From 7837699fa6d7adf81f26ab73a5f6897ea1ab9d6a Mon Sep 17 00:00:00 2001 From: Sheng Yang Date: Mon, 28 Jan 2008 05:10:22 +0800 Subject: KVM: In kernel PIT model The patch moves the PIT model from userspace to kernel, and increases the timer accuracy greatly. [marcelo: make last_injected_time per-guest] Signed-off-by: Sheng Yang Signed-off-by: Marcelo Tosatti Tested-and-Acked-by: Alex Davis Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 1 + include/linux/kvm.h | 2 ++ 2 files changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 49ced21e029..26a313a0947 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -298,6 +298,7 @@ struct kvm_arch{ struct list_head active_mmu_pages; struct kvm_pic *vpic; struct kvm_ioapic *vioapic; + struct kvm_pit *vpit; int round_robin_prev_vcpu; unsigned int tss_addr; diff --git a/include/linux/kvm.h b/include/linux/kvm.h index e92e70324ea..cefa9a2c7b8 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -236,6 +236,7 @@ struct kvm_vapic_addr { #define KVM_CAP_CLOCKSOURCE 8 #define KVM_CAP_NR_VCPUS 9 /* returns max vcpus per vm */ #define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */ +#define KVM_CAP_PIT 11 /* * ioctls for VM fds @@ -258,6 +259,7 @@ struct kvm_vapic_addr { #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level) #define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip) #define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip) +#define KVM_CREATE_PIT _IO(KVMIO, 0x64) /* * ioctls for vcpu fds -- cgit v1.2.3