On 18/03/2015 09:46, Stefan Bader wrote:
Regardless of that, I wonder whether the below (this version untested) sound
acceptable for upstream? At least it would make debugging much simpler. :)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2953,8 +2953,11 @@ static __init int
On 18.03.2015 11:27, Paolo Bonzini wrote:
On 18/03/2015 10:59, Stefan Bader wrote:
@@ -2850,7 +2851,7 @@ static __init int setup_vmcs_config(struct
vmcs_config *vmcs_conf) vmx_capability.ept,
vmx_capability.vpid); }
- min = 0; + min = VM_EXIT_SAVE_DEBUG_CONTROLS; #ifdef
Someone reported[1] that some of their L1 guests fail to load the kvm-intel
module (without much details). Turns out that this was (at least) caused by
KVM: vmx: Allow the guest to run with dirty debug registers
as this adds VM_EXIT_SAVE_DEBUG_CONTROLS to the required MSR_IA32_VMX_EXIT_CTLS
On 18.03.2015 10:18, Paolo Bonzini wrote:
On 18/03/2015 09:46, Stefan Bader wrote:
Regardless of that, I wonder whether the below (this version untested) sound
acceptable for upstream? At least it would make debugging much simpler. :)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
On 18/03/2015 10:59, Stefan Bader wrote:
@@ -2850,7 +2851,7 @@ static __init int setup_vmcs_config(struct
vmcs_config *vmcs_conf) vmx_capability.ept,
vmx_capability.vpid); }
-min = 0; + min = VM_EXIT_SAVE_DEBUG_CONTROLS; #ifdef
CONFIG_X86_64 min |= VM_EXIT_HOST_ADDR_SPACE_SIZE;
From: Alexander Yarygin yary...@linux.vnet.ibm.com
In access register mode, the write_guest() read_guest() and other
functions will invoke the access register translation, which
requires an ar, designated by one of the instruction fields.
Signed-off-by: Alexander Yarygin
From: Thomas Huth th...@linux.vnet.ibm.com
On s390, we've got to make sure to hold the IPTE lock while accessing
logical memory. So let's add an ioctl for reading and writing logical
memory to provide this feature for userspace, too.
The maximum transfer size of this call is limited to 64kB to
13211ea7b47db3d8ee2ff258a9a973a6d3aa3d43:
KVM: s390: Enable vector support for capable guest (2015-03-06 13:49:35 +0100)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
tags/kvm-s390-next-20150318
for you to fetch changes up
From: Jason J. Herne jjhe...@linux.vnet.ibm.com
Provide the KVM_S390_GET_SKEYS and KVM_S390_SET_SKEYS ioctl which can be used
to get/set guest storage keys. This functionality is needed for live migration
of s390 guests that use storage keys.
Signed-off-by: Jason J. Herne
From: Geert Uytterhoeven geert+rene...@glider.be
Signed-off-by: Geert Uytterhoeven geert+rene...@glider.be
Message-Id: 1425932832-6244-1-git-send-email-geert+rene...@glider.be
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/kvm-s390.h | 2 +-
1 file changed, 1
Hello Alex,
The module solution seems fine for me, I have no argument against it.
I used your patch on my tests, they are running ok.
Regards,
Baptiste
On Wed, Mar 18, 2015 at 12:04 AM, Alex Williamson
alex.william...@redhat.com wrote:
On Tue, 2015-03-17 at 16:29 -0600, Alex Williamson wrote:
From: Alexander Yarygin yary...@linux.vnet.ibm.com
Access register mode is one of the modes that control dynamic address
translation. In this mode the address space is specified by values of
the access registers. The effective address-space-control element is
obtained from the result of the
From: Michael Mueller m...@linux.vnet.ibm.com
The patch represents capability KVM_CAP_S390_VECTOR_REGISTERS by means
of the SIMD facility bit. This allows to a) disable the use of SIMD when
used in conjunction with a not-SIMD-aware QEMU, b) to enable SIMD when
used with a SIMD-aware version of
From: Alexander Yarygin yary...@linux.vnet.ibm.com
The kvm_s390_check_low_addr_protection() function is used only with real
addresses. According to the POP (the Low-Address Protection
paragraph in chapter 3), if the effective address is real or absolute,
the low-address protection procedure
From: Michael Mueller m...@linux.vnet.ibm.com
Setting the SIMD bit in the KVM mask is an issue because it makes the
facility visible but not usable to the guest, thus it needs to be
removed again.
Signed-off-by: Michael Mueller m...@linux.vnet.ibm.com
Reviewed-by: Eric Farman
From: Dominik Dingel din...@linux.vnet.ibm.com
As all cleanup functions can handle their respective NULL case
there is no need to have more than one error jump label.
Signed-off-by: Dominik Dingel din...@linux.vnet.ibm.com
Acked-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Christian
From: Ekaterina Tumanova tuman...@linux.vnet.ibm.com
The Store System Information (STSI) instruction currently collects all
information it relays to the caller in the kernel. Some information,
however, is only available in user space. An example of this is the
guest name: The kernel always sets
From: Alexander Yarygin yary...@linux.vnet.ibm.com
During dynamic address translation the get_vcpu_asce()
function can be invoked several times. It's ok for usual modes, but will
be slow if CPUs are in AR mode. Let's call the get_vcpu_asce() once and
pass the result to the called functions.
[Ccing netdev and Stefan]
Bandan Das b...@redhat.com writes:
jacob jacob opstk...@gmail.com writes:
On Mon, Mar 16, 2015 at 2:12 PM, Bandan Das b...@redhat.com wrote:
jacob jacob opstk...@gmail.com writes:
I also see the following in dmesg in the VM.
[0.095758] ACPI: PCI Root Bridge
Hi,
My name is Catalin Vasile and I want to participate with a project for
qemu at GSoC.
From what I understand from the rules, I can participate with things I
could also use for my college projects.
This is my last bachelor year and I'm doing my diploma project, which
is related to
On 18/03/2015 17:01, Catalin Vasile wrote:
To be more exact, I want to make a virtio-crypto device to emulate a
virtual cryptographic offloading device that will send jobs from the
guest to a vhost that will process the jobs. This mechanism will link
CryptoAPI from the guest to the CryptoAPI
On Wed, Mar 18, 2015 at 11:24 AM, Bandan Das b...@redhat.com wrote:
[Ccing netdev and Stefan]
Bandan Das b...@redhat.com writes:
jacob jacob opstk...@gmail.com writes:
On Mon, Mar 16, 2015 at 2:12 PM, Bandan Das b...@redhat.com wrote:
jacob jacob opstk...@gmail.com writes:
I also see the
An unintended consequence of commit 42ac9bd18d4f (vfio: initialize
the virqfd workqueue in VFIO generic code) is that the vfio module
is renamed to vfio_core so that it can include both vfio and virqfd.
That's a user visible change that may break module loading scritps
and it imposes eventfd
On 03/16/2015 09:16 AM, Peter Zijlstra wrote:
Hi Waiman,
As promised; here is the paravirt stuff I did during the trip to BOS last week.
All the !paravirt patches are more or less the same as before (the only real
change is the copyright lines in the first patch).
The paravirt stuff is
Radim Krčmář rkrc...@redhat.com writes:
kvm_ioapic_update_eoi() wasn't called if directed EOI was enabled.
We need to do that for irq notifiers. (Like with edge interrupts.)
Fix it by skipping EOI broadcast only.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=82211
Signed-off-by: Radim
kvm_ioapic_update_eoi() wasn't called if directed EOI was enabled.
We need to do that for irq notifiers. (Like with edge interrupts.)
Fix it by skipping EOI broadcast only.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=82211
Signed-off-by: Radim Krčmář rkrc...@redhat.com
---
https://bugzilla.kernel.org/show_bug.cgi?id=82211
--- Comment #11 from Radim Krčmář rkrc...@redhat.com ---
Should be fixed with KVM: x86: call irq notifiers with directed EOI,
(http://www.spinics.net/lists/kernel/msg1949367.html)
can you check if it is?
Thanks.
--
You are receiving this mail
On Fri, Mar 13, 2015 at 09:14:35AM -0600, James Sullivan wrote:
This patch adds a check for RH=1 in kvm_set_msi_irq. Currently the
DM bit is the only thing used to decide irq-dest_mode (logical when DM
set, physical when unset). Documentation indicates that the DM bit will
be 'ignored' when
On Mon, Mar 16, 2015 at 04:10:40PM +0100, Saso Slavicic wrote:
Hi,
I'm fairly experienced with KVM (Centos 5/6), running about a dozen servers
with 20-30 different (Linux MS platform) systems.
I have one Windows XP machine that acts very strangely - it freezes. I get
ping timeout for the
On Wed, Mar 18, 2015 at 06:59:22PM -0600, James Sullivan wrote:
The documentation states the following:
* When RH is 0, the interrupt is directed to the processor listed in the
Destination ID field.
* If RH is 0, then the DM bit is ignored and the message is sent ahead
On Wed, Mar 18, 2015 at 06:59:22PM -0600, James Sullivan wrote:
The documentation states the following:
* When RH is 0, the interrupt is directed to the processor listed in the
Destination ID field.
* If RH is 0, then the DM bit is ignored and the message is sent ahead
On Tue, Mar 17, 2015 at 09:58:21AM +0100, Paolo Bonzini wrote:
On 17/03/2015 08:19, Takuya Yoshikawa wrote:
When all bits in mask are not set,
kvm_arch_mmu_enable_log_dirty_pt_masked() has nothing to do. But since
it needs to be called from the generic code, it cannot be inlined, and
On Mon, Mar 16, 2015 at 05:18:25PM -0400, Bandan Das wrote:
I hit this path on a AMD box and thought
someone was playing a April Fool's joke on me.
Signed-off-by: Bandan Das b...@redhat.com
---
arch/x86/kvm/svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks.
/vfio/virqfd.o' failed
HEAD is now at 78c876aef4f28... Add linux-next specific files for 20150318
CLEAN .
CLEAN arch/x86/kernel/cpu
CLEAN arch/x86/kernel
CLEAN arch/x86/purgatory
CLEAN arch/x86/realmode/rm
CLEAN arch/x86/vdso
CLEAN crypto/asymmetric_keys
CLEAN kernel
Extended struct kvm_lapic_irq with bool msi_redir_hint, which will
be used to determine if the delivery of the MSI should target only
the lowest priority CPU in the logical group specified for delivery.
(In physical dest mode, the RH bit is not relevant). Initialized the value
of msi_redir_hint to
An MSI interrupt should only be delivered to the lowest priority CPU
when it has RH=1, regardless of the delivery mode. Modified
kvm_is_dm_lowest_prio() to check for either irq-delivery_mode == APIC_DM_LOWPRI
or irq-msi_redir_hint.
Moved kvm_is_dm_lowest_prio() into lapic.h and renamed to
Changes Since v1:
* Reworked patches into two commits:
1) [Patch v2 1/2] Extended struct kvm_lapic_irq with bool
msi_redir_hint
* Initialize msi_redir_hint = true in kvm_set_msi_irq when RH=1
* Initialize msi_redir_hint = false otherwise
On Fri, Mar 13, 2015 at 05:48:04PM +0100, Radim Krčmář wrote:
GCC 5.0.0 enables raw strings by default and they have higher priority
than macros, thus R[...] is interpreted incorrectly:
lib/x86/isr.c:112:30: error: invalid character ')' in raw string delimiter
lib/x86/isr.c:112:8: error:
The documentation states the following:
* When RH is 0, the interrupt is directed to the processor listed in the
Destination ID field.
* If RH is 0, then the DM bit is ignored and the message is sent ahead
independent of whether the physical or logical destination mode is used.
On Wed, 2015-03-18 at 15:57 -0700, Jim Davis wrote:
Building with the attached random configuration file,
drivers/vfio/virqfd.c: In function 'vfio_virqfd_enable':
drivers/vfio/virqfd.c:132:2: error: implicit declaration of function
'eventfd_ctx_fileget'
Radim Krčmář rkrc...@redhat.com writes:
kvm_ioapic_update_eoi() wasn't called if directed EOI was enabled.
We need to do that for irq notifiers. (Like with edge interrupts.)
Wow! It's interesting that this path is only hit with Xen as guest.
I always thought of directed EOI as a security
cryptodev is not merged into upstream from what I know.
gnutls can use cryptodev and AF_ALG as crypto engines.
From some benchmarks (that can also be found on cryptodev's webpage)
you can see AF_ALG has a lot overhead over a standalone misc/char
device.
On Wed, Mar 18, 2015 at 6:42 PM, Paolo
Hi.
I have three Ubuntu Server 14.04 trusty with KVM. Two of
them are HP servers and one is Dell. Both brands run fine
the KVM virtual servers, and I can do live migration between
the HPs. But I get I/O errors in the vda when I migrate to
or from the Dell server.
I have shared storage with NFS,
https://bugzilla.kernel.org/show_bug.cgi?id=92871
Radim Krčmář rkrc...@redhat.com changed:
What|Removed |Added
CC||rkrc...@redhat.com
---
On Wed, Mar 18, 2015 at 3:01 PM, Shannon Nelson
shannon.nel...@intel.com wrote:
On Wed, Mar 18, 2015 at 8:40 AM, jacob jacob opstk...@gmail.com wrote:
On Wed, Mar 18, 2015 at 11:24 AM, Bandan Das b...@redhat.com wrote:
Actually, Stefan suggests that support for this card is still
As indicated in the comment, this is not entirely uncommon and
causes user concern for no reason.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/vfio/pci/vfio_pci.c | 10 ++
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c
This copies the same support from pci-stub for exactly the same
purpose, enabling a set of PCI IDs to be automatically added to the
driver's dynamic ID table at module load time. The code here is
pretty simple and both vfio-pci and pci-stub are fairly unique in
being meta drivers, capable of
If VFIO VGA access is disabled for the user, either by CONFIG option
or module parameter, we can often opt-out of VGA arbitration. We can
do this when PCI bridge control of VGA routing is possible. This
means that we must have a parent bridge and there must only be a
single VGA device below that
v2:
- Incorporate comments from Bandan and Bjorn for vfio-pci.ids option
- Include necessary vgaarb change, already Ack'd by Dave
- Rebase on top of my current next branch
- Rename D3 disable parameter
There are really 3 separate features added in this series, the first
is to opt-out VGA
Add a module option so that we don't require a CONFIG change and
kernel rebuild to disable VGA support. Not only can VGA support be
troublesome in itself, but by disabling it we can reduce the impact
to host devices by doing a VGA arbitration opt-out.
Signed-off-by: Alex Williamson
2015-03-18 15:37-0400, Bandan Das:
Radim Krčmář rkrc...@redhat.com writes:
kvm_ioapic_update_eoi() wasn't called if directed EOI was enabled.
We need to do that for irq notifiers. (Like with edge interrupts.)
Wow! It's interesting that this path is only hit with Xen as guest.
Linux
We can save some power by putting devices that are bound to vfio-pci
but not in use by the user in the D3hot power state. Devices get
woken into D0 when opened by the user. Resets return the device to
D0, so we need to re-apply the low power state after a bus reset.
It's tempting to try to use
vga_set_legacy_decoding() is defined in drivers/gpu/vga/vgaarb.c,
which is only compiled with CONFIG_VGA_ARB. A caller would
therefore get an undefined symbol if the VGA arbiter is not
enabled.
Signed-off-by: Alex Williamson alex.william...@redhat.com
Acked-by: Dave Airlie airl...@redhat.com
---
On 18/03/2015 18:05, Catalin Vasile wrote:
cryptodev is not merged into upstream from what I know.
Yes, but QEMU runs on non-Linux platforms too. Of course doing
vhost+driver or gnutls+driver would be already more than enough for the
summer.
In any case, just put all the justification in
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