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Nicholas Piggin 71d29f43b6 KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size 
THP paths can defer splitting compound pages until after the actual
remap and TLB flushes to split a huge PMD/PUD. This causes radix
partition scope page table mappings to get out of synch with the host
qemu page table mappings.

This results in random memory corruption in the guest when running
with THP. The easiest way to reproduce is use KVM balloon to free up
a lot of memory in the guest and then shrink the balloon to give the
memory back, while some work is being done in the guest.

Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
 		2018-09-12 08:50:50 +10:00
..
Kconfig Second PPC KVM update for 4.16 2018-02-09 22:03:06 +01:00
Makefile KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file 2018-05-31 11:35:12 +10:00
book3s.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
book3s.h KVM: PPC: Book3S PR: Add guard code to prevent returning to guest with PR=0 and Transactional state 2018-06-01 10:30:39 +10:00
book3s_32_mmu.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
book3s_32_mmu_host.c
…
book3s_32_sr.S
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book3s_64_mmu.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
book3s_64_mmu_host.c
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book3s_64_mmu_hv.c PPC KVM fixes for 4.19 2018-09-04 21:12:46 +02:00
book3s_64_mmu_radix.c KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size 2018-09-12 08:50:50 +10:00
book3s_64_slb.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
book3s_64_vio.c Minor code cleanups for PPC. 2018-08-19 10:38:36 -07:00
book3s_64_vio_hv.c KVM: PPC: Avoid marking DMA-mapped pages dirty in real mode 2018-09-12 08:49:54 +10:00
book3s_emulate.c KVM: PPC: Book3S PR: Fix failure status setting in tabort. emulation 2018-06-13 09:46:13 +10:00
book3s_exports.c
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book3s_hv.c powerpc fixes for 4.19 #2 2018-08-24 09:34:23 -07:00
book3s_hv_builtin.c mm/cma: remove unsupported gfp_mask parameter from cma_alloc() 2018-08-17 16:20:32 -07:00
book3s_hv_hmi.c
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book3s_hv_interrupts.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +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: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
book3s_hv_rm_xics.c KVM: PPC: Add pt_regs into kvm_vcpu_arch and move vcpu->arch.gpr[] into it 2018-05-18 15:38:23 +10:00
book3s_hv_rm_xive.c
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book3s_hv_rmhandlers.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
book3s_hv_tm.c KVM: PPC: Move nip/ctr/lr/xer registers to pt_regs in kvm_vcpu_arch 2018-05-18 15:38:23 +10:00
book3s_hv_tm_builtin.c KVM: PPC: Move nip/ctr/lr/xer registers to pt_regs in kvm_vcpu_arch 2018-05-18 15:38:23 +10:00
book3s_interrupts.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
book3s_mmu_hpte.c
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book3s_paired_singles.c
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book3s_pr.c treewide: correct "differenciate" and "instanciate" typos 2018-08-23 18:48:43 -07:00
book3s_pr_papr.c
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book3s_rmhandlers.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
book3s_rtas.c
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book3s_segment.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
book3s_xics.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
book3s_xics.h
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book3s_xive.c treewide: correct "differenciate" and "instanciate" typos 2018-08-23 18:48:43 -07:00
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 powerpc/64s: Remove POWER9 DD1 support 2018-07-16 11:37:21 +10:00
booke.c KVM: PPC: Move nip/ctr/lr/xer registers to pt_regs in kvm_vcpu_arch 2018-05-18 15:38:23 +10:00
booke.h
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booke_emulate.c KVM: PPC: Move nip/ctr/lr/xer registers to pt_regs in kvm_vcpu_arch 2018-05-18 15:38:23 +10:00
booke_interrupts.S
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bookehv_interrupts.S
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e500.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
e500.h
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e500_emulate.c KVM: PPC: Move nip/ctr/lr/xer registers to pt_regs in kvm_vcpu_arch 2018-05-18 15:38:23 +10:00
e500_mmu.c KVM: PPC: Move nip/ctr/lr/xer registers to pt_regs in kvm_vcpu_arch 2018-05-18 15:38:23 +10:00
e500_mmu_host.c KVM: PPC: Reimplement non-SIMD LOAD/STORE instruction mmio emulation with analyse_instr() input 2018-05-22 19:51:08 +10:00
e500_mmu_host.h
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e500mc.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
emulate.c powerpc/64s: Remove POWER4 support 2018-04-01 00:47:50 +11:00
emulate_loadstore.c KVM: PPC: Remove mmio_vsx_tx_sx_enabled in KVM MMIO emulation 2018-07-18 15:14:45 +10:00
fpu.S
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irq.h
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mpic.c
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powerpc.c Minor code cleanups for PPC. 2018-08-19 10:38:36 -07:00
timing.c KVM: PPC: Use seq_puts() in kvmppc_exit_timing_show() 2018-01-11 20:36:06 +11:00
timing.h
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tm.S KVM: PPC: Book3S PR: Support TAR handling for PR KVM HTM 2018-06-01 10:30:43 +10:00
trace.h
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trace_book3s.h
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trace_booke.h
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trace_hv.h
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trace_pr.h KVM: PPC: Remove unused kvm_unmap_hva callback 2018-03-19 10:08:29 +11:00