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linux/arch/powerpc/kvm
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Michael Ellerman da3bb206c9 KVM: PPC: Book3S HV: Fix kvm_unmap_gfn_range_hv() for Hash MMU 
Commit 32b48bf851 ("KVM: PPC: Book3S HV: Fix conversion to gfn-based
MMU notifier callbacks") fixed kvm_unmap_gfn_range_hv() by adding a for
loop over each gfn in the range.

But for the Hash MMU it repeatedly calls kvm_unmap_rmapp() with the
first gfn of the range, rather than iterating through the range.

This exhibits as strange guest behaviour, sometimes crashing in firmare,
or booting and then guest userspace crashing unexpectedly.

Fix it by passing the iterator, gfn, to kvm_unmap_rmapp().

Fixes: 32b48bf851 ("KVM: PPC: Book3S HV: Fix conversion to gfn-based MMU notifier callbacks")
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210511105459.800788-1-mpe@ellerman.id.au
2021-05-12 11:07:39 +10:00
..
book3s_32_mmu_host.c KVM: PPC: Book3S PR: Move kvmppc_mmu_init() into PR KVM 2020-03-19 16:39:52 +11:00
book3s_32_mmu.c KVM: PPC: Use fallthrough; 2020-03-19 16:39:52 +11:00
book3s_32_sr.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_64_mmu_host.c powerpc/kvm: Fix build error when PPC_MEM_KEYS/PPC_PSERIES=n 2021-04-27 10:48:37 +10:00
book3s_64_mmu_hv.c KVM: PPC: Book3S HV: Fix kvm_unmap_gfn_range_hv() for Hash MMU 2021-05-12 11:07:39 +10:00
book3s_64_mmu_radix.c KVM: PPC: Book3S HV: Fix conversion to gfn-based MMU notifier callbacks 2021-05-06 00:25:42 +10:00
book3s_64_mmu.c KVM: PPC: Use fallthrough; 2020-03-19 16:39:52 +11:00
book3s_64_slb.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_64_vio_hv.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
book3s_64_vio.c KVM: PPC: Book3S: Fix symbol undeclared warnings 2020-09-22 11:53:55 +10:00
book3s_emulate.c powerpc/32s: Change mfsrin() into a static inline function 2021-02-09 01:10:15 +11:00
book3s_exports.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_hv_builtin.c KVM: PPC: Book3S HV: Ensure MSR[HV] is always clear in guest MSR 2021-04-12 13:36:24 +10:00
book3s_hv_hmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
book3s_hv_interrupts.S KVM: PPC: Book3S HV: Set LPCR[HDICE] before writing HDEC 2020-09-17 11:38:17 +10:00
book3s_hv_nested.c KVM: PPC: Book3S HV: Ensure MSR[HV] is always clear in guest MSR 2021-04-12 13:36:24 +10:00
book3s_hv_ras.c KVM: PPC: Book3S HV: Don't attempt to recover machine checks for FWNMI enabled guests 2020-12-04 01:01:23 +11:00
book3s_hv_rm_mmu.c KVM: PPC: Book3S HV: remove unused kvmppc_h_protect argument 2021-04-12 13:36:23 +10:00
book3s_hv_rm_xics.c KVM: PPC: Book3S: Fix symbol undeclared warnings 2020-09-22 11:53:55 +10:00
book3s_hv_rm_xive.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
book3s_hv_rmhandlers.S KVM: PPC: Book3S HV: Fix host radix SLB optimisation with hash guests 2021-02-11 17:28:15 +11:00
book3s_hv_tm_builtin.c KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones 2020-03-19 16:39:52 +11:00
book3s_hv_tm.c KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones 2020-03-19 16:39:52 +11:00
book3s_hv_uvmem.c mm/memremap_pages: support multiple ranges per invocation 2020-10-13 18:38:28 -07:00
book3s_hv.c ARM: 2021-05-01 10:14:08 -07:00
book3s_interrupts.S PPC KVM update for 5.9 2020-08-09 13:24:02 -04:00
book3s_mmu_hpte.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_paired_singles.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
book3s_pr_papr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_pr.c KVM: PPC: Convert to the gfn-based MMU notifier callbacks 2021-04-17 08:31:07 -04:00
book3s_rmhandlers.S powerpc: Replace RFI by rfi on book3s/32 and booke 2020-11-19 16:56:54 +11:00
book3s_rtas.c KVM: PPC: Protect kvm_vcpu_read_guest with srcu locks 2020-07-21 15:38:03 +10:00
book3s_segment.S powerpc/64s/exception: Move KVM test to common code 2020-04-01 13:42:11 +11:00
book3s_xics.c KVM: PPC: Book3S: Assign boolean values to a bool variable 2020-12-15 22:22:06 +11:00
book3s_xics.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_xive_native.c powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_SHIFT_BUG 2020-12-11 09:53:10 +11:00
book3s_xive_template.c powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_EOI_FW 2020-12-11 09:53:10 +11:00
book3s_xive.c powerpc/xive: Assign boolean values to a bool variable 2021-02-11 23:35:06 +11:00
book3s_xive.h KVM: PPC: Book3S HV: XIVE: Add a comment regarding VP numbering 2020-12-11 09:53:11 +11:00
book3s.c KVM: PPC: Convert to the gfn-based MMU notifier callbacks 2021-04-17 08:31:07 -04:00
book3s.h KVM: PPC: Convert to the gfn-based MMU notifier callbacks 2021-04-17 08:31:07 -04:00
booke_emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
booke_interrupts.S KVM: PPC: Clean up redundant kvm_run parameters in assembly 2020-07-23 15:50:01 +10:00
booke.c powerpc updates for 5.12 2021-02-22 14:34:00 -08:00
booke.h KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
bookehv_interrupts.S KVM: PPC: Clean up redundant kvm_run parameters in assembly 2020-07-23 15:50:01 +10:00
e500_emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
e500_mmu_host.c KVM: PPC: Convert to the gfn-based MMU notifier callbacks 2021-04-17 08:31:07 -04:00
e500_mmu_host.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
e500_mmu.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
e500.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
e500.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
e500mc.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
emulate_loadstore.c MIPS: 2020-06-12 11:05:52 -07:00
emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
fpu.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
irq.h
Kconfig powerpc/kvm: Force selection of CONFIG_PPC_FPU 2021-01-30 11:39:32 +11:00
Makefile KVM: PPC: Book3S HV: Support for running secure guests 2019-11-28 16:30:02 +11:00
mpic.c KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
powerpc.c powerpc updates for 5.12 2021-02-22 14:34:00 -08:00
timing.c powerpc/kvm: no need to check return value of debugfs_create functions 2020-03-04 22:44:25 +11:00
timing.h KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
tm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
trace_book3s.h KVM: PPC: Book3S: Simplify external interrupt handling 2018-10-09 16:04:27 +11:00
trace_booke.h KVM: Move arm64's MMU notifier trace events to generic code 2021-04-17 08:30:56 -04:00
trace_hv.h KVM: PPC: Fix typo on H_DISABLE_AND_GET hcall 2020-07-23 17:43:35 +10:00
trace_pr.h KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE 2018-11-07 23:04:38 +11:00
trace.h KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE 2018-11-07 23:04:38 +11:00