On Wed, 21 Apr 2010, Avi Kivity wrote:
On 04/21/2010 09:50 PM, Gerhard Wiesinger wrote:
I don't think changing VGA window is a problem because there are
500.000-1Mio changes/s possible.
1MB/s, 500k-1M changes/s Coincidence? Is it taking a page fault
or trap on every write?
To
On 04/22/2010 11:45 AM, Fernando Luis Vázquez Cao wrote:
On 04/21/2010 06:41 PM, Alexander Graf wrote:
On 21.04.2010, at 10:29, Fernando Luis Vázquez Cao wrote:
On 04/20/2010 08:03 PM, Takuya Yoshikawa wrote:
@@ -318,7 +318,7 @@ struct kvm_dirty_log {
__u32 padding1;
union {
On Wed, 21 Apr 2010, Jamie Lokier wrote:
Gerhard Wiesinger wrote:
Hmmm. I'm very new to QEMU and KVM but at least accessing the virtual HW
of QEMU even from KVM must be possible (e.g. memory and port accesses are
done on nearly every virtual device) and therefore I'm ending in C code in
the
In current code, shadow page can become asynchronous only if one
shadow page for a gfn, this rule is too strict, in fact, we can
let all last mapping page(i.e, it's the pte page) become unsync
and sync them at invlpg or flush tlb time.
Address this thinking, a gfn may have many shadow pages, for
If the guest is 32-bit, we should use 'quadrant' to adjust gpa
offset
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/paging_tmpl.h |7 ++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
Convert mmu tracepoints by using DECLARE_EVENT_CLASS
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmutrace.h | 69 +-
1 files changed, 26 insertions(+), 43 deletions(-)
diff --git a/arch/x86/kvm/mmutrace.h
Move unsync/sync tracepoints to the proper place, it's good
for us to obtain unsync page live time
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
Using '!sp-role.cr4_pae' replaces 'PTTYPE == 32' and using
'pte_size = sp-role.cr4_pae ? 8 : 4' replaces sizeof(pt_element_t)
Then no need compile twice for this code
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c | 60
Using is_last_spte() to cleanup invlpg code
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c |4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index fac7c09..fd027a6 100644
--- a/arch/x86/kvm/mmu.c
If have new mapping to the unsync page(i.e, add a new parent), just
update the page from sp-gfn but not write-protect gfn, and if need
create new shadow page form sp-gfn, we should sync it
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c | 27
In current code, shadow page can become asynchronous only if one
shadow page for a gfn, this rule is too strict, in fact, we can
let all last mapping page(i.e, it's the pte page) become unsync,
and sync them at invlpg or flush tlb time.
This patch allow more page become asynchronous at gfn
Allow more page become asynchronous at getting sp time, if need create new
shadow page for gfn but it not allow unsync(level 0), we should unsync all
gfn's unsync page
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c | 22 --
1 files
Let invlpg not depends on kvm_mmu_pte_write path, later patch will need
this feature
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c | 40
1 files changed, 24 insertions(+), 16 deletions(-)
diff --git
invlpg only need update unsync page, sp-unsync and sp-unsync_children
can help us to find it
Now, a gfn may have many shadow pages, when one sp need be synced, we
write protect sp-gfn and sync this sp but we keep other shadow pages
asynchronous
So, while gfn happen page fault, let it not touch
On 04/22/2010 08:26 AM, Marek Olszewski wrote:
Under VMX without EPT, I do not seeing any VM Exits due to task
switches. Is there a way to enable these? I'm looking to intercept
the guest whenever it does a iret.
See EXIT_REASON_TASK_SWITCH. However, that won't fire on any iret, only
On 04/22/2010 08:37 AM, Gerhard Wiesinger wrote:
On Wed, 21 Apr 2010, Avi Kivity wrote:
On 04/21/2010 09:14 PM, Gerhard Wiesinger wrote:
Can you explain which code files/functions of KVM is involved in
handling VGA memory window and page switching through the port write
to the VGA window
On 04/22/2010 09:04 AM, Gerhard Wiesinger wrote:
On Wed, 21 Apr 2010, Avi Kivity wrote:
On 04/21/2010 09:50 PM, Gerhard Wiesinger wrote:
I don't think changing VGA window is a problem because there are
500.000-1Mio changes/s possible.
1MB/s, 500k-1M changes/s Coincidence? Is it taking
Avi Kivity wrote:
+Translation
+===
+
+The primary job of the mmu is to program the processor's mmu to translate
+addresses for the guest. Different translations are required at different
+times:
+
+- when guest paging is disabled, we translate guest physical addresses to
+ host
On 04/22/2010 10:13 AM, Karl Vogel wrote:
Avi Kivity wrote:
+Translation
+===
+
+The primary job of the mmu is to program the processor's mmu to
translate
+addresses for the guest. Different translations are required at
different
+times:
+
+- when guest paging is disabled, we
On Sunday 18 April 2010 11:33:44 Espen Berg wrote:
All guest are Debian lenny with latest upstream kernel, hvm/kvm.
We are using kvm-clock as guest source clock.
cat /sys/devices/system/clocksource/clocksource0/current_clocksource
kvm-clock
I had to deactivate C1E (AMD CPUs) and use acpi
From: Xin Xiaohui xiaohui@intel.com
Add a device to utilize the vhost-net backend driver for
copy-less data transfer between guest FE and host NIC.
It pins the guest user space to the host memory and
provides proto_ops as sendmsg/recvmsg to vhost-net.
Signed-off-by: Xin Xiaohui
Michael,
Sorry, it's based on the suggestion to hook an iocb completion callback
to handle the iocb list in vhost-net.
Thanks
Xiaohui
-Original Message-
From: Xin, Xiaohui
Sent: Thursday, April 22, 2010 4:24 PM
To: m...@redhat.com
Cc: a...@arndb.de; net...@vger.kernel.org;
From: Xin Xiaohui xiaohui@intel.com
The vhost-net backend now only supports synchronous send/recv
operations. The patch provides multiple submits and asynchronous
notifications. This is needed for zero-copy case.
Signed-off-by: Xin Xiaohui xiaohui@intel.com
---
Michael,
Can't vhost
Am 21.04.2010 21:35, schrieb Stefan Hajnoczi:
A new iovec array is allocated when creating a merged write request.
This patch ensures that the iovec array is deleted in addition to its
qiov owner.
Reported-by: Leszek Urbanski tyg...@moo.pl
Signed-off-by: Stefan Hajnoczi
(2010/04/21 20:12), Avi Kivity wrote:
On 04/20/2010 01:59 PM, Takuya Yoshikawa wrote:
We will replace copy_to_user() to copy_in_user() when we move
the dirty bitmaps to user space.
But sadly, we have copy_in_user() only for 64 bits architectures.
So this function should work as a wrapper to
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
Hi all,
We have been implementing the prototype of Kemari for KVM, and we're sending
this message to share what we have now and TODO lists. Hopefully, we would like
to get early feedback to keep us in the right direction. Although advanced
Michael,
Yes, I think this packet split mode probably maps well to mergeable buffer
support. Note that
1. Not all devices support large packets in this way, others might map
to indirect buffers better
Do the indirect buffers accord to deal with the skb-frag_list?
So we have to figure out
(2010/04/21 20:26), Avi Kivity wrote:
r = 0;
@@ -1858,7 +1866,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
if (memslot-is_dirty) {
kvm_flush_remote_tlbs(kvm);
n = kvm_dirty_bitmap_bytes(memslot);
- memset(memslot-dirty_bitmap, 0, n);
+ clear_user(memslot-dirty_bitmap, n);
On Thu, Apr 22, 2010 at 04:57:56PM +0800, Xin, Xiaohui wrote:
Michael,
Yes, I think this packet split mode probably maps well to mergeable buffer
support. Note that
1. Not all devices support large packets in this way, others might map
to indirect buffers better
Do the indirect
Thanks, I can know basic rules about kvm/api .
(2010/04/21 20:46), Avi Kivity wrote:
+Type: vm ioctl
+Parameters: struct kvm_dirty_log (in/out)
+Returns: 0 on success, -1 on error
+
+/* for KVM_SWITCH_DIRTY_LOG */
+struct kvm_dirty_log {
+ __u32 slot;
+ __u32 padding;
Please put a flags
sp-unsync is bool now, so update trace event declaration.
Signed-off-by: Gui Jianfeng guijianf...@cn.fujitsu.com
---
arch/x86/kvm/mmutrace.h |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index 3851f1f..9966e80 100644
Take sp level into account when calculating quadrant, because only when
level == PT_PAGE_TABLE_LEVEL, quadrant is needed.
Signed-off-by: Gui Jianfeng guijianf...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c
On Thu, Apr 22, 2010 at 04:37:16PM +0800, xiaohui@intel.com wrote:
From: Xin Xiaohui xiaohui@intel.com
The vhost-net backend now only supports synchronous send/recv
operations. The patch provides multiple submits and asynchronous
notifications. This is needed for zero-copy case.
Hi.
Is it possible to have 32-bit color graphic on KVM virtual machines?
I installed a Windows virtual machine, but it allows me to configure
only 24-bit color display and it does not have any display driver
installed.
Is there a way to solve this problem?
Thank youv very much!
Bye.
--
To
-Original Message-
From: kvm-ow...@vger.kernel.org
[mailto:kvm-ow...@vger.kernel.org] On Behalf Of Zhang, Yanmin
Sent: Monday, April 19, 2010 1:33 PM
To: Avi Kivity
Cc: Ingo Molnar; Peter Zijlstra; Avi Kivity; Sheng Yang;
linux-ker...@vger.kernel.org; kvm@vger.kernel.org;
The patch introducing nested nmi handling had a bug. The
check does not belong to enable_nmi_window but must be in
nmi_allowed. This patch fixes this.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c | 16 +---
1 files changed, 9 insertions(+), 7 deletions(-)
This patch implements propagation of a failes guest vmrun
back into the guest instead of killing the whole guest.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/svm.c
This patch syncs cr0 and cr3 from the vmcb to the kvm state
before nested intercept handling is done. This allows to
simplify the vmexit path.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c | 15 ++-
1 files changed, 6 insertions(+), 9 deletions(-)
diff
This patch adds logic to kvm/x86 which allows to mark an
injected exception as reinjected. This allows to remove an
ugly hack from svm_complete_interrupts that prevented
exceptions from being reinjected at all in the nested case.
The hack was necessary because an reinjected exception into
the
This patch prevents MCE intercepts from being propagated
into the L1 guest if they happened in an L2 guest.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
This patch implements the reporting of the emulated SVM
features to userspace instead of the real hardware
capabilities. Every real hardware capability needs emulation
in nested svm so the old behavior was broken.
Cc: sta...@kernel.org
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
This patch adds the get_supported_cpuid callback to
kvm_x86_ops. It will be used in do_cpuid_ent to delegate the
decission about some supported cpuid bits to the
architecture modules.
Cc: sta...@kernel.org
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_host.h |
Hi Avi, Marcelo,
here is another set of nested svm fixes. They fix NMI code to make UP Hyper-V
root domain booting. The patches also add better handling for nested entry
failures and mce intercepts.
Also in this patchset are the fixes for the supported cpuid reporting for svm
features. These
This patch fixes a bug where a nested guest always went over
the same instruction because the rip was not advanced on a
nested vmexit.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c |8
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git
Dor Laor wrote:
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
Hi all,
We have been implementing the prototype of Kemari for KVM, and we're
sending
this message to share what we have now and TODO lists. Hopefully, we
would like
to get early feedback to keep us in the right direction. Although
This patch adds code to ask the kernel about the svm
features it supports for its guests and propagates them to
the guest. The new capability is necessary because the old
behavior of the kernel was to just return the host svm
features but every svm-feature needs emulation in the nested
svm kernel
On 04/22/2010 01:33 PM, Joerg Roedel wrote:
Hi Avi, Marcelo,
here is another set of nested svm fixes. They fix NMI code to make UP Hyper-V
root domain booting. The patches also add better handling for nested entry
failures and mce intercepts.
Also in this patchset are the fixes for the
On 04/22/2010 01:57 PM, Joerg Roedel wrote:
This patch adds code to ask the kernel about the svm
features it supports for its guests and propagates them to
the guest. The new capability is necessary because the old
behavior of the kernel was to just return the host svm
features but every
On 04/17/2010 11:41 AM, Lai Jiangshan wrote:
Fix bug of the exception path, free allocated vpid when fail
to create vcpu.
Applied, thanks.
--
error compiling committee.c: too many arguments to function
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the body of a
On Thu, Apr 22, 2010 at 02:07:14PM +0300, Avi Kivity wrote:
On 04/22/2010 01:57 PM, Joerg Roedel wrote:
This patch adds code to ask the kernel about the svm
features it supports for its guests and propagates them to
the guest. The new capability is necessary because the old
behavior of the
On 04/22/2010 03:02 PM, Joerg Roedel wrote:
Signed-off-by: Joerg Roedeljoerg.roe...@amd.com
---
qemu-kvm-x86.c | 14 --
1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/qemu-kvm-x86.c b/qemu-kvm-x86.c
index 748ff69..6eccd69 100644
--- a/qemu-kvm-x86.c
+++
On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote:
Dor Laor wrote:
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
Hi all,
We have been implementing the prototype of Kemari for KVM, and we're
sending
this message to share what we have now and TODO lists. Hopefully, we
would like
to get early
On Thu, Apr 22, 2010 at 03:13:14PM +0300, Avi Kivity wrote:
On 04/22/2010 03:02 PM, Joerg Roedel wrote:
We can't just take the host-cpuid
because most of the additional svm features need special emulation in
the kernel. Or do you think this should better be handled in
target-i386/cpuid.c?
Cleanup, mostly x86 oriented.
Patches against 'next' branch.
Naphtali Sprei (3):
qemu-kvm tests cleanup
qemu-kvm tests cleanup: adapt stringio test to kernel-mode run
qemu-kvm tests cleanup: Added printing for passing tests Also typo
fix
kvm/user/README| 23 ++
Mainly removed unused/unnecessary files and references to them
Signed-off-by: Naphtali Sprei nsp...@redhat.com
---
kvm/user/README| 23 ++
kvm/user/balloon_ctl.c | 92 --
kvm/user/bootstrap.lds | 15 -
kvm/user/config-x86-common.mak | 24 +--
Also use testdev for output, call exit to quit.
Currently, test reboots endlessly because of a triple-fault.
Need to run test with -no-reboot till issue fixed (in kvm ??)
Signed-off-by: Naphtali Sprei nsp...@redhat.com
---
kvm/user/config-x86-common.mak |2 +-
kvm/user/test/x86/stringio.S
Signed-off-by: Naphtali Sprei nsp...@redhat.com
---
kvm/user/test/x86/realmode.c | 106 +++--
1 files changed, 100 insertions(+), 6 deletions(-)
diff --git a/kvm/user/test/x86/realmode.c b/kvm/user/test/x86/realmode.c
index bfc2942..bc4ed97 100644
---
2010/4/22 Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp:
(2010/04/22 19:35), Yoshiaki Tamura wrote:
A trivial one would we to :
- do X online snapshots/sec
I currently don't have good numbers that I can share right now.
Snapshots/sec depends on what kind of workload is running, and if
On Tue, Apr 20, 2010 at 12:42:17PM -0700, Jeremy Fitzhardinge wrote:
On 04/20/2010 11:54 AM, Avi Kivity wrote:
On 04/20/2010 09:23 PM, Jeremy Fitzhardinge wrote:
On 04/20/2010 02:31 AM, Avi Kivity wrote:
btw, do you want this code in pvclock.c, or shall we keep it kvmclock
specific?
On 04/22/2010 03:28 PM, Joerg Roedel wrote:
Yes. -cpu host should take KVM_GET_SUPPORTED_CPUID output and loop it
back to the vcpu configuration, others just take the qemu configuration,
mask it with supported bits, and pass it back (see
check_features_against_host()).
Hmm, the plan
Yoshiaki Tamura wrote:
Dor Laor wrote:
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
Event tapping is the core component of Kemari, and it decides on which
event the
primary should synchronize with the secondary. The basic assumption
here is
that outgoing I/O operations are idempotent,
On Wed, Apr 21, 2010 at 09:38:39PM +0300, Gleb Natapov wrote:
On Wed, Apr 21, 2010 at 03:29:11PM -0300, Marcelo Tosatti wrote:
On Wed, Apr 21, 2010 at 08:58:48PM +0300, Gleb Natapov wrote:
On Wed, Apr 21, 2010 at 02:37:34PM -0300, Marcelo Tosatti wrote:
On Wed, Apr 21, 2010 at 08:12:27PM
This patch removes one padding byte and transform it into a flags
field. New versions of guests using pvclock will query these flags
upon each read.
Flags, however, will only be interpreted when the guest decides to.
It uses the pvclock_valid_flags function to signal that a specific
set of flags
Michael S. Tsirkin m...@redhat.com wrote on 04/22/2010 05:02:25 AM:
On Mon, Apr 19, 2010 at 03:12:19PM -0700, David L Stevens wrote:
This patch adds the mergeable RX buffers feature to vhost.
Signed-off-by: David L Stevens dlstev...@us.ibm.com
Looks pretty clean to me.
Could you send
On Mon, Apr 19, 2010 at 03:12:19PM -0700, David L Stevens wrote:
This patch adds the mergeable RX buffers feature to vhost.
Signed-off-by: David L Stevens dlstev...@us.ibm.com
BTW, which userspace should I use for testing this?
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On Thu, Apr 22, 2010 at 11:47:15AM -0600, David Stevens wrote:
Michael S. Tsirkin m...@redhat.com wrote on 04/22/2010 05:02:25 AM:
On Mon, Apr 19, 2010 at 03:12:19PM -0700, David L Stevens wrote:
This patch adds the mergeable RX buffers feature to vhost.
Signed-off-by: David L
Michael S. Tsirkin m...@redhat.com wrote on 04/22/2010 10:43:49 AM:
On Mon, Apr 19, 2010 at 03:12:19PM -0700, David L Stevens wrote:
This patch adds the mergeable RX buffers feature to vhost.
Signed-off-by: David L Stevens dlstev...@us.ibm.com
BTW, which userspace should I use for
On Thu, Apr 22, 2010 at 11:59:55AM -0600, David Stevens wrote:
Michael S. Tsirkin m...@redhat.com wrote on 04/22/2010 10:43:49 AM:
On Mon, Apr 19, 2010 at 03:12:19PM -0700, David L Stevens wrote:
This patch adds the mergeable RX buffers feature to vhost.
Signed-off-by: David L
Hi,
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Replaces byte-based phys_ram_dirty bitmap with four (MASTER, VGA,
CODE, MIGRATION) bit-based phys_ram_dirty bitmap. On allocation, it
sets all bits in the bitmap. It uses ffs() to convert DIRTY_FLAG to
DIRTY_IDX.
Modifies wrapper functions
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
For fool proof purpose, qemu_put_vector_parepare should be called
before qemu_put_vector. Then, if qemu_put_* functions except this is
called after qemu_put_vector_prepare, program will abort().
Signed-off-by: Yoshiaki
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Introduce RAMSaveIO to use writev for saving ram blocks, and modifies
ram_save_block() and ram_save_remaining() to use
cpu_physical_memory_get_dirty_range() to check multiple dirty and
non-dirty pages at once.
Signed-off-by: Yoshiaki
On Thu, Apr 22, 2010 at 02:13:04PM +0800, Xiao Guangrong wrote:
If have new mapping to the unsync page(i.e, add a new parent), just
update the page from sp-gfn but not write-protect gfn, and if need
create new shadow page form sp-gfn, we should sync it
Signed-off-by: Xiao Guangrong
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Signed-off-by: Yoshiaki Tamuratamura.yoshi...@lab.ntt.co.jp
I think the more appropriate thing to do is have
qemu_savevm_state_complete() not write QEMU_VM_EOF when doing a
continuous live migration.
You would then want qemu_loadvm_state()
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Make a 32bit entry after QEMU_VM_FILE_VERSION to recognize whether the
transfered data is QEMU_VM_FT_MODE or QEMU_VM_LIVE_MIGRATION_MODE.
I'd rather you encapsulate the current protocol as opposed to extending
it with a new version.
You
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Signed-off-by: Yoshiaki Tamuratamura.yoshi...@lab.ntt.co.jp
No need for this.
Regards,
Anthony Liguori
---
configure |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/configure b/configure
index
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
do_event_tap() is inserted to functions which actually fire outputs.
By synchronizing VMs before outputs are fired, we can failover to the
receiver upon failure. To save VM continuously, comment out assert()
on cpu_single_env temporally.
On Thu, Apr 22, 2010 at 09:11:30PM +0300, Gleb Natapov wrote:
On Thu, Apr 22, 2010 at 01:40:38PM -0300, Marcelo Tosatti wrote:
On Wed, Apr 21, 2010 at 09:38:39PM +0300, Gleb Natapov wrote:
On Wed, Apr 21, 2010 at 03:29:11PM -0300, Marcelo Tosatti wrote:
On Wed, Apr 21, 2010 at 08:58:48PM
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Hi all,
We have been implementing the prototype of Kemari for KVM, and we're sending
this message to share what we have now and TODO lists. Hopefully, we would like
to get early feedback to keep us in the right direction. Although advanced
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
QEMUFile currently doesn't support writev(). For sending multiple
data, such as pages, using writev() should be more efficient.
Signed-off-by: Yoshiaki Tamuratamura.yoshi...@lab.ntt.co.jp
Is there performance data that backs this up? Since
On Thu, Apr 22, 2010 at 04:40:30PM -0300, Marcelo Tosatti wrote:
On Thu, Apr 22, 2010 at 09:11:30PM +0300, Gleb Natapov wrote:
On Thu, Apr 22, 2010 at 01:40:38PM -0300, Marcelo Tosatti wrote:
On Wed, Apr 21, 2010 at 09:38:39PM +0300, Gleb Natapov wrote:
On Wed, Apr 21, 2010 at 03:29:11PM
On 04/22/2010 04:16 PM, Yoshiaki Tamura wrote:
2010/4/22 Dor Laordl...@redhat.com:
On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote:
Dor Laor wrote:
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
Hi all,
We have been implementing the prototype of Kemari for KVM, and we're
sending
this
I have a VM that is spinning (both vcpus at 100%). As I recall kvm_stat
has been deprecated in favor or ftrace. Is there a wiki page or document
that gives suggestions on this?
David
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To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to
I've been reading the x86's mmu.c recently and had been wondering
about something. Avi's recent mmu documentation (thanks!) seems to
have confirmed my understanding of how the shadow paging is supposed
to be working. In TDP mode, when mmu_alloc_roots() calls
kvm_mmu_get_page(), why does it pass
On Thu, Apr 22, 2010 at 3:53 PM, David S. Ahern daah...@cisco.com wrote:
I have a VM that is spinning (both vcpus at 100%). As I recall kvm_stat
has been deprecated in favor or ftrace. Is there a wiki page or document
that gives suggestions on this?
David
Documentation/trace/* is the place to
On 22.04.2010, at 08:09, Fernando Luis Vázquez Cao wrote:
On 04/22/2010 11:45 AM, Fernando Luis Vázquez Cao wrote:
On 04/21/2010 06:41 PM, Alexander Graf wrote:
On 21.04.2010, at 10:29, Fernando Luis Vázquez Cao wrote:
On 04/20/2010 08:03 PM, Takuya Yoshikawa wrote:
@@ -318,7 +318,7 @@
Jamie Lokier wrote:
Yoshiaki Tamura wrote:
Dor Laor wrote:
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
Event tapping is the core component of Kemari, and it decides on which
event the
primary should synchronize with the secondary. The basic assumption
here is
that outgoing I/O operations
Anthony Liguori wrote:
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Hi all,
We have been implementing the prototype of Kemari for KVM, and we're
sending
this message to share what we have now and TODO lists. Hopefully, we
would like
to get early feedback to keep us in the right direction.
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Hi all,
Just upgraded to 12.3 user space tools from 11.0, and now when I attempt
to netboot a guest, it appears that the pxe rom is timing out on dhcp
before the bridge has enough time to come up.
Is there a command line switch to set the dhcp
On 04/22/2010 03:11 AM, Glauber Costa wrote:
On Tue, Apr 20, 2010 at 12:42:17PM -0700, Jeremy Fitzhardinge wrote:
On 04/20/2010 11:54 AM, Avi Kivity wrote:
On 04/20/2010 09:23 PM, Jeremy Fitzhardinge wrote:
On 04/20/2010 02:31 AM, Avi Kivity wrote:
btw, do you
Although we can use *_le_bit() helpers to treat bitmaps le arranged,
having le bit offset calculation as a seperate macro gives us more freedom.
For example, KVM has le arranged dirty bitmaps for VGA, live-migration,
etc. and we use them in user space too. To avoid bitmap copies between
kernel
Anthony Liguori wrote:
On 04/22/2010 08:16 AM, Yoshiaki Tamura wrote:
2010/4/22 Dor Laordl...@redhat.com:
On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote:
Dor Laor wrote:
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
Hi all,
We have been implementing the prototype of Kemari for KVM, and
Anthony Liguori wrote:
Hi,
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Replaces byte-based phys_ram_dirty bitmap with four (MASTER, VGA,
CODE, MIGRATION) bit-based phys_ram_dirty bitmap. On allocation, it
sets all bits in the bitmap. It uses ffs() to convert DIRTY_FLAG to
DIRTY_IDX.
Anthony Liguori wrote:
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Signed-off-by: Yoshiaki Tamuratamura.yoshi...@lab.ntt.co.jp
No need for this.
OK.
Regards,
Anthony Liguori
---
configure | 8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/configure
Anthony Liguori wrote:
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Make a 32bit entry after QEMU_VM_FILE_VERSION to recognize whether the
transfered data is QEMU_VM_FT_MODE or QEMU_VM_LIVE_MIGRATION_MODE.
I'd rather you encapsulate the current protocol as opposed to extending
it with a new
Anthony Liguori wrote:
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
QEMUFile currently doesn't support writev(). For sending multiple
data, such as pages, using writev() should be more efficient.
Signed-off-by: Yoshiaki Tamuratamura.yoshi...@lab.ntt.co.jp
Is there performance data that
Marcelo Tosatti wrote:
role = vcpu-arch.mmu.base_role;
@@ -1332,12 +1336,16 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct
kvm_vcpu *vcpu,
hlist_for_each_entry_safe(sp, node, tmp, bucket, hash_link)
if (sp-gfn == gfn) {
if (sp-unsync)
Gui Jianfeng wrote:
Currently, in kvm_mmu_change_mmu_pages(kvm, page), used_pages-- is
performed after calling
kvm_mmu_zap_page() in spite of that whether page is actually reclaimed.
Because root sp won't be
reclaimed by kvm_mmu_zap_page(). So making kvm_mmu_zap_page() return total
Anthony Liguori wrote:
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
For fool proof purpose, qemu_put_vector_parepare should be called
before qemu_put_vector. Then, if qemu_put_* functions except this is
called after qemu_put_vector_prepare, program will abort().
Signed-off-by: Yoshiaki
Anthony Liguori wrote:
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
Signed-off-by: Yoshiaki Tamuratamura.yoshi...@lab.ntt.co.jp
I think the more appropriate thing to do is have
qemu_savevm_state_complete() not write QEMU_VM_EOF when doing a
continuous live migration.
You would then want
Anthony Liguori wrote:
On 04/21/2010 12:57 AM, Yoshiaki Tamura wrote:
do_event_tap() is inserted to functions which actually fire outputs.
By synchronizing VMs before outputs are fired, we can failover to the
receiver upon failure. To save VM continuously, comment out assert()
on cpu_single_env
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