Re: [PATCH] iommu/vt-d:Add support for detecting ACPI device in RMRR

Hi Felix, On 8/18/20 10:44 AM, FelixCuioc wrote: Some ACPI devices need to issue dma requests to access the reserved memory area.BIOS uses the device scope type ACPI_NAMESPACE_DEVICE in RMRR to report these ACPI devices. This patch add support for detecting ACPI devices in RMRR. If you are

[PATCH] iommu/vt-d:Add support for detecting ACPI device in RMRR

Some ACPI devices need to issue dma requests to access the reserved memory area.BIOS uses the device scope type ACPI_NAMESPACE_DEVICE in RMRR to report these ACPI devices. This patch add support for detecting ACPI devices in RMRR. Signed-off-by: FelixCuioc --- drivers/iommu/intel/dmar.c | 74