Displaying 20 results from an estimated 1000 matches similar to: "[Qemu-devel] SCSI Command support over VirtIO Block device"
2010 Dec 13
0
SCSI Command support over VirtIO Block device
Hi
I am trying to implement VirtIO support for a proprietary OS. And It
would be great if I am able to process SCSI commands over VirtIO Block
device.
I tried to execute INQUIRY command but the status returned is UNSUPPORTED.
If anyone provide example VirtIO SCSI Command request structure for
INQUIRY command as per VirtIO spec Appendix D would be a great help.
And also, the paragraph from
2010 Dec 13
0
SCSI Command support over VirtIO Block device
Hi
I am trying to implement VirtIO support for a proprietary OS. And It
would be great if I am able to process SCSI commands over VirtIO Block
device.
I tried to execute INQUIRY command but the status returned is UNSUPPORTED.
If anyone provide example VirtIO SCSI Command request structure for
INQUIRY command as per VirtIO spec Appendix D would be a great help.
And also, the paragraph from
2011 Mar 16
1
Developing custom PCI devices in qemu
Hi All
I am interested in developing a custom PCI device for qemu.
For learning purpose, It could be just a very basic device e.g. a device
which just loopbacks the contents from device memory to some system buffer.
Please guide me how such a device can be developed in qemu.
Do qemu have some device model or device framework for developing custom
virtual devices?
Any documentation and samples
2011 Mar 16
1
Developing custom PCI devices in qemu
Hi All
I am interested in developing a custom PCI device for qemu.
For learning purpose, It could be just a very basic device e.g. a device
which just loopbacks the contents from device memory to some system buffer.
Please guide me how such a device can be developed in qemu.
Do qemu have some device model or device framework for developing custom
virtual devices?
Any documentation and samples
2010 Nov 16
1
[PATCH RFC] tools/virtio: virtio_ring testing tool
This implements a virtio simulator:
- adds stubs for enough support functions to compile
virtio ring in userspace.
- Adds a stub vhost based module this can talk to.
This should help us decide things like which ring layout
works best.
Communication is currently done using an eventfd descriptor.
This means there's a shared spinlock there: what I would like to do
in the future, is run this
2010 Nov 16
1
[PATCH RFC] tools/virtio: virtio_ring testing tool
This implements a virtio simulator:
- adds stubs for enough support functions to compile
virtio ring in userspace.
- Adds a stub vhost based module this can talk to.
This should help us decide things like which ring layout
works best.
Communication is currently done using an eventfd descriptor.
This means there's a shared spinlock there: what I would like to do
in the future, is run this
2018 Mar 22
2
new @llvm.memcpy and @llvm.memset API in trunk - how to use alignment?
The new @llvm.memcpy API does not have an alignment parameter. Instead the
docs say to use the align <n> attribute. How is this supposed to work with
different alignments?
For example, I have one memcpy with align 4, align 4, and another with
align 1, align 1.
; Function Attrs: argmemonly nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly align 4,
i8* nocapture
2016 Mar 22
0
New intrinsic property IntrOnlyWrite
On 03/21/2016 08:54 AM, Nicolai Hähnle wrote:
> On 19.03.2016 14:47, Philip Reames wrote:
>> I'm generally in support of this change. I haven't looked at the patch
>> yet, but the direction seems worthwhile.
>>
>> Note that we already have a writeonly predicate in a few places in the
>> code (BasicAA being one). If we do introduce the new intrinsic
2018 Mar 22
0
new @llvm.memcpy and @llvm.memset API in trunk - how to use alignment?
On 3/22/2018 3:15 PM, Andrew Kelley via llvm-dev wrote:
> The new @llvm.memcpy API does not have an alignment parameter. Instead
> the docs say to use the align <n> attribute. How is this supposed to
> work with different alignments?
>
> For example, I have one memcpy with align 4, align 4, and another with
> align 1, align 1.
>
> ; Function Attrs: argmemonly
2020 Jul 11
3
Bug in pass 'ipsccp' on function attribute 'argmemonly'?
Hi all,
Let's see an example (from Alexandre Isoard) first:
****************************************************************************************
; RUN: opt -ipsccp -deadargelim -licm -O2 -S < %s
@g = internal global i32 0
; Function Attrs: argmemonly
define internal void @foo(i32* nonnull dereferenceable(4) %arg, i32 %val) #0
{
entry:
store i32 %val, i32* %arg
ret void
}
define
2020 Jul 14
3
Bug in pass 'ipsccp' on function attribute 'argmemonly'?
Thank you Hal and Stefan!
Bug report is filed: https://bugs.llvm.org/show_bug.cgi?id=46717
And Stefan,
I think 'attributor' is a really nice pass, and can infer more precise and
useful attributes, which may give more opportunities for optimization.
But we shouldn't depend on 'attributor' to correct wrong function
attributes, because we cannot run 'attributor' after
2010 Sep 02
5
Re: Exclude ActiveRecord in Rails3
What''s the best way to exclude ActiveRecord in Rails3?
In Rails2, one could just do:
*config.frameworks -= [ :active_record ]*
in the configuration block in environment.rb. Is it possible in Rails3?
Thanks.
Anuj
--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group.
To post to this group, send email to
2018 Nov 23
2
is this a bug in an optimization pass?
The frontend code is a pretty simple for loop, that counts from i = 0;
i != 10; i += 1
It gets optimized into and endless loop.
export fn entry() void {
var array: [10]Bar = undefined;
var x = for (array) |elem, i| {
if (i == 1) break elem;
} else bar2();
}
Here's the generated IR:
; ModuleID = 'test'
source_filename = "test"
target datalayout =
2016 Mar 21
3
New intrinsic property IntrOnlyWrite
On 19.03.2016 14:47, Philip Reames wrote:
> I'm generally in support of this change. I haven't looked at the patch
> yet, but the direction seems worthwhile.
>
> Note that we already have a writeonly predicate in a few places in the
> code (BasicAA being one). If we do introduce the new intrinsic
> property, we should refactor all of these places to use the new
>
2017 Jan 28
6
make SCSI passthrough support optional
Hi all,
this series builds on my previous changes in Jens' for-4.11/rq-refactor
branch that split out the BLOCK_PC fields from struct request into a new
struct scsi_request, and makes support for struct scsi_request and the
SCSI passthrough ioctls optional. It is now only enabled by drivers that
need it.
In addition I've made SCSI passthrough support in the virtio_blk driver an
optional
2017 Jan 28
6
make SCSI passthrough support optional
Hi all,
this series builds on my previous changes in Jens' for-4.11/rq-refactor
branch that split out the BLOCK_PC fields from struct request into a new
struct scsi_request, and makes support for struct scsi_request and the
SCSI passthrough ioctls optional. It is now only enabled by drivers that
need it.
In addition I've made SCSI passthrough support in the virtio_blk driver an
optional
2020 Jul 15
2
Bug in pass 'ipsccp' on function attribute 'argmemonly'?
On 7/14/20 4:34 PM, Hal Finkel via llvm-dev wrote:
>
> On 7/14/20 11:28 AM, Fangqing Du wrote:
>> Thank you Hal and Stefan!
>>
>> Bug report is filed: https://bugs.llvm.org/show_bug.cgi?id=46717
>> <https://bugs.llvm.org/show_bug.cgi?id=46717>
>>
>> And Stefan,
>> I think 'attributor' is a really nice pass, and can infer more
>>
2011 May 05
9
[threadsafe] Arel ToSql visitor is not threadsafe
Hey,
We hit a bug today because Arel::Visitors::ToSql is not threadsafe.
Here is what is happening:
Arel::Visitors::ENGINE_VISITORS is a cache of visitors instances.
These instances are not inherently threadsafe because it contains
state ''@last_column'', ''@connection'' that is shared between threads.
The other variables ''@pool'',
2006 Feb 17
3
dansguardian+squid masquerading not working
Hello Everyone!
I am using shorewall-3.0.5 on suse linux.
Recently we have implemented dansguardian running on 8080 and squid on
port 3128.
Previously (before dans guardian) masquerading was working fine but
after the implementation of dansguardian masquerading is not working.
My rules file has entry
Previous entry was
ACCEPT loc:192.192.192.3 net
REDIRECT loc 8080 tcp
2010 May 12
8
Trouble developing Rails plugins/gems with generators
Hi,
I''ve been trying to develop a Rails gem/plugin with generators for
Rails 3. I first had a separate gem project with a gem statement in my
Gemfile with a :path option to point at it. But then I had to run $
rake install on each change in my gem to have Rails pick up on it. I
have now instead put my generators inside RAILS_ROOT/lib so they are
easier to test/develop.
lib/generators
-