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Commit 17b60977 authored by Roland Dreier's avatar Roland Dreier Committed by David Woodhouse
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intel-iommu: Decode (and ignore) RHSA entries 



I recently got a system where the DMAR table included a couple of RHSA
(remapping hardware static affinity) entries.  Rather than printing a
message about an "Unknown DMAR structure," it would probably be more
useful to dump the RHSA structure (as other DMAR structures are dumped).

Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 4de75cf9

drivers/pci/dmar.c

+10 −0
Original line number Diff line number Diff line
@@ -354,6 +354,7 @@ dmar_table_print_dmar_entry(struct acpi_dmar_header *header) 
	struct acpi_dmar_hardware_unit *drhd;

	struct acpi_dmar_reserved_memory *rmrr;

	struct acpi_dmar_atsr *atsr;

	struct acpi_dmar_rhsa *rhsa;



	switch (header->type) {

	case ACPI_DMAR_TYPE_HARDWARE_UNIT:
@@ -375,6 +376,12 @@ dmar_table_print_dmar_entry(struct acpi_dmar_header *header) 
		atsr = container_of(header, struct acpi_dmar_atsr, header);

		printk(KERN_INFO PREFIX "ATSR flags: %#x\n", atsr->flags);

		break;

	case ACPI_DMAR_HARDWARE_AFFINITY:

		rhsa = container_of(header, struct acpi_dmar_rhsa, header);

		printk(KERN_INFO PREFIX "RHSA base: %#016Lx proximity domain: %#x\n",

		       (unsigned long long)rhsa->base_address,

		       rhsa->proximity_domain);

		break;

	}

}
@@ -459,6 +466,9 @@ parse_dmar_table(void) 
			ret = dmar_parse_one_atsr(entry_header);

#endif

			break;

		case ACPI_DMAR_HARDWARE_AFFINITY:

			/* We don't do anything with RHSA (yet?) */

			break;

		default:

			printk(KERN_WARNING PREFIX

				"Unknown DMAR structure type %d\n",