On Tue, 2011-11-29 at 10:31 +0400, Cyrill Gorcunov wrote:
> On Mon, Nov 28, 2011 at 07:54:27PM +0200, Sasha Levin wrote:
> >
> > +/*
> > + * Each buffer in the virtqueues is actually a chain of descriptors. This
> > + * function returns the next descriptor in the chain, or vq->vring.num if
> >
When meeting request to write the cluster without copied flag,
allocate a new cluster and write original data with modification
to the new cluster. This also adds support for the writing operation
of the qcow2 compressed image. After testing, image file can pass
through "qemu-img check". The perfor
于 2011/11/29,星期二 14:38, Cam Macdonell 写道:
On Thu, Nov 17, 2011 at 10:50 PM, wrote:
From: Hongyong Zang
This patch, adds a PIO BAR3 for guest notifying qemu. And we find the new
notification way of PIO BAR3 reduces 30% time in comparison with the original
MMIO BAR0 way.
Come to think of it,
On Thu, Nov 17, 2011 at 10:50 PM, wrote:
> From: Hongyong Zang
>
> This patch, adds a PIO BAR3 for guest notifying qemu. And we find the new
> notification way of PIO BAR3 reduces 30% time in comparison with the original
> MMIO BAR0 way.
Come to think of it, should we bump the PIO to BAR4 so
On Mon, Nov 28, 2011 at 07:54:27PM +0200, Sasha Levin wrote:
>
> +/*
> + * Each buffer in the virtqueues is actually a chain of descriptors. This
> + * function returns the next descriptor in the chain, or vq->vring.num if
> we're
> + * at the end.
> + */
> +static unsigned next_desc(struct vri
On Tue, 2011-11-29 at 15:34 +1100, Alexey Kardashevskiy wrote:
> Hi!
>
> On 29/11/11 14:46, Alex Williamson wrote:
> > On Tue, 2011-11-29 at 12:52 +1100, Alexey Kardashevskiy wrote:
> >> Hi!
> >>
> >> I tried (successfully) to run it on POWER and while doing that I found
> >> some issues. I'll tr
There are many places where we drop large spte and we are always doing
much the same as drop_large_spte().
To avoid these duplications, this patch makes drop_large_spte() more
generically usable: it now takes an argument to know if it must flush
the remote tlbs and returns true or false depending
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/mmu.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 09da963..5e761ff 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1803,6 +1803,7 @@ static void drop_large_spte
There is only one user of it and for_each_set_bit() does the same.
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/mmu.c |7 +--
1 files changed, 1 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d737443..09da963 100644
--- a/arch/x86/kvm/mmu.c
Made when I was reading mmu code.
Takuya
BTW, is threre any good way to test large page functionality?
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Hi!
On 29/11/11 14:46, Alex Williamson wrote:
> On Tue, 2011-11-29 at 12:52 +1100, Alexey Kardashevskiy wrote:
>> Hi!
>>
>> I tried (successfully) to run it on POWER and while doing that I found some
>> issues. I'll try to
>> explain them in separate mails.
>
> Great!
>
>> IOMMU domain setup. O
On 11/29/2011 06:33 AM, Jason Baron wrote:
> hmmm..this always going to do a call to 'kvm_mmu_audit' and then return.
> I think you want to avoid the function call altogether. You could do
> something like:
>
> #define kvm_mmu_audit()
> if (static_branch((&mmu_audit_key))) {
>
On Tue, 2011-11-29 at 13:01 +1100, Alexey Kardashevskiy wrote:
> Hi all,
>
> Another problem I hit on POWER - MSI interrupts allocation. The existing VFIO
> does not expect a PBH
> to support less interrupts that a device might request. In my case, PHB's
> limit is 8 interrupts
> while my test c
On Tue, 2011-11-29 at 12:52 +1100, Alexey Kardashevskiy wrote:
> Hi!
>
> I tried (successfully) to run it on POWER and while doing that I found some
> issues. I'll try to
> explain them in separate mails.
Great!
> IOMMU domain setup. On POWER, the linux drivers capable of DMA transfer want
> t
Hi all again,
It was actually the very first problem - endianess :-)
I am still not sure what format is better for cached config space or whether we
should cache it all.
Also, as Benh already mentioned, vfio_virt_init reads a config space to a cache
by pci_read_config_dword
for the whole space
Hi all,
Another problem I hit on POWER - MSI interrupts allocation. The existing VFIO
does not expect a PBH
to support less interrupts that a device might request. In my case, PHB's limit
is 8 interrupts
while my test card (10Gb ethernet CXGB3) wants 9. Below are the patches to
demonstrate the
Hi!
I tried (successfully) to run it on POWER and while doing that I found some
issues. I'll try to
explain them in separate mails.
IOMMU domain setup. On POWER, the linux drivers capable of DMA transfer want to
know
a DMA window, i.e. its start and length in the PHB address space. This comes
From: Liu Yu
Signed-off-by: Liu Yu
[scottw...@freescale.com: made mas2 64-bit, and added mas8 init]
Signed-off-by: Scott Wood
---
arch/powerpc/kvm/e500_tlb.c | 10 ---
arch/powerpc/kvm/trace.h| 57 +++
2 files changed, 63 insertions(+), 4 del
The hardware maintains a per-set next victim hint. Using this
reduces conflicts, especially on e500v2 where a single guest
TLB entry is mapped to two shadow TLB entries (user and kernel).
We want those two entries to go to different TLB ways.
sesel is now only used for TLB1.
Reported-by: Liu Yu
The associativity, not just total size, can differ from the host
hardware.
Signed-off-by: Scott Wood
---
arch/powerpc/kvm/e500_tlb.c | 19 ++-
1 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index 9cd124a
Liu Yu (1):
KVM: booke: Add booke206 TLB trace
Scott Wood (2):
KVM: PPC: e500: Fix TLBnCFG in KVM_CONFIG_TLB
KVM: PPC: e500: use hardware hint when loading TLB0 entries
arch/powerpc/include/asm/mmu-book3e.h |1 +
arch/powerpc/kvm/e500_tlb.c | 97
- Message from Simon Wilson -
Date: Fri, 25 Nov 2011 20:34:47 +1000
From: Simon Wilson
Subject: Improving RAID5 write performance in a KVM VM
To: kvm@vger.kernel.org
Good afternoon list.
I have a CentOS 6 server running six KVM VMs, and am struggling with
poor disk w
On Mon, Nov 28, 2011 at 08:41:00PM +0800, Xiao Guangrong wrote:
> +static void kvm_mmu_audit(struct kvm_vcpu *vcpu, int point)
> {
> static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 10);
>
> - if (!__ratelimit(&ratelimit_state))
> - return;
> + if (static_branch((&
On 28.11.2011, at 21:59, Stuart Yoder wrote:
> On Fri, Nov 18, 2011 at 7:54 AM, Alexander Graf wrote:
>>
>> On 17.11.2011, at 23:39, Scott Wood wrote:
>>
>>> Decrementers are now properly driven by TCR/TSR, and the guest
>>> has full read/write access to these registers.
>>>
>>> The decrement
On Mon, 2011-11-28 at 22:17 +0200, Sasha Levin wrote:
> On Mon, 2011-11-28 at 20:49 +0200, Pekka Enberg wrote:
> > On Mon, Nov 28, 2011 at 7:54 PM, Sasha Levin
> > wrote:
> > > Indirect buffers are ring descriptors which point to more (even more)
> > > descriptors.
> > >
> > > This can be used to
On Fri, Nov 18, 2011 at 7:54 AM, Alexander Graf wrote:
>
> On 17.11.2011, at 23:39, Scott Wood wrote:
>
>> Decrementers are now properly driven by TCR/TSR, and the guest
>> has full read/write access to these registers.
>>
>> The decrementer keeps ticking (and setting the TSR bit) regardless of
>>
On Mon, 2011-11-28 at 20:49 +0200, Pekka Enberg wrote:
> On Mon, Nov 28, 2011 at 7:54 PM, Sasha Levin wrote:
> > Indirect buffers are ring descriptors which point to more (even more)
> > descriptors.
> >
> > This can be used to increase the effective ring capacity, which helps the
> > guest to bat
On Mon, Nov 28, 2011 at 7:34 AM, Asias He wrote:
> There are at most bdev->reqs[VIRTIO_BLK_QUEUE_SIZE] outstanding requests
> at any time. We can simply use the head of each request to fetch the
> right 'struct blk_dev_req' in bdev->reqs[].
>
> So, we can eliminate the list and lock operations wh
On Mon, Nov 28, 2011 at 7:54 PM, Sasha Levin wrote:
> Indirect buffers are ring descriptors which point to more (even more)
> descriptors.
>
> This can be used to increase the effective ring capacity, which helps the
> guest to batch large requests - very useful for blk devices.
>
> This patch als
Indirect buffers are ring descriptors which point to more (even more)
descriptors.
This can be used to increase the effective ring capacity, which helps the
guest to batch large requests - very useful for blk devices.
This patch also enables indirect buffers for virtio-net and virtio-blk.
The pa
* Adds base _TestCpuShare
* Adds TestCpuShare10 - cpu.shares ratio is 1:10
* Adds TestCpuShare50 - cpu.shares ratio is 1:1
* cgroup_common - incorrect lookup for mounted cgroups
* kvm cgroup - sort the executed tests (per expression)
* minor bugfixies
Tests the cpu.share cgroup capability. I
Hi guys,
I have a new kvm cgroup test for you.
This time it's in cpu cgroup and it uses cpu.shares capability. It modifies
the number of shares/time_slices which each process gets from the scheduler
As the verification is kind of tricky I'm testing only three different
scenerios and only symetric
On 11/28/2011 04:35 PM, Anthony Liguori wrote:
>> (somewhat related) memory API conversion queue merge plan
>
>
> No need to wait until tomorrow to discuss it, I guess.
>
> 1.1 will open up on Friday. I was going to make the suggestion that
> if anyone has more than 50 non-trivial patches queued i
On 11/28/2011 02:43 PM, Xiao Guangrong wrote:
> The unsync code should be stable now, maybe it is the time to remove this
> parameter to cleanup the code a little bit
>
Thanks, all applied.
--
error compiling committee.c: too many arguments to function
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On 11/28/2011 02:56 PM, Gleb Natapov wrote:
> On Mon, Nov 28, 2011 at 08:41:38PM +0800, Xiao Guangrong wrote:
> > KVM_EXIT_HYPERCALL is not used anymore, so remove the code
> >
> Why not remove the define as well?
>
>
It's in kvm.h, best not to touch it in case someone has
case KVM_EXIT_HYPERC
On 11/28/2011 08:30 AM, Avi Kivity wrote:
On 11/28/2011 04:28 PM, Anthony Liguori wrote:
On 11/28/2011 08:24 AM, Juan Quintela wrote:
Hi
Please send in any agenda items you are interested in covering.
- 1.1 development window logistics
(somewhat related) memory API conversion queue merge
On 11/28/2011 04:28 PM, Anthony Liguori wrote:
> On 11/28/2011 08:24 AM, Juan Quintela wrote:
>>
>> Hi
>>
>> Please send in any agenda items you are interested in covering.
>
> - 1.1 development window logistics
(somewhat related) memory API conversion queue merge plan
--
error compiling committ
On 11/28/2011 08:24 AM, Juan Quintela wrote:
Hi
Please send in any agenda items you are interested in covering.
- 1.1 development window logistics
Regards,
Anthony Liguori
Thanks, Juan.
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Hi
Please send in any agenda items you are interested in covering.
Thanks, Juan.
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Hi All,
This is KVM test result against kvm.git
1db6efe35afcda0bd05e5f4449ea814a9071da7f based on 3.2.0-rc2, and qemu-kvm.git
9ac357fdfc51bac582a61f95b32565648b844878.
We found no new bug and 1 bug was fixed during our test.
The fixed bug is the SR-IOV detachment issue (qemu BZ #875723). Alex (@
The inline assembly constraints did not specify ax as an output,
confusing the compiler. Rewrite the test to properly specify all
outputs.
Signed-off-by: Avi Kivity
---
x86/emulator.c | 89 +--
1 files changed, 34 insertions(+), 55 deletions
On Mon, Nov 28, 2011 at 08:41:38PM +0800, Xiao Guangrong wrote:
> KVM_EXIT_HYPERCALL is not used anymore, so remove the code
>
Why not remove the define as well?
> Signed-off-by: Xiao Guangrong
> ---
> arch/x86/kvm/x86.c |4
> 1 files changed, 0 insertions(+), 4 deletions(-)
>
> diff
On Sun, Nov 27, 2011 at 01:26:48PM +0800, Cong Wang wrote:
>
> Signed-off-by: Cong Wang
Acked-by: Herbert Xu
Thanks,
--
Email: Herbert Xu
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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The unsync code should be stable now, maybe it is the time to remove this
parameter to cleanup the code a little bit
Signed-off-by: Xiao Guangrong
---
Documentation/kernel-parameters.txt |3 ---
arch/x86/kvm/mmu.c |5 -
2 files changed, 0 insertions(+), 8 deletions(-
Move the mmu code in kvm_arch_vcpu_init() to kvm_mmu_create()
Signed-off-by: Xiao Guangrong
---
arch/x86/include/asm/kvm_host.h |6 ++
arch/x86/kvm/mmu.c |6 +-
arch/x86/kvm/x86.c | 11 +--
3 files changed, 12 insertions(+), 11 deletions(-)
di
KVM_EXIT_HYPERCALL is not used anymore, so remove the code
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/x86.c |4
1 files changed, 0 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d54746c..7b6fd72 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x8
The tracepoint is only used to audit mmu code, it should not be exposed to
user, let us replace it with jump-lable
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/mmu.c | 16 +++-
arch/x86/kvm/mmu_audit.c | 28 +---
arch/x86/kvm/mmutrace.h|
Export these two symbols, they will be used by mmu audit
Signed-off-by: Xiao Guangrong
---
kernel/jump_label.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index bbdfe2a..7d3d452 100644
--- a/kernel/jump_label.c
+++ b/kernel/
On 11/27/2011 07:26 AM, Cong Wang wrote:
> Signed-off-by: Cong Wang
> ---
> arch/x86/kvm/lapic.c |8
> arch/x86/kvm/paging_tmpl.h |4 ++--
> arch/x86/kvm/x86.c |8
>
The kvm parts are:
Acked-by: Avi Kivity
--
error compiling
On 11/28/2011 11:52 AM, Avi Kivity wrote:
> On 11/28/2011 11:20 AM, Sasha Levin wrote:
> > This patch cleans and simplifies kvm_dev_ioctl_get_supported_cpuid by using
> > a table
> > instead of duplicating code as Avi suggested.
> >
> > This patch also fixes a bug where kvm_dev_ioctl_get_supported
On 11/28/2011 11:20 AM, Sasha Levin wrote:
> This patch cleans and simplifies kvm_dev_ioctl_get_supported_cpuid by using a
> table
> instead of duplicating code as Avi suggested.
>
> This patch also fixes a bug where kvm_dev_ioctl_get_supported_cpuid would
> return
> -E2BIG when amount of entries
On 11/28/2011 07:10 AM, Liu, Jinsong wrote:
> From 8bb5d052825149c211afa92458912bc49a50ee2f Mon Sep 17 00:00:00 2001
> From: Liu, Jinsong
> Date: Mon, 28 Nov 2011 03:55:19 -0800
> Subject: [PATCH] X86: expose latest Intel cpu new features to guest
>
> Intel latest cpu add 6 new features, refer
>
This patch cleans and simplifies kvm_dev_ioctl_get_supported_cpuid by using a
table
instead of duplicating code as Avi suggested.
This patch also fixes a bug where kvm_dev_ioctl_get_supported_cpuid would return
-E2BIG when amount of entries passed was just right.
Cc: Avi Kivity
Cc: Marcelo Tosa
On Mon, 2011-11-28 at 11:25 +1030, Rusty Russell wrote:
> I'd like to see kvmtools remove support for legacy mode altogether,
> but they probably have existing users.
While we can't simply remove it right away, instead of mixing our
implementation for both legacy and new spec in the same code we c
On Mon, Nov 28, 2011 at 03:16:01PM +0800, Liu ping fan wrote:
> On Sun, Nov 27, 2011 at 6:50 PM, Gleb Natapov wrote:
> > On Sun, Nov 27, 2011 at 12:36:55PM +0200, Avi Kivity wrote:
> >> On 11/27/2011 04:42 AM, Liu Ping Fan wrote:
> >> > From: Liu Ping Fan
> >> >
> >> > The vcpu can be safely rele
On Mon, Nov 28, 2011 at 11:25:43AM +1030, Rusty Russell wrote:
> > > But I'm *terrified* of making the spec more complex;
> >
> > All you do is move stuff around. Why do you think it simplifies the spec
> > so much?
>
> No, but it reduces the yuk factor. Which has been important to adoption.
So
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