On Wed, May 22, 2019 at 05:06:34PM +0200, Sam Ravnborg wrote:
> On Wed, May 22, 2019 at 12:33:07PM +0200, Gerd Hoffmann wrote:
> > cirrus_drv.h and cirrus_ttm.c are unused since commit ab3e023b1b4c
> > ("drm/cirrus: rewrite and modernize driver"), apparently I ran "rm"
> > instead of "git rm" on th
On Wed, May 22, 2019 at 04:47:00PM +0100, Emil Velikov wrote:
> From: Emil Velikov
>
> DRM_UNLOCKED doesn't do anything for non-legacy drivers. Remove it.
Patch applied to drm-misc-next.
thanks,
Gerd
___
Virtualization mailing list
Virtualization@l
On Wed, May 22, 2019 at 03:02:38PM +0200, Johannes Berg wrote:
> Hi,
>
> While my main interest is mostly in UML right now [1] I've CC'ed the
> qemu and virtualization lists because something similar might actually
> apply to other types of virtualization.
>
> I'm thinking about adding virt-io su
Hi Stefan,
> Check out vhost-user. It's a protocol for running a subset of a VIRTIO
> device's emulation in a separate process (usually just the data plane
> with the PCI emulation and other configuration/setup still handled by
> QEMU).
Yes, I think that's basically what I'm looking for.
> vhos
On Thu, May 23, 2019 at 3:25 PM Johannes Berg wrote:
> Not sure I understand why there's all this stuff about multiple FDs,
> once you have access to the guest's memory, why do you still need a
> second (or more) FDs?
The memory regions could be different files (maybe additional RAM was
hotplugge
On Sun, May 19, 2019 at 5:17 PM Jiang Biao wrote:
>
> There are lots of mismatches between comments and codes, this
> patch do these comment fixes.
>
> Signed-off-by: Jiang Biao
> ---
> drivers/virtio/virtio_ring.c | 27 ++-
> 1 file changed, 14 insertions(+), 13 deletion
On Wed, 8 May 2019 15:18:10 +0200 (CEST)
Sebastian Ott wrote:
> > @@ -224,6 +228,9 @@ struct subchannel *css_alloc_subchannel(struct
> > subchannel_id schid,
> > INIT_WORK(&sch->todo_work, css_sch_todo);
> > sch->dev.release = &css_subchannel_release;
> > device_initialize(&sch->dev)
From: Halil Pasic
On s390, protected virtualization guests have to use bounced I/O
buffers. That requires some plumbing.
Let us make sure, any device that uses DMA API with direct ops correctly
is spared from the problems, that a hypervisor attempting I/O to a
non-shared page would bring.
Sign
From: Halil Pasic
To support protected virtualization cio will need to make sure the
memory used for communication with the hypervisor is DMA memory.
Let us introduce one global cio, and some tools for pools seated
at individual devices.
Our DMA pools are implemented as a gen_pool backed with D
From: Halil Pasic
As virtio-ccw devices are channel devices, we need to use the dma area
for any communication with the hypervisor.
It handles neither QDIO in the common code, nor any device type specific
stuff (like channel programs constructed by the DASD driver).
An interesting side effect i
Enhanced virtualization protection technology may require the use of
bounce buffers for I/O. While support for this was built into the virtio
core, virtio-ccw wasn't changed accordingly.
Some background on technology (not part of this series) and the
terminology used.
* Protected Virtualization (
From: Halil Pasic
Protected virtualization guests have to use shared pages for airq
notifier bit vectors, because hypervisor needs to write these bits.
Let us make sure we allocate DMA memory for the notifier bit vectors by
replacing the kmem_cache with a dma_cache and kalloc() with
cio_dma_zall
From: Halil Pasic
The flag AIRQ_IV_CACHELINE was recently added to airq_iv_create(). Let
us use it! We actually wanted the vector to span a cacheline all along.
Signed-off-by: Halil Pasic
---
drivers/s390/virtio/virtio_ccw.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a
From: Halil Pasic
Hypervisor needs to interact with the summary indicators, so these
need to be DMA memory as well (at least for protected virtualization
guests).
Signed-off-by: Halil Pasic
---
drivers/s390/virtio/virtio_ccw.c | 22 +++---
1 file changed, 15 insertions(+), 7 de
From: Halil Pasic
Before virtio-ccw could get away with not using DMA API for the pieces of
memory it does ccw I/O with. With protected virtualization this has to
change, since the hypervisor needs to read and sometimes also write these
pieces of memory.
The hypervisor is supposed to poke the cl
From: Halil Pasic
This will come in handy soon when we pull out the indicators from
virtio_ccw_device to a memory area that is shared with the hypervisor
(in particular for protected virtualization guests).
Signed-off-by: Halil Pasic
Reviewed-by: Pierre Morel
---
drivers/s390/virtio/virtio_cc
On Sat, May 18, 2019 at 01:27:12PM -0700, David Miller wrote:
> From: Jason Wang
> Date: Fri, 17 May 2019 00:29:48 -0400
>
> > Hi:
> >
> > This series try to prevent a guest triggerable CPU hogging through
> > vhost kthread. This is done by introducing and checking the weight
> > after each requ
From: "Jorge E. Moreira"
[ Upstream commit ba95e5dfd36647622d8897a2a0470dde60e59ffd ]
Avoid a race in which static variables in net/vmw_vsock/af_vsock.c are
accessed (while handling interrupts) before they are initialized.
[4.201410] BUG: unable to handle kernel paging request at ff
From: "Jorge E. Moreira"
[ Upstream commit ba95e5dfd36647622d8897a2a0470dde60e59ffd ]
Avoid a race in which static variables in net/vmw_vsock/af_vsock.c are
accessed (while handling interrupts) before they are initialized.
[4.201410] BUG: unable to handle kernel paging request at ff
From: "Jorge E. Moreira"
[ Upstream commit ba95e5dfd36647622d8897a2a0470dde60e59ffd ]
Avoid a race in which static variables in net/vmw_vsock/af_vsock.c are
accessed (while handling interrupts) before they are initialized.
[4.201410] BUG: unable to handle kernel paging request at ff
From: "Jorge E. Moreira"
[ Upstream commit ba95e5dfd36647622d8897a2a0470dde60e59ffd ]
Avoid a race in which static variables in net/vmw_vsock/af_vsock.c are
accessed (while handling interrupts) before they are initialized.
[4.201410] BUG: unable to handle kernel paging request at ff
From: "Jorge E. Moreira"
[ Upstream commit ba95e5dfd36647622d8897a2a0470dde60e59ffd ]
Avoid a race in which static variables in net/vmw_vsock/af_vsock.c are
accessed (while handling interrupts) before they are initialized.
[4.201410] BUG: unable to handle kernel paging request at ff
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