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From: Qing He <qing.he@intel.com>
To: xen-devel@lists.xensource.com
Cc: Qing He <qing.he@intel.com>
Subject: [PATCH 09/16] vmx: nest: shadow controls
Date: Wed,  8 Sep 2010 23:22:17 +0800	[thread overview]
Message-ID: <1283959344-3837-10-git-send-email-qing.he@intel.com> (raw)
In-Reply-To: <1283959344-3837-1-git-send-email-qing.he@intel.com>

automatically compute controls according to current mode

Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Eddie Dong <eddie.dong@intel.com>

---

diff -r 625f74a9bb36 xen/arch/x86/hvm/vmx/nest.c
--- a/xen/arch/x86/hvm/vmx/nest.c	Wed Sep 08 22:04:16 2010 +0800
+++ b/xen/arch/x86/hvm/vmx/nest.c	Wed Sep 08 22:07:15 2010 +0800
@@ -663,3 +663,35 @@
 {
     return vmx_nest_handle_vmresume(regs);
 }
+
+static void set_shadow_control(struct vmx_nest_struct *nest,
+                               unsigned int field,
+                               u32 host_value)
+{
+    u32 value;
+
+    value = (u32) __get_vvmcs(nest->vvmcs, field) | host_value;
+    __vmwrite(field, value);
+}
+
+void vmx_nest_update_exec_control(struct vcpu *v, unsigned long value)
+{
+    struct vmx_nest_struct *nest = &v->arch.hvm_vmx.nest;
+
+    set_shadow_control(nest, CPU_BASED_VM_EXEC_CONTROL, value);
+}
+
+void vmx_nest_update_secondary_exec_control(struct vcpu *v,
+                                            unsigned long value)
+{
+    struct vmx_nest_struct *nest = &v->arch.hvm_vmx.nest;
+
+    set_shadow_control(nest, SECONDARY_VM_EXEC_CONTROL, value);
+}
+
+void vmx_nest_update_exception_bitmap(struct vcpu *v, unsigned long value)
+{
+    struct vmx_nest_struct *nest = &v->arch.hvm_vmx.nest;
+
+    set_shadow_control(nest, EXCEPTION_BITMAP, value);
+}
diff -r 625f74a9bb36 xen/arch/x86/hvm/vmx/vmx.c
--- a/xen/arch/x86/hvm/vmx/vmx.c	Wed Sep 08 22:04:16 2010 +0800
+++ b/xen/arch/x86/hvm/vmx/vmx.c	Wed Sep 08 22:07:15 2010 +0800
@@ -387,18 +387,28 @@
 
 void vmx_update_cpu_exec_control(struct vcpu *v)
 {
-    __vmwrite(CPU_BASED_VM_EXEC_CONTROL, v->arch.hvm_vmx.exec_control);
+    if ( v->arch.hvm_vcpu.in_nesting )
+        vmx_nest_update_exec_control(v, v->arch.hvm_vmx.exec_control);
+    else
+        __vmwrite(CPU_BASED_VM_EXEC_CONTROL, v->arch.hvm_vmx.exec_control);
 }
 
 void vmx_update_secondary_exec_control(struct vcpu *v)
 {
-    __vmwrite(SECONDARY_VM_EXEC_CONTROL,
-              v->arch.hvm_vmx.secondary_exec_control);
+    if ( v->arch.hvm_vcpu.in_nesting )
+        vmx_nest_update_secondary_exec_control(v,
+            v->arch.hvm_vmx.secondary_exec_control);
+    else
+        __vmwrite(SECONDARY_VM_EXEC_CONTROL,
+                  v->arch.hvm_vmx.secondary_exec_control);
 }
 
 void vmx_update_exception_bitmap(struct vcpu *v)
 {
-    __vmwrite(EXCEPTION_BITMAP, v->arch.hvm_vmx.exception_bitmap);
+    if ( v->arch.hvm_vcpu.in_nesting )
+        vmx_nest_update_exception_bitmap(v, v->arch.hvm_vmx.exception_bitmap);
+    else
+        __vmwrite(EXCEPTION_BITMAP, v->arch.hvm_vmx.exception_bitmap);
 }
 
 static int vmx_guest_x86_mode(struct vcpu *v)
diff -r 625f74a9bb36 xen/include/asm-x86/hvm/vmx/nest.h
--- a/xen/include/asm-x86/hvm/vmx/nest.h	Wed Sep 08 22:04:16 2010 +0800
+++ b/xen/include/asm-x86/hvm/vmx/nest.h	Wed Sep 08 22:07:15 2010 +0800
@@ -69,4 +69,9 @@
 int vmx_nest_handle_vmresume(struct cpu_user_regs *regs);
 int vmx_nest_handle_vmlaunch(struct cpu_user_regs *regs);
 
+void vmx_nest_update_exec_control(struct vcpu *v, unsigned long value);
+void vmx_nest_update_secondary_exec_control(struct vcpu *v,
+                                            unsigned long value);
+void vmx_nest_update_exception_bitmap(struct vcpu *v, unsigned long value);
+
 #endif /* __ASM_X86_HVM_NEST_H__ */

  parent reply	other threads:[~2010-09-08 15:22 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-08 15:22 [PATCH 00/16] Nested virtualization for VMX Qing He
2010-09-08 15:22 ` [PATCH 01/16] vmx: nest: rename host_vmcs Qing He
2010-09-10 13:27   ` Christoph Egger
2010-09-08 15:22 ` [PATCH 02/16] vmx: nest: wrapper for control update Qing He
2010-09-10 13:29   ` Christoph Egger
2010-09-08 15:22 ` [PATCH 03/16] vmx: nest: nested availability and status flags Qing He
2010-09-15 11:43   ` Christoph Egger
2010-09-15 14:18     ` Dong, Eddie
2010-09-08 15:22 ` [PATCH 04/16] vmx: nest: nested control structure Qing He
2010-09-09  6:13   ` Dong, Eddie
2010-09-15 11:27   ` Christoph Egger
2010-09-15 13:06     ` Dong, Eddie
2010-09-15 13:17       ` Christoph Egger
2010-09-15 13:31         ` Christoph Egger
2010-09-15 13:46           ` Dong, Eddie
2010-09-15 14:02             ` Christoph Egger
2010-09-08 15:22 ` [PATCH 05/16] vmx: nest: virtual vmcs layout Qing He
2010-09-13 10:29   ` Tim Deegan
2010-09-08 15:22 ` [PATCH 06/16] vmx: nest: handling VMX instruction exits Qing He
2010-09-10  7:05   ` Dong, Eddie
2010-09-13 11:11     ` Tim Deegan
2010-09-13 14:29       ` Dong, Eddie
2010-09-13 14:46         ` Tim Deegan
2010-09-13 11:10   ` Tim Deegan
2010-09-15  4:55     ` Dong, Eddie
2010-09-15  6:40       ` Keir Fraser
2010-09-15  6:49         ` Dong, Eddie
2010-09-15  7:31           ` Keir Fraser
2010-09-15  8:15             ` Christoph Egger
2010-09-15  8:23               ` Keir Fraser
2010-09-15  9:08                 ` Dong, Eddie
2010-09-15 11:39                   ` Keir Fraser
2010-09-15 12:36                     ` Dong, Eddie
2010-09-15 13:12                       ` Keir Fraser
2010-09-20  3:13                         ` Dong, Eddie
2010-09-20  8:08                           ` Keir Fraser
2010-09-20  9:33                             ` Dong, Eddie
2010-09-20  9:41                               ` Keir Fraser
2010-09-20 13:10                                 ` Dong, Eddie
2010-09-20  9:41                             ` Christoph Egger
2010-09-20 13:14                               ` Dong, Eddie
2010-09-15  7:17         ` Qing He
2010-09-15  7:38           ` Keir Fraser
2010-09-15  7:56             ` Dong, Eddie
2010-09-15  8:15               ` Keir Fraser
2010-09-15  9:26                 ` Tim Deegan
2010-09-15  9:56                   ` Dong, Eddie
2010-09-15 11:46                     ` Keir Fraser
2010-09-08 15:22 ` [PATCH 07/16] vmx: nest: switch current vmcs Qing He
2010-09-08 15:22 ` [PATCH 08/16] vmx: nest: vmresume/vmlaunch Qing He
2010-09-15  9:52   ` Christoph Egger
2010-09-15 11:30     ` Christoph Egger
2010-09-20  5:19       ` Dong, Eddie
2010-09-08 15:22 ` Qing He [this message]
2010-09-08 15:22 ` [PATCH 10/16] vmx: nest: L1 <-> L2 context switch Qing He
2010-09-08 15:22 ` [PATCH 11/16] vmx: nest: interrupt handling Qing He
2010-09-08 15:22 ` [PATCH 12/16] vmx: nest: VMExit handler in L2 Qing He
2010-09-08 15:22 ` [PATCH 13/16] vmx: nest: L2 tsc Qing He
2010-09-08 15:22 ` [PATCH 14/16] vmx: nest: CR0.TS and #NM Qing He
2010-09-08 15:22 ` [PATCH 15/16] vmx: nest: capability reporting MSRs Qing He
2010-09-13 12:45   ` Tim Deegan
2010-09-15 10:05   ` Christoph Egger
2010-09-15 14:28     ` Dong, Eddie
2010-09-15 14:45       ` Christoph Egger
2010-09-16 14:10         ` Dong, Eddie
2010-09-08 15:22 ` [PATCH 16/16] vmx: nest: expose cpuid and CR4.VMXE Qing He
2010-09-15  9:43   ` Christoph Egger
2010-09-13 13:10 ` [PATCH 00/16] Nested virtualization for VMX Tim Deegan

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