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authorScott Wood <scottwood@freescale.com>2013-04-12 18:08:47 +0400
committerAlexander Graf <agraf@suse.de>2013-04-26 22:27:24 +0400
commiteb1e4f43e0f47f2655372c7d32c43db9711c278e (patch)
treeac084d48a5590f6ca712242e0ca139abf57250a5 /Documentation/virtual
parent5df554ad5b7522ea62b0ff9d5be35183494efc21 (diff)
downloadlinux-eb1e4f43e0f47f2655372c7d32c43db9711c278e.tar.xz
kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC
Enabling this capability connects the vcpu to the designated in-kernel MPIC. Using explicit connections between vcpus and irqchips allows for flexibility, but the main benefit at the moment is that it simplifies the code -- KVM doesn't need vm-global state to remember which MPIC object is associated with this vm, and it doesn't need to care about ordering between irqchip creation and vcpu creation. Signed-off-by: Scott Wood <scottwood@freescale.com> [agraf: add stub functions for kvmppc_mpic_{dis,}connect_vcpu] Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'Documentation/virtual')
-rw-r--r--Documentation/virtual/kvm/api.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 66b58e494935..149558b1e81e 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2744,3 +2744,11 @@ to receive the topmost interrupt vector.
When disabled (args[0] == 0), behavior is as if this facility is unsupported.
When this capability is enabled, KVM_EXIT_EPR can occur.
+
+6.6 KVM_CAP_IRQ_MPIC
+
+Architectures: ppc
+Parameters: args[0] is the MPIC device fd
+ args[1] is the MPIC CPU number for this vcpu
+
+This capability connects the vcpu to an in-kernel MPIC device.