On Thu, 2012-07-19 at 08:00 +0200, Paolo Bonzini wrote:
> Il 18/07/2012 21:12, Anthony Liguori ha scritto:
> Windows does this with a points system and I do believe that INQUIRY
> > responses from any local disks are included in this tally.
>
> INQUIRY responses (at least vendor/product/type) sho
Il 19/07/2012 09:28, James Bottomley ha scritto:
>> > INQUIRY responses (at least vendor/product/type) should not change.
> INQUIRY responses often change for arrays because a firmware upgrade
> enables new features and new features have to declare themselves,
> usually in the INQUIRY data. What y
NACK. Found bugs.
On Thu, Jul 12, 2012 at 02:56:36PM +0300, Gleb Natapov wrote:
> With this patches loading 100M initrd takes ~10s instead of ~40s without.
>
> Changelog:
> v2->v3
> - Fix incorrect size parameter for linearize() notices by Marcelo.
> - Get rid of linearize() callback in emul
With this patches loading 100M initrd takes ~10s instead of ~40s without.
Changelog:
v3->v4:
- check rcx for zero after applying address mask
- check for page boundary after linearizing address
v2->v3
- Fix incorrect size parameter for linearize() notices by Marcelo.
- Get rid of linear
Current code assumes that IO exit was due to instruction emulation
and handles execution back to emulator directly. This patch adds new
userspace IO exit completion callback that can be set by any other code
that caused IO exit to userspace.
Signed-off-by: Gleb Natapov
---
arch/x86/include/asm/k
Signed-off-by: Gleb Natapov
---
arch/x86/include/asm/kvm_emulate.h | 22 ++
arch/x86/kvm/emulate.c |4 +++-
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h
b/arch/x86/include/asm/kvm_emulate.h
index 1ac46c
The functions will be used outside of the emulator.
Signed-off-by: Gleb Natapov
---
arch/x86/include/asm/kvm_host.h | 25 +
arch/x86/kvm/emulate.c | 15 ++-
2 files changed, 27 insertions(+), 13 deletions(-)
diff --git a/arch/x86/include/asm/kvm_
The function will be used outside of the emulator.
Signed-off-by: Gleb Natapov
---
arch/x86/include/asm/kvm_emulate.h | 16 +
arch/x86/kvm/emulate.c | 114
2 files changed, 79 insertions(+), 51 deletions(-)
diff --git a/arch/x86/include/as
"rep ins" emulation is going through emulator now. This is slow because
emulator knows how to write back only one datum at a time. This patch
provides fast path for the instruction in certain conditions. The
conditions are: DF flag is not set, destination memory is RAM and single
datum does not cro
On Wed, Jul 18, 2012 at 05:20:40PM -0600, Alex Williamson wrote:
> On Thu, 2012-07-19 at 01:49 +0300, Michael S. Tsirkin wrote:
> > On Wed, Jul 18, 2012 at 04:26:41PM -0600, Alex Williamson wrote:
> > > On Thu, 2012-07-19 at 00:52 +0300, Michael S. Tsirkin wrote:
> > > > When more than 1 source id
On Thu, Jul 19, 2012 at 01:44:59AM +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 04:16:14PM -0600, Alex Williamson wrote:
> > On Thu, 2012-07-19 at 00:52 +0300, Michael S. Tsirkin wrote:
> > > When more than 1 source id is in use for the same GSI, we have the
> > > following race relat
On Thu, Jul 19, 2012 at 01:11:53AM +0300, Michael S. Tsirkin wrote:
> This creates a way to detect when kvm_set_irq(...,0) was run
> twice with the same source id by returning 0 in this case.
>
> Signed-off-by: Michael S. Tsirkin
> ---
>
> This is on top of my bugfix patch. Uncompiled and untes
On Wed, Jul 18, 2012 at 05:20:40PM -0600, Alex Williamson wrote:
> On Thu, 2012-07-19 at 01:49 +0300, Michael S. Tsirkin wrote:
> > On Wed, Jul 18, 2012 at 04:26:41PM -0600, Alex Williamson wrote:
> > > On Thu, 2012-07-19 at 00:52 +0300, Michael S. Tsirkin wrote:
> > > > When more than 1 source id
On Wed, Jul 18, 2012 at 4:40 PM, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 04:07:45PM +0100, Stefan Hajnoczi wrote:
>> Optimize for the MSI-X enabled and vector unmasked case where it is
>> possible to issue the KVM ioctl() directly instead of using irqfd.
>
> Why? Is an ioctl faster?
I
On Wed, Jul 18, 2012 at 05:22:42PM -0600, Alex Williamson wrote:
> I hate reviewing code
> > > where I have to differentiate 'l' vs '1'.
> >
> > l is an illegal variable name? Switch to a different font.
>
> WTF
Really, you should use a font where these differ. I currently use
Monospace but the
On Wed, Jul 18, 2012 at 7:29 PM, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 04:07:33PM +0100, Stefan Hajnoczi wrote:
>> Support >4 GB physical memory accesses.
>>
>> Signed-off-by: Stefan Hajnoczi
>
> Need some sane APIs, this is just too scary.
Yes, this prototype has (at least) two la
On Thu, Jul 19, 2012 at 10:14 AM, Stefan Hajnoczi wrote:
> On Wed, Jul 18, 2012 at 7:29 PM, Michael S. Tsirkin wrote:
>> On Wed, Jul 18, 2012 at 04:07:33PM +0100, Stefan Hajnoczi wrote:
>>> Support >4 GB physical memory accesses.
>>>
>>> Signed-off-by: Stefan Hajnoczi
>>
>> Need some sane APIs,
On Thu, Jul 19, 2012 at 10:53:37AM +0300, Gleb Natapov wrote:
> On Thu, Jul 19, 2012 at 01:11:53AM +0300, Michael S. Tsirkin wrote:
> > This creates a way to detect when kvm_set_irq(...,0) was run
> > twice with the same source id by returning 0 in this case.
> >
> > Signed-off-by: Michael S. Tsir
From: Raghavendra K T
Currently, on a large vcpu guests, there is a high probability of
yielding to the same vcpu who had recently done a pause-loop exit or
cpu relax intercepted. Such a yield can lead to the vcpu spinning
again and hence degrade the performance.
The patchset keeps track of the
On Thu, Jul 19, 2012 at 10:11:49AM +0100, Stefan Hajnoczi wrote:
> On Wed, Jul 18, 2012 at 4:40 PM, Michael S. Tsirkin wrote:
> > On Wed, Jul 18, 2012 at 04:07:45PM +0100, Stefan Hajnoczi wrote:
> >> Optimize for the MSI-X enabled and vector unmasked case where it is
> >> possible to issue the KVM
On Thu, Jul 19, 2012 at 12:17:19PM +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 19, 2012 at 10:53:37AM +0300, Gleb Natapov wrote:
> > On Thu, Jul 19, 2012 at 01:11:53AM +0300, Michael S. Tsirkin wrote:
> > > This creates a way to detect when kvm_set_irq(...,0) was run
> > > twice with the same so
On 07/19/2012 12:16 PM, Stefan Hajnoczi wrote:
> On Thu, Jul 19, 2012 at 10:14 AM, Stefan Hajnoczi wrote:
>> On Wed, Jul 18, 2012 at 7:29 PM, Michael S. Tsirkin wrote:
>>> On Wed, Jul 18, 2012 at 04:07:33PM +0100, Stefan Hajnoczi wrote:
Support >4 GB physical memory accesses.
Signe
On Thu, Jul 19, 2012 at 12:21:07PM +0300, Gleb Natapov wrote:
> On Thu, Jul 19, 2012 at 12:17:19PM +0300, Michael S. Tsirkin wrote:
> > On Thu, Jul 19, 2012 at 10:53:37AM +0300, Gleb Natapov wrote:
> > > On Thu, Jul 19, 2012 at 01:11:53AM +0300, Michael S. Tsirkin wrote:
> > > > This creates a way
On Thu, Jul 19, 2012 at 12:33:29PM +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 19, 2012 at 12:21:07PM +0300, Gleb Natapov wrote:
> > On Thu, Jul 19, 2012 at 12:17:19PM +0300, Michael S. Tsirkin wrote:
> > > On Thu, Jul 19, 2012 at 10:53:37AM +0300, Gleb Natapov wrote:
> > > > On Thu, Jul 19, 201
On Wed, Jul 18, 2012 at 4:49 PM, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 04:07:27PM +0100, Stefan Hajnoczi wrote:
>> This series implements a dedicated thread for virtio-blk processing using
>> Linux
>> AIO for raw image files only. It is based on qemu-kvm.git a0bc8c3 and
>> somewha
Currently, on a large vcpu guests, there is a high probability of
yielding to the same vcpu who had recently done a pause-loop exit or
cpu relax intercepted. Such a yield can lead to the vcpu spinning
again and hence degrade the performance.
The patchset keeps track of the pause loop exit/cpu rela
On 07/17/2012 05:44 PM, Xiao Guangrong wrote:
> Introduce readonly_fault_pfn, in the later patch, it indicates failure
> when we try to get a writable pfn from the readonly memslot
>
> +
> inline int kvm_is_mmio_pfn(pfn_t pfn)
> {
> if (pfn_valid(pfn)) {
> @@ -949,13 +952,15 @@ EXPORT_SYMB
On 07/17/2012 05:45 PM, Xiao Guangrong wrote:
> In the later patch, it indicates failure when we try to get a writable
> hva from the readonly slot
>
> Signed-off-by: Xiao Guangrong
> ---
> virt/kvm/kvm_main.c | 12 +++-
> 1 files changed, 11 insertions(+), 1 deletions(-)
>
> diff --g
On Thu, Jul 19, 2012 at 12:41:24PM +0300, Gleb Natapov wrote:
> On Thu, Jul 19, 2012 at 12:33:29PM +0300, Michael S. Tsirkin wrote:
> > On Thu, Jul 19, 2012 at 12:21:07PM +0300, Gleb Natapov wrote:
> > > On Thu, Jul 19, 2012 at 12:17:19PM +0300, Michael S. Tsirkin wrote:
> > > > On Thu, Jul 19, 201
On 07/19/2012 10:40 AM, Gleb Natapov wrote:
> The function will be used outside of the emulator.
>
> Signed-off-by: Gleb Natapov
> ---
> arch/x86/include/asm/kvm_emulate.h | 16 +
> arch/x86/kvm/emulate.c | 114
>
> 2 files changed, 79 ins
On 07/19/2012 10:40 AM, Gleb Natapov wrote:
> "rep ins" emulation is going through emulator now. This is slow because
> emulator knows how to write back only one datum at a time. This patch
> provides fast path for the instruction in certain conditions. The
> conditions are: DF flag is not set, des
On 07/19/2012 10:40 AM, Gleb Natapov wrote:
> The functions will be used outside of the emulator.
>
> Signed-off-by: Gleb Natapov
> ---
> arch/x86/include/asm/kvm_host.h | 25 +
> arch/x86/kvm/emulate.c | 15 ++-
> 2 files changed, 27 insertions(+
When more than 1 source id is in use for the same GSI, we have the
following race related to handling irq_states race:
CPU 0 clears bit 0. CPU 0 read irq_state as 0. CPU 1 sets level to 1.
CPU 1 calls kvm_ioapic_set_irq(1). CPU 0 calls kvm_ioapic_set_irq(0).
Now ioapic thinks the level is 0 but ir
On Thu, Jul 19, 2012 at 01:42:31PM +0300, Avi Kivity wrote:
> On 07/19/2012 10:40 AM, Gleb Natapov wrote:
> > The functions will be used outside of the emulator.
> >
> > Signed-off-by: Gleb Natapov
> > ---
> > arch/x86/include/asm/kvm_host.h | 25 +
> > arch/x86/kvm/emu
On Thu, Jul 19, 2012 at 01:32:59PM +0300, Avi Kivity wrote:
> On 07/19/2012 10:40 AM, Gleb Natapov wrote:
> > The function will be used outside of the emulator.
> >
> > Signed-off-by: Gleb Natapov
> > ---
> > arch/x86/include/asm/kvm_emulate.h | 16 +
> > arch/x86/kvm/emulate.c
On Thu, Jul 19, 2012 at 01:26:48PM +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 19, 2012 at 12:41:24PM +0300, Gleb Natapov wrote:
> > On Thu, Jul 19, 2012 at 12:33:29PM +0300, Michael S. Tsirkin wrote:
> > > On Thu, Jul 19, 2012 at 12:21:07PM +0300, Gleb Natapov wrote:
> > > > On Thu, Jul 19, 201
Use PIC_NUM_PINS instead of hard-coded 16 for pic pins.
Signed-off-by: Michael S. Tsirkin
---
arch/x86/kvm/irq.h | 2 +-
virt/kvm/irq_comm.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 2086f2b..2d03568 100644
--- a/arch/
On Thu, Jul 19, 2012 at 01:37:32PM +0300, Avi Kivity wrote:
> On 07/19/2012 10:40 AM, Gleb Natapov wrote:
> > "rep ins" emulation is going through emulator now. This is slow because
> > emulator knows how to write back only one datum at a time. This patch
> > provides fast path for the instruction
On Thu, Jul 19, 2012 at 01:54:53PM +0300, Gleb Natapov wrote:
> On Thu, Jul 19, 2012 at 01:26:48PM +0300, Michael S. Tsirkin wrote:
> > On Thu, Jul 19, 2012 at 12:41:24PM +0300, Gleb Natapov wrote:
> > > On Thu, Jul 19, 2012 at 12:33:29PM +0300, Michael S. Tsirkin wrote:
> > > > On Thu, Jul 19, 201
We validate irq pin number when routing is setup, so
code handling illegal irq # in pic and ioapic on each injection
is never called.
Drop it.
Signed-off-by: Michael S. Tsirkin
---
Note: this is on top of
[PATCHv2] kvm: fix race with level interrupts
as these patches touch the same code.
On Thu, Jul 19, 2012 at 02:12:13PM +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 19, 2012 at 01:54:53PM +0300, Gleb Natapov wrote:
> > On Thu, Jul 19, 2012 at 01:26:48PM +0300, Michael S. Tsirkin wrote:
> > > On Thu, Jul 19, 2012 at 12:41:24PM +0300, Gleb Natapov wrote:
> > > > On Thu, Jul 19, 201
On Thu, Jul 19, 2012 at 02:12:13PM +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 19, 2012 at 01:54:53PM +0300, Gleb Natapov wrote:
> > On Thu, Jul 19, 2012 at 01:26:48PM +0300, Michael S. Tsirkin wrote:
> > > On Thu, Jul 19, 2012 at 12:41:24PM +0300, Gleb Natapov wrote:
> > > > On Thu, Jul 19, 201
Marcelo your awesome ! thank fixed it.
Thank you.
Is this an issue just with centos kernel or is rhel effected also ?
i.e shall I submit a bugzilla report?
Regards
On 18 July 2012 22:06, Marcelo Tosatti wrote:
> On Wed, Jul 11, 2012 at 10:54:34PM +0100, Morgan Cox wrote:
>> Hi
>>
>> I have an
On Thu, Jul 19, 2012 at 02:25:29PM +0300, Gleb Natapov wrote:
> On Thu, Jul 19, 2012 at 02:12:13PM +0300, Michael S. Tsirkin wrote:
> > On Thu, Jul 19, 2012 at 01:54:53PM +0300, Gleb Natapov wrote:
> > > On Thu, Jul 19, 2012 at 01:26:48PM +0300, Michael S. Tsirkin wrote:
> > > > On Thu, Jul 19, 201
On Thu, 2012-07-19 at 12:15 +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 05:22:42PM -0600, Alex Williamson wrote:
> > I hate reviewing code
> > > > where I have to differentiate 'l' vs '1'.
> > >
> > > l is an illegal variable name? Switch to a different font.
> >
> > WTF
>
> Real
On Thu, Jul 19, 2012 at 06:06:31AM -0600, Alex Williamson wrote:
> On Thu, 2012-07-19 at 12:15 +0300, Michael S. Tsirkin wrote:
> > On Wed, Jul 18, 2012 at 05:22:42PM -0600, Alex Williamson wrote:
> > > I hate reviewing code
> > > > > where I have to differentiate 'l' vs '1'.
> > > >
> > > > l is
On Thu, 2012-07-19 at 12:07 +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 05:20:40PM -0600, Alex Williamson wrote:
> > On Thu, 2012-07-19 at 01:49 +0300, Michael S. Tsirkin wrote:
> > > On Wed, Jul 18, 2012 at 04:26:41PM -0600, Alex Williamson wrote:
> > > > On Thu, 2012-07-19 at 00:52
On 07/15/12 20:52, Chris Clayton wrote:
On 07/11/12 08:22, Gleb Natapov wrote:
On Wed, Jul 11, 2012 at 08:18:17AM +0100, Chris Clayton wrote:
On 07/11/12 08:12, Gleb Natapov wrote:
On Wed, Jul 11, 2012 at 08:09:42AM +0100, Chris Clayton wrote:
Ping.
Have I committed a bug-reporting sin in th
Instead of populating the the entire register file, read in registers
as they are accessed, and write back only the modified ones. This
saves a VMREAD and VMWRITE on Intel (for rsp, since it is not usually
used during emulation), and a two 128-byte copies for the registers.
Signed-off-by: Avi Kiv
On 07/19/2012 03:14 PM, Chris Clayton wrote:
>> Change of diagnostics, unfortunately. qemu-kvm-1.0.1 can, in fact, crash
>> on 3.5.0-rc6 (and rc7). I didn't get it earlier because it takes many
>> times more invocations before the crash occurs with 1.0.1 and I haven't
>> used qemu-kvm much in the
On Thu, Jul 19, 2012 at 06:11:15AM -0600, Alex Williamson wrote:
> On Thu, 2012-07-19 at 12:07 +0300, Michael S. Tsirkin wrote:
> > On Wed, Jul 18, 2012 at 05:20:40PM -0600, Alex Williamson wrote:
> > > On Thu, 2012-07-19 at 01:49 +0300, Michael S. Tsirkin wrote:
> > > > On Wed, Jul 18, 2012 at 04:
On 07/19/2012 01:51 PM, Gleb Natapov wrote:
>> > +int x86_linearize(struct x86_linearize_params *p, ulong *linear)
>> > {
>> > - struct desc_struct desc;
>> > - bool usable;
>> >ulong la;
>> >u32 lim;
>> > - u16 sel;
>> >unsigned cpl, rpl;
>> >
>> > - la = seg_base(ctxt, addr.se
On Thu, Jul 19, 2012 at 03:52:15PM +0300, Avi Kivity wrote:
> On 07/19/2012 01:51 PM, Gleb Natapov wrote:
>
> >> > +int x86_linearize(struct x86_linearize_params *p, ulong *linear)
> >> > {
> >> > -struct desc_struct desc;
> >> > -bool usable;
> >> > ulong la;
> >> >
Asias He writes:
> vhost-blk is a in kernel virito-blk device accelerator.
>
> This patch is based on Liu Yuan's implementation with various
> improvements and bug fixes. Notably, this patch makes guest notify and
> host completion processing in parallel which gives about 60% performance
> improv
On Thu, Jul 19, 2012 at 08:05:42AM -0500, Anthony Liguori wrote:
> Asias He writes:
>
> > vhost-blk is a in kernel virito-blk device accelerator.
> >
> > This patch is based on Liu Yuan's implementation with various
> > improvements and bug fixes. Notably, this patch makes guest notify and
> > ho
On Thu, Jul 19, 2012 at 08:05:42AM -0500, Anthony Liguori wrote:
> Of course, the million dollar question is why would using AIO in the
> kernel be faster than using AIO in userspace?
Actually for me a more important question is how does it compare
with virtio-blk dataplane?
--
MST
--
To unsubsc
On 07/19/2012 01:49 PM, Gleb Natapov wrote:
>> All those exports suggest it's better to move the fast path into the
>> emulator.
>
> We've already being through that. Putting the code into emulator gives
> us nothing unless it also works on emulator context and working on
> partially initialized
On Thu, Jul 19, 2012 at 04:34:50PM +0300, Avi Kivity wrote:
> On 07/19/2012 01:49 PM, Gleb Natapov wrote:
> >> All those exports suggest it's better to move the fast path into the
> >> emulator.
> >
> > We've already being through that. Putting the code into emulator gives
> > us nothing unless i
Hi,
I was wondering if it is possible to compile against 2.6.32-279.1.1.el6.x86-64
kernel with kvm-kmod 3.4 source code? It seems like it can be done but with some
work. Here are the two references I am referring to:
http://www.mail-archive.com/kvm@vger.kernel.org/msg70727.html
http://article.gm
i tried now the alpha of ubuntu 12.10 that includes qemu-kvm 1.1
and a 3.5 kernel version.
the "msr" problem is gone now, i was able to select "sandybridge" as
cpu topology, this removed the MSR error messages.
thats the positive part...
unfortunately i had no success with the other topics (rebo
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On 2012-07-19 16:54, Martin Wolf wrote:
> i tried now the alpha of ubuntu 12.10 that includes qemu-kvm 1.1
> and a 3.5 kernel version.
>
> the "msr" problem is gone now, i was able to select "sandybridge" as
> cpu topology, this removed the MSR error messages.
> thats the positive part...
>
> unf
On Thu, 2012-07-19 at 16:54 +0200, Martin Wolf wrote:
> i tried now the alpha of ubuntu 12.10 that includes qemu-kvm 1.1
> and a 3.5 kernel version.
>
> the "msr" problem is gone now, i was able to select "sandybridge" as
> cpu topology, this removed the MSR error messages.
> thats the positive pa
On Thu, 2012-07-19 at 14:57 +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 19, 2012 at 02:25:29PM +0300, Gleb Natapov wrote:
> > On Thu, Jul 19, 2012 at 02:12:13PM +0300, Michael S. Tsirkin wrote:
> > > On Thu, Jul 19, 2012 at 01:54:53PM +0300, Gleb Natapov wrote:
> > > > On Thu, Jul 19, 2012 at 01
On Thu, Jul 19, 2012 at 10:38:03AM -0600, Alex Williamson wrote:
> Yes, the problem isn't the state. The original patch works just fine to
> mask and assert the interrupt every time the device signals and
> de-assert and unmask on every EOI. KVM doesn't need to track this for
> migration (not tha
On Mon, Jul 16, 2012 at 02:33:38PM -0600, Alex Williamson wrote:
> v5:
> - irqfds now have a one-to-one mapping with eoifds to prevent users
>from consuming all of kernel memory by repeatedly creating eoifds
>from a single irqfd.
> - implement a kvm_clear_irq() which does a test_and_clear
On Thu, 2012-07-19 at 19:59 +0300, Michael S. Tsirkin wrote:
> On Mon, Jul 16, 2012 at 02:33:38PM -0600, Alex Williamson wrote:
> > v5:
> > - irqfds now have a one-to-one mapping with eoifds to prevent users
> >from consuming all of kernel memory by repeatedly creating eoifds
> >from a sin
On Thu, Jul 19, 2012 at 11:29:38AM -0600, Alex Williamson wrote:
> On Thu, 2012-07-19 at 19:59 +0300, Michael S. Tsirkin wrote:
> > On Mon, Jul 16, 2012 at 02:33:38PM -0600, Alex Williamson wrote:
> > > v5:
> > > - irqfds now have a one-to-one mapping with eoifds to prevent users
> > >from con
On 07/19/12 13:17, Avi Kivity wrote:
On 07/19/2012 03:14 PM, Chris Clayton wrote:
Change of diagnostics, unfortunately. qemu-kvm-1.0.1 can, in fact, crash
on 3.5.0-rc6 (and rc7). I didn't get it earlier because it takes many
times more invocations before the crash occurs with 1.0.1 and I haven'
On Thu, 2012-07-19 at 20:45 +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 19, 2012 at 11:29:38AM -0600, Alex Williamson wrote:
> > On Thu, 2012-07-19 at 19:59 +0300, Michael S. Tsirkin wrote:
> > > On Mon, Jul 16, 2012 at 02:33:38PM -0600, Alex Williamson wrote:
> > > > v5:
> > > > - irqfds now h
On 07/19/2012 12:35 AM, Bhushan Bharat-R65777 wrote:
>
>
>> -Original Message-
>> From: Wood Scott-B07421
>> Sent: Thursday, July 19, 2012 7:56 AM
>> To: Bhushan Bharat-R65777
>> Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; ag...@suse.de; Bhushan
>> Bharat-
>> R65777
>> Subject: Re:
Hello,
kthread_worker was introduced together with concurrency managed
workqueue to serve workqueue users which need a special dedicated
worker - e.g. RT scheduling. This is minimal queue / flush / flush
all iterface on top of kthread and each provided interface matches the
workqueue counterpart
>From c9bba34243a86fb3ac82d1bdd0ce4bf796b79559 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Thu, 19 Jul 2012 13:52:53 -0700
Make the following two non-functional changes.
* Separate out insert_kthread_work() from queue_kthread_work().
* Relocate struct kthread_flush_work and kthread_flush_wor
>From 06f9a06f4aeecdb9d07014713ab41b548ae219b5 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Thu, 19 Jul 2012 13:52:53 -0700
kthread_worker provides minimalistic workqueue-like interface for
users which need a dedicated worker thread (e.g. for realtime
priority). It has basic queue, flush_work,
On Tue, Jul 17, 2012 at 09:52:13PM +0800, Xiao Guangrong wrote:
> Introduce set_mmio_exit_info to cleanup the common code
>
> Signed-off-by: Xiao Guangrong
> ---
> arch/x86/kvm/x86.c | 33 +
> 1 files changed, 17 insertions(+), 16 deletions(-)
This makes the co
Applied all patches except 2, 3 and 5, thanks.
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On Tue, Jul 17, 2012 at 09:51:34PM +0800, Xiao Guangrong wrote:
> No need split mmio read region into 8-bits pieces since we do it in
> emulator_read_write_onepage
>
> Signed-off-by: Xiao Guangrong
> ---
> arch/x86/kvm/emulate.c | 29 -
> 1 files changed, 12 inserti
On Tue, Jul 17, 2012 at 09:52:52PM +0800, Xiao Guangrong wrote:
> It will trigger a WARN_ON if the page has been freed but it is still
> used in mmu, it can help us to detect mm bug early
>
> Signed-off-by: Xiao Guangrong
> ---
> arch/x86/kvm/mmu.c |8
> 1 files changed, 8 insertion
On Tue, Jul 17, 2012 at 09:53:29PM +0800, Xiao Guangrong wrote:
> If it have no indirect shadow pages we need not protect any gfn,
> this is always true for direct mmu without nested
>
> Signed-off-by: Xiao Guangrong
Xiao,
What is the motivation? Numbers please.
In fact, what case was the orig
On Wed, 18 Jul 2012 17:52:46 -0300
Marcelo Tosatti wrote:
> Can't understand, can you please expand more clearly?
I think mmu pages are not worth freeing under usual memory pressure,
especially when we have EPT/NPT on.
What's happening:
shrink_slab() vainly calls mmu_shrink() with the default
On Thu, Jul 19, 2012 at 12:27:27PM +0100, Morgan Cox wrote:
> Marcelo your awesome !
I agree :)
> thank fixed it.
>
> Thank you.
>
> Is this an issue just with centos kernel or is rhel effected also ?
Not sure - either way disabling kvmclock is not recommended (it handles
a number of problems
On 07/20/2012 07:58 AM, Marcelo Tosatti wrote:
>> -}
>> +rc = ctxt->ops->read_emulated(ctxt, addr, mc->data + mc->end, size,
>> + &ctxt->exception);
>> +if (rc != X86EMUL_CONTINUE)
>> +return rc;
>> +
>> +mc->end += size;
>> +
>> +read_c
On 07/20/2012 08:03 AM, Marcelo Tosatti wrote:
> On Tue, Jul 17, 2012 at 09:52:13PM +0800, Xiao Guangrong wrote:
>> Introduce set_mmio_exit_info to cleanup the common code
>>
>> Signed-off-by: Xiao Guangrong
>> ---
>> arch/x86/kvm/x86.c | 33 +
>> 1 files changed
On 07/20/2012 08:39 AM, Marcelo Tosatti wrote:
> On Tue, Jul 17, 2012 at 09:53:29PM +0800, Xiao Guangrong wrote:
>> If it have no indirect shadow pages we need not protect any gfn,
>> this is always true for direct mmu without nested
>>
>> Signed-off-by: Xiao Guangrong
>
> Xiao,
>
> What is the
On 07/19/2012 06:15 PM, Avi Kivity wrote:
> On 07/17/2012 05:44 PM, Xiao Guangrong wrote:
>> Introduce readonly_fault_pfn, in the later patch, it indicates failure
>> when we try to get a writable pfn from the readonly memslot
>>
>> +
>> inline int kvm_is_mmio_pfn(pfn_t pfn)
>> {
>> if (pfn_
On 07/19/2012 06:16 PM, Avi Kivity wrote:
> On 07/17/2012 05:45 PM, Xiao Guangrong wrote:
>> In the later patch, it indicates failure when we try to get a writable
>> hva from the readonly slot
>>
>> Signed-off-by: Xiao Guangrong
>> ---
>> virt/kvm/kvm_main.c | 12 +++-
>> 1 files chang
BTW, they are some bug fix patches on -master branch, but
it is not existed on -next branch:
commit: f411930442e01f9cf1bf4df41ff7e89476575c4d
commit: 85b7059169e128c57a3a8a3e588fb89cb2031da1
It causes code conflict if we do the development on -next.
On 07/20/2012 08:39 AM, Marcelo Tosatti wrote:c
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer are used for watchdog emulation and emulates
h/w watchdog state machine. On watchdog timer expiry, it exit to QEMU
if TCR.WRC is non ZERO. QEMU can reset/shutd
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer are used for watchdog emulation and emulates
h/w watchdog state machine. On watchdog timer expiry, it exit to QEMU
if TCR.WRC is non ZERO. QEMU can reset/shutd
Please ignore this as I forget to get [v5] is subject..
Thanks
-Bharat
> -Original Message-
> From: Bhushan Bharat-R65777
> Sent: Friday, July 20, 2012 10:29 AM
> To: kvm-...@vger.kernel.org; kvm@vger.kernel.org; ag...@suse.de
> Cc: Bhushan Bharat-R65777
> Subject: [PATCH 2/2] KVM: PPC:
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