On 09/04/2015 00:57, Alexander Graf wrote:
The last patch in this series needs a definition of PPC_MSGCLR that is
added by the patch powerpc/powernv: Fixes for hypervisor doorbell
handling, which has now gone upstream into Linus' tree as commit
755563bc79c7 via the linuxppc-dev mailing
On Wed, Apr 01, 2015 at 05:55:29PM +0200, David Hildenbrand wrote:
This commit adds a stub function to support the KVM_SET_GUEST_DEBUG
ioctl. Currently any operation flag will return EINVAL. Actual
Well it won't return -EINVAL if you push in KVM_GUESTDBG_ENABLE or 0.
Any unsupported flag
* Marcelo Tosatti | 2015-04-08 20:33:23 [-0300]:
Sebastian,
Hi Marcelo,
rebased against v3.18.7-rt2 as requested.
The problem:
On -RT, an emulated LAPIC timer instance has the following path:
1) hard interrupt
2) ksoftirqd is scheduled
3) ksoftirqd wakes up vcpu thread
4) vcpu thread is
Nadav Amit nadav.a...@gmail.com writes:
Avi Kivity avi.kiv...@gmail.com wrote:
On 04/09/2015 09:21 PM, Nadav Amit wrote:
Bandan Das b...@redhat.com wrote:
Nadav Amit nadav.a...@gmail.com writes:
Jan Kiszka jan.kis...@siemens.com wrote:
On 2015-04-08 19:40, Nadav Amit wrote:
Jan
On 4/9/15 14:10, Radim Krčmář wrote:
2015-04-08 12:18-0400, Wei Huang:
As a preparation to unify vPMU implementation, this patch renames pmu.c
to pmu_intel.c. Makefile is changed accordingly.
Signed-off-by: Wei Huang w...@redhat.com
---
(Since v2 does move quite a bit of it back to pmu.c, we
2015-04-08 12:18-0400, Wei Huang:
Currently KVM only supports vPMU for Intel platforms. This patch set
enable vPMU support for AMD platform by creating a common PMU
interface for x86. The PMU calls from guest VMs are dispatched
to corresponding functions defined in arch specific files.
V2:
snip
@@ -4918,13 +4919,13 @@ static int emulator_set_msr(struct
x86_emulate_ctxt *ctxt,
static int emulator_check_pmc(struct x86_emulate_ctxt *ctxt,
u32 pmc)
{
- return kvm_pmu_check_pmc(emul_to_vcpu(ctxt), pmc);
+ return
On 02/04/2015 14:47, Paolo Bonzini wrote:
On 01/04/2015 23:12, Bandan Das wrote:
Before:
./x86-run ./x86/msr.flat
QEMU binary has no support for test device. Exiting.
After:
./x86-run ./x86/msr.flat
A QEMU binary was not found, You can set a custom
location by using the QEMU=path
On Thu, Apr 09, 2015 at 09:16:24AM -0400, Rik van Riel wrote:
On 04/09/2015 03:01 AM, Peter Zijlstra wrote:
On Wed, Apr 08, 2015 at 02:32:19PM -0400, Waiman Long wrote:
For a virtual guest with the qspinlock patch, a simple unfair byte lock
will be used if PV spinlock is not configured in
On 04/09/2015 10:13 AM, Peter Zijlstra wrote:
On Thu, Apr 09, 2015 at 09:16:24AM -0400, Rik van Riel wrote:
On 04/09/2015 03:01 AM, Peter Zijlstra wrote:
On Wed, Apr 08, 2015 at 02:32:19PM -0400, Waiman Long wrote:
For a virtual guest with the qspinlock patch, a simple unfair byte lock
will
2015-04-09 15:03-0500, Wei Huang:
On 4/9/15 14:43, Radim Krčmář wrote:
This patch introduces a lot of trailing whitespaces, please remove them.
(`git am` says 15.)
Some of them were carried from original pmu.c file. I will purge them in V3.
(Ah, I didn't see them in kvm_intel.c and didn't
The world switch spends quite some time dealing with the FP/SIMD
registers, as the state is quite sizeable (32 128bit registers,
plus some crumbs on the side). We save/restore them on each
entry/exit, so that both the host and the guest always see
the state they expect.
But let's face it: the
Bandan Das b...@redhat.com writes:
...
I think we still want to print this if the user supplied qemu has no test
device support. I think this is better -
--- a/x86/run
+++ b/x86/run
@@ -8,6 +8,7 @@ qemusystem=${QEMU:-qemu-system-x86_64}
if ! [ -z ${QEMU} ]
then
qemu=${QEMU}
2015-04-08 12:18-0400, Wei Huang:
As a preparation to unify vPMU implementation, this patch renames pmu.c
to pmu_intel.c. Makefile is changed accordingly.
Signed-off-by: Wei Huang w...@redhat.com
---
(Since v2 does move quite a bit of it back to pmu.c, we can also decide
to keep git
On 04/09/2015 02:23 PM, Peter Zijlstra wrote:
On Thu, Apr 09, 2015 at 08:13:27PM +0200, Peter Zijlstra wrote:
On Mon, Apr 06, 2015 at 10:55:44PM -0400, Waiman Long wrote:
+#define PV_HB_PER_LINE (SMP_CACHE_BYTES / sizeof(struct pv_hash_bucket))
+static struct qspinlock **pv_hash(struct
On Tue, Mar 31, 2015 at 04:08:05PM +0100, Alex Bennée wrote:
This adds support for single-stepping the guest. As userspace can and
will manipulate guest registers before restarting any tweaking of the
registers has to occur just before control is passed back to the guest.
Furthermore while
Avi Kivity avi.kiv...@gmail.com wrote:
On 04/09/2015 09:21 PM, Nadav Amit wrote:
Bandan Das b...@redhat.com wrote:
Nadav Amit nadav.a...@gmail.com writes:
Jan Kiszka jan.kis...@siemens.com wrote:
On 2015-04-08 19:40, Nadav Amit wrote:
Jan Kiszka jan.kis...@siemens.com wrote:
On
On Thu, 2015-04-09 at 15:13 +0200, Wolfgang Nothdurft wrote:
Hi,
I'm using kvm + libvirt + pci pass-through (vfio-pci) for virtualizing
my mythtv server.
hostdev mode='subsystem' type='pci' managed='yes'
driver name='vfio'/
source
address domain='0x'
Hej Christoffer,
On 09/04/15 14:30, Christoffer Dall wrote:
On Sat, Mar 28, 2015 at 01:48:20AM +, Andre Przywara wrote:
Our in-kernel VGIC emulation still uses struct kvm_run briefly before
writing back the emulation result into the guest register. Using a
userspace mapped data structure
On 09/04/2015 19:14, Bandan Das wrote:
Paolo Bonzini pbonz...@redhat.com writes:
...
This breaks QEMU=... ./x86-run ./x86/msr.flat
Fixed as follows:
diff --git a/x86/run b/x86/run
index d5adf8d..219a93b 100755
--- a/x86/run
+++ b/x86/run
@@ -20,16 +20,15 @@ else
Andrew Jones drjo...@redhat.com writes:
On Tue, Mar 31, 2015 at 04:08:05PM +0100, Alex Bennée wrote:
This adds support for single-stepping the guest. As userspace can and
will manipulate guest registers before restarting any tweaking of the
registers has to occur just before control is
Andrew Jones drjo...@redhat.com writes:
On Wed, Apr 01, 2015 at 06:28:55PM +0200, David Hildenbrand wrote:
This is a precursor for later patches which will need to do more to
setup debug state before entering the hyp.S switch code. The existing
functionality for setting mdcr_el2 has been
Andrew Jones drjo...@redhat.com writes:
On Wed, Apr 01, 2015 at 05:55:29PM +0200, David Hildenbrand wrote:
This commit adds a stub function to support the KVM_SET_GUEST_DEBUG
ioctl. Currently any operation flag will return EINVAL. Actual
Well it won't return -EINVAL if you push in
On 04/09/2015 03:01 AM, Peter Zijlstra wrote:
On Wed, Apr 08, 2015 at 02:32:19PM -0400, Waiman Long wrote:
For a virtual guest with the qspinlock patch, a simple unfair byte lock
will be used if PV spinlock is not configured in or the hypervisor
isn't either KVM or Xen. The byte lock works
On Thu, Apr 09, 2015 at 08:13:27PM +0200, Peter Zijlstra wrote:
On Mon, Apr 06, 2015 at 10:55:44PM -0400, Waiman Long wrote:
+#define PV_HB_PER_LINE (SMP_CACHE_BYTES / sizeof(struct
pv_hash_bucket))
+static struct qspinlock **pv_hash(struct qspinlock *lock, struct pv_node
*node)
On Mon, Apr 06, 2015 at 10:55:44PM -0400, Waiman Long wrote:
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -0,0 +1,321 @@
+#ifndef _GEN_PV_LOCK_SLOWPATH
+#error do not include this file
+#endif
+
+/*
+ * Implement paravirt qspinlocks; the general idea is to halt the vcpus
instead
+ * of
On 4/9/15 14:43, Radim Krčmář wrote:
2015-04-08 12:18-0400, Wei Huang:
This patch converts existing Intel specific vPMU code into a common vPMU
interface with the following steps:
- A large portion of Intel vPMU code is now moved to pmu.c file. The rest
is re-arranged and hooked up with
2015-04-08 12:18-0400, Wei Huang:
This patch converts existing Intel specific vPMU code into a common vPMU
interface with the following steps:
- A large portion of Intel vPMU code is now moved to pmu.c file. The rest
is re-arranged and hooked up with the newly-defined intel_pmu_ops.
-
Bandan Das b...@redhat.com wrote:
Nadav Amit nadav.a...@gmail.com writes:
Jan Kiszka jan.kis...@siemens.com wrote:
On 2015-04-08 19:40, Nadav Amit wrote:
Jan Kiszka jan.kis...@siemens.com wrote:
On 2015-04-08 18:59, Nadav Amit wrote:
Jan Kiszka jan.kis...@siemens.com wrote:
On
Apply the same logic we use in vfio_pci_try_bus_reset() to perform a
bus or slot reset as devices are released to the device open path.
This not only improves our chances of handing the device to the user
in a clean state, but we can also avoid duplicate resets if the device
is released and
Am 09.04.2015 um 17:40 schrieb Alex Williamson:
On Thu, 2015-04-09 at 15:13 +0200, Wolfgang Nothdurft wrote:
Hi,
I'm using kvm + libvirt + pci pass-through (vfio-pci) for virtualizing
my mythtv server.
hostdev mode='subsystem' type='pci' managed='yes'
driver name='vfio'/
On Mon, Apr 06, 2015 at 10:55:48PM -0400, Waiman Long wrote:
@@ -219,24 +236,30 @@ static void pv_wait_node(struct mcs_spinlock *node)
}
/*
+ * Called after setting next-locked = 1 lock acquired.
+ * Check if the the CPU has been halted. If so, set the _Q_SLOW_VAL flag
+ * and put an
On Thu, Apr 09, 2015 at 09:57:21PM +0200, Peter Zijlstra wrote:
On Mon, Apr 06, 2015 at 10:55:48PM -0400, Waiman Long wrote:
@@ -219,24 +236,30 @@ static void pv_wait_node(struct mcs_spinlock *node)
}
/*
+ * Called after setting next-locked = 1 lock acquired.
+ * Check if the
On 4/9/15 14:05, Radim Krčmář wrote:
2015-04-08 12:18-0400, Wei Huang:
Currently KVM only supports vPMU for Intel platforms. This patch set
enable vPMU support for AMD platform by creating a common PMU
interface for x86. The PMU calls from guest VMs are dispatched
to corresponding functions
On 09/04/2015 00:57, Alexander Graf wrote:
The last patch in this series needs a definition of PPC_MSGCLR that is
added by the patch powerpc/powernv: Fixes for hypervisor doorbell
handling, which has now gone upstream into Linus' tree as commit
755563bc79c7 via the linuxppc-dev mailing
2015-04-09 15:27+0200, Florent B:
Hi everyone,
This list seems to be a developer list, I didn't find any users list.
I don't think it exists, KVM is used mostly by programs and they are not
sophisticated enough to communicate.
(or they are, which is why humans aren't invited)
So please
On Tue, Mar 31, 2015 at 04:08:03PM +0100, Alex Bennée wrote:
This is a precursor for later patches which will need to do more to
setup debug state before entering the hyp.S switch code. The existing
functionality for setting mdcr_el2 has been moved out of hyp.S and now
uses the value kept in
On Wed, Apr 01, 2015 at 06:28:55PM +0200, David Hildenbrand wrote:
This is a precursor for later patches which will need to do more to
setup debug state before entering the hyp.S switch code. The existing
functionality for setting mdcr_el2 has been moved out of hyp.S and now
uses the value
On Wed, Apr 08, 2015 at 02:32:19PM -0400, Waiman Long wrote:
For a virtual guest with the qspinlock patch, a simple unfair byte lock
will be used if PV spinlock is not configured in or the hypervisor
isn't either KVM or Xen. The byte lock works fine with small guest
of just a few vCPUs. On a
Hi,
I'm using kvm + libvirt + pci pass-through (vfio-pci) for virtualizing
my mythtv server.
hostdev mode='subsystem' type='pci' managed='yes'
driver name='vfio'/
source
address domain='0x' bus='0x01' slot='0x00' function='0x0'/
/source
address
On 04/09/2015 09:21 PM, Nadav Amit wrote:
Bandan Das b...@redhat.com wrote:
Nadav Amit nadav.a...@gmail.com writes:
Jan Kiszka jan.kis...@siemens.com wrote:
On 2015-04-08 19:40, Nadav Amit wrote:
Jan Kiszka jan.kis...@siemens.com wrote:
On 2015-04-08 18:59, Nadav Amit wrote:
Jan Kiszka
On Sat, Mar 28, 2015 at 01:48:20AM +, Andre Przywara wrote:
Our in-kernel VGIC emulation still uses struct kvm_run briefly before
writing back the emulation result into the guest register. Using a
userspace mapped data structure within the kernel sounds dodgy, also
we do some extra copying
Paolo Bonzini pbonz...@redhat.com writes:
...
This breaks QEMU=... ./x86-run ./x86/msr.flat
Fixed as follows:
diff --git a/x86/run b/x86/run
index d5adf8d..219a93b 100755
--- a/x86/run
+++ b/x86/run
@@ -20,16 +20,15 @@ else
break
fi
done
-fi
-
43 matches
Mail list logo
