1. Read 32bit CPU Init APIC ID from CPUID leaf B in XAPIC mode.
2. Read CPU APIC ID from CPUID leaf B in case CPU Init APIC ID is larger 255 in XAPIC mode. Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14674 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -4,7 +4,7 @@
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Local APIC library assumes local APIC is enabled. It does not
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handles cases where local APIC is disabled.
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Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2010 - 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@@ -78,7 +78,7 @@ SetApicMode (
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/**
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Get the initial local APIC ID of the executing processor assigned by hardware upon power on or reset.
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In xAPIC mode, the initial local APIC ID is 8-bit, and may be different from current APIC ID.
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In xAPIC mode, the initial local APIC ID may be different from current APIC ID.
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In x2APIC mode, the local APIC ID can't be changed and there is no concept of initial APIC ID. In this case,
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the 32-bit local APIC ID is returned as initial APIC ID.
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@@ -1,7 +1,7 @@
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/** @file
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IA32 Local APIC Definitions.
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Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2010 - 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@@ -23,7 +23,9 @@
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//
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// Definitions for CPUID instruction
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//
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#define CPUID_SIGNATURE 0x0
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#define CPUID_VERSION_INFO 0x1
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#define CPUID_EXTENDED_TOPOLOGY 0xB
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#define CPUID_EXTENDED_FUNCTION 0x80000000
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#define CPUID_VIR_PHY_ADDRESS_SIZE 0x80000008
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