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x86/64/defconfig: Add CONFIG_IRQ_REMAP

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x2apic is enabled in the defconfig, and interrupt remapping is an
architectural dependency of x2apic as per the Intel SDM:

  Routing of device interrupts to local APIC units operating in x2APIC
  mode requires use of the interrupt-remapping architecture specified in
  the Intel® Virtualization Technology for Directed I/O (Revision 1.3
  and/or later versions).

Enable CONFIG_IRQ_REMAP in defconfig so that a defconfig kernel on bare metal
actually uses x2apic.

Co-developed-by: Rahul Bukte <rahul.bukte@sony.com>
Signed-off-by: Rahul Bukte <rahul.bukte@sony.com>
Signed-off-by: Shashank Balaji <shashank.mahadasyam@sony.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Sohil Mehta <sohil.mehta@intel.com>
Acked-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260306-x2apic-fix-v2-2-bee99c12efa3@sony.com
This commit is contained in:
Shashank Balaji
2026-03-06 14:46:29 +09:00
committed by Borislav Petkov (AMD)
parent ae715818c5
commit bcf92fbca6
1 changed files with 1 additions and 0 deletions
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arch/x86/configs/x86_64_defconfig
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@@ -230,6 +230,7 @@ CONFIG_EEEPC_LAPTOP=y
CONFIG_AMD_IOMMU=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_IRQ_REMAP=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y