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413679e73b
linux/arch/powerpc/kvm
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Nicholas Piggin 413679e73b KVM: PPC: Book3S HV P9: Move setting HDEC after switching to guest LPCR 
LPCR[HDICE]=0 suppresses hypervisor decrementer exceptions on some
processors, so it must be enabled before HDEC is set.

Rather than set it in the host LPCR then setting HDEC, move the HDEC
update to after the guest MMU context (including LPCR) is loaded.
There shouldn't be much concern with delaying HDEC by some 10s or 100s
of nanoseconds by setting it a bit later.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210528090752.3542186-10-npiggin@gmail.com
2021-06-10 22:12:12 +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_entry.S KVM: PPC: Book3S 64: Minimise hcall handler calling convention differences 2021-06-10 22:12:12 +10:00
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 P9: implement kvmppc_xive_pull_vcpu in C 2021-06-10 22:12:12 +10:00
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 KVM: PPC: Book3S HV P9: Move setting HDEC after switching to guest LPCR 2021-06-10 22:12:12 +10:00
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 KVM: PPC: Book3S 64: move bad_host_intr check to HV handler 2021-06-10 22:12:12 +10:00
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 KVM: PPC: Book3S HV P9: implement kvmppc_xive_pull_vcpu in C 2021-06-10 22:12:12 +10:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig powerpc/kvm: Force selection of CONFIG_PPC_FPU 2021-01-30 11:39:32 +11:00
Makefile KVM: PPC: Book3S 64: move KVM interrupt entry to a common entry point 2021-06-10 22:12:01 +10:00
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