Re: [PATCH RFC V4 4/5] kvm : pv-ticketlocks support for linux guests running on KVM hypervisor
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On 01/16/2012 08:42 AM, Alexander Graf wrote:
On 14.01.2012, at 19:26, Raghavendra K T wrote:Extends Linux guest running on KVM hypervisor to support pv-ticketlocks. During smp_boot_cpus paravirtualied KVM guest detects if the hypervisor has required feature (KVM_FEATURE_PVLOCK_KICK) to support pv-ticketlocks. If so, support for pv-ticketlocks is registered via pv_lock_ops. Use KVM_HC_KICK_CPU hypercall to wakeup waiting/halted vcpu. Signed-off-by: Srivatsa Vaddagiri<vatsa@xxxxxxxxxxxxxxxxxx> Signed-off-by: Suzuki Poulose<suzuki@xxxxxxxxxx> Signed-off-by: Raghavendra K T<raghavendra.kt@xxxxxxxxxxxxxxxxxx> --- diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h index 7a94987..cf5327c 100644 --- a/arch/x86/include/asm/kvm_para.h +++ b/arch/x86/include/asm/kvm_para.h @@ -195,10 +195,20 @@ void kvm_async_pf_task_wait(u32 token); void kvm_async_pf_task_wake(u32 token);
+} +#endif /* CONFIG_PARAVIRT_SPINLOCKS */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c7b05fc..4d7a950 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.cThis patch is mixing host and guest code. Please split those up.
Agree. The host code should have gone to patch 2.
Alex@@ -5754,8 +5754,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
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