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bc5ad3f370
linux/arch/powerpc/kvm
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Benjamin Herrenschmidt bc5ad3f370 KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 
This adds in-kernel emulation of the XICS (eXternal Interrupt
Controller Specification) interrupt controller specified by PAPR, for
both HV and PR KVM guests.

The XICS emulation supports up to 1048560 interrupt sources.
Interrupt source numbers below 16 are reserved; 0 is used to mean no
interrupt and 2 is used for IPIs.  Internally these are represented in
blocks of 1024, called ICS (interrupt controller source) entities, but
that is not visible to userspace.

Each vcpu gets one ICP (interrupt controller presentation) entity,
used to store the per-vcpu state such as vcpu priority, pending
interrupt state, IPI request, etc.

This does not include any API or any way to connect vcpus to their
ICP state; that will be added in later patches.

This is based on an initial implementation by Michael Ellerman
<michael@ellerman.id.au> reworked by Benjamin Herrenschmidt and
Paul Mackerras.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
[agraf: fix typo, add dependency on !KVM_MPIC]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26 20:27:30 +02:00
..
44x_emulate.c KVM: PPC: 44x: fix DCR read/write 2012-10-30 10:54:50 +01:00
44x_tlb.c KVM: do not release the error page 2012-08-06 16:04:58 +03:00
44x_tlb.h KVM: ppc: rename 44x MMU functions used in booke.c 2009-03-24 11:02:56 +02:00
44x.c KVM: PPC: Book3E: Refactor ONE_REG ioctl implementation 2013-04-26 20:27:05 +02:00
book3s_32_mmu_host.c KVM: do not treat noslot pfn as a error pfn 2012-10-29 20:31:04 -02:00
book3s_32_mmu.c KVM: PPC: Put segment registers in shared page 2010-10-24 10:52:11 +02:00
book3s_32_sr.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_64_mmu_host.c powerpc: Rename USER_ESID_BITS* to ESID_BITS* 2013-03-17 12:45:44 +11:00
book3s_64_mmu_hv.c KVM: PPC: Book3S HV: Report VPA and DTL modifications in dirty map 2013-04-26 20:27:13 +02:00
book3s_64_mmu.c KVM: PPC: Interpret SDR1 as HVA in PAPR mode 2011-09-25 19:52:21 +03:00
book3s_64_slb.S KVM: PPC: Book3S: PR: No isync in slbie path 2012-05-06 16:19:09 +02:00
book3s_64_vio_hv.c kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM 2012-05-06 16:19:11 +02:00
book3s_64_vio.c kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM 2012-05-06 16:19:11 +02:00
book3s_emulate.c KVM: extend EMULATE_EXIT_USER to support different exit reasons 2013-04-26 20:27:03 +02:00
book3s_exports.c KVM: PPC: Book3S PR: Fix VSX handling 2012-12-06 01:34:02 +01:00
book3s_hv_builtin.c KVM: PPC: Quieten message about allocating linear regions 2012-10-05 23:38:40 +02:00
book3s_hv_interrupts.S KVM: PPC: Work around POWER7 DABR corruption problem 2012-04-08 14:01:36 +03:00
book3s_hv_ras.c KVM: PPC: Book3S HV: Fix compilation without CONFIG_PPC_POWERNV 2013-01-06 14:02:00 +01:00
book3s_hv_rm_mmu.c KVM: PPC: Book3S HV: Make HPT reading code notice R/C bit changes 2013-04-26 20:27:12 +02:00
book3s_hv_rmhandlers.S KVM: PPC: Book3S HV: Report VPA and DTL modifications in dirty map 2013-04-26 20:27:13 +02:00
book3s_hv.c KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
book3s_interrupts.S powerpc: Merge VCPU_GPR 2012-07-10 19:18:06 +10:00
book3s_mmu_hpte.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
book3s_paired_singles.c powerpc/kvm: Fallout from system.h disintegration 2012-04-02 14:00:04 +10:00
book3s_pr_papr.c KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
book3s_pr.c KVM: PPC: Book3S: Add infrastructure to implement kernel-side RTAS calls 2013-04-26 20:27:29 +02:00
book3s_rmhandlers.S KVM: PPC: Book3S PR: Fix VSX handling 2012-12-06 01:34:02 +01:00
book3s_rtas.c KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
book3s_segment.S powerpc: Move and fix MTMSR_EERI definition 2012-07-10 19:18:08 +10:00
book3s_xics.c KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
book3s_xics.h KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
book3s.c KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
booke_emulate.c KVM: PPC: BookE: Emulate mfspr on EPR 2013-01-10 13:42:30 +01:00
booke_interrupts.S KVM: PPC: booke: Added debug handler 2013-03-22 01:21:09 +01:00
booke.c kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC 2013-04-26 20:27:24 +02:00
booke.h KVM: PPC: booke: Allow multiple exception types 2013-02-13 12:56:40 +01:00
bookehv_interrupts.S KVM: PPC: bookehv64: Add support for interrupt handling 2012-12-06 01:34:11 +01:00
e500_emulate.c KVM: PPC: e500: Add support for EPTCFG register 2013-04-26 20:27:08 +02:00
e500_mmu_host.c kvm/ppc/e500: eliminate tlb_refs 2013-03-22 01:21:15 +01:00
e500_mmu_host.h KVM: PPC: E500: Make clear_tlb_refs and clear_tlb1_bitmap static 2013-01-24 19:23:33 +01:00
e500_mmu.c KVM: PPC: e500: Remove E.PT and E.HV.LRAT categories from VCPUs 2013-04-26 20:27:09 +02:00
e500.c KVM: PPC: e500: Expose MMU registers via ONE_REG 2013-04-26 20:27:06 +02:00
e500.h KVM: PPC: e500: Add support for TLBnPS registers 2013-04-26 20:27:07 +02:00
e500mc.c KVM: PPC: e500mc: Enable e6500 cores 2013-04-26 20:27:10 +02:00
emulate.c KVM: PPC: emulate dcbst 2013-04-17 15:21:15 +02:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
irq.h KVM: PPC: Support irq routing and irqfd for in-kernel MPIC 2013-04-26 20:27:25 +02:00
Kconfig KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
Makefile KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
mpic.c kvm/ppc/mpic: Eliminate mmio_mapped 2013-04-26 20:27:28 +02:00
powerpc.c KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller 2013-04-26 20:27:30 +02:00
timing.c KVM: PPC: fix partial application of "exit timing in ticks" 2011-07-12 13:16:28 +03:00
timing.h KVM: PPC: booke: category E.HV (GS-mode) support 2012-04-08 12:51:19 +03:00
trace.h Merge remote-tracking branch 'master' into queue 2012-10-29 19:15:32 -02:00