bf037f3961
The QEMU sbsa-ref machine has a GICv3 ITS at 0x44081000 that handles MSI/MSI-X translation for PCI devices. Without describing the ITS in ACPI tables, Linux cannot set up MSI interrupts, causing warnings like: WARNING: CPU: 1 PID: 1 at drivers/pci/msi/msi.h:121 pci_msi_setup_msi_irqs+0x40/0x58 xhci_hcd 0000:00:04.0: xHCI Host Controller Add GIC ITS base address to the address map and implement platform_get_gic_its() so the common MADT generation code emits a GIC ITS entry. Select ACPI_IORT and implement acpi_soc_fill_iort() to generate an IORT table with an ITS Group node and a Root Complex node that maps all PCI RIDs 1:1 to ITS device IDs. Tested with Fedora 41 and a qemu-xhci USB controller. Change-Id: I9366968aac855dae808f6f0c73f1d3ec644bbeff Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/91668 Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> |
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| .. | ||
| qemu-aarch64 | ||
| qemu-armv7 | ||
| qemu-i440fx | ||
| qemu-power8 | ||
| qemu-power9 | ||
| qemu-q35 | ||
| qemu-riscv | ||
| qemu-sbsa | ||
| spike-riscv | ||
| Kconfig | ||
| Kconfig.name | ||