[PATCH v5 12/17] irqdomain: Add IRQ_DOMAIN_FLAG_MSI_REMAP value

From	Eric Auger <eric.auger@redhat.com>
Newsgroups	linux.kernel
Subject	[PATCH v5 12/17] irqdomain: Add IRQ_DOMAIN_FLAG_MSI_REMAP value
Date	2017-01-04 14:50 +0100
Message-ID	<sVU6Z-5lr-1@gated-at.bofh.it> (permalink)
References	<sVTXj-5hJ-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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This new enum value aims at indicating whether the irq domain
implements MSI remapping. This property is useful to assess
the IRQ assignment safety at VFIO level.

Signed-off-by: Eric Auger <eric.auger@redhat.com>

---
---
 include/linux/irqdomain.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index ffb8460..ab017b2 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -183,6 +183,9 @@ enum {
 	/* Irq domain is an IPI domain with single virq */
 	IRQ_DOMAIN_FLAG_IPI_SINGLE	= (1 << 3),
 
+	/* Irq domain is MSI remapping capable */
+	IRQ_DOMAIN_FLAG_MSI_REMAP	= (1 << 4),
+
 	/*
 	 * Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
 	 * for implementation specific purposes and ignored by the
-- 
1.9.1

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[PATCH v5 12/17] irqdomain: Add IRQ_DOMAIN_FLAG_MSI_REMAP value Eric Auger <eric.auger@redhat.com> - 2017-01-04 14:50 +0100

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