
>
> Shashi Mallela (1):
> Platform/SbsaQemu: add GIC ITS support
>
> Silicon/Qemu/SbsaQemu/SbsaQemu.dec | 4 +
> Platform/Qemu/SbsaQemu/SbsaQemu.dsc | 4 +
> .../Qemu/SbsaQemu/AcpiTables/AcpiTables.inf | 1 +
> .../SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf | 2 +
> .../SbsaQemuPlatformDxe.inf | 1 +
> .../Include/IndustryStandard/SbsaQemuAcpi.h | 11 +
> .../Include/IndustryStandard/SbsaQemuSmc.h | 1 +
> .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c | 208 +++++++++++++++++-
> .../SbsaQemuPlatformDxe/SbsaQemuPlatformDxe.c | 10 +
> 9 files changed, 241 insertions(+), 1 deletion(-)
>
> --
> 2.41.0
>
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