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[PATCH 2/3] x86/defconfig: add CONFIG_IRQ_REMAP
- To: Thomas Gleixner <tglx@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, Suresh Siddha <suresh.b.siddha@xxxxxxxxx>, "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>, Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>, Wei Liu <wei.liu@xxxxxxxxxx>, Dexuan Cui <decui@xxxxxxxxxxxxx>, Long Li <longli@xxxxxxxxxxxxx>, Ajay Kaher <ajay.kaher@xxxxxxxxxxxx>, Alexey Makhalov <alexey.makhalov@xxxxxxxxxxxx>, Broadcom internal kernel review list <bcm-kernel-feedback-list@xxxxxxxxxxxx>, Jan Kiszka <jan.kiszka@xxxxxxxxxxx>, Paolo Bonzini <pbonzini@xxxxxxxxxx>, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
- From: Shashank Balaji <shashank.mahadasyam@xxxxxxxx>
- Date: Mon, 02 Feb 2026 18:51:03 +0900
- Cc: Ingo Molnar <mingo@xxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxx, jailhouse-dev@xxxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Rahul Bukte <rahul.bukte@xxxxxxxx>, Shashank Balaji <shashank.mahadasyam@xxxxxxxx>, Daniel Palmer <daniel.palmer@xxxxxxxx>, Tim Bird <tim.bird@xxxxxxxx>
- Delivery-date: Mon, 02 Feb 2026 09:57:33 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Interrupt remapping is an architectural dependency of x2apic, which is already
enabled in the defconfig. Enable CONFIG_IRQ_REMAP so that a defconfig kernel on
bare metal actually uses x2apic.
Co-developed-by: Rahul Bukte <rahul.bukte@xxxxxxxx>
Signed-off-by: Rahul Bukte <rahul.bukte@xxxxxxxx>
Signed-off-by: Shashank Balaji <shashank.mahadasyam@xxxxxxxx>
---
arch/x86/configs/x86_64_defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/configs/x86_64_defconfig
b/arch/x86/configs/x86_64_defconfig
index 7d7310cdf8b0..269f7d808be4 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -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
--
2.43.0
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