Until now, the delivery mode of MSI interrupts is set to the default mode set in the APIC driver. However, there are no restrictions in hardware to configure each interrupt with a different delivery mode. Specifying the delivery mode per interrupt is useful when one is interested in changing the delivery mode of a particular interrupt. For instance, this can be used to deliver an interrupt as non-maskable.
Cc: "H. Peter Anvin" <[email protected]> Cc: Ashok Raj <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Tony Luck <[email protected]> Cc: Joerg Roedel <[email protected]> Cc: Juergen Gross <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Wincy Van <[email protected]> Cc: Kate Stewart <[email protected]> Cc: Philippe Ombredanne <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Baoquan He <[email protected]> Cc: Dou Liyang <[email protected]> Cc: Jan Kiszka <[email protected]> Cc: "Ravi V. Shankar" <[email protected]> Cc: [email protected] Signed-off-by: Ricardo Neri <[email protected]> --- arch/x86/include/asm/msidef.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/msidef.h b/arch/x86/include/asm/msidef.h index ee2f8ccc32d0..38ccfdc2d96e 100644 --- a/arch/x86/include/asm/msidef.h +++ b/arch/x86/include/asm/msidef.h @@ -18,6 +18,7 @@ #define MSI_DATA_DELIVERY_MODE_SHIFT 8 #define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_MODE_SHIFT) #define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_MODE_SHIFT) +#define MSI_DATA_DELIVERY_NMI (4 << MSI_DATA_DELIVERY_MODE_SHIFT) #define MSI_DATA_LEVEL_SHIFT 14 #define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT) -- 2.17.1
