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KVM: VMX: Introduce KVM_SET_IDENTITY_MAP_ADDR ioctl

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Now KVM allow guest to modify guest's physical address of EPT's identity mapping page.

(change from v1, discard unnecessary check, change ioctl to accept parameter
address rather than value)

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Sheng Yang
2009-07-21 10:42:48 +08:00
committed by Avi Kivity
parent b792c344df
commit b927a3cec0
4 changed files with 32 additions and 5 deletions
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2
include/linux/kvm.h
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@@ -435,6 +435,7 @@ struct kvm_ioeventfd {
#define KVM_CAP_PIT_STATE2 35
#endif
#define KVM_CAP_IOEVENTFD 36
#define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
#ifdef KVM_CAP_IRQ_ROUTING
@@ -512,6 +513,7 @@ struct kvm_irqfd {
#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\
struct kvm_userspace_memory_region)
#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
/* Device model IOC */
#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)