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authorEric Auger <eric.auger@redhat.com>2016-07-22 16:20:42 +0000
committerMarc Zyngier <marc.zyngier@arm.com>2016-07-22 18:52:03 +0100
commit995a0ee9809b6948bb7bfea77f129fe1d5157cc1 (patch)
treeaa87eb8de3f3e111b9dcc4b470a24a660cd6bb8a /Documentation
parent180ae7b1182344ca617d8b5200306b02a6b5075d (diff)
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KVM: arm/arm64: Enable MSI routing
Up to now, only irqchip routing entries could be set. This patch adds the capability to insert MSI routing entries. For ARM64, let's also increase KVM_MAX_IRQ_ROUTES to 4096: this include SPI irqchip routes plus MSI routes. In the future this might be extended. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/virtual/kvm/api.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 7e5f9afcc693..7a04216d7278 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2381,6 +2381,9 @@ On arm/arm64, gsi routing being supported, the following can happen:
- in case no routing entry is associated to this gsi, injection fails
- in case the gsi is associated to an irqchip routing entry,
irqchip.pin + 32 corresponds to the injected SPI ID.
+- in case the gsi is associated to an MSI routing entry, the MSI
+ message and device ID are translated into an LPI (support restricted
+ to GICv3 ITS in-kernel emulation).
4.76 KVM_PPC_ALLOCATE_HTAB