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alistair23-linux/arch/powerpc/kvm
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Aneesh Kumar K.V a5d4b5891c powerpc/mm: Fixup tlbie vs store ordering issue on POWER9 
On POWER9, under some circumstances, a broadcast TLB invalidation
might complete before all previous stores have drained, potentially
allowing stale stores from becoming visible after the invalidation.
This works around it by doubling up those TLB invalidations which was
verified by HW to be sufficient to close the risk window.

This will be documented in a yet-to-be-published errata.

Fixes: 1a472c9dba ("powerpc/mm/radix: Add tlbflush routines")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[mpe: Enable the feature in the DT CPU features code for all Power9,
      rename the feature to CPU_FTR_P9_TLBIE_BUG per benh.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-23 20:48:03 +11:00
..
book3s.c KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_guest_debug 2017-12-14 09:26:56 +01:00
book3s.h
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
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 Second PPC KVM update for 4.16 2018-02-09 22:03:06 +01:00
book3s_64_mmu_radix.c powerpc/mm: Fixup tlbie vs store ordering issue on POWER9 2018-03-23 20:48:03 +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 powerpc/mm: Rename find_linux_pte_or_hugepte() 2017-08-17 23:13:46 +10:00
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 changes for 4.16 2018-02-10 13:16:35 -08:00
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: Fixup tlbie vs store ordering issue on POWER9 2018-03-23 20:48:03 +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 changes for 4.16 2018-02-10 13:16:35 -08:00
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
book3s_pr.c Second PPC KVM update for 4.16 2018-02-09 22:03:06 +01:00
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 KVM changes for 4.16 2018-02-10 13:16:35 -08:00
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
booke_emulate.c
booke_interrupts.S
bookehv_interrupts.S
e500.c KVM: PPC: e500: Fix some NULL dereferences on error 2017-08-31 12:36:44 +10:00
e500.h
e500_emulate.c
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: BookE: Use vma_pages function 2017-10-14 13:39:49 +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 Second PPC KVM update for 4.16 2018-02-09 22:03:06 +01:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00