于 2012年04月17日 18:59, Avi Kivity 写道:
On 04/17/2012 01:51 PM, zhangyanfei wrote:
于 2012年04月17日 15:44, Avi Kivity 写道:
On 04/11/2012 04:39 AM, zhangyanfei wrote:
This patch set exports offsets of VMCS fields as note information for
kdump. We call it VMCSINFO. The purpose of VMCSINFO is to
On Tue, Apr 17, 2012 at 07:17:11PM +0300, Avi Kivity wrote:
On 04/17/2012 07:15 PM, Jan Kiszka wrote:
On 2012-04-17 14:06, Avi Kivity wrote:
On 04/17/2012 03:03 PM, Gleb Natapov wrote:
KVM_MAX_VCPUS.
Ah, so you are worried about malicious guest configuring pit to
broadcast to
On 04/18/2012 10:30 AM, zhangyanfei wrote:
Okay. Do you expect it to help in debugging the crash? Did you have
cases where it would help?
Yes, I do expect it to help in debugging the crash.
Looking into host machine's crash dump, if we figure out the fact that the
crash
had
On 04/18/2012 11:04 AM, Gleb Natapov wrote:
mainline, are we okay with 254*IPIs? Maybe it's not so bad and I'm
overinflating the problem.
Isn't 254*IPIs can also happen if application changes memory mapping?
It's not in irq context.
--
error compiling committee.c: too many arguments
On Wed, Apr 18, 2012 at 11:25:45AM +0300, Avi Kivity wrote:
On 04/18/2012 11:04 AM, Gleb Natapov wrote:
mainline, are we okay with 254*IPIs? Maybe it's not so bad and I'm
overinflating the problem.
Isn't 254*IPIs can also happen if application changes memory mapping?
It's not in
于 2012年04月18日 16:24, Avi Kivity 写道:
On 04/18/2012 10:30 AM, zhangyanfei wrote:
Okay. Do you expect it to help in debugging the crash? Did you have
cases where it would help?
Yes, I do expect it to help in debugging the crash.
Looking into host machine's crash dump, if we figure out the
On 04/17/2012 10:47 PM, Takuya Yoshikawa wrote:
On Mon, 16 Apr 2012 11:36:25 +0800
Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com wrote:
I tested it with kernbench, no regression is found.
Because kernbench is not at all good test for this.
It is not a problem since the iter and spte
From: Davidlohr Bueso d...@gnu.org
Its much cleaner to use PT_PAGE_TABLE_LEVEL than its numeric value.
Signed-off-by: Davidlohr Bueso d...@gnu.org
---
arch/x86/kvm/mmu.c |2 +-
arch/x86/kvm/paging_tmpl.h |2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git
On Mon, Apr 02, 2012 at 03:14:40PM -0600, Alex Williamson wrote:
IOMMUs often do not have visibility of individual devices in the
system. Due to IOMMU design, bus topology, or device quirks, we
can often only identify groups of devices. Examples include
Intel VT-d AMD-Vi which often have
On 04/18/2012 12:49 PM, zhangyanfei wrote:
What type of resource? Can you give an example?
Sorry. No concrete example for now.
We are developing this on a conservative policy and I have put the vmcs
processing
in a new module in patch set v2 as you required. The new module is
kvm_set_shared_msr() may not be called in preemptible context,
but vmx_set_msr() does so:
BUG: using smp_processor_id() in preemptible [] code: qemu-kvm/22713
caller is kvm_set_shared_msr+0x32/0xa0 [kvm]
Pid: 22713, comm: qemu-kvm Not tainted 3.4.0-rc3+ #39
Call Trace:
On Mon, Apr 02, 2012 at 03:14:46PM -0600, Alex Williamson wrote:
IOMMU groups define the minimum granularity of the IOMMU. We therefore
create groups using a dma_dev which is the effective requestor ID for
the entire group. Additional devices can be added to groups based on
system topology,
On 04/17/2012 07:49 PM, Anthony Liguori wrote:
On 04/17/2012 02:44 AM, Avi Kivity wrote:
On 04/11/2012 04:39 AM, zhangyanfei wrote:
This patch set exports offsets of VMCS fields as note information for
kdump. We call it VMCSINFO. The purpose of VMCSINFO is to retrieve
runtime state of guest
On Tue, 17 Apr 2012 17:56:24 +0300
Avi Kivity a...@redhat.com wrote:
For live migration, range-based control may be enough duo to the locality
of WWS.
What's WWS?
IIRC it was mentioned in a usenix paper: Writable Working Set.
May not be a commonly known concept.
Kind of working set, but
On Wed, Apr 18, 2012, Avi Kivity wrote about Re: [PATCH 0/4] Export offsets of
VMCS fields as note information for kdump:
Right; they're also not required to be in memory at all - the processor
can cache them, even for VMCSs that are not active at this time.
Running VMXOFF at panic time can
Test was using a reference to an old API that no longer
exists in virt_utils. Instead, let's use the current
methods to grab a VM class (methods of the env object).
Also, use up to date methods to get an ssh session to the vm.
Signed-off-by: Lucas Meneghel Rodrigues l...@redhat.com
---
On 04/18/2012 04:47 PM, Nadav Har'El wrote:
On Wed, Apr 18, 2012, Avi Kivity wrote about Re: [PATCH 0/4] Export offsets
of VMCS fields as note information for kdump:
Right; they're also not required to be in memory at all - the processor
can cache them, even for VMCSs that are not active at
Time for which the hrtimer is started for decrementer emulation is calculated
using tb_ticks_per_usec. While hrtimer uses the clockevent for DEC
reprogramming (if needed) and which calculate timebase ticks using the
multiplier and shifter mechanism implemented within clockevent layer. It was
On 04/18/2012 12:54 AM, Alexander Lyakas wrote:
Greetings everybody,
Can anybody please point me to code/documentation regarding the
following questions I have:
- What does it actually mean using -smp N option, in terms of CPU
sharing between the host and the guest?
What does cpu sharing
Hi,
this patch adds support for indirect image_name specification. The purpose is
to set wildcard + offset instead of the exact name.
I'm using it for testing devices I add in the test. Eg. I use pre_script =
modprobe scsi_debug which adds new /dev/sg? device. I know it's the last
device so I
This patch adds a support to specify the disk image by re + select
instead of the image_name.
Params:
indirect_image_select: Index of the disk from list matching disks
image_name: regular expression (ls $image_name)
Usage:
images += stg
image_name_stg = /dev/sd*
This patch adds the check for tray status and fixes some bugs. Also it
changes the VM handling. The VM restart is now necessarily only when
the test fails.
* tray-open status subtest
* change vm handling
* absolute paths of cdrom locations
* workaround locked cdrom
* workaround eject time
MMIO that are split across a page boundary are currently broken - the
code does not expect to be aborted by the exit to userspace for the
first MMIO fragment.
This patch fixes the problem by generalizing the current code for handling
16-byte MMIOs to handle a number of fragments, and changes the
s/kcm/kvm/.
Signed-off-by: Avi Kivity a...@redhat.com
---
arch/ia64/kvm/kvm-ia64.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 882ab21..bd77cb5 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++
Test that MMIO that crosses a page boundary is handled correctly.
Avi Kivity (2):
vm: add alloc_vpages()
emulator: test cross-page mmio
lib/x86/vm.c |9 +++--
lib/x86/vm.h |1 +
x86/emulator.c | 20 +++-
3 files changed, 27 insertions(+), 3 deletions(-)
--
Signed-off-by: Avi Kivity a...@redhat.com
---
x86/emulator.c | 20 +++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/x86/emulator.c b/x86/emulator.c
index 33820f4..969944a 100644
--- a/x86/emulator.c
+++ b/x86/emulator.c
@@ -694,6 +694,19 @@ static void
Allows allocating contiguous virtual address space.
Signed-off-by: Avi Kivity a...@redhat.com
---
lib/x86/vm.c |9 +++--
lib/x86/vm.h |1 +
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/lib/x86/vm.c b/lib/x86/vm.c
index abbb0c9..550ec9b 100644
--- a/lib/x86/vm.c
+++
On Tue, Apr 17, 2012 at 4:54 PM, Alexander Lyakas
alex.bols...@gmail.com wrote:
Greetings everybody,
Can anybody please point me to code/documentation regarding the
following questions I have:
- What does it actually mean using -smp N option, in terms of CPU
sharing between the host and the
On Wed, 2012-04-18 at 19:58 +1000, David Gibson wrote:
On Mon, Apr 02, 2012 at 03:14:40PM -0600, Alex Williamson wrote:
IOMMUs often do not have visibility of individual devices in the
system. Due to IOMMU design, bus topology, or device quirks, we
can often only identify groups of
On Wed, 2012-04-18 at 21:55 +1000, David Gibson wrote:
On Mon, Apr 02, 2012 at 03:14:46PM -0600, Alex Williamson wrote:
IOMMU groups define the minimum granularity of the IOMMU. We therefore
create groups using a dma_dev which is the effective requestor ID for
the entire group. Additional
Thanks Avi and Stuart!
On Wed, Apr 18, 2012 at 8:24 PM, Stuart Yoder b08...@gmail.com wrote:
On Tue, Apr 17, 2012 at 4:54 PM, Alexander Lyakas
alex.bols...@gmail.com wrote:
Greetings everybody,
Can anybody please point me to code/documentation regarding the
following questions I have:
-
On Tue, Apr 17, 2012 at 03:10:42PM +0300, Michael S. Tsirkin wrote:
Real command register is under kernel control:
it includes bits for triggering SERR, marking
BARs as invalid and such which are all under host
kernel control.
While there's no known bug this triggers - since qemu does its
On Tue, Apr 17, 2012 at 09:46:44PM -0600, Alex Williamson wrote:
@@ -340,7 +343,11 @@ int kvm_iommu_unmap_guest(struct kvm *kvm)
if (!domain)
return 0;
+ mutex_lock(kvm-slots_lock);
kvm_iommu_unmap_memslots(kvm);
+ kvm-arch.iommu_domain = NULL;
+
On Wed, Apr 18, 2012 at 03:03:04PM +0300, Avi Kivity wrote:
kvm_set_shared_msr() may not be called in preemptible context,
but vmx_set_msr() does so:
BUG: using smp_processor_id() in preemptible [] code: qemu-kvm/22713
caller is kvm_set_shared_msr+0x32/0xa0 [kvm]
Pid: 22713,
On Wed, Apr 18, 2012 at 12:24:29PM +0200, Davidlohr Bueso wrote:
From: Davidlohr Bueso d...@gnu.org
Its much cleaner to use PT_PAGE_TABLE_LEVEL than its numeric value.
Signed-off-by: Davidlohr Bueso d...@gnu.org
---
arch/x86/kvm/mmu.c |2 +-
arch/x86/kvm/paging_tmpl.h |2
On Wed, 2012-04-18 at 23:30 -0300, Marcelo Tosatti wrote:
On Tue, Apr 17, 2012 at 09:46:44PM -0600, Alex Williamson wrote:
@@ -340,7 +343,11 @@ int kvm_iommu_unmap_guest(struct kvm *kvm)
if (!domain)
return 0;
+ mutex_lock(kvm-slots_lock);
Hello,
Perhaps this query was answered in the past. If yes kindly point me to
the same.
We noticed differences in networking performance (measured via netperf
over a 10G NIC) on an X86_64 server between the following two
configurations :
1) Server run as a KVM Host (but with no KVM guests
On 4/17/2012 6:25 AM, Chegu Vinod wrote:
On 4/17/2012 2:49 AM, Gleb Natapov wrote:
On Mon, Apr 16, 2012 at 07:44:39AM -0700, Chegu Vinod wrote:
On 4/16/2012 5:18 AM, Gleb Natapov wrote:
On Thu, Apr 12, 2012 at 02:21:06PM -0400, Rik van Riel wrote:
On 04/11/2012 01:21 PM, Chegu Vinod wrote:
On Thu, Apr 19, 2012 at 03:53:39AM +, Chegu Vinod wrote:
Hello,
Perhaps this query was answered in the past. If yes kindly point me to
the same.
We noticed differences in networking performance (measured via netperf
over a 10G NIC) on an X86_64 server between the following two
On Tue, 17 Apr 2012 17:56:24 +0300
Avi Kivity a...@redhat.com wrote:
For live migration, range-based control may be enough duo to the locality
of WWS.
What's WWS?
IIRC it was mentioned in a usenix paper: Writable Working Set.
May not be a commonly known concept.
Kind of working set, but
Time for which the hrtimer is started for decrementer emulation is calculated
using tb_ticks_per_usec. While hrtimer uses the clockevent for DEC
reprogramming (if needed) and which calculate timebase ticks using the
multiplier and shifter mechanism implemented within clockevent layer. It was
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