linux_dsm_epyc7002/arch/powerpc/kvm
pingfank@linux.vnet.ibm.com 1ad9f23873 KVM: PPC: Book3S: HV: make _PAGE_NUMA take effect
Numa fault is a method which help to achieve auto numa balancing.
When such a page fault takes place, the page fault handler will check
whether the page is placed correctly. If not, migration should be
involved to cut down the distance between the cpu and pages.

A pte with _PAGE_NUMA help to implement numa fault. It means not to
allow the MMU to access the page directly. So a page fault is triggered
and numa fault handler gets the opportunity to run checker.

As for the access of MMU, we need special handling for the powernv's guest.
When we mark a pte with _PAGE_NUMA, we already call mmu_notifier to
invalidate it in guest's htab, but when we tried to re-insert them,
we firstly try to map it in real-mode. Only after this fails, we fallback
to virt mode, and most of important, we run numa fault handler in virt
mode.  This patch guards the way of real-mode to ensure that if a pte is
marked with _PAGE_NUMA, it will NOT be mapped in real mode, instead, it will
be mapped in virt mode and have the opportunity to be checked with placement.

Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-04-28 12:35:41 +02:00
..
44x_emulate.c kvm: powerpc: Add kvmppc_ops callback 2013-10-17 15:24:26 +02:00
44x_tlb.c kvm: powerpc: Add kvmppc_ops callback 2013-10-17 15:24:26 +02:00
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: Add devname:kvm aliases for modules 2014-01-09 10:14:00 +01:00
book3s_32_mmu_host.c KVM: PPC: NULL return of kvmppc_mmu_hpte_cache_next should be handled 2014-01-09 10:15:11 +01:00
book3s_32_mmu.c KVM: PPC: Book3S PR: Better handling of host-side read-only pages 2013-10-17 14:49:35 +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 kvm: powerpc: book3s: pr: move PR related tracepoints to a separate header 2013-10-17 15:36:22 +02:00
book3s_64_mmu_hv.c KVM: PPC: Book3S HV: Add transactional memory support 2014-03-29 19:58:02 +11:00
book3s_64_mmu.c KVM: PPC: Book3S PR: Better handling of host-side read-only pages 2013-10-17 14:49:35 +02:00
book3s_64_slb.S powerpc: Fix little endian lppaca, slb_shadow and dtl_entry 2013-08-14 15:33:35 +10:00
book3s_64_vio_hv.c KVM: PPC: Book3S: Introduce hypervisor call H_GET_TCE 2014-03-26 23:34:27 +11:00
book3s_64_vio.c ppc: kvm: use anon_inode_getfd() with O_CLOEXEC flag 2013-08-26 13:19:56 +03:00
book3s_emulate.c kvm: powerpc: book3s: Support building HV and PR KVM as module 2013-10-17 15:45:35 +02:00
book3s_exports.c KVM: PPC: Use load_fp/vr_state rather than load_up_fpu/altivec 2014-01-09 10:14:59 +01:00
book3s_hv_builtin.c powerpc/kvm: Contiguous memory allocator based RMA allocation 2013-07-08 16:20:20 +02:00
book3s_hv_cma.c powerpc/kvm: Use 256K chunk to track both RMA and hash page table allocation. 2013-07-08 16:21:13 +02:00
book3s_hv_cma.h powerpc/kvm: Use 256K chunk to track both RMA and hash page table allocation. 2013-07-08 16:21:13 +02:00
book3s_hv_interrupts.S KVM: PPC: Book3S HV: Save/restore host PMU registers that are new in POWER8 2014-03-29 19:58:52 +11:00
book3s_hv_ras.c powerpc/book3s: Decode and save machine check event. 2013-12-05 16:05:20 +11:00
book3s_hv_rm_mmu.c KVM: PPC: Book3S: HV: make _PAGE_NUMA take effect 2014-04-28 12:35:41 +02:00
book3s_hv_rm_xics.c KVM: PPC: Book3S HV: Add support for real mode ICP in XICS emulation 2013-04-26 20:27:32 +02:00
book3s_hv_rmhandlers.S Merge tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2014-04-02 14:50:10 -07:00
book3s_hv.c KVM: PPC: Book3S HV: Return ENODEV error rather than EIO 2014-03-29 19:58:29 +11:00
book3s_interrupts.S powerpc/booke64: Use SPRG7 for VDSO 2014-03-19 19:57:14 -05:00
book3s_mmu_hpte.c kvm: powerpc: book3s: pr: move PR related tracepoints to a separate header 2013-10-17 15:36:22 +02:00
book3s_paired_singles.c KVM: PPC: Store FP/VSX/VMX state in thread_fp/vr_state structures 2014-01-09 10:15:00 +01:00
book3s_pr_papr.c KVM: PPC: Book3S PR: Make HPT accesses and updates SMP-safe 2013-10-17 14:45:04 +02:00
book3s_pr.c Merge branch 'kvm-ppc-next' of git://github.com/agraf/linux-2.6 into kvm-queue 2014-01-29 18:29:01 +01:00
book3s_rmhandlers.S Merge branch 'kvm-ppc-next' of git://github.com/agraf/linux-2.6 into kvm-queue 2014-01-29 18:29:01 +01:00
book3s_rtas.c KVM: PPC: Book3S: Trim top 4 bits of physical address in RTAS code 2014-03-29 19:58:23 +11:00
book3s_segment.S KVM: PPC: Book3S PR: Cope with doorbell interrupts 2014-01-27 16:01:23 +01:00
book3s_xics.c KVM: PPC: fix couple of memory leaks in MPIC/XICS devices 2014-01-09 10:14:54 +01:00
book3s_xics.h KVM: PPC: Book3S: Add API for in-kernel XICS emulation 2013-05-02 15:28:36 +02:00
book3s.c KVM: PPC: Store FP/VSX/VMX state in thread_fp/vr_state structures 2014-01-09 10:15:00 +01:00
book3s.h kvm: powerpc: book3s: Allow the HV and PR selection per virtual machine 2013-10-17 18:42:36 +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 Merge branch 'kvm-ppc-next' of git://github.com/agraf/linux-2.6 into kvm-queue 2014-01-29 18:29:01 +01:00
booke.h KVM: PPC: Load/save FP/VMX/VSX state directly to/from vcpu struct 2014-01-09 10:15:02 +01:00
bookehv_interrupts.S powerpc/booke64: Use SPRG_TLB_EXFRAME on bolted handlers 2014-03-19 19:57:15 -05:00
e500_emulate.c kvm: powerpc: Add kvmppc_ops callback 2013-10-17 15:24:26 +02:00
e500_mmu_host.c kvm: powerpc: use caching attributes as per linux pte 2014-01-09 10:15:08 +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: Fix bad address type in deliver_tlb_misss() 2014-01-27 16:00:54 +01:00
e500.c KVM: PPC: Add devname:kvm aliases for modules 2014-01-09 10:14:00 +01:00
e500.h kvm: powerpc: use caching attributes as per linux pte 2014-01-09 10:15:08 +01:00
e500mc.c KVM: PPC: Add devname:kvm aliases for modules 2014-01-09 10:14:00 +01:00
emulate.c KVM: PPC: Book3S: MMIO emulation support for little endian guests 2014-01-27 16:00:39 +01:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
irq.h KVM: PPC: Book3S: Add API for in-kernel XICS emulation 2013-05-02 15:28:36 +02:00
Kconfig Here are the 3.13 KVM changes. There was a lot of work on the PPC 2013-11-15 13:51:36 +09:00
Makefile kvm: powerpc: book3s: Support building HV and PR KVM as module 2013-10-17 15:45:35 +02:00
mpic.c KVM: PPC: fix couple of memory leaks in MPIC/XICS devices 2014-01-09 10:14:54 +01:00
powerpc.c kvm/ppc: IRQ disabling cleanup 2014-01-27 16:00:55 +01:00
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_booke.h kvm: powerpc: booke: Move booke related tracepoints to separate header 2013-10-17 15:37:16 +02:00
trace_pr.h kvm: powerpc: book3s: pr: move PR related tracepoints to a separate header 2013-10-17 15:36:22 +02:00
trace.h kvm: powerpc: booke: Move booke related tracepoints to separate header 2013-10-17 15:37:16 +02:00