This patch adds support for AHCI emulation. I have tested and verified it works
in Linux, OpenBSD, Windows Vista and Windows 7. This AHCI emulation supports
NCQ, so multiple read or write requests can be outstanding at the same time.
The code is however not fully optimized yet. I'm fairly sure tha
Am 21.11.2010 03:19, schrieb Alexander Graf:
>
> On 19.11.2010, at 14:46, Kevin Wolf wrote:
>
>> Am 19.11.2010 14:08, schrieb Alexander Graf:
>>>
>>> On 19.11.2010, at 10:15, Kevin Wolf wrote:
>>>
Am 18.11.2010 19:43, schrieb Alexander Graf:
>> Then I believe that core.c is now a mixture
On 19.11.2010, at 10:12, Stefan Hajnoczi wrote:
> On Thu, Nov 18, 2010 at 11:24 PM, Alexander Graf wrote:
>> linux-uztg:~ # dd if=/dev/sdc of=/dev/null bs=10M count=300 iflag=direct
>
> That's a big block size. bs=8k is interesting too because we see the
> per-request overhead. Since IDE, SAT
On 19.11.2010, at 14:46, Kevin Wolf wrote:
> Am 19.11.2010 14:08, schrieb Alexander Graf:
>>
>> On 19.11.2010, at 10:15, Kevin Wolf wrote:
>>
>>> Am 18.11.2010 19:43, schrieb Alexander Graf:
> Then I believe that core.c is now a mixture of some generic ATA code
> (that is also used by S
Hi,
Also to catch up on Gerd's point - whatever refactoring we do, we
will basically have to break migration. There is no way we can change
all the internal state and structure and maintain binary
compatibility with the old save states.
On the other hand it would be a *real* pity to drag the
Am 19.11.2010 14:08, schrieb Alexander Graf:
>
> On 19.11.2010, at 10:15, Kevin Wolf wrote:
>
>> Am 18.11.2010 19:43, schrieb Alexander Graf:
Then I believe that core.c is now a mixture of some generic ATA code
(that is also used by SATA) and the Legacy IDE code. SATA doesn't seem
On 19.11.2010, at 10:15, Kevin Wolf wrote:
> Am 18.11.2010 19:43, schrieb Alexander Graf:
>>
>> On 18.11.2010, at 14:26, Kevin Wolf wrote:
>>
>>> Hi Alex,
>>>
>>> Am 18.11.2010 04:27, schrieb Alexander Graf:
This patch adds support for AHCI emulation. I have tested and verified it
Am 19.11.2010 12:56, schrieb Gerd Hoffmann:
>Hi,
>
>>> As I would rather have something working we can base on in the
>>> tree, so whoever volunteers for the refactoring (hint!) knows how
>>> to design the interfaces, I am not sure how much is reasonable
>>> within this patch set.
>>
>> I gues
Hi,
As I would rather have something working we can base on in the
tree, so whoever volunteers for the refactoring (hint!) knows how
to design the interfaces, I am not sure how much is reasonable
within this patch set.
I guess I have to read this as: You want to drop the code into the
reposi
Am 18.11.2010 19:43, schrieb Alexander Graf:
>
> On 18.11.2010, at 14:26, Kevin Wolf wrote:
>
>> Hi Alex,
>>
>> Am 18.11.2010 04:27, schrieb Alexander Graf:
>>> This patch adds support for AHCI emulation. I have tested and verified it
>>> works
>>> in Linux, OpenBSD, Windows Vista and Windows 7
On Thu, Nov 18, 2010 at 11:24 PM, Alexander Graf wrote:
> linux-uztg:~ # dd if=/dev/sdc of=/dev/null bs=10M count=300 iflag=direct
That's a big block size. bs=8k is interesting too because we see the
per-request overhead. Since IDE, SATA, and virtio have different
hardware interfaces that the g
On 18.11.2010, at 21:06, Ryan Harper wrote:
> Speaking of fast, do you have any numbers around ACHI vs IDE (not that I
> need any convincing that we can do better than IDE); just curious.
To test the raw link speed, I usually take a tmpfs backed sparse raw file and
pass it to the guest. Inside
* Alexander Graf [2010-11-18 12:49]:
>
> On 18.11.2010, at 14:26, Kevin Wolf wrote:
>
> > Hi Alex,
> >
> > Am 18.11.2010 04:27, schrieb Alexander Graf:
> >> This patch adds support for AHCI emulation. I have tested and verified it
> >> works
> >> in Linux, OpenBSD, Windows Vista and Windows 7
On 18.11.2010, at 14:26, Kevin Wolf wrote:
> Hi Alex,
>
> Am 18.11.2010 04:27, schrieb Alexander Graf:
>> This patch adds support for AHCI emulation. I have tested and verified it
>> works
>> in Linux, OpenBSD, Windows Vista and Windows 7. This AHCI emulation supports
>> NCQ, so multiple read
Hi Alex,
Am 18.11.2010 04:27, schrieb Alexander Graf:
> This patch adds support for AHCI emulation. I have tested and verified it
> works
> in Linux, OpenBSD, Windows Vista and Windows 7. This AHCI emulation supports
> NCQ, so multiple read or write requests can be outstanding at the same time.
>
This patch adds support for AHCI emulation. I have tested and verified it works
in Linux, OpenBSD, Windows Vista and Windows 7. This AHCI emulation supports
NCQ, so multiple read or write requests can be outstanding at the same time.
The code is however not fully optimized yet. I'm fairly sure tha
This patch adds support for AHCI emulation. I have tested and verified it works
in Linux, OpenBSD, Windows Vista and Windows 7. This AHCI emulation supports
NCQ, so multiple read or write requests can be outstanding at the same time.
The code is however not fully optimized yet. I'm fairly sure tha
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