From: "Yang, Sheng" <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Subject: [PATCH] KVM: VMX: Enable Virtual Processor Identification (VPID)
Date: Thu, 24 Jan 2008 14:26:55 +0800 [thread overview]
Message-ID: <200801241426.55928.sheng.yang@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 7867 bytes --]
From 39551508c869f678f028655c062b3cb5fe4715bc Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date: Thu, 17 Jan 2008 15:14:33 +0800
Subject: [PATCH] KVM: VMX: Enable Virtual Processor Identification (VPID)
To allow TLB entries to be retained across VM entry and VM exit, the VMM can
now identify distinct address spaces through a new virtual-processor ID
(VPID) field of the VMCS.
Signed-off-by: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
arch/x86/kvm/vmx.c | 84
+++++++++++++++++++++++++++++++++++++++++++-
arch/x86/kvm/vmx.h | 6 +++
include/asm-x86/kvm_host.h | 1 +
3 files changed, 90 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 5346e42..4e88f8a 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -37,6 +37,9 @@ MODULE_LICENSE("GPL");
static int bypass_guest_pf = 1;
module_param(bypass_guest_pf, bool, 0);
+static int enable_vpid = 1;
+module_param(enable_vpid, bool, 0);
+
struct vmcs {
u32 revision_id;
u32 abort;
@@ -71,6 +74,7 @@ struct vcpu_vmx {
unsigned rip;
} irq;
} rmode;
+ int vpid;
};
static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
@@ -86,6 +90,9 @@ static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
static struct page *vmx_io_bitmap_a;
static struct page *vmx_io_bitmap_b;
+static DECLARE_BITMAP(vmx_vpid_bitmap, VPID_BITMAP_SIZE / BITS_PER_BYTE);
+static DEFINE_SPINLOCK(vmx_vpid_lock);
+
static struct vmcs_config {
int size;
int order;
@@ -204,6 +211,12 @@ static inline int vm_need_virtualize_apic_accesses(struct
kvm *kvm)
(irqchip_in_kernel(kvm)));
}
+static inline int cpu_has_vmx_vpid(void)
+{
+ return (vmcs_config.cpu_based_2nd_exec_ctrl &
+ SECONDARY_EXEC_ENABLE_VPID);
+}
+
static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
{
int i;
@@ -214,6 +227,25 @@ static int __find_msr_index(struct vcpu_vmx *vmx, u32
msr)
return -1;
}
+static inline void __invvpid(int ext, u16 vpid, gva_t gva)
+{
+ struct {
+ u64 vpid:16;
+ u64 rsvd:48;
+ u64 gva;
+ } operand = {vpid, 0, gva};
+
+ if (!enable_vpid || !cpu_has_vmx_vpid())
+ return;
+
+ asm volatile (ASM_VMX_INVVPID
+ /* CF==1 or ZF==1 --> rc = -1 */
+ "; ja 1f ; ud2 ; 1:\n"
+ :
+ : "a" (&operand), "c" (ext)
+ : "memory");
+}
+
static struct kvm_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr)
{
int i;
@@ -257,6 +289,19 @@ static void vcpu_clear(struct vcpu_vmx *vmx)
vmx->launched = 0;
}
+static inline void vpid_sync_vcpu_all(struct vcpu_vmx *vmx)
+{
+ if (vmx->vpid == 0)
+ return;
+
+ __invvpid(VPID_SYNC_EXTENT_SINGLE_CONTEXT, vmx->vpid, 0);
+}
+
+static inline void vpid_sync_all(void)
+{
+ __invvpid(VPID_SYNC_EXTENT_ALL_CONTEXT, 0, 0);
+}
+
static unsigned long vmcs_readl(unsigned long field)
{
unsigned long value;
@@ -493,6 +538,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
if (vcpu->cpu != cpu) {
vcpu_clear(vmx);
kvm_migrate_apic_timer(vcpu);
+ vpid_sync_vcpu_all(vmx);
}
if (per_cpu(current_vmcs, cpu) != vmx->vmcs) {
@@ -973,7 +1019,8 @@ static __init int setup_vmcs_config(struct vmcs_config
*vmcs_conf)
if (_cpu_based_exec_control & CPU_BASED_ACTIVATE_SECONDARY_CONTROLS) {
min = 0;
opt = SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
- SECONDARY_EXEC_WBINVD_EXITING;
+ SECONDARY_EXEC_WBINVD_EXITING |
+ SECONDARY_EXEC_ENABLE_VPID;
if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS2,
&_cpu_based_2nd_exec_control) < 0)
return -EIO;
@@ -1276,6 +1323,8 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned
long cr0)
static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
{
+ vpid_sync_vcpu_all(to_vmx(vcpu));
+
vmcs_writel(GUEST_CR3, cr3);
if (vcpu->arch.cr0 & X86_CR0_PE)
vmx_fpu_deactivate(vcpu);
@@ -1492,6 +1541,22 @@ out:
return r;
}
+static void allocate_vpid(struct vcpu_vmx *vmx)
+{
+ int vpid;
+
+ vmx->vpid = 0;
+ if (!enable_vpid || !cpu_has_vmx_vpid())
+ return;
+ spin_lock(&vmx_vpid_lock);
+ vpid = find_first_zero_bit(vmx_vpid_bitmap, VPID_BITMAP_SIZE);
+ if (vpid < VPID_BITMAP_SIZE) {
+ vmx->vpid = vpid;
+ __set_bit(vpid, vmx_vpid_bitmap);
+ }
+ spin_unlock(&vmx_vpid_lock);
+}
+
/*
* Sets up the vmcs for emulated real mode.
*/
@@ -1530,6 +1595,8 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
if (!vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
exec_control &=
~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
+ if (vmx->vpid == 0)
+ exec_control &= ~SECONDARY_EXEC_ENABLE_VPID;
vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control);
}
@@ -1705,6 +1772,11 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmcs_write64(APIC_ACCESS_ADDR,
page_to_phys(vmx->vcpu.kvm->arch.apic_access_page));
+ if (vmx->vpid != 0) {
+ vmcs_write16(VIRTUAL_PROCESSOR_ID, vmx->vpid);
+ printk(KERN_DEBUG "VPID enabled, VPID is 0x%x\n", vmx->vpid);
+ }
+
vmx->vcpu.arch.cr0 = 0x60000010;
vmx_set_cr0(&vmx->vcpu, vmx->vcpu.arch.cr0); /* enter rmode */
vmx_set_cr4(&vmx->vcpu, 0);
@@ -1714,6 +1786,8 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmx_fpu_activate(&vmx->vcpu);
update_exception_bitmap(&vmx->vcpu);
+ vpid_sync_all();
+
return 0;
out:
@@ -2490,6 +2564,10 @@ static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
+ spin_lock(&vmx_vpid_lock);
+ if (vmx->vpid != 0)
+ __clear_bit(vmx->vpid, vmx_vpid_bitmap);
+ spin_unlock(&vmx_vpid_lock);
vmx_free_vmcs(vcpu);
kfree(vmx->host_msrs);
kfree(vmx->guest_msrs);
@@ -2506,6 +2584,8 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm,
unsigned int id)
if (!vmx)
return ERR_PTR(-ENOMEM);
+ allocate_vpid(vmx);
+
err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
if (err)
goto free_vcpu;
@@ -2650,6 +2730,8 @@ static int __init vmx_init(void)
memset(iova, 0xff, PAGE_SIZE);
kunmap(vmx_io_bitmap_b);
+ set_bit(0, vmx_vpid_bitmap); /* 0 is reversed for host */
+
r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx), THIS_MODULE);
if (r)
goto out1;
diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h
index d52ae8d..e89a4f3 100644
--- a/arch/x86/kvm/vmx.h
+++ b/arch/x86/kvm/vmx.h
@@ -49,6 +49,7 @@
* Definitions of Secondary Processor-Based VM-Execution Controls.
*/
#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
+#define SECONDARY_EXEC_ENABLE_VPID 0x00000020
#define SECONDARY_EXEC_WBINVD_EXITING 0x00000040
@@ -65,6 +66,7 @@
/* VMCS Encodings */
enum vmcs_field {
+ VIRTUAL_PROCESSOR_ID = 0x00000000,
GUEST_ES_SELECTOR = 0x00000800,
GUEST_CS_SELECTOR = 0x00000802,
GUEST_SS_SELECTOR = 0x00000804,
@@ -321,4 +323,8 @@ enum vmcs_field {
#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT 9
+#define VPID_BITMAP_SIZE (1 << 16)*BITS_PER_BYTE
+#define VPID_SYNC_EXTENT_SINGLE_CONTEXT 1
+#define VPID_SYNC_EXTENT_ALL_CONTEXT 2
+
#endif
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index d6db0de..67ae307 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -600,6 +600,7 @@ static inline void kvm_inject_gp(struct kvm_vcpu *vcpu,
u32 error_code)
#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
+#define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08"
#define MSR_IA32_TIME_STAMP_COUNTER 0x010
--
debian.1.5.3.7.1-dirty
[-- Attachment #2: 0001-KVM-VMX-Enable-Virtual-Processor-Identification-V.patch --]
[-- Type: text/x-diff, Size: 7849 bytes --]
From 39551508c869f678f028655c062b3cb5fe4715bc Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date: Thu, 17 Jan 2008 15:14:33 +0800
Subject: [PATCH] KVM: VMX: Enable Virtual Processor Identification (VPID)
To allow TLB entries to be retained across VM entry and VM exit, the VMM can now identify distinct address spaces through a new virtual-processor ID (VPID) field of the VMCS.
Signed-off-by: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
arch/x86/kvm/vmx.c | 84 +++++++++++++++++++++++++++++++++++++++++++-
arch/x86/kvm/vmx.h | 6 +++
include/asm-x86/kvm_host.h | 1 +
3 files changed, 90 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 5346e42..4e88f8a 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -37,6 +37,9 @@ MODULE_LICENSE("GPL");
static int bypass_guest_pf = 1;
module_param(bypass_guest_pf, bool, 0);
+static int enable_vpid = 1;
+module_param(enable_vpid, bool, 0);
+
struct vmcs {
u32 revision_id;
u32 abort;
@@ -71,6 +74,7 @@ struct vcpu_vmx {
unsigned rip;
} irq;
} rmode;
+ int vpid;
};
static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
@@ -86,6 +90,9 @@ static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
static struct page *vmx_io_bitmap_a;
static struct page *vmx_io_bitmap_b;
+static DECLARE_BITMAP(vmx_vpid_bitmap, VPID_BITMAP_SIZE / BITS_PER_BYTE);
+static DEFINE_SPINLOCK(vmx_vpid_lock);
+
static struct vmcs_config {
int size;
int order;
@@ -204,6 +211,12 @@ static inline int vm_need_virtualize_apic_accesses(struct kvm *kvm)
(irqchip_in_kernel(kvm)));
}
+static inline int cpu_has_vmx_vpid(void)
+{
+ return (vmcs_config.cpu_based_2nd_exec_ctrl &
+ SECONDARY_EXEC_ENABLE_VPID);
+}
+
static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
{
int i;
@@ -214,6 +227,25 @@ static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
return -1;
}
+static inline void __invvpid(int ext, u16 vpid, gva_t gva)
+{
+ struct {
+ u64 vpid:16;
+ u64 rsvd:48;
+ u64 gva;
+ } operand = {vpid, 0, gva};
+
+ if (!enable_vpid || !cpu_has_vmx_vpid())
+ return;
+
+ asm volatile (ASM_VMX_INVVPID
+ /* CF==1 or ZF==1 --> rc = -1 */
+ "; ja 1f ; ud2 ; 1:\n"
+ :
+ : "a" (&operand), "c" (ext)
+ : "memory");
+}
+
static struct kvm_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr)
{
int i;
@@ -257,6 +289,19 @@ static void vcpu_clear(struct vcpu_vmx *vmx)
vmx->launched = 0;
}
+static inline void vpid_sync_vcpu_all(struct vcpu_vmx *vmx)
+{
+ if (vmx->vpid == 0)
+ return;
+
+ __invvpid(VPID_SYNC_EXTENT_SINGLE_CONTEXT, vmx->vpid, 0);
+}
+
+static inline void vpid_sync_all(void)
+{
+ __invvpid(VPID_SYNC_EXTENT_ALL_CONTEXT, 0, 0);
+}
+
static unsigned long vmcs_readl(unsigned long field)
{
unsigned long value;
@@ -493,6 +538,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
if (vcpu->cpu != cpu) {
vcpu_clear(vmx);
kvm_migrate_apic_timer(vcpu);
+ vpid_sync_vcpu_all(vmx);
}
if (per_cpu(current_vmcs, cpu) != vmx->vmcs) {
@@ -973,7 +1019,8 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
if (_cpu_based_exec_control & CPU_BASED_ACTIVATE_SECONDARY_CONTROLS) {
min = 0;
opt = SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
- SECONDARY_EXEC_WBINVD_EXITING;
+ SECONDARY_EXEC_WBINVD_EXITING |
+ SECONDARY_EXEC_ENABLE_VPID;
if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS2,
&_cpu_based_2nd_exec_control) < 0)
return -EIO;
@@ -1276,6 +1323,8 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
{
+ vpid_sync_vcpu_all(to_vmx(vcpu));
+
vmcs_writel(GUEST_CR3, cr3);
if (vcpu->arch.cr0 & X86_CR0_PE)
vmx_fpu_deactivate(vcpu);
@@ -1492,6 +1541,22 @@ out:
return r;
}
+static void allocate_vpid(struct vcpu_vmx *vmx)
+{
+ int vpid;
+
+ vmx->vpid = 0;
+ if (!enable_vpid || !cpu_has_vmx_vpid())
+ return;
+ spin_lock(&vmx_vpid_lock);
+ vpid = find_first_zero_bit(vmx_vpid_bitmap, VPID_BITMAP_SIZE);
+ if (vpid < VPID_BITMAP_SIZE) {
+ vmx->vpid = vpid;
+ __set_bit(vpid, vmx_vpid_bitmap);
+ }
+ spin_unlock(&vmx_vpid_lock);
+}
+
/*
* Sets up the vmcs for emulated real mode.
*/
@@ -1530,6 +1595,8 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
if (!vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
exec_control &=
~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
+ if (vmx->vpid == 0)
+ exec_control &= ~SECONDARY_EXEC_ENABLE_VPID;
vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control);
}
@@ -1705,6 +1772,11 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmcs_write64(APIC_ACCESS_ADDR,
page_to_phys(vmx->vcpu.kvm->arch.apic_access_page));
+ if (vmx->vpid != 0) {
+ vmcs_write16(VIRTUAL_PROCESSOR_ID, vmx->vpid);
+ printk(KERN_DEBUG "VPID enabled, VPID is 0x%x\n", vmx->vpid);
+ }
+
vmx->vcpu.arch.cr0 = 0x60000010;
vmx_set_cr0(&vmx->vcpu, vmx->vcpu.arch.cr0); /* enter rmode */
vmx_set_cr4(&vmx->vcpu, 0);
@@ -1714,6 +1786,8 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmx_fpu_activate(&vmx->vcpu);
update_exception_bitmap(&vmx->vcpu);
+ vpid_sync_all();
+
return 0;
out:
@@ -2490,6 +2564,10 @@ static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
+ spin_lock(&vmx_vpid_lock);
+ if (vmx->vpid != 0)
+ __clear_bit(vmx->vpid, vmx_vpid_bitmap);
+ spin_unlock(&vmx_vpid_lock);
vmx_free_vmcs(vcpu);
kfree(vmx->host_msrs);
kfree(vmx->guest_msrs);
@@ -2506,6 +2584,8 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
if (!vmx)
return ERR_PTR(-ENOMEM);
+ allocate_vpid(vmx);
+
err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
if (err)
goto free_vcpu;
@@ -2650,6 +2730,8 @@ static int __init vmx_init(void)
memset(iova, 0xff, PAGE_SIZE);
kunmap(vmx_io_bitmap_b);
+ set_bit(0, vmx_vpid_bitmap); /* 0 is reversed for host */
+
r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx), THIS_MODULE);
if (r)
goto out1;
diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h
index d52ae8d..e89a4f3 100644
--- a/arch/x86/kvm/vmx.h
+++ b/arch/x86/kvm/vmx.h
@@ -49,6 +49,7 @@
* Definitions of Secondary Processor-Based VM-Execution Controls.
*/
#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
+#define SECONDARY_EXEC_ENABLE_VPID 0x00000020
#define SECONDARY_EXEC_WBINVD_EXITING 0x00000040
@@ -65,6 +66,7 @@
/* VMCS Encodings */
enum vmcs_field {
+ VIRTUAL_PROCESSOR_ID = 0x00000000,
GUEST_ES_SELECTOR = 0x00000800,
GUEST_CS_SELECTOR = 0x00000802,
GUEST_SS_SELECTOR = 0x00000804,
@@ -321,4 +323,8 @@ enum vmcs_field {
#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT 9
+#define VPID_BITMAP_SIZE (1 << 16)*BITS_PER_BYTE
+#define VPID_SYNC_EXTENT_SINGLE_CONTEXT 1
+#define VPID_SYNC_EXTENT_ALL_CONTEXT 2
+
#endif
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index d6db0de..67ae307 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -600,6 +600,7 @@ static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
+#define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08"
#define MSR_IA32_TIME_STAMP_COUNTER 0x010
--
debian.1.5.3.7.1-dirty
[-- Attachment #3: Type: text/plain, Size: 228 bytes --]
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next reply other threads:[~2008-01-24 6:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-24 6:26 Yang, Sheng [this message]
[not found] ` <200801241426.55928.sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2008-01-24 11:15 ` [PATCH] KVM: VMX: Enable Virtual Processor Identification (VPID) Aurelien Jarno
[not found] ` <4798736D.8000002-rXXEIb44qovR7s880joybQ@public.gmane.org>
2008-01-25 1:47 ` Yang, Sheng
2008-01-24 11:50 ` Avi Kivity
[not found] ` <47987B7C.1080509-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-25 4:12 ` Yang, Sheng
[not found] ` <200801251212.29031.sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2008-01-25 6:52 ` Avi Kivity
[not found] ` <4799873F.1070503-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-25 7:01 ` Yang, Sheng
[not found] ` <200801251501.54884.sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2008-01-25 7:03 ` Avi Kivity
[not found] ` <479989C0.90307-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-25 8:34 ` Yang, Sheng
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