From: Christoph Egger <Christoph.Egger@amd.com>
To: xen-devel@lists.xensource.com
Subject: Re: [PATCH] nestedsvm: fix shadow-on-hap
Date: Wed, 11 May 2011 15:26:55 +0200 [thread overview]
Message-ID: <4DCA8E9F.3080706@amd.com> (raw)
In-Reply-To: <4DCA86AF.6050207@amd.com>
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On 05/11/11 14:53, Christoph Egger wrote:
>
> Hi,
>
> attached patch lets l2 guest actually run with shadow-on-hap.
>
> Signed-off-by: Christoph Egger<Christoph.Egger@amd.com>
>
>
New version. Old version missed some hunks to compile. Sorry about this.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
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diff -r 0c60c61ff836 xen/arch/x86/hvm/svm/entry.S
--- a/xen/arch/x86/hvm/svm/entry.S Tue May 10 11:42:02 2011 +0200
+++ b/xen/arch/x86/hvm/svm/entry.S Wed May 11 15:24:00 2011 +0200
@@ -65,12 +65,16 @@ ENTRY(svm_asm_do_resume)
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 0c60c61ff836 xen/arch/x86/hvm/svm/nestedsvm.c
--- a/xen/arch/x86/hvm/svm/nestedsvm.c Tue May 10 11:42:02 2011 +0200
+++ b/xen/arch/x86/hvm/svm/nestedsvm.c Wed May 11 15:24:00 2011 +0200
@@ -546,6 +547,7 @@ static int nsvm_vmcb_prepare4vmrun(struc
/* 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 0c60c61ff836 xen/arch/x86/x86_32/asm-offsets.c
--- a/xen/arch/x86/x86_32/asm-offsets.c Tue May 10 11:42:02 2011 +0200
+++ b/xen/arch/x86/x86_32/asm-offsets.c Wed May 11 15:24:00 2011 +0200
@@ -95,6 +95,7 @@ void __dummy__(void)
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 0c60c61ff836 xen/arch/x86/x86_64/asm-offsets.c
--- a/xen/arch/x86/x86_64/asm-offsets.c Tue May 10 11:42:02 2011 +0200
+++ b/xen/arch/x86/x86_64/asm-offsets.c Wed May 11 15:24:00 2011 +0200
@@ -117,6 +117,7 @@ void __dummy__(void)
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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next prev parent reply other threads:[~2011-05-11 13:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-11 12:53 [PATCH] nestedsvm: fix shadow-on-hap Christoph Egger
2011-05-11 13:26 ` Christoph Egger [this message]
2011-05-11 16:11 ` Tim Deegan
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