Commit 7fec07fd authored by Jacob Pan's avatar Jacob Pan Committed by Thomas Gleixner
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x86/irq: Add a Kconfig option for posted MSI 



This option will be used to support delivering MSIs as posted
interrupts. Interrupt remapping is required.

Signed-off-by: default avatarJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240423174114.526704-5-jacob.jun.pan@linux.intel.com
parent 2254808b

arch/x86/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -464,6 +464,17 @@ config X86_X2APIC 


	  If you don't know what to do here, say N.



config X86_POSTED_MSI

	bool "Enable MSI and MSI-x delivery by posted interrupts"

	depends on X86_64 && IRQ_REMAP

	help

	  This enables MSIs that are under interrupt remapping to be delivered as

	  posted interrupts to the host kernel. Interrupt throughput can

	  potentially be improved by coalescing CPU notifications during high

	  frequency bursts.



	  If you don't know what to do here, say N.



config X86_MPPARSE

	bool "Enable MPS table" if ACPI

	default y