[Xen-changelog] [xen-unstable] nestedsvm: fix shadow-on-hap

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Christoph Egger <Christoph.Egger@xxxxxxx>
# Date 1305187655 -3600
# Node ID 1e29db7a3b6bcae442676ed52f574434cfe0aba7
# Parent  19d6541c4abec3486c83de76102ec46d7fe22a16
nestedsvm: fix shadow-on-hap

Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>
Acked-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
---


diff -r 19d6541c4abe -r 1e29db7a3b6b xen/arch/x86/hvm/svm/entry.S
--- a/xen/arch/x86/hvm/svm/entry.S      Thu May 12 09:00:46 2011 +0100
+++ b/xen/arch/x86/hvm/svm/entry.S      Thu May 12 09:07:35 2011 +0100
@@ -65,12 +65,16 @@
         testl $~0,(r(dx),r(ax),1)
         jnz  .Lsvm_process_softirqs
 
+        testb $0, VCPU_nsvm_hap_enabled(r(bx))
+        jz  .Lsvm_asid_handle
+        
         mov  VCPU_nhvm_p2m(r(bx)),r(ax)
         test r(ax),r(ax)
         sete %al
         andb VCPU_nhvm_guestmode(r(bx)),%al
         jnz  .Lsvm_nsvm_no_p2m
 
+.Lsvm_asid_handle:
         call svm_asid_handle_vmrun
 
         cmpb $0,addr_of(tb_init_done)
diff -r 19d6541c4abe -r 1e29db7a3b6b xen/arch/x86/hvm/svm/nestedsvm.c
--- a/xen/arch/x86/hvm/svm/nestedsvm.c  Thu May 12 09:00:46 2011 +0100
+++ b/xen/arch/x86/hvm/svm/nestedsvm.c  Thu May 12 09:07:35 2011 +0100
@@ -494,6 +494,7 @@
         /* host nested paging + guest shadow paging. */
         n2vmcb->_np_enable = 1;
         /* Keep h_cr3 as it is. */
+        n2vmcb->_h_cr3 = n1vmcb->_h_cr3;
         /* When l1 guest does shadow paging
          * we assume it intercepts page faults.
          */
diff -r 19d6541c4abe -r 1e29db7a3b6b xen/arch/x86/x86_32/asm-offsets.c
--- a/xen/arch/x86/x86_32/asm-offsets.c Thu May 12 09:00:46 2011 +0100
+++ b/xen/arch/x86/x86_32/asm-offsets.c Thu May 12 09:07:35 2011 +0100
@@ -95,6 +95,7 @@
 
     OFFSET(VCPU_nhvm_guestmode, struct vcpu, arch.hvm_vcpu.nvcpu.nv_guestmode);
     OFFSET(VCPU_nhvm_p2m, struct vcpu, arch.hvm_vcpu.nvcpu.nv_p2m);
+    OFFSET(VCPU_nsvm_hap_enabled, struct vcpu, 
arch.hvm_vcpu.nvcpu.u.nsvm.ns_hap_enabled);
     BLANK();
 
     OFFSET(VMCB_rax, struct vmcb_struct, rax);
diff -r 19d6541c4abe -r 1e29db7a3b6b xen/arch/x86/x86_64/asm-offsets.c
--- a/xen/arch/x86/x86_64/asm-offsets.c Thu May 12 09:00:46 2011 +0100
+++ b/xen/arch/x86/x86_64/asm-offsets.c Thu May 12 09:07:35 2011 +0100
@@ -117,6 +117,7 @@
 
     OFFSET(VCPU_nhvm_guestmode, struct vcpu, arch.hvm_vcpu.nvcpu.nv_guestmode);
     OFFSET(VCPU_nhvm_p2m, struct vcpu, arch.hvm_vcpu.nvcpu.nv_p2m);
+    OFFSET(VCPU_nsvm_hap_enabled, struct vcpu, 
arch.hvm_vcpu.nvcpu.u.nsvm.ns_hap_enabled);
     BLANK();
 
     OFFSET(DOMAIN_is_32bit_pv, struct domain, arch.is_32bit_pv);

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