(2010/05/06 22:38), Arnd Bergmann wrote:
On Wednesday 05 May 2010, Takuya Yoshikawa wrote:
Date:
Yesterday 04:59:24
That's why the bitmaps are defined as little endian u64 aligned, even on
big endian 32-bit systems. Little endian bitmaps are wordsize agnostic,
and u64 alignment ensures we can
Yes, I'm just using in kernel space: qemu has its own endian related helpers.
So if you allow us to place this macro in asm-generic/bitops/* it will help us.
No problem at all then. Thanks for the explanation.
Acked-by: Arnd Bergmann
Thanks you both. I will add your Acked-by from now on!
On Monday 10 May 2010, Takuya Yoshikawa wrote:
> (2010/05/06 22:38), Arnd Bergmann wrote:
> > On Wednesday 05 May 2010, Takuya Yoshikawa wrote:
> >> There was a suggestion to propose set_le_bit_user() kind of macros.
> >> But what I thought was these have a constraint you two explained and
> >> se
On 05/10/2010 02:46 PM, Takuya Yoshikawa wrote:
(2010/05/06 22:38), Arnd Bergmann wrote:
On Wednesday 05 May 2010, Takuya Yoshikawa wrote:
Date:
Yesterday 04:59:24
That's why the bitmaps are defined as little endian u64 aligned,
even on
big endian 32-bit systems. Little endian bitmaps are wor
On Wednesday 05 May 2010, Takuya Yoshikawa wrote:
> Date:
> Yesterday 04:59:24
> > That's why the bitmaps are defined as little endian u64 aligned, even on
> > big endian 32-bit systems. Little endian bitmaps are wordsize agnostic,
> > and u64 alignment ensures we can use long-sized bitops on m
On Tue, 04 May 2010 19:08:23 +0300
Avi Kivity wrote:
> On 05/04/2010 06:03 PM, Arnd Bergmann wrote:
> > On Tuesday 04 May 2010, Takuya Yoshikawa wrote:
...
> >> So let us use the le bit offset calculation part by defining it as a new
> >> macro: generic_le_bit_offset() .
> >>
> > Does this
On 05/04/2010 06:03 PM, Arnd Bergmann wrote:
On Tuesday 04 May 2010, Takuya Yoshikawa wrote:
Although we can use *_le_bit() helpers to treat bitmaps le arranged,
having le bit offset calculation as a seperate macro gives us more freedom.
For example, KVM has le arranged dirty bitmaps for VG
Although we can use *_le_bit() helpers to treat bitmaps le arranged,
having le bit offset calculation as a seperate macro gives us more freedom.
For example, KVM has le arranged dirty bitmaps for VGA, live-migration
and they are used in user space too. To avoid bitmap copies between kernel
and use
On Tuesday 04 May 2010, Takuya Yoshikawa wrote:
>
> Although we can use *_le_bit() helpers to treat bitmaps le arranged,
> having le bit offset calculation as a seperate macro gives us more freedom.
>
> For example, KVM has le arranged dirty bitmaps for VGA, live-migration
> and they are used in
