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* kvm/ppc/mpic: fix missing unlock in set_base_addr()Wei Yongjun2013-05-021-1/+1
| | | | | | | | | | | Add the missing unlock before return from function set_base_addr() when disables the mapping. Introduced by commit 5df554ad5b7522ea62b0ff9d5be35183494efc21 (kvm/ppc/mpic: in-kernel MPIC emulation) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm/ppc/mpic: remove usersScott Wood2013-05-021-1/+0
| | | | | | | | This is an unused (no pun intended) leftover from when this code did reference counting. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm/ppc/mpic: fix mmio region lists when multiple guests usedScott Wood2013-05-021-21/+32
| | | | | | | | | | | | Keeping a linked list of statically defined objects doesn't work very well when we have multiple guests. :-P Switch to an array of constant objects. This fixes a hang when multiple guests are used. Signed-off-by: Scott Wood <scottwood@freescale.com> [agraf: remove struct list_head from mem_reg] Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm/ppc/mpic: Eliminate mmio_mappedScott Wood2013-04-261-28/+1
| | | | | | | | | | | We no longer need to keep track of this now that MPIC destruction always happens either during VM destruction (after MMIO has been destroyed) or during a failed creation (before the fd has been exposed to userspace, and thus before the MMIO region could have been registered). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm: destroy emulated devices on VM exitScott Wood2013-04-261-2/+0
| | | | | | | | The hassle of getting refcounting right was greater than the hassle of keeping a list of devices to destroy on VM exit. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* KVM: PPC: Support irq routing and irqfd for in-kernel MPICAlexander Graf2013-04-261-1/+110
| | | | | | | | | Now that all the irq routing and irqfd pieces are generic, we can expose real irqchip support to all of KVM's internal helpers. This allows us to use irqfd with the in-kernel MPIC. Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm/ppc/mpic: add KVM_CAP_IRQ_MPICScott Wood2013-04-261-7/+75
| | | | | | | | | | | | | 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>
* kvm/ppc/mpic: in-kernel MPIC emulationScott Wood2013-04-261-190/+572
| | | | | | | | Hook the MPIC code up to the KVM interfaces, add locking, etc. Signed-off-by: Scott Wood <scottwood@freescale.com> [agraf: add stub function for kvmppc_mpic_set_epr, non-booke, 64bit] Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm/ppc/mpic: adapt to kernel style and environmentScott Wood2013-04-261-237/+208
| | | | | | | | | | Remove braces that Linux style doesn't permit, remove space after '*' that Lindent added, keep error/debug strings contiguous, etc. Substitute type names, debug prints, etc. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm/ppc/mpic: remove some obviously unneeded codeScott Wood2013-04-261-344/+0
| | | | | | | | | Remove some parts of the code that are obviously QEMU or Raven specific before fixing style issues, to reduce the style issues that need to be fixed. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm/ppc/mpic: import hw/openpic.c from QEMUScott Wood2013-04-261-0/+1686
This is QEMU's hw/openpic.c from commit abd8d4a4d6dfea7ddea72f095f993e1de941614e ("Update version for 1.4.0-rc0"), run through Lindent with no other changes to ease merging future changes between Linux and QEMU. Remaining style issues (including those introduced by Lindent) will be fixed in a later patch. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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