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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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arch/x86/include/asm/kvm_host.h
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@@ -411,6 +411,7 @@ struct kvm_arch{
struct page *ept_identity_pagetable;
bool ept_identity_pagetable_done;
gpa_t ept_identity_map_addr;
unsigned long irq_sources_bitmap;
unsigned long irq_states[KVM_IOAPIC_NUM_PINS];