This patch handles PCID/INVPCID for guests.
Process-context identifiers (PCIDs) are a facility by which a logical processor
may cache information for multiple linear-address spaces so that the processor
may retain cached information when software switches to a different linear
address space.
Add unit test for basic functionality of PCID/INVPCID feature exposing in kvm.
Changes from v1:
Hard code 'invpcid' instruction
Signed-off-by: Junjie Mao junjie@intel.com
---
config-x86-common.mak |2 +
config-x86_64.mak |3 +-
x86/README|1 +
x86/pcid.c
* Takuya Yoshikawa takuya.yoshik...@gmail.com wrote:
Replaced Ingo's address with kernel.org one,
On Thu, 03 May 2012 17:47:30 +0200
Peter Zijlstra pet...@infradead.org wrote:
On Thu, 2012-05-03 at 22:00 +0900, Takuya Yoshikawa wrote:
But as I could not see why spin_needbreak() was
Date: Mon, 14 May 2012 08:33:33 -0400
Subject: Private bridge configuration
From: j...@legido.com
To: kvm@vger.kernel.org
Good evening.
I would like to set up below network scenario:
Hypervisor
eth0 192.168.1.x
eth1 10.10.1.x
Vm1
eth0
Hi,
I was playing around with kvm's nested virtualization feature on Intel
VT-x. When trying to access the GUEST_SMBASE (offset 0x4828)field of the
VMCS I got a VMREAD/VMWRITE from/to unsupported VMCS component error.
According to the Intel manual this field is not optional. The error
results
On Mon, May 7, 2012 at 3:30 PM, Anthony Liguori anth...@codemonkey.ws wrote:
On 05/06/2012 09:39 AM, Avi Kivity wrote:
On 05/06/2012 05:35 PM, Anthony Liguori wrote:
So what's really the use case here? Would an IPMI - libvirt bridge get you
what you need? I really think that's the best path
On 05/18/2012 08:08 AM, Stefan Hajnoczi wrote:
On Mon, May 7, 2012 at 3:30 PM, Anthony Liguorianth...@codemonkey.ws wrote:
On 05/06/2012 09:39 AM, Avi Kivity wrote:
On 05/06/2012 05:35 PM, Anthony Liguori wrote:
So what's really the use case here? Would an IPMI - libvirt bridge get you
On Fri, 18 May 2012 09:26:05 +0200
Ingo Molnar mi...@kernel.org wrote:
I'm not sure we had a usable spin_is_contended() back then, nor
was the !PREEMPT case in my mind really.
The fact that both spin_needbreak() and spin_is_contended() can be
used outside of sched is a bit confusing.
For
On Thu, 2012-05-17 at 17:20 +0800, Liu Ping Fan wrote:
Currently, the guest can not know the NUMA info of the vcpu, which
will
result in performance drawback.
This is the discovered and experiment by
Shirley Ma x...@us.ibm.com
Krishna Kumar krkum...@in.ibm.com
Tom
There are two functions in this asm-generic file. Looking at
other arch which do not use the generic version, these two fcns
are within an #ifdef __KERNEL__ block, so make the generic one
consistent with those.
Signed-off-by: Paul Gortmaker paul.gortma...@windriver.com
diff --git
Alex Williamson alex.williamson at redhat.com writes:
On Wed, 2012-05-16 at 17:49 +, Shesha Sreenivasamurthy wrote:
I'm using FreeBSD 9.0 (FreeBSD freebsd9-i386 9.0-RELEASE FreeBSD
9.0-RELEASE)
as my guest OS with qemu-kvm (qemu-kvm-1.1-rc2/x86_64-softmmu/
qemu-system-x86_64)
On Fri, May 18, 2012 at 01:59:39PM -0400, Paul Gortmaker wrote:
There are two functions in this asm-generic file. Looking at
other arch which do not use the generic version, these two fcns
are within an #ifdef __KERNEL__ block, so make the generic one
consistent with those.
Signed-off-by:
On Fri, 2012-05-18 at 18:38 +, Shesha Sreenivasamurthy wrote:
Alex Williamson alex.williamson at redhat.com writes:
On Wed, 2012-05-16 at 17:49 +, Shesha Sreenivasamurthy wrote:
I'm using FreeBSD 9.0 (FreeBSD freebsd9-i386 9.0-RELEASE FreeBSD
9.0-RELEASE)
as my guest OS
See individual patches for details.
Alex Williamson (1):
KVM: lock slots_lock around device assignment
Avi Kivity (1):
KVM: Ensure all vcpus are consistent with in-kernel irqchip settings
Christian Borntraeger (1):
KVM: s390: Sanitize fpc registers for KVM_SET_FPU
Jens Freimann (1):
From: Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp
(cherry picked from commit 565f3be2174611f364405bbea2d86e153c2e7e78
Other threads may process the same page in that small window and skip
TLB flush and then return before these functions do flush.
Signed-off-by: Takuya Yoshikawa
(cherry picked from commit 7a4f5ad051e02139a9f1c0f7f4b1acb88915852b)
vmx_set_cr0 is called from vcpu run context, therefore it expects
kvm-srcu to be held (for setting up the real-mode TSS).
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Avi Kivity a...@redhat.com
From: Avi Kivity a...@redhat.com
(cherry picked from commit 3e515705a1f46beb1c942bb8043c16f8ac7b1e9e)
If some vcpus are created before KVM_CREATE_IRQCHIP, then
irqchip_in_kernel() and vcpu-arch.apic will be inconsistent, leading
to potential NULL pointer dereferences.
Fix by:
- ensuring that no
From: Nadav Har'El n...@math.technion.ac.il
(cherry picked from commit 9587190107d0c0cbaccbf7bf6b0245d29095a9ae)
The code which checks whether to inject a pagefault to L1 or L2 (in
nested VMX) was wrong, incorrect in how it checked the PF_VECTOR bit.
Thanks to Dan Carpenter for spotting this.
From: Jens Freimann jf...@linux.vnet.ibm.com
(cherry picked from commit 9e0d5473e2f0ba2d2fe9dab9408edef3060b710e)
In handle_stop() handle the stop bit before doing the store status as
described for Stop and Store Status in the Principles of Operation.
We have to give up the local_int.lock before
From: Alex Williamson alex.william...@redhat.com
(cherry picked from commit 21a1416a1c945c5aeaeaf791b63c64926018eb77)
As pointed out by Jason Baron, when assigning a device to a guest
we first set the iommu domain pointer, which enables mapping
and unmapping of memory slots to the iommu. This
From: Christian Borntraeger borntrae...@de.ibm.com
(cherry picked from commit 851755871c1f3184f4124c466e85881f17fa3226)
commit 7eef87dc99e419b1cc051e4417c37e4744d7b661 (KVM: s390: fix
register setting) added a load of the floating point control register
to the KVM_SET_FPU path. Lets make sure
[Re: [PATCH] kvm: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block]
On 18/05/2012 (Fri 20:42) Sam Ravnborg wrote:
On Fri, May 18, 2012 at 01:59:39PM -0400, Paul Gortmaker wrote:
There are two functions in this asm-generic file. Looking at
other arch which do not use the generic
On Fri, May 18, 2012 at 06:17:05AM +, Mao, Junjie wrote:
This patch handles PCID/INVPCID for guests.
Process-context identifiers (PCIDs) are a facility by which a logical
processor
may cache information for multiple linear-address spaces so that the processor
may retain cached
On 05/18/2012 06:02 PM, Alex Williamson wrote:
On Wed, 2012-05-16 at 09:29 -0400, Don Dutile wrote:
On 05/15/2012 05:09 PM, Alex Williamson wrote:
On Tue, 2012-05-15 at 13:56 -0600, Bjorn Helgaas wrote:
On Mon, May 14, 2012 at 4:49 PM, Alex Williamson
alex.william...@redhat.com wrote:
On
On Tue, May 8, 2012 at 3:09 AM, Hao, Xudong xudong@intel.com wrote:
-Original Message-
From: Bjorn Helgaas [mailto:bhelg...@google.com]
}
This doesn't make any sense to me. pos is the offset of the PCI
Express Capability (identifier 10h). LTR is a separate extended
On Sun, May 13, 2012 at 8:48 PM, Xudong Hao xudong@linux.intel.com wrote:
Enable LTR(Latency tolerance reporting) and OBFF(optimized buffer flush/fill)
in
pci_enable_device(), so that they are enabled before the device is used by
driver.
Please split this into two patches (one for LTR
On Fri, 2012-05-18 at 19:00 -0400, Don Dutile wrote:
On 05/18/2012 06:02 PM, Alex Williamson wrote:
On Wed, 2012-05-16 at 09:29 -0400, Don Dutile wrote:
On 05/15/2012 05:09 PM, Alex Williamson wrote:
On Tue, 2012-05-15 at 13:56 -0600, Bjorn Helgaas wrote:
On Mon, May 14, 2012 at 4:49 PM,
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