On 08/07/2012 05:15 PM, Christoph Hellwig wrote:
At least after review is done I really think this patch sopuld be folded
into the previous one.
OK.
Some more comments below:
@@ -58,6 +58,12 @@ struct virtblk_req
struct bio *bio;
struct virtio_blk_outhdr out_hdr;
On 08/08/2012 11:09 AM, Asias He wrote:
On 08/07/2012 05:16 PM, Christoph Hellwig wrote:
On Tue, Aug 07, 2012 at 04:47:13PM +0800, Asias He wrote:
1) Ramdisk device
With bio-based IO path, sequential read/write, random read/write
IOPS boost : 28%, 24%, 21%, 16%
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
include/qemu/object.h |3 ++-
qom/object.c | 13 +
2 files changed, 7 insertions(+), 9 deletions(-)
diff --git a/include/qemu/object.h b/include/qemu/object.h
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Collect unused object and release them at caller demand.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
include/qemu/reclaimer.h | 28 ++
main-loop.c |5
qemu-tool.c |5
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Using mem_map_lock to protect among updaters. So we can get the intact
snapshot of mem topology -- FlatView radix-tree.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
exec.c |3 +++
memory.c | 22 ++
background:
refer to orignal plan posted by Marcelo Tosatti,
http://lists.gnu.org/archive/html/qemu-devel/2012-06/msg04315.html
prev version:
https://lists.gnu.org/archive/html/qemu-devel/2012-07/msg03312.html
changes v1-v2
--introduce atomic ops
--introduce ref cnt for MemoryRegion
--make
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
The types of referred object by MemoryRegion are variable, ex,
another mr, DeviceState, or other struct defined by drivers.
So the refer/unrefer may be different by drivers.
Using this ops, we can mange the backend object.
Signed-off-by: Liu Ping
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Using refcnt for mr, so we can separate mr's life cycle management
from refered object.
When mr-ref 0-1, inc the refered object.
When mr-ref 1-0, dec the refered object.
The refered object can be DeviceStae, another mr, or other opaque.
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
If out of global lock, we will be challenged by SMP in low level,
so need atomic ops.
This file is heavily copied from kernel. Currently, only x86 atomic ops
included, and will be extended for other arch for future.
Signed-off-by: Liu Ping Fan
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
memory_region_{add,del}_subregion will inc/dec mr's refcnt.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
memory.c |4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/memory.c b/memory.c
index 5dc8b59..2eaa2fc
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
PhysMap contain the flatview and radix-tree view, they are snapshot
of system topology and should be consistent. With PhysMap, we can
swap the pointer when updating and achieve the atomic.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Flatview and radix view are all under the protection of pointer.
And this make sure the change of them seem to be atomic!
The mr accessed by radix-tree leaf or flatview will be reclaimed
after the prev PhysMap not in use any longer
Signed-off-by:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Change tcg code to use PhysMap.
This is separated from the prev patch for review purpose. Should be
merged into prev one.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
exec.c | 27 +--
1 files changed, 21
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
cpus.c | 12
main-loop.h |3 +++
2 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/cpus.c b/cpus.c
index b182b3d..a734b36 100644
--- a/cpus.c
+++
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
lock:
qemu_device_tree_mutex
competitors:
--device_del(destruction of device will be postphoned until unplug
ack from guest),
--pci hot-unplug
--iteration (qdev_reset_all)
--device_add
Signed-off-by: Liu Ping Fan
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
When guest confirm the removal of device, we should
--unmap from MemoryRegion view
--isolated from device tree view
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
hw/acpi_piix4.c |4 ++--
hw/pci.c| 13 -
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
iohandler/bh/timer may use DeviceState when its refcnt=0,
postpone the reclaimer till they have done with it.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
qom/object.c |9 -
1 files changed, 8 insertions(+), 1
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
hw/e1000.c |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/hw/e1000.c b/hw/e1000.c
index 4573f13..fa71455 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -1192,6
On Tue, Aug 07, 2012 at 12:57:14PM +0200, Alexander Graf wrote:
The e500 target has lived without mmu notifiers ever since it got
introduced, but fails for the user space check on them with hugetlbfs.
Ironically that user space check isn't necessary any more since David
Gibson's fix for the
On 07.08.2012, at 23:01, Scott Wood scottw...@freescale.com wrote:
On 08/07/2012 05:57 AM, Alexander Graf wrote:
When we map a page that wasn't icache cleared before, do so when first
mapping it in KVM using the same information bits as the Linux mapping
logic. That way we are 100% sure
On 08.08.2012, at 05:31, Paul Mackerras pau...@samba.org wrote:
On Tue, Aug 07, 2012 at 12:57:14PM +0200, Alexander Graf wrote:
The e500 target has lived without mmu notifiers ever since it got
introduced, but fails for the user space check on them with hugetlbfs.
Ironically that user
Hi, all
Changes in v7:
- Using vbr-flags to trace request type
- Dropped unnecessary struct virtio_blk *vblk parameter
- Reuse struct virtblk_req in bio done function
- Added performance data on normal SATA device and the reason why make it
optional
Fio test shows bio-based IO path gives the
We need to support both REQ_FLUSH and REQ_FUA for bio based path since
it does not get the sequencing of REQ_FUA into REQ_FLUSH that request
based drivers can request.
REQ_FLUSH is emulated by:
A) If the bio has no data to write:
1. Send VIRTIO_BLK_T_FLUSH to device,
2. In the flush I/O
This patch introduces bio-based IO path for virtio-blk.
Compared to request-based IO path, bio-based IO path uses driver
provided -make_request_fn() method to bypasses the IO scheduler. It
handles the bio to device directly without allocating a request in block
layer. This reduces the IO path in
On Wed, Aug 08, 2012 at 07:51:07AM +0200, Stefan Priebe wrote:
Any news? Was this applied upstream?
Kevin is ill. He has asked me to review and test patches in his
absence. When he gets back later this week this will get picked up (and
included in QEMU 1.2).
Here is the tree, it includes this
On Tue, 7 Aug 2012 21:00:59 +
Blue Swirl blauwir...@gmail.com wrote:
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
new file mode 100644
index 000..7941c44
--- /dev/null
+++ b/hw/s390x/css.c
@@ -0,0 +1,440 @@
+/*
+ * Channel subsystem base support.
+ *
+ * Copyright
On 7 August 2012 15:52, Cornelia Huck cornelia.h...@de.ibm.com wrote:
+static void sch_handle_clear_func(SubchDev *sch)
+{
+struct pmcw *p = sch-curr_status.pmcw;
+struct scsw *s = sch-curr_status.scsw;
+int path;
+
+/* Path management: In our simple css, we always choose
On Tue, 7 Aug 2012 20:47:22 +
Blue Swirl blauwir...@gmail.com wrote:
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
new file mode 100644
index 000..8a90c3a
--- /dev/null
+++ b/hw/s390x/virtio-ccw.c
@@ -0,0 +1,962 @@
+/*
+ * virtio ccw target implementation
+
ah OK - thanks. Will there be a fixed 1.1.2 as well?
Stefan
Am 08.08.2012 10:06, schrieb Stefan Hajnoczi:
On Wed, Aug 08, 2012 at 07:51:07AM +0200, Stefan Priebe wrote:
Any news? Was this applied upstream?
Kevin is ill. He has asked me to review and test patches in his
absence. When he
On 08/08/2012 12:09 AM, Benjamin Herrenschmidt wrote:
On Tue, 2012-08-07 at 16:13 +0300, Avi Kivity wrote:
Peter has started to fix up this naming mess in qemu. I guess we should
do the same for the kernel (except for ABIs) and document it, because it
keeps generating confusion.
Ok so
On Wed, 8 Aug 2012 09:27:32 +0100
Peter Maydell peter.mayd...@linaro.org wrote:
On 7 August 2012 15:52, Cornelia Huck cornelia.h...@de.ibm.com wrote:
+static void sch_handle_clear_func(SubchDev *sch)
+{
+struct pmcw *p = sch-curr_status.pmcw;
+struct scsw *s =
Il 08/08/2012 08:25, Liu Ping Fan ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
If out of global lock, we will be challenged by SMP in low level,
so need atomic ops.
This file is heavily copied from kernel.
Then it cannot be GPLv2 _or later_. Please use the version that I
On 08/08/2012 03:49 AM, David Gibson wrote:
We never have irqchip in kernel (because we haven't written that yet)
but we still sleep in-kernel for CEDE. I haven't spotted any problem
with that, but now I'm wondering if there is one, since x86 don't do
it in what seems like the analogous
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
If out of global lock, we will be challenged by SMP in low level,
so need atomic ops.
This file is heavily copied from kernel. Currently, only x86 atomic ops
included, and will be extended for other
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Collect unused object and release them at caller demand.
Please explain the motivation for this patch.
--
error compiling committee.c: too many arguments to function
--
To unsubscribe from this
I propose we use gcc builtins. We get automatic architecture support,
and tuning for newer processors if the user so chooses.
http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Atomic-Builtins.html
In May 2031 we can switch to C11 atomics.
Maybe 2013?
--
Wei-Ren Chen (陳韋任)
Il 08/08/2012 11:05, Avi Kivity ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Collect unused object and release them at caller demand.
Please explain the motivation for this patch.
It's poor man RCU, I think?
Paolo
--
To unsubscribe from this list: send the line
On Wed, Aug 08, 2012 at 10:43:01AM +0800, Wen Congyang wrote:
diff --git a/Documentation/virtual/kvm/pv_event.txt
b/Documentation/virtual/kvm/pv_event.txt
new file mode 100644
index 000..0ebc890
--- /dev/null
+++ b/Documentation/virtual/kvm/pv_event.txt
@@ -0,0 +1,32 @@
+The KVM
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Using mem_map_lock to protect among updaters. So we can get the intact
snapshot of mem topology -- FlatView radix-tree.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
exec.c |3
On 08/08/2012 12:07 PM, Paolo Bonzini wrote:
Il 08/08/2012 11:05, Avi Kivity ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Collect unused object and release them at caller demand.
Please explain the motivation for this patch.
It's poor man RCU, I think?
I thought that
On 08/08/2012 12:05 PM, 陳韋任 (Wei-Ren Chen) wrote:
I propose we use gcc builtins. We get automatic architecture support,
and tuning for newer processors if the user so chooses.
http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Atomic-Builtins.html
In May 2031 we can switch to C11 atomics.
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
The types of referred object by MemoryRegion are variable, ex,
another mr, DeviceState, or other struct defined by drivers.
So the refer/unrefer may be different by drivers.
Using this ops, we can
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Using refcnt for mr, so we can separate mr's life cycle management
from refered object.
When mr-ref 0-1, inc the refered object.
When mr-ref 1-0, dec the refered object.
The refered object can
On 8 August 2012 07:25, Liu Ping Fan qemul...@gmail.com wrote:
+static inline void atomic_sub(int i, Atomic *v)
+{
+asm volatile(lock; subl %1,%0
+ : +m (v-counter)
+ : ir (i));
+}
NAK. We don't want random inline assembly implementations of locking
primitives in
At 08/08/2012 05:12 PM, Andrew Jones Wrote:
On Wed, Aug 08, 2012 at 10:43:01AM +0800, Wen Congyang wrote:
diff --git a/Documentation/virtual/kvm/pv_event.txt
b/Documentation/virtual/kvm/pv_event.txt
new file mode 100644
index 000..0ebc890
--- /dev/null
+++
On Wed, 2012-08-08 at 11:52 +0300, Avi Kivity wrote:
So for now I'm just doing my own version of CREATE_IRQCHIP to create it
and KVM_INTERRUPT to trigger the various interrupts. None of the mapping
stuff (which we really don't need).
You mean KVM_IRQ_LINE. KVM_INTERRUPT is a synchronous
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
PhysMap contain the flatview and radix-tree view, they are snapshot
of system topology and should be consistent. With PhysMap, we can
swap the pointer when updating and achieve the atomic.
On 8 August 2012 07:25, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
lock:
qemu_device_tree_mutex
Looking at where it's used, this doesn't seem to have anything to do
with device trees (ie dtb, see www.devicetree.org) : poorly named lock?
-- PMM
--
Il 08/08/2012 08:25, Liu Ping Fan ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Collect unused object and release them at caller demand.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
include/qemu/reclaimer.h | 28 ++
main-loop.c
Il 08/08/2012 08:25, Liu Ping Fan ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
iohandler/bh/timer may use DeviceState when its refcnt=0,
postpone the reclaimer till they have done with it.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
qom/object.c |9
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Flatview and radix view are all under the protection of pointer.
And this make sure the change of them seem to be atomic!
The mr accessed by radix-tree leaf or flatview will be reclaimed
after the
On 08/08/2012 09:25 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Please explain the motivation. AFAICT, the big qemu lock is sufficient.
--
error compiling committee.c: too many arguments to function
--
To unsubscribe from this list: send the line unsubscribe kvm
Il 08/08/2012 08:25, Liu Ping Fan ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
cpus.c | 12
main-loop.h |3 +++
2 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/cpus.c
Il 08/08/2012 08:25, Liu Ping Fan ha scritto:
+void qdev_unplug_complete(DeviceState *dev, Error **errp)
+{
+/* isolate from mem view */
+qdev_unmap(dev);
+qemu_lock_devtree();
+/* isolate from device tree */
+qdev_unset_parent(dev);
+qemu_unlock_devtree();
+
Il 08/08/2012 08:25, Liu Ping Fan ha scritto:
+static void
+pci_e1000_unmap(PCIDevice *p)
+{
+/* DO NOT FREE anything!until refcnt=0 */
+/* isolate from memory view */
+}
At least you need to call the superclass method.
Paolo
static int
pci_e1000_uninit(PCIDevice *dev)
{
On 08/08/2012 12:52 PM, Paolo Bonzini wrote:
Il 08/08/2012 08:25, Liu Ping Fan ha scritto:
+void qdev_unplug_complete(DeviceState *dev, Error **errp)
+{
+/* isolate from mem view */
+qdev_unmap(dev);
+qemu_lock_devtree();
+/* isolate from device tree */
+
On 07.08.2012, at 17:59, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Tuesday, August 07, 2012 3:38 PM
To: Bhushan Bharat-R65777
Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; Bhushan Bharat-R65777
Subject: Re: [PATCH 1/2]
On Wed, Aug 08, 2012 at 11:58:58AM +0300, Avi Kivity wrote:
On 08/08/2012 03:49 AM, David Gibson wrote:
We never have irqchip in kernel (because we haven't written that yet)
but we still sleep in-kernel for CEDE. I haven't spotted any problem
with that, but now I'm wondering if there is
For apic_set_spiv() to track APIC SW state correctly it needs to see
previous and next values of the spurious vector register, but currently
memset() overwrite the old value before apic_set_spiv() get a chance to
do tracking. Fix it by calling apic_set_spiv() before overwriting old
value.
On 08/08/2012 12:23 AM, Marcelo Tosatti wrote:
@@ -281,8 +294,10 @@ struct x86_emulate_ctxt {
bool rip_relative;
unsigned long _eip;
struct operand memop;
+u32 regs_valid; /* bitmaps of registers in _regs[] that can be read */
+u32 regs_dirty; /* bitmaps of registers
On 08/08/2012 02:59 PM, David Gibson wrote:
No, you're correct. HLT could have been emulated in userspace, it just
wasn't. The correct statement is that HLT was arbitrarily chosen to be
emulated in userspace with the synchronous model, but the asynchronous
model forced it into the kernel.
On Wed, Aug 8, 2012 at 10:21 AM, Peter Maydell peter.mayd...@linaro.org wrote:
On 8 August 2012 07:25, Liu Ping Fan qemul...@gmail.com wrote:
+static inline void atomic_sub(int i, Atomic *v)
+{
+asm volatile(lock; subl %1,%0
+ : +m (v-counter)
+ : ir (i));
+}
Il 08/08/2012 15:09, Stefan Hajnoczi ha scritto:
NAK. We don't want random inline assembly implementations of locking
primitives in QEMU, they are way too hard to keep working with all the
possible host architectures we support. I spent some time a while back
getting rid of the (variously
On 8 August 2012 14:18, Paolo Bonzini pbonz...@redhat.com wrote:
Il 08/08/2012 15:09, Stefan Hajnoczi ha scritto:
No need to roll our own or copy the implementation from the kernel.
To some extent we need to because:
1. GCC atomics look ugly, :) do not provide rmb/wmb, and in some
versions
Il 08/08/2012 15:32, Peter Maydell ha scritto:
1. GCC atomics look ugly, :) do not provide rmb/wmb, and in some
versions of GCC mb is known to be (wrongly) a no-op.
2. glib atomics do not provide mb/rmb/wmb either, and
g_atomic_int_get/g_atomic_int_set are inefficient: they add barriers
On 08/08/2012 04:49 PM, Paolo Bonzini wrote:
Il 08/08/2012 15:32, Peter Maydell ha scritto:
1. GCC atomics look ugly, :) do not provide rmb/wmb, and in some
versions of GCC mb is known to be (wrongly) a no-op.
2. glib atomics do not provide mb/rmb/wmb either, and
Am 31.01.2012 15:01, schrieb Mitsyanko Igor:
On 01/31/2012 05:15 PM, Andreas Färber wrote:
Am 31.01.2012 00:53, schrieb Anthony Liguori:
On 01/30/2012 05:41 PM, Andreas Färber wrote:
Am 30.01.2012 19:55, schrieb Juan Quintela:
Please send in any agenda items you are interested in covering.
Not sure if KVM is the culprit, but it is the last line shown on the
console. I have to power cycle the server to reboot.
David
attachment: kvm-3.6-rc1.png
On 08.08.2012, at 06:55, Christoffer Dall wrote:
On Tue, Aug 7, 2012 at 6:57 AM, Alexander Graf ag...@suse.de wrote:
Architecture code might want to figure out if an hva that it gets for example
via the mmu notifier callbacks actually is in guest mapped memory, and if so,
in which memory
On 07.08.2012, at 12:57, Alexander Graf wrote:
This patch set adds a very simple implementation of MMU notifiers for the
e500 target. Along the way, I stumbled over a few other things that I've
put into the same patch set, namely:
* e500 prerequisites
* icache flushing on page map
A command line device probe using just -device ? gets processed
after qemu-kvm initializes the accelerator. If /dev/kvm is not
present, the accelerator check will fail (kvm is defaulted to on),
which causes libvirt to not be set up to handle qemu guests.
Moving the device help handling before the
On Wed, Aug 8, 2012 at 2:47 AM, Wen Congyang we...@cn.fujitsu.com wrote:
If the target is x86/x86_64, the guest's kernel will write 0x01 to the
port KVM_PV_EVENT_PORT when it is panciked. This patch introduces a new
qom device kvm_pv_ioport to listen this I/O port, and deal with panicked
event
On Wed, Aug 8, 2012 at 8:28 AM, Cornelia Huck cornelia.h...@de.ibm.com wrote:
On Tue, 7 Aug 2012 20:47:22 +
Blue Swirl blauwir...@gmail.com wrote:
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
new file mode 100644
index 000..8a90c3a
--- /dev/null
+++
On Wed, Aug 8, 2012 at 8:17 AM, Cornelia Huck cornelia.h...@de.ibm.com wrote:
On Tue, 7 Aug 2012 21:00:59 +
Blue Swirl blauwir...@gmail.com wrote:
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
new file mode 100644
index 000..7941c44
--- /dev/null
+++ b/hw/s390x/css.c
@@ -0,0
On Wed, Aug 8, 2012 at 6:25 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Using mem_map_lock to protect among updaters. So we can get the intact
snapshot of mem topology -- FlatView radix-tree.
Signed-off-by: Liu Ping Fan
On Wed, Aug 8, 2012 at 6:25 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
PhysMap contain the flatview and radix-tree view, they are snapshot
of system topology and should be consistent. With PhysMap, we can
swap the pointer when updating and
On Wed, Aug 8, 2012 at 6:25 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Flatview and radix view are all under the protection of pointer.
And this make sure the change of them seem to be atomic!
The mr accessed by radix-tree leaf or flatview will
On 8 August 2012 20:16, Blue Swirl blauwir...@gmail.com wrote:
On Wed, Aug 8, 2012 at 8:17 AM, Cornelia Huck cornelia.h...@de.ibm.com
wrote:
On Tue, 7 Aug 2012 21:00:59 +
Blue Swirl blauwir...@gmail.com wrote:
Please use more descriptive names instead of acronyms, for example
On Wed, Aug 8, 2012 at 7:34 PM, Peter Maydell peter.mayd...@linaro.org wrote:
On 8 August 2012 20:16, Blue Swirl blauwir...@gmail.com wrote:
On Wed, Aug 8, 2012 at 8:17 AM, Cornelia Huck cornelia.h...@de.ibm.com
wrote:
On Tue, 7 Aug 2012 21:00:59 +
Blue Swirl blauwir...@gmail.com wrote:
On Wed, Jul 18, 2012 at 12:40:47PM +0200, Dominic Eschweiler wrote:
Am Montag, den 16.07.2012, 23:58 +0200 schrieb Hans J. Koch:
Try to hack up a patch to add generic BAR mapping to uio_pci_generic.c
and post it for review.
Here we go ...
Thank you very much for your work. I'm really
This patch brings virito-scsi support to kvm tool.
With the introduce of tcm_vhost (vhost-scsi)
tcm_vhost: Initial merge for vhost level target fabric driver
we can implement virito-scsi by simply having vhost-scsi to handle the
SCSI command.
Howto use:
1) Setup the tcm_vhost target through
On Tue, Aug 07, 2012 at 12:57:14PM +0200, Alexander Graf wrote:
The e500 target has lived without mmu notifiers ever since it got
introduced, but fails for the user space check on them with hugetlbfs.
Ironically that user space check isn't necessary any more since David
Gibson's fix for the
On 07.08.2012, at 23:01, Scott Wood scottw...@freescale.com wrote:
On 08/07/2012 05:57 AM, Alexander Graf wrote:
When we map a page that wasn't icache cleared before, do so when first
mapping it in KVM using the same information bits as the Linux mapping
logic. That way we are 100% sure
On 08/08/2012 12:09 AM, Benjamin Herrenschmidt wrote:
On Tue, 2012-08-07 at 16:13 +0300, Avi Kivity wrote:
Peter has started to fix up this naming mess in qemu. I guess we should
do the same for the kernel (except for ABIs) and document it, because it
keeps generating confusion.
Ok so
On 08/08/2012 03:49 AM, David Gibson wrote:
We never have irqchip in kernel (because we haven't written that yet)
but we still sleep in-kernel for CEDE. I haven't spotted any problem
with that, but now I'm wondering if there is one, since x86 don't do
it in what seems like the analogous
On Wed, 2012-08-08 at 11:52 +0300, Avi Kivity wrote:
So for now I'm just doing my own version of CREATE_IRQCHIP to create it
and KVM_INTERRUPT to trigger the various interrupts. None of the mapping
stuff (which we really don't need).
You mean KVM_IRQ_LINE. KVM_INTERRUPT is a synchronous
On 07.08.2012, at 17:59, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Tuesday, August 07, 2012 3:38 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org; k...@vger.kernel.org; Bhushan Bharat-R65777
Subject: Re: [PATCH
On 08.08.2012, at 03:02, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, August 08, 2012 2:15 AM
To: Alexander Graf
Cc: Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org; k...@vger.kernel.org;
Bhushan
Bharat-R65777
Subject: Re: [PATCH
On Wed, Aug 08, 2012 at 11:58:58AM +0300, Avi Kivity wrote:
On 08/08/2012 03:49 AM, David Gibson wrote:
We never have irqchip in kernel (because we haven't written that yet)
but we still sleep in-kernel for CEDE. I haven't spotted any problem
with that, but now I'm wondering if there is
On 08/08/2012 02:59 PM, David Gibson wrote:
No, you're correct. HLT could have been emulated in userspace, it just
wasn't. The correct statement is that HLT was arbitrarily chosen to be
emulated in userspace with the synchronous model, but the asynchronous
model forced it into the kernel.
On 07.08.2012, at 12:57, Alexander Graf wrote:
This patch set adds a very simple implementation of MMU notifiers for the
e500 target. Along the way, I stumbled over a few other things that I've
put into the same patch set, namely:
* e500 prerequisites
* icache flushing on page map
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