diff options
| -rw-r--r-- | arch/x86/Kconfig | 21 | ||||
| -rw-r--r-- | arch/x86/include/asm/kvm_para.h | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/Makefile | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/kvm.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/setup.c | 2 |
5 files changed, 12 insertions, 20 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8ec3a1aa4ab..a42e2e99caa 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -573,23 +573,18 @@ config PARAVIRT_TIME_ACCOUNTING source "arch/x86/xen/Kconfig" -config KVM_CLOCK - bool "KVM paravirtualized clock" - select PARAVIRT - select PARAVIRT_CLOCK - ---help--- - Turning on this option will allow you to run a paravirtualized clock - when running over the KVM hypervisor. Instead of relying on a PIT - (or probably other) emulation by the underlying device model, the host - provides the guest with timing infrastructure such as time of day, and - system time - config KVM_GUEST - bool "KVM Guest support" + bool "KVM Guest support (including kvmclock)" + select PARAVIRT select PARAVIRT + select PARAVIRT_CLOCK + default y if PARAVIRT_GUEST ---help--- This option enables various optimizations for running under the KVM - hypervisor. + hypervisor. It includes a paravirtualized clock, so that instead + of relying on a PIT (or probably other) emulation by the + underlying device model, the host provides the guest with + timing infrastructure such as time of day, and system time source "arch/x86/lguest/Kconfig" diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h index 20f5697888b..eb3e9d85e1f 100644 --- a/arch/x86/include/asm/kvm_para.h +++ b/arch/x86/include/asm/kvm_para.h @@ -102,14 +102,14 @@ struct kvm_vcpu_pv_apf_data { extern void kvmclock_init(void); extern int kvm_register_clock(char *txt); -#ifdef CONFIG_KVM_CLOCK +#ifdef CONFIG_KVM_GUEST bool kvm_check_and_clear_guest_paused(void); #else static inline bool kvm_check_and_clear_guest_paused(void) { return false; } -#endif /* CONFIG_KVMCLOCK */ +#endif /* CONFIG_KVM_GUEST */ /* This instruction is vmcall. On non-VT architectures, it will generate a * trap that we will then rewrite to the appropriate instruction. diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 8215e5652d9..7203298e0b8 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -81,8 +81,7 @@ obj-$(CONFIG_DEBUG_RODATA_TEST) += test_rodata.o obj-$(CONFIG_DEBUG_NX_TEST) += test_nx.o obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o -obj-$(CONFIG_KVM_GUEST) += kvm.o -obj-$(CONFIG_KVM_CLOCK) += kvmclock.o +obj-$(CONFIG_KVM_GUEST) += kvm.o kvmclock.o obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= paravirt-spinlocks.o obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 1596cc8fd79..b3e5e51bc90 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -397,9 +397,7 @@ void kvm_disable_steal_time(void) #ifdef CONFIG_SMP static void __init kvm_smp_prepare_boot_cpu(void) { -#ifdef CONFIG_KVM_CLOCK WARN_ON(kvm_register_clock("primary cpu clock")); -#endif kvm_guest_cpu_init(); native_smp_prepare_boot_cpu(); } diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index f4b9b80e1b9..b3386ae3438 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -957,7 +957,7 @@ void __init setup_arch(char **cmdline_p) initmem_init(); memblock_find_dma_reserve(); -#ifdef CONFIG_KVM_CLOCK +#ifdef CONFIG_KVM_GUEST kvmclock_init(); #endif |