CONFIG_X86_POSTED_MSI: Enable MSI and MSI-x delivery by posted interrupts

General informations

The Linux kernel configuration item CONFIG_X86_POSTED_MSI:

• prompt: Enable MSI and MSI-x delivery by posted interrupts
• type: bool
• depends on: CONFIG_X86_64 && CONFIG_IRQ_REMAP
• defined in arch/x86/Kconfig
• found in Linux kernels: 6.10–6.13, 6.14-rc+HEAD

Help text

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.

Hardware

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This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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