From: Laurent Vivier <Laurent.Vivier@bull.net>
To: Ingo Molnar <mingo@elte.hu>
Cc: kvm-devel <kvm-devel@lists.sourceforge.net>,
linux-kernel <linux-kernel@vger.kernel.org>,
virtualization <virtualization@lists.linux-foundation.org>
Subject: [PATCH 4/4] Modify KVM to update guest time accounting.
Date: Mon, 20 Aug 2007 15:14:14 +0200 [thread overview]
Message-ID: <46C993A6.3060001@bull.net> (raw)
[-- Attachment #1: Type: text/plain, Size: 215 bytes --]
[PATCH 4/4] Modify KVM to update guest time accounting.
Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
--
------------- Laurent.Vivier@bull.net --------------
"Software is hard" - Donald Knuth
[-- Attachment #2: kvm_account_guest --]
[-- Type: text/plain, Size: 2296 bytes --]
Index: kvm/drivers/kvm/kvm.h
===================================================================
--- kvm.orig/drivers/kvm/kvm.h 2007-08-20 13:23:53.000000000 +0200
+++ kvm/drivers/kvm/kvm.h 2007-08-20 13:23:58.000000000 +0200
@@ -589,6 +589,17 @@ void kvm_mmu_unload(struct kvm_vcpu *vcp
int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run);
+static inline void kvm_guest_enter(void)
+{
+#ifdef CONFIG_GUEST_ACCOUNTING
+ current->flags |= PF_VCPU;
+#endif
+}
+
+static inline void kvm_guest_exit(void)
+{
+}
+
static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
u32 error_code)
{
Index: kvm/drivers/kvm/svm.c
===================================================================
--- kvm.orig/drivers/kvm/svm.c 2007-08-20 13:23:53.000000000 +0200
+++ kvm/drivers/kvm/svm.c 2007-08-20 13:23:58.000000000 +0200
@@ -1404,6 +1404,7 @@ again:
clgi();
vcpu->guest_mode = 1;
+ kvm_guest_enter();
if (vcpu->requests)
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
svm_flush_tlb(vcpu);
@@ -1536,6 +1537,7 @@ again:
#endif
: "cc", "memory" );
+ kvm_guest_exit();
vcpu->guest_mode = 0;
if (vcpu->fpu_active) {
Index: kvm/drivers/kvm/vmx.c
===================================================================
--- kvm.orig/drivers/kvm/vmx.c 2007-08-20 13:23:53.000000000 +0200
+++ kvm/drivers/kvm/vmx.c 2007-08-20 13:23:58.000000000 +0200
@@ -2078,6 +2078,7 @@ again:
local_irq_disable();
vcpu->guest_mode = 1;
+ kvm_guest_enter();
if (vcpu->requests)
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
vmx_flush_tlb(vcpu);
@@ -2198,6 +2199,7 @@ again:
[cr2]"i"(offsetof(struct kvm_vcpu, cr2))
: "cc", "memory" );
+ kvm_guest_exit();
vcpu->guest_mode = 0;
local_irq_enable();
Index: kvm/drivers/kvm/Kconfig
===================================================================
--- kvm.orig/drivers/kvm/Kconfig 2007-08-20 13:36:58.000000000 +0200
+++ kvm/drivers/kvm/Kconfig 2007-08-20 13:37:36.000000000 +0200
@@ -13,6 +13,7 @@ config KVM
depends on X86 && EXPERIMENTAL
select PREEMPT_NOTIFIERS
select ANON_INODES
+ select GUEST_ACCOUNTING
---help---
Support hosting fully virtualized guest machines using hardware
virtualization extensions. You will need a fairly recent
WARNING: multiple messages have this Message-ID (diff)
From: Laurent Vivier <Laurent.Vivier-6ktuUTfB/bM@public.gmane.org>
To: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Cc: kvm-devel
<kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
linux-kernel
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
virtualization
<virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
Subject: [PATCH 4/4] Modify KVM to update guest time accounting.
Date: Mon, 20 Aug 2007 15:14:14 +0200 [thread overview]
Message-ID: <46C993A6.3060001@bull.net> (raw)
[-- Attachment #1: Type: text/plain, Size: 255 bytes --]
[PATCH 4/4] Modify KVM to update guest time accounting.
Signed-off-by: Laurent Vivier <Laurent.Vivier-6ktuUTfB/bM@public.gmane.org>
--
------------- Laurent.Vivier-6ktuUTfB/bM@public.gmane.org --------------
"Software is hard" - Donald Knuth
[-- Attachment #2: kvm_account_guest --]
[-- Type: text/plain, Size: 2296 bytes --]
Index: kvm/drivers/kvm/kvm.h
===================================================================
--- kvm.orig/drivers/kvm/kvm.h 2007-08-20 13:23:53.000000000 +0200
+++ kvm/drivers/kvm/kvm.h 2007-08-20 13:23:58.000000000 +0200
@@ -589,6 +589,17 @@ void kvm_mmu_unload(struct kvm_vcpu *vcp
int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run);
+static inline void kvm_guest_enter(void)
+{
+#ifdef CONFIG_GUEST_ACCOUNTING
+ current->flags |= PF_VCPU;
+#endif
+}
+
+static inline void kvm_guest_exit(void)
+{
+}
+
static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
u32 error_code)
{
Index: kvm/drivers/kvm/svm.c
===================================================================
--- kvm.orig/drivers/kvm/svm.c 2007-08-20 13:23:53.000000000 +0200
+++ kvm/drivers/kvm/svm.c 2007-08-20 13:23:58.000000000 +0200
@@ -1404,6 +1404,7 @@ again:
clgi();
vcpu->guest_mode = 1;
+ kvm_guest_enter();
if (vcpu->requests)
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
svm_flush_tlb(vcpu);
@@ -1536,6 +1537,7 @@ again:
#endif
: "cc", "memory" );
+ kvm_guest_exit();
vcpu->guest_mode = 0;
if (vcpu->fpu_active) {
Index: kvm/drivers/kvm/vmx.c
===================================================================
--- kvm.orig/drivers/kvm/vmx.c 2007-08-20 13:23:53.000000000 +0200
+++ kvm/drivers/kvm/vmx.c 2007-08-20 13:23:58.000000000 +0200
@@ -2078,6 +2078,7 @@ again:
local_irq_disable();
vcpu->guest_mode = 1;
+ kvm_guest_enter();
if (vcpu->requests)
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
vmx_flush_tlb(vcpu);
@@ -2198,6 +2199,7 @@ again:
[cr2]"i"(offsetof(struct kvm_vcpu, cr2))
: "cc", "memory" );
+ kvm_guest_exit();
vcpu->guest_mode = 0;
local_irq_enable();
Index: kvm/drivers/kvm/Kconfig
===================================================================
--- kvm.orig/drivers/kvm/Kconfig 2007-08-20 13:36:58.000000000 +0200
+++ kvm/drivers/kvm/Kconfig 2007-08-20 13:37:36.000000000 +0200
@@ -13,6 +13,7 @@ config KVM
depends on X86 && EXPERIMENTAL
select PREEMPT_NOTIFIERS
select ANON_INODES
+ select GUEST_ACCOUNTING
---help---
Support hosting fully virtualized guest machines using hardware
virtualization extensions. You will need a fairly recent
[-- Attachment #3: Type: text/plain, Size: 315 bytes --]
-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems? Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
[-- Attachment #4: Type: text/plain, Size: 186 bytes --]
_______________________________________________
kvm-devel mailing list
kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
https://lists.sourceforge.net/lists/listinfo/kvm-devel
next reply other threads:[~2007-08-20 13:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-20 13:14 Laurent Vivier [this message]
2007-08-20 13:14 ` [PATCH 4/4] Modify KVM to update guest time accounting Laurent Vivier
2007-08-20 13:40 ` [kvm-devel] " Avi Kivity
2007-08-20 13:40 ` Avi Kivity
2007-08-20 13:49 ` [kvm-devel] " Laurent Vivier
2007-08-20 13:49 ` Laurent Vivier
2007-08-20 13:49 ` Laurent Vivier
2007-08-20 14:08 ` [kvm-devel] " Avi Kivity
2007-08-20 14:08 ` Avi Kivity
2007-08-20 14:22 ` [kvm-devel] " Laurent Vivier
2007-08-20 14:22 ` Laurent Vivier
2007-08-20 14:22 ` [kvm-devel] " Laurent Vivier
2007-08-20 14:08 ` Avi Kivity
2007-08-20 13:40 ` Avi Kivity
-- strict thread matches above, loose matches on Subject: below --
2007-08-20 13:14 Laurent Vivier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=46C993A6.3060001@bull.net \
--to=laurent.vivier@bull.net \
--cc=kvm-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.