generates. This patch uses the qemu
Notifier system to tell the guest it is about to be stopped.
Signed-off-by: Eric B Munson
Signed-off-by: Raghavendra K T
Cc: Eric B Munson
Cc: Avi Kivity
Cc: Marcelo Tosatti
Cc: Anthony Liguori
Cc: Jan Kiszka
Cc: Andreas Färber
---
Changes from V8
On 04/07/2012 02:39 AM, Andreas Färber wrote:
Am 06.04.2012 15:01, schrieb Raghavendra K T:
On 04/06/2012 03:19 PM, Raghavendra K T wrote:
On 04/06/2012 02:29 PM, Andreas Färber wrote:
Am 06.04.2012 09:21, schrieb Raghavendra K T:
From: Eric B Munson
Often when a guest is stopped from the
On 04/06/2012 03:19 PM, Raghavendra K T wrote:
On 04/06/2012 02:29 PM, Andreas Färber wrote:
Am 06.04.2012 09:21, schrieb Raghavendra K T:
From: Eric B Munson
Often when a guest is stopped from the qemu console, it will report
spurious
soft lockup warnings on resume. There are kernel patches
On 04/06/2012 02:29 PM, Andreas Färber wrote:
Am 06.04.2012 09:21, schrieb Raghavendra K T:
From: Eric B Munson
Often when a guest is stopped from the qemu console, it will report spurious
soft lockup warnings on resume. There are kernel patches being discussed that
will give the host the
generates. This patch uses the qemu
Notifier system to tell the guest it is about to be stopped.
Signed-off-by: Eric B Munson
Signed-off-by: Raghavendra K T
Cc: Eric B Munson
Cc: Avi Kivity
Cc: Marcelo Tosatti
Cc: Anthony Liguori
Cc: Jan Kiszka
Cc: "Andreas Färber"
---
Chang
On 03/23/2012 02:27 PM, Jan Kiszka wrote:
On 2012-03-23 09:23, Raghavendra K T wrote:
From: Raghavendra K T
MSR_KVM_PV_UNHALT tells whether vcpu is unhalted, which needs to be
used during migration.
Err, and where is it actually saved to/restored from the vmstate? You
are lacking an
On 03/23/2012 02:27 PM, Jan Kiszka wrote:
On 2012-03-23 09:23, Raghavendra K T wrote:
From: Raghavendra K T
MSR_KVM_PV_UNHALT tells whether vcpu is unhalted, which needs to be
used during migration.
Err, and where is it actually saved to/restored from the vmstate? You
are lacking an
From: Raghavendra K T
MSR_KVM_PV_UNHALT tells whether vcpu is unhalted, which needs to be
used during migration.
Signed-off-by: Raghavendra K T
---
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index a1ed3e7..10286a5 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -697,6 +697,7
From: Raghavendra K T
Extend the KVM Hypervisor to enable PVLOCK_KICK feature that allows
a vcpu to kick the halted vcpu to continue with execution in PV ticket
spinlock.
Signed-off-by: Srivatsa Vaddagiri
Signed-off-by: Raghavendra K T
---
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
script.
---
Changes in V3:
rename PVLOCK_KICK --> PV_UNHALT
add MSR related changes to aid migration
Changes in V2:
Drop the syncing kernel header changes. (Alex)
rename KICK_VCPU --> PVLOCK_KICK.
Raghavendra K T(2):
add PV_UNHALT feature support.
add support to get/set vcpu unhalt
From: Raghavendra K T
The patch, extends KVM-hypervisor and Linux guest running on
KVM-hypervisor to support pv-ticket spinlocks.
PV ticket spinlock helps to solve Lock Holder Preemption problem discussed in
http://www.amd64.org/fileadmin/user_upload/pub/LHP-commented_slides.pdf.
When spinlock
On 12/26/2011 07:37 PM, Avi Kivity wrote:
On 12/19/2011 04:11 PM, Jan Kiszka wrote:
Backwards compatibility
If we want backwards compatibility, we need more than just a simple feature
check, no? Oh, you feed that into CPUID? That's nifty. Ok, so you behave like
VMX/SVM do on real hardware -
Update the kernel header that adds a hypercall to support pv-ticketlocks.
Signed-off-by: Raghavendra K T
---
diff --git a/linux-headers/asm-x86/kvm_para.h b/linux-headers/asm-x86/kvm_para.h
index f2ac46a..03d3a36 100644
--- a/linux-headers/asm-x86/kvm_para.h
+++ b/linux-headers/asm-x86
Extend the KVM Hypervisor to enable KICK_VCPU feature that allows
a vcpu to kick the halted vcpu to continue with execution in PV ticket
spinlock.
Signed-off-by: Srivatsa Vaddagiri
Signed-off-by: Raghavendra K T
---
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 5bfc21f..69bce21
From: Raghavendra K T
Three patch series following this, extends KVM-hypervisor
and Linux guest running on KVM-hypervisor to support pv-ticket spinlocks.
PV ticket spinlock helps to solve Lock Holder Preemption problem discussed in
http://www.amd64.org/fileadmin/user_upload/pub/LHP
Update the kvm kernel headers to the 3.2.0-rc1 post using
scripts/update-linux-headers.sh script.
Signed-off-by: Raghavendra K T
---
diff --git a/linux-headers/asm-powerpc/kvm.h b/linux-headers/asm-powerpc/kvm.h
index fb3fddc..08fe69e 100644
--- a/linux-headers/asm-powerpc/kvm.h
+++ b/linux
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