From: Frank Blaschka
This patch adds GISA (Guest Interrupt State Area) support
to s390 kvm. GISA can be used for exitless interrupts. The
patch provides a set of functions for GISA related operations
like accessing GISA fields or registering ISCs for alert.
Exploiters of GISA will follow with
From: Frank Blaschka
This patch implements a pci bus for s390x together with some infrastructure
to generate and handle hotplug events. It also provides device
configuration/unconfiguration via sclp instruction interception.
Signed-off-by: Frank Blaschka
---
default-configs/s390x
From: Frank Blaschka
This patch implemets PCI pass-through kernel support for s390.
Design approach is very similar to the x86 device assignment.
User space executes the KVM_ASSIGN_PCI_DEVICE ioctl to create
a proxy instance in the kernel KVM and connect this instance to the
host pci device
From: Frank Blaschka
This patch exports a couple of zPCI functions. The new pci
pass-through driver for KVM will use this functions to enable the
device with virtualization information and update the device dma
translation table on the host. We add a new interface to purge
the translation table
From: Frank Blaschka
This patch adds a new device class handling s390 pci pass-through device
assignment. The approach is very similar to the x86 device assignment.
The device executes the KVM_ASSIGN_PCI_DEVICE ioctl to create a proxy instance
in the kernel KVM and connect this instance to the
This set of patches implements pci pass-through support for qemu/KVM on s390.
PCI support on s390 is very different from other platforms.
Major differences are:
1) all PCI operations are driven by special s390 instructions
2) all s390 PCI instructions are privileged
3) PCI config and memory spaces
From: Frank Blaschka
This patch provides a new chsc function to register/unregister
a GIB (Guest Information Block).
Signed-off-by: Frank Blaschka
---
arch/s390/include/asm/cio.h |1
drivers/s390/cio/chsc.c | 50
2 files changed, 51
On Thu, Sep 04, 2014 at 07:16:24AM -0600, Alex Williamson wrote:
> On Thu, 2014-09-04 at 12:52 +0200, frank.blasc...@de.ibm.com wrote:
> > This set of patches implements pci pass-through support for qemu/KVM on
> > s390.
> > PCI support on s390 is very different from other platforms.
> > Major dif
On Fri, Sep 05, 2014 at 10:29:26AM +0200, Alexander Graf wrote:
>
>
> On 04.09.14 12:52, frank.blasc...@de.ibm.com wrote:
> > From: Frank Blaschka
> >
> > This patch adds GISA (Guest Interrupt State Area) support
> > to s390 kvm. GISA can be used for exitless i
On Fri, Sep 05, 2014 at 10:21:27AM +0200, Alexander Graf wrote:
>
>
> On 04.09.14 12:52, frank.blasc...@de.ibm.com wrote:
> > This set of patches implements pci pass-through support for qemu/KVM on
> > s390.
> > PCI support on s390 is very different from other platforms.
> > Major differences ar
On Fri, Sep 05, 2014 at 10:35:59AM +0200, Alexander Graf wrote:
>
>
> On 05.09.14 09:46, Frank Blaschka wrote:
> > On Thu, Sep 04, 2014 at 07:16:24AM -0600, Alex Williamson wrote:
> >> On Thu, 2014-09-04 at 12:52 +0200, frank.blasc...@de.ibm.com wrote:
> >>>
From: Frank Blaschka
Following changes are made because of platform differences:
1) s390 does not support mmap'ing of PCI BARs so we have to go via slow path
2) no intx support
3) no classic MSIX interrupts. The pci hw understands the concept
of requesting MSIX irqs but irqs are deliver
From: Frank Blaschka
This patch adds some small changes to make vfio build on s390.
Signed-off-by: Frank Blaschka
---
drivers/vfio/Kconfig |2 +-
drivers/vfio/pci/vfio_pci_rdwr.c |8
2 files changed, 9 insertions(+), 1 deletion(-)
--- a/drivers/vfio/Kconfig
+++ b
This set of patches implements a vfio based solution for pci
pass-through on the s390 platform. The kernel stuff is pretty
much straight forward, but qemu needs more work.
Most interesting patch is:
vfio: make vfio run on s390 platform
I hope Alex & Alex can give me some guidance how to do the
From: Frank Blaschka
This patch implements a pci bus for s390x together with some infrastructure
to generate and handle hotplug events. It also provides device
configuration/unconfiguration via sclp instruction interception.
Signed-off-by: Frank Blaschka
---
default-configs/s390x
From: Frank Blaschka
Add a basic iommu for the s390 platform. The code is pretty
simple since on s390 each PCI device has its own virtual io address
space starting at the same vio address. For this a domain could
hold only one pci device. Also there is no relation between pci
devices so each
From: Frank Blaschka
This patch implements the s390 pci instructions in qemu. This allows
to attach qemu pci devices including vfio. This does not mean the
devices are functional but at least detection and config/memory space
access is working.
Signed-off-by: Frank Blaschka
---
target
Enable PCI instructions for s390 KVM.
Signed-off-by: Frank Blaschka
---
arch/s390/kvm/kvm-s390.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1787,7 +1787,7 @@ static int __init kvm_s390_init(void
On Fri, Sep 19, 2014 at 05:12:15PM +0200, Thomas Huth wrote:
>
> Hi Frank,
>
> On Fri, 19 Sep 2014 13:54:34 +0200
> frank.blasc...@de.ibm.com wrote:
>
> > From: Frank Blaschka
> >
> > This patch implements the s390 pci instructions in qemu. This a
On Mon, Sep 22, 2014 at 02:47:31PM -0600, Alex Williamson wrote:
> On Fri, 2014-09-19 at 13:54 +0200, frank.blasc...@de.ibm.com wrote:
> > This set of patches implements a vfio based solution for pci
> > pass-through on the s390 platform. The kernel stuff is pretty
> > much straight forward, but qe
On Wed, Sep 24, 2014 at 10:05:57AM -0600, Alex Williamson wrote:
> On Wed, 2014-09-24 at 10:47 +0200, Frank Blaschka wrote:
> > On Mon, Sep 22, 2014 at 02:47:31PM -0600, Alex Williamson wrote:
> > > On Fri, 2014-09-19 at 13:54 +0200, frank.blasc...@de.ibm.com wrote:
> >
On Fri, Sep 26, 2014 at 01:59:40PM -0600, Alex Williamson wrote:
> On Fri, 2014-09-26 at 08:45 +0200, Frank Blaschka wrote:
> > On Wed, Sep 24, 2014 at 10:05:57AM -0600, Alex Williamson wrote:
> > > On Wed, 2014-09-24 at 10:47 +0200, Frank Blaschka wrote:
> > > > On M
On Wed, Oct 01, 2014 at 11:26:51AM -0600, Alex Williamson wrote:
> On Wed, 2014-10-01 at 11:11 +0200, Frank Blaschka wrote:
> > On Fri, Sep 26, 2014 at 01:59:40PM -0600, Alex Williamson wrote:
> > > On Fri, 2014-09-26 at 08:45 +0200, Frank Blaschka wrote:
> > > > On W
Introduce platform functions to let vfio announce if INTx is available and
if PCI BARs are mapable. Also take care vfio_pci_vga_rw is building on
platforms which do not support I/O ports.
Signed-off-by: Frank Blaschka
---
arch/s390/include/asm/pci.h | 3 +++
drivers/vfio/Kconfig
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