Xen devel - Aug 2009 - Enable GNTTABOP_copy hypercall for HVMs

Attached is the patch for enabling the GNTTAB_copy hypercall for HVMs. For 64
bit guests the grant_table.c functionality is used as is done by PVs but for 32
bit guests on 64 bit Xen, the compat/grant_table.c functionality is used.
This patch applies cleanly on the latest xen-unstable cset.

Signed-off-by: Steven Smith <steven.smith@citrix.com>



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> Attached is the patch for enabling the GNTTAB_copy hypercall for HVMs. For
64 bit guests the grant_table.c functionality is used as is done by PVs but for
32 bit guests on 64 bit Xen, the compat/grant_table.c functionality is used.
> This patch applies cleanly on the latest xen-unstable cset.
> 
> Signed-off-by: Steven Smith <steven.smith@citrix.com>
Err... Was it?  I don''t remember writing this, but perhaps I''m
just
going senile.

The patch looks plausible, but it should probably be signed-off-by:
"Jayaraman, Bhaskar" <Bhaskar.Jayaraman@lsi.com> rather than
signed-off-by: me.

Steven.


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Sorry, patch was signed off by Keir Fraser. Attaching it again.

Signed-off-by: Keir Fraser <Keir.Fraser@citrix.com>
-----Original Message-----
From: Steven Smith [mailto:steven.smith@citrix.com] 
Sent: Tuesday, August 04, 2009 3:02 PM
To: Jayaraman, Bhaskar
Cc: xen-devel@lists.xensource.com; Keir Fraser; Tim Deegan; Steven Smith
Subject: Re: Enable GNTTABOP_copy hypercall for HVMs
> Attached is the patch for enabling the GNTTAB_copy hypercall for HVMs. For
64 bit guests the grant_table.c functionality is used as is done by PVs but for
32 bit guests on 64 bit Xen, the compat/grant_table.c functionality is used.
> This patch applies cleanly on the latest xen-unstable cset.
> 
> Signed-off-by: Steven Smith <steven.smith@citrix.com>
Err... Was it?  I don''t remember writing this, but perhaps I''m
just
going senile.

The patch looks plausible, but it should probably be signed-off-by:
"Jayaraman, Bhaskar" <Bhaskar.Jayaraman@lsi.com> rather than
signed-off-by: me.

Steven.


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Please don''t use the patch sent in the previous mail as it
wasn''t taken with diff -u. I am resending the patch file with the
unified diffs that Keir signed off. This is the same patch as I sent in the
first mail.

This patch is for enabling the GNTTAB_copy hypercall for HVMs. For 64 bit guests
the grant_table.c functionality is used as is done by PVs but for 32 bit guests
on 64 bit Xen, the compat/grant_table.c functionality is used.

This patch applies cleanly on the latest xen-unstable cset.

Signed-off-by: Keir Fraser <Keir.Fraser@citrix.com>

Regards,
Bhaskar.




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> Please don''t use the patch sent in the previous mail as it
wasn''t taken with diff -u. I am resending the patch file with the
unified diffs that Keir signed off. This is the same patch as I sent in the
first mail.
> 
> This patch is for enabling the GNTTAB_copy hypercall for HVMs. For 64 bit
guests the grant_table.c functionality is used as is done by PVs but for 32 bit
guests on 64 bit Xen, the compat/grant_table.c functionality is used.
> 
> This patch applies cleanly on the latest xen-unstable cset.
> 
> Signed-off-by: Keir Fraser <Keir.Fraser@citrix.com>
The signed-off-by: generally says who''s written the patch, rather than
who''s reviewed it or is expected to apply it.  In that case,
that''s
you (unless I''ve missed part of the conversation), and so the
signed-off-by: line should read:

Signed-off-by: "Jayaraman, Bhaskar" <Bhaskar.Jayaraman@lsi.com>

(or however you prefer to write your name).

See http://kerneltrap.org/files/Jeremy/DCO.txt for a brief description
of what exactly a signed-off-by line actually means.

Steven.


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This patch is for enabling the GNTTAB_copy hypercall for HVMs. For 64 bit guests
the grant_table.c functionality is used as is done by PVs but for 32 bit guests
on 64 bit Xen, the compat/grant_table.c functionality is used.
This patch applies cleanly on the latest xen-unstable cset.

Signed-off-by: Jayaraman, Bhaskar <Bhaskar.Jayaraman@lsi.com>



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