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| author | Paolo Bonzini <pbonzini@redhat.com> | 2019-07-25 12:59:40 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-08-05 12:55:50 +0200 |
| commit | 57b76bdb20ecb05c87f4e12b7ced66bc03a976c3 (patch) | |
| tree | 93a9e8ab543de097e799f69b513abae2fc30bc68 /arch/x86 | |
| parent | 3e7093d045196b1016517631645e874fe903db7e (diff) | |
| download | lwn-57b76bdb20ecb05c87f4e12b7ced66bc03a976c3.tar.gz lwn-57b76bdb20ecb05c87f4e12b7ced66bc03a976c3.zip | |
x86: kvm: remove useless calls to kvm_para_available
Most code in arch/x86/kernel/kvm.c is called through x86_hyper_kvm, and thus only
runs if KVM has been detected. There is no need to check again for the CPUID
base.
Cc: Sergio Lopez <slp@redhat.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/kvm.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 82caf01b63dd..edd2179ad2da 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -308,9 +308,6 @@ static notrace void kvm_guest_apic_eoi_write(u32 reg, u32 val) static void kvm_guest_cpu_init(void) { - if (!kvm_para_available()) - return; - if (kvm_para_has_feature(KVM_FEATURE_ASYNC_PF) && kvmapf) { u64 pa = slow_virt_to_phys(this_cpu_ptr(&apf_reason)); @@ -625,9 +622,6 @@ static void __init kvm_guest_init(void) { int i; - if (!kvm_para_available()) - return; - paravirt_ops_setup(); register_reboot_notifier(&kvm_pv_reboot_nb); for (i = 0; i < KVM_TASK_SLEEP_HASHSIZE; i++) @@ -847,8 +841,6 @@ asm( */ void __init kvm_spinlock_init(void) { - if (!kvm_para_available()) - return; /* Does host kernel support KVM_FEATURE_PV_UNHALT? */ if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT)) return; |