x86/apic/msi: Enable MSI_FLAG_PCI_MSIX_ALLOC_DYN

x86 MSI irqdomains can handle MSI-X allocation post MSI-X enable just out
of the box - on the vector domain and on the remapping domains,

Add the feature flag to the supported feature list

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232326.787373104@linutronix.de

diff --git a/arch/x86/include/asm/msi.h b/arch/x86/include/asm/msi.h
index 770295887e568f23e8d161256b12cd7e8fcddde7..935c6d4703418f86cd7b6e2734504d1c0419ef7c 100644 (file)
--- a/arch/x86/include/asm/msi.h
+++ b/arch/x86/include/asm/msi.h
@@ -63,7 +63,7 @@ struct msi_msg;
 u32 x86_msi_msg_get_destid(struct msi_msg *msg, bool extid);
 
 #define X86_VECTOR_MSI_FLAGS_SUPPORTED                                 \
-       (MSI_GENERIC_FLAGS_MASK | MSI_FLAG_PCI_MSIX)
+       (MSI_GENERIC_FLAGS_MASK | MSI_FLAG_PCI_MSIX | MSI_FLAG_PCI_MSIX_ALLOC_DYN)
 
 #define X86_VECTOR_MSI_FLAGS_REQUIRED                                  \
        (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS)