From: "Michael S. Tsirkin"
Date: Wed, 24 Feb 2010 09:34:25 +0200
> Implicitly, I guess. He said "if there's an issue Michael Tsirkin is the
> best person to resolve it", this was wrt merging his virtio&lguest tree.
> He didn't mention vhost, I wrote all of vhost though, there shouldn't be
> an is
On Tue, Feb 23, 2010 at 11:04:28PM -0800, David Miller wrote:
> From: "Michael S. Tsirkin"
> Date: Wed, 24 Feb 2010 07:37:37 +0200
>
> > Dave, so while Rusty's on vacation, what's the best way to get vhost
> > infrastructure fixes in? Are you ok with getting pull requests and
> > merging them int
chkconfig --level 35 kvm off
sati...@pacific.net.hk wrote:
> Hi folks,
>
> Host - Fedora 12 64bit
>
> I need to start KVM manually after booting Fedora. Please advise how
> to disable KVM start at booting. TIA
>
> B.R.
> Stephen L
Thanks,
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From: "Michael S. Tsirkin"
Date: Wed, 24 Feb 2010 07:37:37 +0200
> Dave, so while Rusty's on vacation, what's the best way to get vhost
> infrastructure fixes in? Are you ok with getting pull requests and
> merging them into net-next? That should keep the clutter in your inbox
> to the minimum.
On Tue, Feb 23, 2010 at 02:42:35PM -0800, David Miller wrote:
>
> Just for the record I'm generally not interested in vhost
> patches.
>
> If it's a specific network one that will be merged via
> the networking tree, yes please CC: me.
>
> But if it's a bunch of changes to vhost.c and other piec
Hi folks,
Host - Fedora 12 64bit
I need to start KVM manually after booting Fedora. Please advise how
to disable KVM start at booting. TIA
B.R.
Stephen L
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H i Yogi, I have read and rebased your patch against current trunk. I
have one doubt: I noticed that the tcpdump command you use to monitor
traffic is basically all traffic that goes to network routers
/usr/sbin/tcpdump -npv ip6 -i any 'dst net ff02::2'
However, the IPv4 implementation filters th
This patch enables ipv6 address support in kvm-autotest.
The patch adds a new dictionary called "address6_cache" for ip6 address.
Tcpdump is used to create this cache of link-local ipv6 address.
Link-local ipv6 address is used because it eliminates to need to create
complex configuration on both
This is an implementation of KSM testing. The basic idea behind the
test is to start guests, copy the script allocator.py to them. Once
executed, the process accepts input commands on its main loop.
The script will allow to fill up memory pages of the guests, according
to patterns, this way it's
Hi Feng, I've tested your patch, and have some additional comments to make:
On Mon, Feb 22, 2010 at 6:30 AM, Feng Yang wrote:
> Signed-off-by: Feng Yang
> ---
> client/tests/kvm/scripts/check_image.py | 85
> +++
> client/tests/kvm/tests_base.cfg.sample | 4 ++
* Aurelien Jarno [2010-02-23 11:37]:
> Ryan Harper a écrit :
> > Currently, x86_64-softmmu qemu segfaults when trying to use > 4095M memsize.
> > This patch adds a simple check and error message (much like the 2047 limit
> > on
> > 32-bit hosts) on ram_size in the control path after we determine
Hi all,
I've "only" a core2duo with VT, is it somehow possible to use the PCI
device assignment without VT-d?
That would be great because I cannot upgrade the Mainboard for my system.
If yes, what other prerequisites must be fulfilled?
Thanks!
Best regards,
Erik
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Just for the record I'm generally not interested in vhost
patches.
If it's a specific network one that will be merged via
the networking tree, yes please CC: me.
But if it's a bunch of changes to vhost.c and other pieces
of infrastructure, feel free to leave me out of it. It just
clutters my al
On Tue, 23 Feb 2010, Jan Kiszka wrote:
> Thomas Gleixner wrote:
> > The i8254/i8259 locks need to be real spinlocks on preempt-rt. Convert
> > them to raw_spinlock. No change for !RT kernels.
>
> Doesn't fly for -rt anymore: pic_irq_update runs under this raw lock and
> calls kvm_vcpu_kick which
On Tue, Feb 23, 2010 at 03:07:20PM -0600, Anthony Liguori wrote:
> On 02/23/2010 02:30 PM, Alexander Graf wrote:
> >On 23.02.2010, at 18:02, Aurelien Jarno wrote:
> >
> >>Ryan Harper a écrit :
> >>>Currently, x86_64-softmmu qemu segfaults when trying to use> 4095M
> >>>memsize.
> >>>This patch ad
On 02/23/2010 02:30 PM, Alexander Graf wrote:
On 23.02.2010, at 18:02, Aurelien Jarno wrote:
Ryan Harper a écrit :
Currently, x86_64-softmmu qemu segfaults when trying to use> 4095M memsize.
This patch adds a simple check and error message (much like the 2047 limit on
32-bit hosts)
On 23.02.2010, at 18:02, Aurelien Jarno wrote:
> Ryan Harper a écrit :
>> Currently, x86_64-softmmu qemu segfaults when trying to use > 4095M memsize.
>> This patch adds a simple check and error message (much like the 2047 limit on
>> 32-bit hosts) on ram_size in the control path after we determi
"Michael S. Tsirkin" wrote:
> get_user_pages_fast returns number of pages on success, negative value
> on failure, but never 0. Fix vhost code to match this logic.
It can return 0 if you ask for 0 pages :)
>From the comment:
* Returns number of pages pinned. This may be fewer than the number
*
"Michael S. Tsirkin" wrote:
> vq log eventfd context pointer needs to be initialized, otherwise
> operation may fail or oops if log is enabled but log eventfd not set by
> userspace.
>
> Signed-off-by: Michael S. Tsirkin
Reviewed-by: Juan Quintela
When log_ctx for device is created, it is copi
"Michael S. Tsirkin" wrote:
> vhost was dong some complex math to get
> offset to log at, and got it wrong by a couple of bytes,
> while in fact it's simple: get address where we write,
> subtract start of buffer, add log base.
>
> Do it this way.
>
> Signed-off-by: Michael S. Tsirkin
Reviewed-b
Thomas Gleixner wrote:
> The i8254/i8259 locks need to be real spinlocks on preempt-rt. Convert
> them to raw_spinlock. No change for !RT kernels.
Doesn't fly for -rt anymore: pic_irq_update runs under this raw lock and
calls kvm_vcpu_kick which tries to wake_up some thread -> scheduling
while ato
Le 22/02/2010 22:02, Gilles PIETRI a écrit :
Le 22/02/2010 06:40, Nikola Ciprich a écrit :
Hi Gilles, maybe You have the same problem I experienced?
see http://www.mail-archive.com/kvm@vger.kernel.org/msg28572.html
nik
Hi,
The linux headers do include the MADV_MERGEABLE settings, and the lib
On Tue, Feb 23, 2010 at 07:39:08PM +0200, Michael S. Tsirkin wrote:
> On Tue, Feb 23, 2010 at 07:39:52PM +0200, Gleb Natapov wrote:
> > On Tue, Feb 23, 2010 at 07:32:58PM +0200, Michael S. Tsirkin wrote:
> > > On Tue, Feb 23, 2010 at 07:34:34PM +0200, Gleb Natapov wrote:
> > > > On Tue, Feb 23, 201
On Tue, Feb 23, 2010 at 07:39:52PM +0200, Gleb Natapov wrote:
> On Tue, Feb 23, 2010 at 07:32:58PM +0200, Michael S. Tsirkin wrote:
> > On Tue, Feb 23, 2010 at 07:34:34PM +0200, Gleb Natapov wrote:
> > > On Tue, Feb 23, 2010 at 06:57:58PM +0200, Michael S. Tsirkin wrote:
> > > > get_user_pages_fast
On Tue, Feb 23, 2010 at 07:32:58PM +0200, Michael S. Tsirkin wrote:
> On Tue, Feb 23, 2010 at 07:34:34PM +0200, Gleb Natapov wrote:
> > On Tue, Feb 23, 2010 at 06:57:58PM +0200, Michael S. Tsirkin wrote:
> > > get_user_pages_fast returns number of pages on success, negative value
> > > on failure,
On Tue, Feb 23, 2010 at 07:34:34PM +0200, Gleb Natapov wrote:
> On Tue, Feb 23, 2010 at 06:57:58PM +0200, Michael S. Tsirkin wrote:
> > get_user_pages_fast returns number of pages on success, negative value
> > on failure, but never 0. Fix vhost code to match this logic.
> >
> > Signed-off-by: Mic
On Tue, Feb 23, 2010 at 06:57:58PM +0200, Michael S. Tsirkin wrote:
> get_user_pages_fast returns number of pages on success, negative value
> on failure, but never 0. Fix vhost code to match this logic.
>
> Signed-off-by: Michael S. Tsirkin
> ---
> drivers/vhost/vhost.c |3 ++-
> 1 files ch
Ryan Harper a écrit :
> Currently, x86_64-softmmu qemu segfaults when trying to use > 4095M memsize.
> This patch adds a simple check and error message (much like the 2047 limit on
> 32-bit hosts) on ram_size in the control path after we determine we're
> not using kvm
>
> Upstream qemu-kvm is aff
get_user_pages_fast returns number of pages on success, negative value
on failure, but never 0. Fix vhost code to match this logic.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/vhost.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drive
vq log eventfd context pointer needs to be initialized, otherwise
operation may fail or oops if log is enabled but log eventfd not set by
userspace.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/vhost.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/vhost/
vhost was dong some complex math to get
offset to log at, and got it wrong by a couple of bytes,
while in fact it's simple: get address where we write,
subtract start of buffer, add log base.
Do it this way.
Signed-off-by: Michael S. Tsirkin
---
drivers/vhost/vhost.c | 10 ++
1 files
The following patches on top of net-next fix issues related to write
logging in vhost. This fixes all known to me logging issues, migration
now works for me while under stress in both TX and RX directions.
Rusty's going on vacation, I am guessing he won't have time to review
this: Gleb, Juan, Herbe
This marks the guest single-step API improvement of 94fe45da and
91586a3b with a capability flag to allow reliable detection by user
space.
Signed-off-by: Jan Kiszka
---
arch/x86/kvm/x86.c |1 +
include/linux/kvm.h |1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arc
Call directly into the vendor services for getting/setting rflags in
emulate_instruction to ensure injected TF survives the emulation.
Signed-off-by: Jan Kiszka
---
arch/x86/kvm/x86.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x8
RF is not required for injecting TF as the latter will trigger only
after an instruction execution anyway. So do not touch RF when arming or
disarming guest single-step mode.
Signed-off-by: Jan Kiszka
---
arch/x86/kvm/x86.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --gi
When in guest debugging mode, we have to reinject those #BP software
exceptions that are caused by guest-injected INT3. As older AMD
processors do not support the required nRIP VMCB field, try to emulate
it by moving RIP past the instruction on exception injection. Fix it up
again in case the injec
We intercept #BP while in guest debugging mode. As VM exits due to
intercepted exceptions do not necessarily come with valid
idt_vectoring, we have to update event_exit_inst_len explicitly in such
cases. At least in the absence of migration, this ensures that
re-injections of #BP will find and use
Move svm_queue_exception past skip_emulated_instruction to allow calling
it later on.
Signed-off-by: Jan Kiszka
---
arch/x86/kvm/svm.c | 34 +-
1 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 1d76899
Based on Gleb's suggestion: Add a helper kvm_is_linear_rip that matches
a given linear RIP against the current one. Use this for guest
single-stepping, more users will follow.
Signed-off-by: Jan Kiszka
---
arch/x86/include/asm/kvm_host.h |4 +++-
arch/x86/kvm/x86.c | 21 ++
Changes in v2:
- Retreat TF emulation patch, waiting for emulator rework
- Spilt out svm_queue_exception moving
- Factor out kvm_is_linear_rip ("Saved linear RIP == current RIP?")
- Fixed breakage in INT3 emulation code and addressed review comments
Patch 5 targets also 2.6.33., patch 1 should
Currently, x86_64-softmmu qemu segfaults when trying to use > 4095M memsize.
This patch adds a simple check and error message (much like the 2047 limit on
32-bit hosts) on ram_size in the control path after we determine we're
not using kvm
Upstream qemu-kvm is affected if using the -no-kvm option;
Just one patch, fixing eflags corruption. Also available from git:
git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git uq/stable-0.12
Please pull.
Jan Kiszka (1):
kvm: Fix eflags corruption in kvm mode
cpu-exec.c | 12 +++-
1 files changed, 7 insertions(+), 5 deletions(-)
--
To
From: Jan Kiszka
This should explain a lot of the weird breakages of upstream KVM we've
seen recently (actually we should have seen it much earlier):
Stop translating eflags into TCG format when in kvm mode as we never
translate it back and rather sync this broken state into the kernel.
Signed-
So far we synchronized any dirty VCPU state back into the kernel before
updating the guest debug state. This was a tribute to a deficit in x86
kernels before KVM_CAP_X86_ROBUST_SINGLESTEP. But as this is an
arch-dependent issue, it is better handle in the x86 part of KVM and
remove the writeback po
This add-on patch to recent guest debugging refactorings adds the
requested awareness for KVM_CAP_X86_ROBUST_SINGLESTEP to both the
upstream as well as qemu-kvm's own code. Fortunately, code sharing
increased once again.
Signed-off-by: Jan Kiszka
---
Note: Due to missing VCPU events synchronizat
On Tue, Feb 23, 2010 at 01:41:44PM +0200, Avi Kivity wrote:
> On 02/23/2010 01:30 PM, Jan Kiszka wrote:
> >>
> >>How to detect that emulation is complete? emulate_instruction() should
> >>return EMULATE_DONE in this case.
> >...*and* RIP moved forward.
>
> A branch or rep instruction can successfu
Avi Kivity wrote:
> On 02/23/2010 01:30 PM, Jan Kiszka wrote:
>>> How to detect that emulation is complete? emulate_instruction() should
>>> return EMULATE_DONE in this case.
>>>
>> ...*and* RIP moved forward.
>>
>
> A branch or rep instruction can successfully execute and not change rip
On Tue, Feb 23, 2010 at 12:30:27PM +0100, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Tue, Feb 23, 2010 at 11:37:21AM +0100, Jan Kiszka wrote:
> >> Gleb Natapov wrote:
> >>> On Tue, Feb 23, 2010 at 11:10:57AM +0100, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Mon, Feb 22, 2010 at 06:
On Tue, 2010-02-23 at 16:56 +0800, sshang wrote:
> Add private bridge to use for communication between host and guest.
>Config of parameter:
>bridge = private
>private_bridge_name = private(default)
>private_bridge_addr = 192.168.0.1(default)
>private_bridge_mask
On 02/23/2010 01:30 PM, Jan Kiszka wrote:
How to detect that emulation is complete? emulate_instruction() should
return EMULATE_DONE in this case.
...*and* RIP moved forward.
A branch or rep instruction can successfully execute and not change rip.
Btw, do we expect a #DB on every i
Gleb Natapov wrote:
> On Tue, Feb 23, 2010 at 11:37:21AM +0100, Jan Kiszka wrote:
>> Gleb Natapov wrote:
>>> On Tue, Feb 23, 2010 at 11:10:57AM +0100, Jan Kiszka wrote:
Gleb Natapov wrote:
> On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
>> Support both guest- as well as h
On 02/23/2010 01:00 PM, Gleb Natapov wrote:
They will not trigger before that. They will be queued for the next
entry and queuing another one will either overwrite the previous one,
or will queue double fault (depending on what what the first exception).
The will not stack as the instru
On Tue, Feb 23, 2010 at 11:40:56AM +0100, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Tue, Feb 23, 2010 at 11:13:13AM +0100, Jan Kiszka wrote:
> >> Gleb Natapov wrote:
> >>> On Mon, Feb 22, 2010 at 06:51:22PM +0100, Jan Kiszka wrote:
> Call directly into the vendor services for getting/sett
On Tue, Feb 23, 2010 at 11:37:21AM +0100, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Tue, Feb 23, 2010 at 11:10:57AM +0100, Jan Kiszka wrote:
> >> Gleb Natapov wrote:
> >>> On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
> Support both guest- as well as host-owned EFLAGS.TF whi
Gleb Natapov wrote:
> On Tue, Feb 23, 2010 at 11:13:13AM +0100, Jan Kiszka wrote:
>> Gleb Natapov wrote:
>>> On Mon, Feb 22, 2010 at 06:51:22PM +0100, Jan Kiszka wrote:
Call directly into the vendor services for getting/setting rflags in
emulate_instruction to ensure injected TF survives
On 02/23/2010 12:32 PM, Gleb Natapov wrote:
Emulator currently is a total mess. It is not a good time to add more mess
there right now IMO.
Then let's clean up what you consider "mess" in this feature. Unless
there are plans to clean up the emulator for the next or next-but-one
kern
Gleb Natapov wrote:
> On Tue, Feb 23, 2010 at 11:10:57AM +0100, Jan Kiszka wrote:
>> Gleb Natapov wrote:
>>> On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
Support both guest- as well as host-owned EFLAGS.TF while emulating
instructions. For guest-owned TF, we simply inject D
On Tue, Feb 23, 2010 at 12:29:25PM +0200, Avi Kivity wrote:
> On 02/23/2010 12:26 PM, Gleb Natapov wrote:
> >On Tue, Feb 23, 2010 at 11:10:57AM +0100, Jan Kiszka wrote:
> >>Gleb Natapov wrote:
> >>>On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
> Support both guest- as well as host
On Tue, Feb 23, 2010 at 11:13:13AM +0100, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Mon, Feb 22, 2010 at 06:51:22PM +0100, Jan Kiszka wrote:
> >> Call directly into the vendor services for getting/setting rflags in
> >> emulate_instruction to ensure injected TF survives the emulation.
> >>
> >
On 02/23/2010 12:26 PM, Gleb Natapov wrote:
On Tue, Feb 23, 2010 at 11:10:57AM +0100, Jan Kiszka wrote:
Gleb Natapov wrote:
On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
Support both guest- as well as host-owned EFLAGS.TF while emulating
instructions. For guest-
On Tue, Feb 23, 2010 at 11:10:57AM +0100, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
> >> Support both guest- as well as host-owned EFLAGS.TF while emulating
> >> instructions. For guest-owned TF, we simply inject DB and update DR6.BS
> >
On 02/23/2010 12:17 PM, Jan Kiszka wrote:
Why have you moved svm_queue_exception() function?
To avoid adding a prototype.
It's often better to do this in a separate patch: the changelog answers
the question above, and the following patch is smaller.
--
error compiling committee.
Gleb Natapov wrote:
> On Mon, Feb 22, 2010 at 06:51:19PM +0100, Jan Kiszka wrote:
>> When in guest debugging mode, we have to reinject those #BP software
>> exceptions that are caused by guest-injected INT3. As older AMD
>> processors to not support the required nRIP VMCB field, try to emulate
>> i
Gleb Natapov wrote:
> On Mon, Feb 22, 2010 at 06:51:22PM +0100, Jan Kiszka wrote:
>> Call directly into the vendor services for getting/setting rflags in
>> emulate_instruction to ensure injected TF survives the emulation.
>>
>> Signed-off-by: Jan Kiszka
>> ---
>> arch/x86/kvm/x86.c |4 ++--
>
On Mon, Feb 22, 2010 at 06:51:19PM +0100, Jan Kiszka wrote:
> When in guest debugging mode, we have to reinject those #BP software
> exceptions that are caused by guest-injected INT3. As older AMD
> processors to not support the required nRIP VMCB field, try to emulate
> it by moving RIP by one on
Gleb Natapov wrote:
> On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
>> Support both guest- as well as host-owned EFLAGS.TF while emulating
>> instructions. For guest-owned TF, we simply inject DB and update DR6.BS
>> after completing an instruction that has TF set on entry. To support
On Mon, Feb 22, 2010 at 06:51:22PM +0100, Jan Kiszka wrote:
> Call directly into the vendor services for getting/setting rflags in
> emulate_instruction to ensure injected TF survives the emulation.
>
> Signed-off-by: Jan Kiszka
> ---
> arch/x86/kvm/x86.c |4 ++--
> 1 files changed, 2 insert
On Mon, Feb 22, 2010 at 06:51:23PM +0100, Jan Kiszka wrote:
> Support both guest- as well as host-owned EFLAGS.TF while emulating
> instructions. For guest-owned TF, we simply inject DB and update DR6.BS
> after completing an instruction that has TF set on entry. To support
> guest single-stepping
On Mon, Feb 22, 2010 at 7:42 PM, H. Peter Anvin wrote:
> Typically a disk device would use a BCV, not a BEV.
Laurent Vivier's virtio-blk patchset has BCV support. It is not yet
merged into gPXE:
http://markmail.org/message/oq2et3t3kzjzts7i
Stefan
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Add private bridge to use for communication between host and guest.
Config of parameter:
bridge = private
private_bridge_name = private(default)
private_bridge_addr = 192.168.0.1(default)
private_bridge_mask = 255.255.255.0(default)
pre_command = scripts/pri
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