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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/arch/powerpc/kvm
История
Fabiano Rosas a1d8021d21 KVM: PPC: Book3S HV: Fix "rm_exit" entry in debugfs timings 
[ Upstream commit 9981bace85 ]

At debugfs/kvm/<pid>/vcpu0/timings we show how long each part of the
code takes to run:

$ cat /sys/kernel/debug/kvm/*-*/vcpu0/timings
rm_entry: 123785 49398892 118 4898
rm_intr: 123780 6075890 22 390
rm_exit: 0 0 0 0                     <-- NOK
guest: 123780 46732919988 402 9997638
cede: 0 0 0 0                        <-- OK, no cede napping in P9

The "rm_exit" is always showing zero because it is the last one and
end_timing does not increment the counter of the previous entry.

We can fix it by calling accumulate_time again instead of
end_timing. That way the counter gets incremented. The rest of the
arithmetic can be ignored because there are no timing points after
this and the accumulators are reset before the next round.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220525130554.2614394-2-farosas@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2022-08-25 11:40:40 +02:00
..
Kconfig powerpc/kvm: Remove obsolete and unneeded select 2021-08-20 12:37:18 +10:00
Makefile KVM: stats: Add fd-based API to read binary stats data 2021-06-24 11:47:57 -04:00
book3s.c KVM: stats: Add halt_wait_ns stats for all architectures 2021-08-20 16:06:33 -04:00
book3s.h KVM: PPC: Book3S PR: Declare kvmppc_handle_exit_pr() 2021-08-20 22:17:38 +10:00
book3s_32_mmu.c KVM: PPC: Use fallthrough; 2020-03-19 16:39:52 +11:00
book3s_32_mmu_host.c powerpc/32s: move CTX_TO_VSID() into mmu-hash.h 2021-06-17 00:09:08 +10:00
book3s_32_sr.S KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context() 2022-05-18 10:26:53 +02:00
book3s_64_entry.S powerpc/64: Fix build failure with allyesconfig in book3s_64_entry.S 2022-04-13 20:59:28 +02:00
book3s_64_mmu.c KVM: PPC: Book3S PR: Remove unused variable 2021-08-20 22:17:41 +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: Stop exporting symbols from book3s_64_mmu_radix 2021-08-24 23:14:06 +10:00
book3s_64_slb.S
…
book3s_64_vio.c KVM: PPC: Fix TCE handling for VFIO 2022-04-27 14:38:59 +02:00
book3s_64_vio_hv.c KVM: PPC: Fix TCE handling for VFIO 2022-04-27 14:38:59 +02:00
book3s_emulate.c powerpc/32s: Change mfsrin() into a static inline function 2021-02-09 01:10:15 +11:00
book3s_exports.c
…
book3s_hv.c KVM: PPC: Book3S HV Nested: L2 LPCR should inherit L1 LPES setting 2022-06-09 10:22:42 +02:00
book3s_hv_builtin.c powerpc/powernv/kvm: Use darn for H_RANDOM on Power9 2022-08-17 14:24:25 +02:00
book3s_hv_hmi.c
…
book3s_hv_interrupts.S KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path 2021-06-10 22:12:15 +10:00
book3s_hv_nested.c KVM: PPC: Book3S HV Nested: L2 LPCR should inherit L1 LPES setting 2022-06-09 10:22:42 +02:00
book3s_hv_p9_entry.c KVM: PPC: Book3S HV: Fix "rm_exit" entry in debugfs timings 2022-08-25 11:40:40 +02:00
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 ARM: 2021-06-28 15:40:51 -07:00
book3s_hv_rm_xics.c powerpc/powernv/pci: Rework pnv_opal_pci_msi_eoi() 2021-08-10 23:15:01 +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 powerpc: flexible GPR range save/restore macros 2022-07-12 16:35:02 +02:00
book3s_hv_tm.c KVM: PPC: Book3S HV Nested: Fix TM softpatch HFAC interrupt emulation 2021-08-25 16:37:17 +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_uvmem.c KVM: use __vcalloc for very large allocations 2022-07-12 16:35:02 +02:00
book3s_interrupts.S PPC KVM update for 5.9 2020-08-09 13:24:02 -04:00
book3s_mmu_hpte.c
…
book3s_paired_singles.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
book3s_pr.c powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
book3s_pr_papr.c KVM: stats: Separate generic stats from architecture specific ones 2021-06-24 11:47:56 -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: Book3S: Fix H_RTAS rets buffer overflow 2021-07-23 16:14:31 +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 powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
book3s_xics.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_xive.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
book3s_xive.h KVM: PPC: Book3S HV: XIVE: Add support for automatic save-restore 2021-08-10 23:15:02 +10:00
book3s_xive_native.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
book3s_xive_template.c powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_EOI_FW 2020-12-11 09:53:10 +11:00
booke.c KVM: PPC: Tick accounting should defer vtime accounting 'til after IRQ handling 2021-11-18 19:15:57 +01:00
booke.h KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
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
bookehv_interrupts.S KVM: PPC: Clean up redundant kvm_run parameters in assembly 2020-07-23 15:50:01 +10:00
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
e500_emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
e500_mmu.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
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
e500mc.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
emulate_loadstore.c MIPS: 2020-06-12 11:05:52 -07:00
fpu.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
irq.h
…
mpic.c KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
powerpc.c KVM: PPC: Fix vmx/vsx mixup in mmio emulation 2022-04-08 14:23:26 +02:00
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
…
trace.h
…
trace_book3s.h
…
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
…