This option will be used to support delivering MSIs as posted
interrupts. Interrupt remapping is required.
Signed-off-by: Jacob Pan <[email protected]>
---
v2: Remove x2apic dependency
---
arch/x86/Kconfig | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 39886bab943a..f5688f4e299b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -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
--
2.25.1