diff options
| author | Sheng Yang <sheng.yang@intel.com> | 2008-01-27 22:10:22 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-04-27 11:00:21 +0200 |
| commit | 7837699fa6d7adf81f26ab73a5f6897ea1ab9d6a (patch) | |
| tree | 37a89d5c10869a9ada59df75b49d685708661434 /include | |
| parent | KVM: Remove pointless desc_ptr #ifdef (diff) | |
| download | linux-7837699fa6d7adf81f26ab73a5f6897ea1ab9d6a.tar.xz linux-7837699fa6d7adf81f26ab73a5f6897ea1ab9d6a.zip | |
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 <sheng.yang@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Tested-and-Acked-by: Alex Davis <alex14641@yahoo.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/kvm_host.h | 1 | ||||
| -rw-r--r-- | include/linux/kvm.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 49ced21e0290..26a313a09472 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 e92e70324ea1..cefa9a2c7b89 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 |