Han, Weidong
2010-Jul-16 08:09 UTC
[Xen-devel] [PATCH] ACPI: add support for x2APIC ACPI extensions
(Most code is back ported from Linux Kernel.) All logical processors with APIC ID values of 255 and greater will have their APIC reported through Processor X2APIC structure (type-9 entry type) and all logical processors with APIC ID less than 255 will have their APIC reported through legacy Processor Local APIC (type-0 entry type) only. This is the same case even for NMI structure reporting. The Processor X2APIC Affinity structure provides the association between the X2APIC ID of a logical processor and the proximity domain to which the logical processor belongs. This patch adds 2 new subtables to MADT and one new subtable to SRAT. This patch also changes x86_acpiid_to_apicid from u8 to u32 for x2APIC ID, and changes mp_register_lapic to accept 32-bit id. But there are still some 8-bit apic id hardcode and assumptions in Xen code, it needs to be fixed in future. Signed-off-by: Weidong Han <weidong.han@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel