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Benjamin Herrenschmidt bb9b52bd51 KVM: PPC: Book3S HV: Add missing barriers to XIVE code and document them 
This adds missing memory barriers to order updates/tests of
the virtual CPPR and MFRR, thus fixing a lost IPI problem.

While at it also document all barriers in this file.

This fixes a bug causing guest IPIs to occasionally get lost.  The
symptom then is hangs or stalls in the guest.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-08-24 20:02:01 +10:00
..
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_mmu.c
KVM: PPC: Book3S PR: Ratelimit copy data failure error messages
2017-02-17 14:03:35 +11:00
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
* 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: Book3S HV: Fix host crash on changing HPT size
2017-07-24 16:10:44 +10:00
book3s_64_mmu_radix.c
KVM: PPC: Book3S HV: Fix software walk of guest process page tables
2017-03-01 11:53:45 +11:00
book3s_64_mmu.c
KVM: PPC: Book3S PR: Preserve storage control bits
2017-04-20 11:38:14 +10:00
book3s_64_slb.S
KVM: PPC: Book3S PR: Rework SLB switching code
2014-05-30 14:26:30 +02:00
book3s_64_vio_hv.c
KVM: PPC: Book3S HV: Add radix checks in real-mode hypercall handlers
2017-05-12 15:08:09 +10:00
book3s_64_vio.c
KVM: PPC: VFIO: Add in-kernel acceleration for VFIO
2017-04-20 11:39:26 +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
KVM: PPC: Make shared struct aka magic page guest endian
2014-05-30 14:26:21 +02:00
book3s_hv_builtin.c
KVM: PPC: Book3S HV: Simplify dynamic micro-threading code
2017-07-01 18:59:01 +10:00
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
KVM: PPC: Book3S HV: Exit guest upon MCE when FWNMI capability is enabled
2017-06-22 11:24:57 +10:00
book3s_hv_rm_mmu.c
powerpc/mm: Trace tlbie(l) instructions
2017-06-23 21:14:49 +10:00
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
KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller
2017-04-27 21:37:29 +10:00
book3s_hv_rmhandlers.S
KVM: PPC: Book3S HV: Use msgsync with hypervisor doorbells on POWER9
2017-08-24 20:01:39 +10:00
book3s_hv.c
KVM: PPC: Book3S HV: Enable TM before accessing TM registers
2017-07-24 16:10:44 +10:00
book3s_interrupts.S
powerpc: Define and use PPC64_ELF_ABI_v2/v1
2016-06-14 13:58:27 +10:00
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_papr.c
KVM: PPC: Book3S PR: Don't include SPAPR TCE code on non-pseries platforms
2017-05-12 15:32:30 +10:00
book3s_pr.c
KVM: add kvm_{test,clear}_request to replace {test,clear}_bit
2017-04-27 14:12:22 +02:00
book3s_rmhandlers.S
powerpc: Define and use PPC64_ELF_ABI_v2/v1
2016-06-14 13:58:27 +10:00
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
KVM: PPC: Book3S: 64-bit CONFIG_RELOCATABLE support for interrupts
2017-01-31 19:07:39 +11:00
book3s_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_xics.h
KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller
2017-04-27 21:37:29 +10:00
book3s_xive_template.c
KVM: PPC: Book3S HV: Add missing barriers to XIVE code and document them
2017-08-24 20:02:01 +10:00
book3s_xive.c
KVM: PPC: Book3S: Fix typo in XICS-on-XIVE state saving code
2017-07-03 10:40:22 +02:00
book3s_xive.h
KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller
2017-04-27 21:37:29 +10:00
book3s.c
* ARM: HYP mode stub supports kexec/kdump on 32-bit; improved PMU
2017-05-08 12:37:56 -07:00
book3s.h
kvm: Fix page ageing bugs
2014-09-24 14:07:58 +02:00
booke_emulate.c
KVM: PPC: BOOKE: Emulate debug registers and exception
2014-09-22 10:11:33 +02:00
booke_interrupts.S
KVM: PPC: Remove 440 support
2014-07-28 15:23:15 +02:00
booke.c
KVM: add kvm_request_pending
2017-06-04 16:53:00 +02:00
booke.h
KVM: PPC: Book3e: Add AltiVec support
2014-09-22 10:11:32 +02:00
bookehv_interrupts.S
powerpc/kvm: common sw breakpoint instr across ppc
2014-09-22 10:11:36 +02:00
e500_emulate.c
KVM: PPC: e500: Emulate TMCFG0 TMRN register
2015-10-15 15:58:16 +11:00
e500_mmu_host.c
KVM: PPC: e500: Use kcalloc() in e500_mmu_host_init()
2017-04-20 11:37:55 +10:00
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: Rename jump labels in kvmppc_e500_tlb_init()
2016-09-13 14:32:47 +10:00
e500.c
KVM: PPC: e500: fix handling local_sid_lookup result
2015-10-15 15:58:16 +11:00
e500.h
kvm: rename pfn_t to kvm_pfn_t
2016-01-15 17:56:32 -08:00
e500mc.c
powerpc: Fix misspellings in comments.
2016-03-01 19:27:20 +11:00
emulate_loadstore.c
KVM: PPC: Add MMIO emulation for remaining floating-point instructions
2017-04-20 11:37:44 +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
fpu.S
…
irq.h
KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller
2017-04-27 21:37:29 +10:00
Kconfig
KVM: PPC: Book3S PR: Don't include SPAPR TCE code on non-pseries platforms
2017-05-12 15:32:30 +10:00
Makefile
KVM: PPC: Book3S PR: Don't include SPAPR TCE code on non-pseries platforms
2017-05-12 15:32:30 +10:00
mpic.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
powerpc.c
Merge branch 'kvm-ppc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
2017-07-03 10:41:59 +02:00
timing.c
KVM: PPC: Remove DCR handling
2014-07-28 19:29:15 +02:00
timing.h
KVM: PPC: Remove DCR handling
2014-07-28 19:29:15 +02:00
trace_book3s.h
KVM: PPC: Book3S HV: Tracepoints for KVM HV guest interactions
2014-12-17 13:29:27 +01:00
trace_booke.h
KVM: PPC: BookE: Improve irq inject tracepoint
2014-12-15 13:27:23 +01:00
trace_hv.h
KVM: PPC: Book3S HV: Comment style and print format fixups
2016-11-28 11:48:47 +11:00
trace_pr.h
kvm: rename pfn_t to kvm_pfn_t
2016-01-15 17:56:32 -08:00
trace.h
kvm: powerpc: booke: Move booke related tracepoints to separate header
2013-10-17 15:37:16 +02:00