Displaying 20 results from an estimated 188 matches for "shareabl".
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shareable
2015 Dec 17
1
[PATCH] virtio_ring: use smp_store_mb
...the outer
> > > coherent stuff.
> >
> > Does outer coherent imply inner coherent?
> >
> > > the *mb() primitives cover both.
>
> I do not think so, but lets add Will, he dreams this stuff.
Right, and I don't sleep well these days.
Anyway, the outer-shareable domain (osh) is a superset of the
inner-shareable domain (ish). The inner-shareable domain contains the
CPUs and any peripherals that you and I would call "cache coherent". The
outer-shareable domain extends this to cover a strange set of "less cache
coherent" devices, which we...
2015 Dec 17
1
[PATCH] virtio_ring: use smp_store_mb
...the outer
> > > coherent stuff.
> >
> > Does outer coherent imply inner coherent?
> >
> > > the *mb() primitives cover both.
>
> I do not think so, but lets add Will, he dreams this stuff.
Right, and I don't sleep well these days.
Anyway, the outer-shareable domain (osh) is a superset of the
inner-shareable domain (ish). The inner-shareable domain contains the
CPUs and any peripherals that you and I would call "cache coherent". The
outer-shareable domain extends this to cover a strange set of "less cache
coherent" devices, which we...
2013 Aug 02
3
Oracle RAC in libvirt+KVM environment
We wan't to setup two Oracle instance and make RAC work on them.
Both VM are setup based on libvirt + KVM, we use a lvm lun which
formated in qcow2 format and set the shareable properties in the disk
driver like this:
<disk type='block' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source dev='/dev/81035c32-d2e4-4aaf-82fa-3e76ae587586/ca18f6a5-7c98-46ea-b562-9424e68a52f3'/&g...
2017 Dec 05
1
[PATCH] lib: libvirt: stop using <shareable/> for appliance disk (RHBZ#1518517)
Commit aa9e0057b19e29f76c9a81f9aebeeb1cb5bf1fdb made the libvirt backend
use <shareable/> for the disk of the appliance, since at that time all
the instances were using the disk directly.
OTOH, commit 3ad44c866042919374e2d840502e53da2ed8aef0 switched to
overlays for read-only disks, including the appliance, so effectively
protecting the appliance.
Because of this, the libvirt bac...
2013 Feb 08
2
[PATCH] xen: arm32: Use system wide TLB flushes, not just inner-shareable
We currently setup page table walks etc as outer-shareable. Given we don''t
really make the distinction between inner- and outer-shareable yet err on
theside of safety.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Cc: Tim Deegan <tim@xen.org>
---
xen/include/asm...
2013 Aug 08
2
Re: Oracle RAC in libvirt+KVM environment
...the IDE
bus.
>
> On Fri, Aug 2, 2013 at 1:58 PM, Timon Wang <timonwst@gmail.com> wrote:
>> We wan't to setup two Oracle instance and make RAC work on them.
>> Both VM are setup based on libvirt + KVM, we use a lvm lun which
>> formated in qcow2 format and set the shareable properties in the disk
>> driver like this:
>>
>> <disk type='block' device='disk'>
>> <driver name='qemu' type='qcow2' cache='none'/>
>> <source dev='/dev/81035c32-d2e4-4aaf-82fa-3e76ae587586/...
2011 May 20
3
Downloading a csv from Dropbox using the shareable link
Hello Kindred R Spirits...
I'm trying to get a file (csv) from Dropbox using their shareable link
concept. They issue a short URL that goes to a web page where you see
a button that says "Download File". They don't really give you the
URL of the file itself, just this page. Is there a way to coax R into
getting such a file? I don't even really want the file p...
2015 Dec 17
2
[PATCH] virtio_ring: use smp_store_mb
On Thu, Dec 17, 2015 at 03:02:12PM +0100, Peter Zijlstra wrote:
> On Thu, Dec 17, 2015 at 03:26:29PM +0200, Michael S. Tsirkin wrote:
> > > Note that virtio_mb() is weirdly inconsistent with virtio_[rw]mb() in
> > > that they use dma_* ops for weak_barriers, while virtio_mb() uses
> > > smp_mb().
> >
> > It's a hack really. I think I'll clean it
2015 Dec 17
2
[PATCH] virtio_ring: use smp_store_mb
On Thu, Dec 17, 2015 at 03:02:12PM +0100, Peter Zijlstra wrote:
> On Thu, Dec 17, 2015 at 03:26:29PM +0200, Michael S. Tsirkin wrote:
> > > Note that virtio_mb() is weirdly inconsistent with virtio_[rw]mb() in
> > > that they use dma_* ops for weak_barriers, while virtio_mb() uses
> > > smp_mb().
> >
> > It's a hack really. I think I'll clean it
2015 Apr 08
2
[PATCH] virtio_ring: Update weak barriers to use dma_wmb/rmb
...benchmark the difference as measureable in the past.
The generic implementation for the smp_ barriers does the same thing
when CONFIG_SMP is defined. The only spot where there should be an
appreciable difference between the two is on ARM where we define the
dma_ barriers as being in the outer shareable domain, and for the smp_
barriers they are inner shareable domain.
> Additionally, isn't this relying on undocumented behaviour?
> The documentation says:
> "These are for use with consistent memory"
> and virtio does not bother to request consistent memory
> alloca...
2015 Apr 08
2
[PATCH] virtio_ring: Update weak barriers to use dma_wmb/rmb
...benchmark the difference as measureable in the past.
The generic implementation for the smp_ barriers does the same thing
when CONFIG_SMP is defined. The only spot where there should be an
appreciable difference between the two is on ARM where we define the
dma_ barriers as being in the outer shareable domain, and for the smp_
barriers they are inner shareable domain.
> Additionally, isn't this relying on undocumented behaviour?
> The documentation says:
> "These are for use with consistent memory"
> and virtio does not bother to request consistent memory
> alloca...
2007 Jun 27
2
Controller specs not shareable?
Hi
I just wondered if there was a reason why Rails controller specs are
not shareable? eg
describe "All XHR POSTs to /gap/calculate_quote", :shared => true do
controller_name :gap
# ...
end
describe "XHR POST /gap/calculate_quote with valid details" do
it_should_behave_like "All XHR POSTs to /gap/calculate_quote"
# ...
end
b...
2013 Aug 08
0
Re: Oracle RAC in libvirt+KVM environment
...s,
but still can't get through.
On Fri, Aug 2, 2013 at 1:58 PM, Timon Wang <timonwst@gmail.com> wrote:
> We wan't to setup two Oracle instance and make RAC work on them.
> Both VM are setup based on libvirt + KVM, we use a lvm lun which
> formated in qcow2 format and set the shareable properties in the disk
> driver like this:
>
> <disk type='block' device='disk'>
> <driver name='qemu' type='qcow2' cache='none'/>
> <source dev='/dev/81035c32-d2e4-4aaf-82fa-3e76ae587586/ca18f6a5-7c98-46ea-b...
2013 Aug 10
0
Re: Oracle RAC in libvirt+KVM environment
...gt;
>> On Fri, Aug 2, 2013 at 1:58 PM, Timon Wang <timonwst@gmail.com> wrote:
>>> We wan't to setup two Oracle instance and make RAC work on them.
>>> Both VM are setup based on libvirt + KVM, we use a lvm lun which
>>> formated in qcow2 format and set the shareable properties in the disk
>>> driver like this:
>>>
>>> <disk type='block' device='disk'>
>>> <driver name='qemu' type='qcow2' cache='none'/>
>>> <source dev='/dev/81035c32-d2e4-4aa...
2018 Feb 06
5
[PATCH v3 1/2] drm/virtio: Add window server support
...o the client passes the dma-buf to the
guest proxy, the guest proxy imports it to look up the resource-id,
passes the resource-id to the host proxy, the host proxy looks up the
drm buffer and exports it as dma-buf, then passes it to the server.
Done, without any extra data copies.
> Creation of shareable buffer by guest
> -------------------------------------------------
>
> 1. Client requests virtio driver to create a buffer suitable for sharing
> with host (DRM_VIRTGPU_RESOURCE_CREATE)
client or guest proxy?
> 4. QEMU maps that buffer to the guest's address space
> (KVM_...
2018 Feb 06
5
[PATCH v3 1/2] drm/virtio: Add window server support
...o the client passes the dma-buf to the
guest proxy, the guest proxy imports it to look up the resource-id,
passes the resource-id to the host proxy, the host proxy looks up the
drm buffer and exports it as dma-buf, then passes it to the server.
Done, without any extra data copies.
> Creation of shareable buffer by guest
> -------------------------------------------------
>
> 1. Client requests virtio driver to create a buffer suitable for sharing
> with host (DRM_VIRTGPU_RESOURCE_CREATE)
client or guest proxy?
> 4. QEMU maps that buffer to the guest's address space
> (KVM_...
2011 Apr 23
1
KVM, virsh attach-disk problems
...ux/5/html-single/Virtualization/index.html#proc-Virtualization-Adding_storage_devices_to_guests-Adding_physical_block_devices_to_virtualized_guests
First I check that the module acpiphp is present on the guest. It is.
On the host I write:
virsh attach-disk test1 /dev/sdb1 sda --driver tap --mode shareable
- test1 is my guest domain
- /dev/sdb1 is the name of the unformatted partition on the host
- sda is what it is supposed to be called on the guest (the name is
unused on the guest)
- the example in RHEL Virtualization guide says "--mode readonly". This
does not sound right for a hard di...
2013 Aug 20
1
Re: Stop the relabeling of CD images
...ELinux - solved, DAC - not (yet).
>>
>
> I played with it earlier, but I'm not sure which settings we use when.
> This is just a "possible workaround", even though it might look like
> it's doing something else. Anyway, If I'm not mistaken, adding a
> <shareable/> into the <disk> element should stop all relabeling.
> Correct me if I'm wrong and post your findings, I'll try how relabel
> works for DAC with upstream in the meantime.
<shareable/> didn't work for me. This is what I currently have:
# virsh dumpxml test
...
2013 Sep 04
2
Error Attaching Seventh VirtIO-SCSI Device to Guest
...activity on that bug so far.
This is the results when attaching virtio-scsi disks in a loop. Sdf is attached but sdg fails.
virsh attach-disk --domain UEM004n1 --source /dev/GuestVols/UEM004-5 --target sdf --cache none --type disk --config --wwn 1fc7058865439717 --serial c7d11fc7058865439717 --shareable
Disk attached successfully
Vol UEM004-6 created
virsh attach-disk --domain UEM004n1 --source /dev/GuestVols/UEM004-6 --target sdg --cache none --type disk --config --wwn 4d3ddb9d15b05e7e --serial 62fd4d3ddb9d15b05e7e --shareable
error: Failed to attach disk
error: internal error Unable to determ...
2012 Feb 13
0
[PATCH 10/14] arm: implement ARMv7 tlb ops.
...define PAGE_SZ 4096 /* PAGE_SIZE @ */
+
+ENTRY(cpu_flush_tlb_all)
+ dsb
+ mov ip, #0
+#ifndef SMP
+ mcr p15, 0, ip, c8, c6, 0 @ invalidate Entire I TLB
+ mcr p15, 0, ip, c8, c5, 0 @ invalidate Entire D TLB
+#else
+ mcr p15, 0, ip, c8, c3, 0
+#endif
+ mcr p15, 0, ip, c7, c5, 6 @ flush BTAC/BTB (shareable)
+ dsb
+ isb
+ mov pc, lr
+
+ENTRY(cpu_flush_tlb_entry)
+ dsb
+#ifndef SMP
+ mcr p15, 0, r0, c8, c6, 1 @ TLB invalidate D MVA
+ mcr p15, 0, r0, c8, c5, 1 @ TLB invalidate I MVA
+#else
+ mcr p15, 0, r0, c8, c3, 1 @ TLB invalidate U MVA (shareable)
+#endif
+ mov ip, #0
+ mcr p15, 0, ip, c7, c5,...