[edk2-devel] [PATCH edk2-platforms v3 0/3] Platform/QemuSbsa: add GIC ITS

[Ard Biesheuvel]

On Wed, 19 Jul 2023 at 14:09, Marcin Juszkiewicz
<marcin.juszkiewicz at linaro.org> 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
>

Anyone care to review this please?

>  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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