From 87dd2c203cccdbed7accd7b455ccd47a81857f57 Mon Sep 17 00:00:00 2001 From: Sunil V L Date: Thu, 16 May 2024 11:21:22 +0530 Subject: [PATCH] acpi-id: Reserve ACPI ID for IOMMU RISC-V IOMMU can be implemented as a PCI device or a platform device. When it is a platform device, it can have dependency on PLIC/ACPI due to wired interrupts it may need. So, reserve the ACPI ID to support this use case. Signed-off-by: Sunil V L --- acpi-id.adoc | 1 + 1 file changed, 1 insertion(+) diff --git a/acpi-id.adoc b/acpi-id.adoc index 5cda486..5078c25 100644 --- a/acpi-id.adoc +++ b/acpi-id.adoc @@ -28,5 +28,6 @@ ACPI ID for any new device. | `RSCV0001` | RISC-V Platform-Level Interrupt Controller (PLIC) | `RSCV0002` | RISC-V Advanced Platform-Level Interrupt Controller (APLIC) | `RSCV0003` | NS16650 UART compatible with an SPCR definition using `Interface Type` 0x12 +| `RSCV0004` | RISC-V IOMMU implemented as a platform device 2+| _Also see <>._ |===