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linux-stable/arch/powerpc/kvm
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Paul Mackerras c4c8a7643e KVM: PPC: Book3S HV: Radix page fault handler optimizations 
This improves the handling of transparent huge pages in the radix
hypervisor page fault handler.  Previously, if a small page is faulted
in to a 2MB region of guest physical space, that means that there is
a page table pointer at the PMD level, which could never be replaced
by a leaf (2MB) PMD entry.  This adds the code to clear the PMD,
invlidate the page walk cache and free the page table page in this
situation, so that the leaf PMD entry can be created.

This also adds code to check whether a PMD or PTE being inserted is
the same as is already there (because of a race with another CPU that
faulted on the same page) and if so, we don't replace the existing
entry, meaning that we don't invalidate the PTE or PMD and do a TLB
invalidation.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2018-03-19 10:08:38 +11:00
..
book3s.c KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00
book3s.h KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00
book3s_32_mmu.c KVM: PPC: Book3S PR: Ratelimit copy data failure error messages 2017-02-17 14:03:35 +11:00
book3s_32_mmu_host.c powerpc/mm: Move hash related mmu-*.h headers to book3s/ 2016-03-03 21:19:21 +11:00
book3s_32_sr.S
book3s_64_mmu.c KVM: PPC: Book3S PR: Fix WIMG handling under pHyp 2018-01-10 20:45:00 +11:00
book3s_64_mmu_host.c * ARM: HYP mode stub supports kexec/kdump on 32-bit; improved PMU 2017-05-08 12:37:56 -07:00
book3s_64_mmu_hv.c KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00
book3s_64_mmu_radix.c KVM: PPC: Book3S HV: Radix page fault handler optimizations 2018-03-19 10:08:38 +11:00
book3s_64_slb.S KVM: PPC: Book3S: Fix gas warning due to using r0 as immediate 0 2017-11-01 15:17:25 +11:00
book3s_64_vio.c KVM: PPC: Book3S: Protect kvmppc_gpa_to_ua() with SRCU 2017-10-14 11:35:41 +11:00
book3s_64_vio_hv.c KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00
book3s_emulate.c KVM: PPC: Book3S PR: Do not fail emulation with mtspr/mfspr for unknown SPRs 2017-04-20 11:39:32 +10:00
book3s_exports.c
book3s_hv.c KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00
book3s_hv_builtin.c KVM: PPC: Book3S HV: Run HPT guests on POWER9 radix hosts 2017-11-01 15:36:41 +11:00
book3s_hv_hmi.c powerpc: move hmi.c to arch/powerpc/kvm/ 2016-09-09 16:18:07 +10:00
book3s_hv_interrupts.S KVM: PPC: Book3S HV: Close race with testing for signals on guest entry 2017-07-01 18:59:38 +10:00
book3s_hv_ras.c Merge branch 'topic/ppc-kvm' into next 2018-01-21 22:43:43 +11:00
book3s_hv_rm_mmu.c powerpc/mm: Remove unused flag arg in global_invalidates 2018-01-21 20:30:44 +11:00
book3s_hv_rm_xics.c Merge branch 'kvm-ppc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD 2017-05-09 11:50:01 +02:00
book3s_hv_rm_xive.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
book3s_hv_rmhandlers.S KVM: PPC: Book3S HV: Fix trap number return from __kvmppc_vcore_entry 2018-03-14 15:10:50 +11:00
book3s_interrupts.S KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled 2018-02-01 13:35:33 +11:00
book3s_mmu_hpte.c sched/headers: Prepare to use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h> 2017-03-02 08:42:38 +01:00
book3s_paired_singles.c powerpc: Create disable_kernel_{fp,altivec,vsx,spe}() 2015-12-01 13:52:25 +11:00
book3s_pr.c KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00
book3s_pr_papr.c KVM: PPC: Book3S PR: Enable in-kernel TCE handlers for PR KVM 2017-10-14 16:38:19 +11:00
book3s_rmhandlers.S powerpc/64s: Simple RFI macro conversions 2018-01-10 03:07:30 +11:00
book3s_rtas.c KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller 2017-04-27 21:37:29 +10:00
book3s_segment.S powerpc/64s: Simple RFI macro conversions 2018-01-10 03:07:30 +11:00
book3s_xics.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
book3s_xics.h KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller 2017-04-27 21:37:29 +10:00
book3s_xive.c treewide/trivial: Remove ';;$' typo noise 2018-02-22 10:59:33 +01:00
book3s_xive.h KVM: PPC: Book3S HV: Enable use of the new XIVE "single escalation" feature 2018-01-19 12:10:21 +11:00
book3s_xive_template.c KVM: PPC: Book3S HV: Don't access XIVE PIPR register using byte accesses 2017-09-12 16:02:07 +10:00
booke.c KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_guest_debug 2017-12-14 09:26:56 +01:00
booke.h KVM: PPC: Book3e: Add AltiVec support 2014-09-22 10:11:32 +02:00
booke_emulate.c KVM: PPC: BOOKE: Emulate debug registers and exception 2014-09-22 10:11:33 +02:00
booke_interrupts.S
bookehv_interrupts.S powerpc/kvm: common sw breakpoint instr across ppc 2014-09-22 10:11:36 +02:00
e500.c KVM: PPC: e500: Fix some NULL dereferences on error 2017-08-31 12:36:44 +10:00
e500.h kvm: rename pfn_t to kvm_pfn_t 2016-01-15 17:56:32 -08:00
e500_emulate.c KVM: PPC: e500: Emulate TMCFG0 TMRN register 2015-10-15 15:58:16 +11:00
e500_mmu.c KVM: PPC: e500: Rename jump labels in kvmppc_e500_tlb_init() 2016-09-13 14:32:47 +10:00
e500_mmu_host.c KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00
e500_mmu_host.h
e500mc.c KVM: PPC: e500mc: Fix a NULL dereference 2017-08-31 12:36:44 +10:00
emulate.c KVM: PPC: Book3S HV: Enable guests to use large decrementer mode on POWER9 2017-06-19 14:02:04 +10:00
emulate_loadstore.c KVM: PPC: Book3S: Add MMIO emulation for VMX instructions 2018-02-09 16:51:51 +11:00
fpu.S
irq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig Second PPC KVM update for 4.16 2018-02-09 22:03:06 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpic.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
powerpc.c KVM: PPC: Book3S: Fix compile error that occurs with some gcc versions 2018-02-13 15:45:21 +11:00
timing.c KVM: PPC: Use seq_puts() in kvmppc_exit_timing_show() 2018-01-11 20:36:06 +11:00
timing.h
trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace_book3s.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace_booke.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace_hv.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace_pr.h KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00