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authorJoerg Roedel <joerg.roedel@amd.com>2010-09-10 17:30:50 +0200
committerAvi Kivity <avi@redhat.com>2010-10-24 10:52:36 +0200
commit6539e738f65a8f1fc7806295d5d701fba4008343 (patch)
tree7b66b9d2c28eae8a332cdb1da0e602357b0cbeda /arch/x86/include/asm/kvm_host.h
parent14dfe855f978181cd611ec018e5ceba860a98545 (diff)
downloadtalos-obmc-linux-6539e738f65a8f1fc7806295d5d701fba4008343.tar.gz
talos-obmc-linux-6539e738f65a8f1fc7806295d5d701fba4008343.zip
KVM: MMU: Implement nested gva_to_gpa functions
This patch adds the functions to do a nested l2_gva to l1_gpa page table walk. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
-rw-r--r--arch/x86/include/asm/kvm_host.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 1b3eb8a0a1bc..8ec3547c433d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -296,6 +296,16 @@ struct kvm_vcpu_arch {
struct kvm_mmu mmu;
/*
+ * Paging state of an L2 guest (used for nested npt)
+ *
+ * This context will save all necessary information to walk page tables
+ * of the an L2 guest. This context is only initialized for page table
+ * walking and not for faulting since we never handle l2 page faults on
+ * the host.
+ */
+ struct kvm_mmu nested_mmu;
+
+ /*
* Pointer to the mmu context currently used for
* gva_to_gpa translations.
*/
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