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intel-iommu: Decode (and ignore) RHSA entries

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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: Roland Dreier <rolandd@cisco.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Roland Dreier 2009-09-24 12:14:00 -07:00 committed by David Woodhouse
parent 4de75cf939
commit 17b6097753
1 changed files with 10 additions and 0 deletions
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10
drivers/pci/dmar.c
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@ -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",