search for: config_kvm_iodelay

...bool "KVM PV MMU support" depends on KVM_GUEST diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 7e0207f..be182e6 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -29,15 +29,6 @@ #include <linux/hardirq.h> #include <asm/timer.h> -#ifdef CONFIG_KVM_IODELAY -/* - * No need for any "IO delay" on KVM - */ -static void kvm_io_delay(void) -{ -} -#endif /* CONFIG_KVM_IODELAY */ - #ifdef CONFIG_KVM_MMU #define MMU_QUEUE_SIZE 1024 @@ -201,13 +192,12 @@ static void kvm_leave_lazy_mmu(void) static void __init paravirt_ops_setup(void) { + ext...

...bool "KVM PV MMU support" depends on KVM_GUEST diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 7e0207f..be182e6 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -29,15 +29,6 @@ #include <linux/hardirq.h> #include <asm/timer.h> -#ifdef CONFIG_KVM_IODELAY -/* - * No need for any "IO delay" on KVM - */ -static void kvm_io_delay(void) -{ -} -#endif /* CONFIG_KVM_IODELAY */ - #ifdef CONFIG_KVM_MMU #define MMU_QUEUE_SIZE 1024 @@ -201,13 +192,12 @@ static void kvm_leave_lazy_mmu(void) static void __init paravirt_ops_setup(void) { + ext...

Paravirt ops is currently only capable of either replacing a lot of Linux internal code or none at all. The are users that don't need all of the possibilities pv-ops delivers though. On KVM for example we're perfectly fine not using the PV MMU, thus not touching any MMU code. That way we don't have to improve pv-ops to become fast, we just don't compile the MMU parts in! This

Paravirt ops is currently only capable of either replacing a lot of Linux internal code or none at all. The are users that don't need all of the possibilities pv-ops delivers though. On KVM for example we're perfectly fine not using the PV MMU, thus not touching any MMU code. That way we don't have to improve pv-ops to become fast, we just don't compile the MMU parts in! This