kernel/linux.git/arch/powerpc/kvm/mpic.c, branch linux-4.4.y

kvm/ppc/mpic: drop unused IRQ_testbit

2015-04-08T08:46:58+00:00

Drop unused static procedure which doesn't have callers within its translation unit. It had been already removed independently in QEMU[1] from the OpenPIC implementation borrowed from the kernel. [1] https://lists.gnu.org/archive/html/qemu-devel/2014-06/msg01812.html Signed-off-by: Arseny Solokha Cc: Alexander Graf Cc: Gleb Natapov Cc: Paolo Bonzini Message-Id: <1424768706-23150-3-git-send-email-asolokha@kb.kras.ru> Signed-off-by: Paolo Bonzini

KVM: move iodev.h from virt/kvm/ to include/kvm

2015-03-26T21:43:12+00:00

iodev.h contains definitions for the kvm_io_bus framework. This is needed both by the generic KVM code in virt/kvm as well as by architecture specific code under arch/. Putting the header file in virt/kvm and using local includes in the architecture part seems at least dodgy to me, so let's move the file into include/kvm, so that a more natural "#include " can be used by all of the code. This also solves a problem later when using struct kvm_io_device in arm_vgic.h. Fixing up the FSF address in the GPL header and a wrong include path on the way. Signed-off-by: Andre Przywara Acked-by: Christoffer Dall Reviewed-by: Marc Zyngier Reviewed-by: Marcelo Tosatti Signed-off-by: Marc Zyngier

KVM: Redesign kvm_io_bus_ API to pass VCPU structure to the callbacks.

2015-03-26T21:43:11+00:00

This is needed in e.g. ARM vGIC emulation, where the MMIO handling depends on the VCPU that does the access. Signed-off-by: Nikolay Nikolaev Signed-off-by: Andre Przywara Acked-by: Paolo Bonzini Acked-by: Christoffer Dall Reviewed-by: Marc Zyngier Signed-off-by: Marc Zyngier

KVM: irqchip: Provide and use accessors for irq routing table

2014-08-05T12:26:16+00:00

This provides accessor functions for the KVM interrupt mappings, in order to reduce the amount of code that accesses the fields of the kvm_irq_routing_table struct, and restrict that code to one file, virt/kvm/irqchip.c. The new functions are kvm_irq_map_gsi(), which maps from a global interrupt number to a set of IRQ routing entries, and kvm_irq_map_chip_pin, which maps from IRQ chip and pin numbers to a global interrupt number. This also moves the update of kvm_irq_routing_table::chip[][] into irqchip.c, out of the various kvm_set_routing_entry implementations. That means that none of the kvm_set_routing_entry implementations need the kvm_irq_routing_table argument anymore, so this removes it. This does not change any locking or data lifetime rules. Signed-off-by: Paul Mackerras Tested-by: Eric Auger Tested-by: Cornelia Huck Signed-off-by: Paolo Bonzini

KVM: PPC: MPIC: Reset IRQ source private members

2014-05-30T12:26:26+00:00

When we reset the in-kernel MPIC controller, we forget to reset some hidden state such as destmask and output. This state is usually set when the guest writes to the IDR register for a specific IRQ line. To make sure we stay in sync and don't forget hidden state, treat reset of the IDR register as a simple write of the IDR register. That automatically updates all the hidden state as well. Reported-by: Paul Janzen Signed-off-by: Alexander Graf

KVM: PPC: fix couple of memory leaks in MPIC/XICS devices

2014-01-09T09:14:54+00:00

XICS failed to free xics structure on error path. MPIC destroy handler forgot to delete kvm_device structure. Signed-off-by: Gleb Natapov Acked-by: Paul Mackerras Signed-off-by: Alexander Graf

kvm/ppc/mpic: fix missing unlock in set_base_addr()

2013-05-02T13:28:35+00:00

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 Signed-off-by: Alexander Graf

kvm/ppc/mpic: remove users

2013-05-02T13:28:34+00:00

This is an unused (no pun intended) leftover from when this code did reference counting. Signed-off-by: Scott Wood Signed-off-by: Alexander Graf

kvm/ppc/mpic: fix mmio region lists when multiple guests used

2013-05-02T13:28:33+00:00

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 [agraf: remove struct list_head from mem_reg] Signed-off-by: Alexander Graf

kvm/ppc/mpic: Eliminate mmio_mapped

2013-04-26T18:27:28+00:00

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 Signed-off-by: Alexander Graf