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| author |   Steven Price <steven.price@arm.com> | 2019-10-24 14:31:11 +0100 |
|---|---|---|
| committer |   Marc Zyngier <maz@kernel.org> | 2019-10-24 14:49:45 +0100 |
| commit | c7892db5dd6afe921ead502aff7440a1e450d947 (patch) | |
| tree | 7805ab4f2d9215e71f0155028819f27bfe73e699 /arch/arm64/kvm | |
| parent | arm64: Retrieve stolen time as paravirtualized guest (diff) | |
| download | linux-dev-c7892db5dd6afe921ead502aff7440a1e450d947.tar.xz linux-dev-c7892db5dd6afe921ead502aff7440a1e450d947.zip | |
KVM: arm64: Select TASK_DELAY_ACCT+TASKSTATS rather than SCHEDSTATS
SCHEDSTATS requires DEBUG_KERNEL (and PROC_FS) and therefore isn't a
good choice for enabling the scheduling statistics required for stolen
time.
Instead match the x86 configuration and select TASK_DELAY_ACCT and
TASKSTATS. This adds the dependencies of NET && MULTIUSER for arm64 KVM.
Suggested-by: Marc Zyngier <maz@kernel.org>
Fixes: 8564d6372a7d ("KVM: arm64: Support stolen time reporting via shared structure")
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/Kconfig | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index d8b88e40d223..a475c68cbfec 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -21,6 +21,8 @@ if VIRTUALIZATION config KVM bool "Kernel-based Virtual Machine (KVM) support" depends on OF + # for TASKSTATS/TASK_DELAY_ACCT: + depends on NET && MULTIUSER select MMU_NOTIFIER select PREEMPT_NOTIFIERS select HAVE_KVM_CPU_RELAX_INTERCEPT @@ -39,7 +41,8 @@ config KVM select IRQ_BYPASS_MANAGER select HAVE_KVM_IRQ_BYPASS select HAVE_KVM_VCPU_RUN_PID_CHANGE - select SCHEDSTATS + select TASKSTATS + select TASK_DELAY_ACCT ---help--- Support hosting virtualized guest machines. We don't support KVM with 16K page tables yet, due to the multiple |