Re: [Xen-ia64-devel] [PATCH] [RFC] paravirt_alt

[Alex Williamson <alex.williamson@xxxxxx>]

On Fri, 2007-07-13 at 20:33 +0900, Isaku Yamahata wrote:
> Hi all.
> 
> This patch introduce binary patching functionality of xenLinux/IA64.
> The goal is to reduce paravirtualization overhead and make
> it more generic rather than xen specific.
> 
> 
> I tested kernel compile on bare metal. The result doesn't show
> any noticiable time difference.
> I tried virtbench local. It showed binary patched kernel seems to be
> slightly faster. But the difference is very small so that I'm not sure
> the difference is meaningfull.

Hi Isaku,

   This doesn't compile for me:

  LD      .tmp_vmlinux1
arch/ia64/xen/built-in.o:(.paravirt_entry+0x8): undefined reference to 
`PARAVIRT_ST_SWITCH_TO'
arch/ia64/xen/built-in.o:(.paravirt_entry+0x18): undefined reference to 
`PARAVIRT_ST_TRACE_SYSCALL'
arch/ia64/xen/built-in.o:(.paravirt_entry+0x28): undefined reference to 
`PARAVIRT_ST_RET_FROM_CLONE'
arch/ia64/xen/built-in.o:(.paravirt_entry+0x38): undefined reference to 
`PARAVIRT_ST_LEAVE_SYSCALL'
arch/ia64/xen/built-in.o:(.paravirt_entry+0x48): undefined reference to 
`PARAVIRT_ST_LEAVE_KERNEL'
arch/ia64/xen/built-in.o:(.paravirt_entry+0x58): undefined reference to 
`PARAVIRT_ST_PAL_CALL_STATIC'
make[5]: *** [.tmp_vmlinux1] Error 1
make[4]: *** [vmlinuz] Error 2
make[3]: *** [vmlinuz] Error 2

Is there a file missing in the patch?  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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