37 lines
1.1 KiB
Diff
37 lines
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Sainath Grandhi <sainath.grandhi@intel.com>
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Date: Fri, 2 Nov 2018 16:21:22 -0700
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Subject: [PATCH] SOS: Guest x2APIC support for SOS
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This patch adds support to use x2APIC in SOS when ACRN exposes x2APIC
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to guests and supports x2APIC MSR emulation.
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On older versions of ACRN which does not expose x2APIC in cpuid,
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this patch does not do anything.
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Tracked-On: PKT-1592
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Tracked-On: https://github.com/projectacrn/acrn-hypervisor/issues/1717
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Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
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---
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arch/x86/acrn/acrn.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/arch/x86/acrn/acrn.c b/arch/x86/acrn/acrn.c
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index 8283673604f9..6b01b27794a1 100644
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--- a/arch/x86/acrn/acrn.c
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+++ b/arch/x86/acrn/acrn.c
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@@ -56,8 +56,8 @@ static void acrn_pin_vcpu(int cpu)
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static bool acrn_x2apic_available(void)
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{
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- /* do not support x2apic */
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- return false;
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+ /* ACRN supports x2apic emulation */
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+ return true;
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}
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static void __init acrn_init_mem_mapping(void)
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--
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https://clearlinux.org
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