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| author | Eric Auger <eric.auger@redhat.com> | 2016-07-22 16:20:42 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2016-07-22 18:52:03 +0100 |
| commit | 995a0ee9809b6948bb7bfea77f129fe1d5157cc1 (patch) | |
| tree | aa87eb8de3f3e111b9dcc4b470a24a660cd6bb8a /Documentation/virtual | |
| parent | 180ae7b1182344ca617d8b5200306b02a6b5075d (diff) | |
| download | linux-next-995a0ee9809b6948bb7bfea77f129fe1d5157cc1.tar.gz | |
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/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 3 |
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 |