Re: [Xen-devel] [PATCH RFC 0/9] x86: Improvements to trap handling

["Wu, Feng" <feng.wu@xxxxxxxxx>]

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxx
> [mailto:xen-devel-bounces@xxxxxxxxxxxxx] On Behalf Of Andrew Cooper
> Sent: Thursday, May 15, 2014 5:48 PM
> To: Xen-devel
> Cc: Andrew Cooper; Wu, Feng; Keir Fraser; Jan Beulich; Tim Deegan
> Subject: [Xen-devel] [PATCH RFC 0/9] x86: Improvements to trap handling
> 
> This is a large change to trap handling.  Its underlying purpose is to avoid
> the current situation where ignore_int() in the .init section remains patched
> into each IDT in the reserved exception vectors.
> 
> As a side effect, Xen gains full bugframe and exception_table support from the
> beginning of __start_xen.
> 
> This is far from comprehensivly tested, but has been tested with bugframes
> and
> extable redirects from right after setting up the console (so printing works),
> along with the panic() and reboot paths.
> 
> I notice that Feng Wu has submitted a patch moving the irq-stub generation,
> and it is completely by chance that I have functionally similar patch in this
> series.

Andrew, I just notice your patch, just go ahead with yours, I will go with
other tasks. :) 

Thanks,
Feng

> 
> Andrew Cooper (9):
>   x86/traps: Names for system descriptor types
>   x86/traps: Make panic and reboot paths safe during early boot
>   x86/traps: Make the main trap handlers safe for use early during Xen boot
>   x86/misc: Early cleanup
>   x86/traps: Functional prep work
>   x86/boot: Install trap handlers much earlier on boot
>   x86/boot: Drop pre-C IDT patching
>   x86/irqs: Move interrupt-stub generation out of C
>   x86/misc: Post cleanup
> 
>  xen/arch/x86/boot/x86_64.S      |   56 +-----------------
>  xen/arch/x86/cpu/common.c       |   70 +++++++++++++++++-----
>  xen/arch/x86/cpu/mcheck/mce.c   |    5 +-
>  xen/arch/x86/crash.c            |    2 +-
>  xen/arch/x86/i8259.c            |   69 +---------------------
>  xen/arch/x86/mm.c               |   10 ++--
>  xen/arch/x86/setup.c            |   42 ++++++-------
>  xen/arch/x86/shutdown.c         |   42 +++++++------
>  xen/arch/x86/smpboot.c          |   21 ++-----
>  xen/arch/x86/traps.c            |  124
> ++++++++++++++++++++++++---------------
>  xen/arch/x86/x86_64/Makefile    |    1 +
>  xen/arch/x86/x86_64/entry.S     |   22 +++----
>  xen/arch/x86/x86_64/irqgen.S    |   72 +++++++++++++++++++++++
>  xen/arch/x86/x86_64/traps.c     |   31 +---------
>  xen/common/symbols.c            |    2 +-
>  xen/drivers/char/console.c      |    5 --
>  xen/include/asm-x86/asm_defns.h |    5 --
>  xen/include/asm-x86/config.h    |    1 +
>  xen/include/asm-x86/desc.h      |    9 ++-
>  xen/include/asm-x86/ldt.h       |    2 +-
>  xen/include/asm-x86/processor.h |    6 +-
>  xen/include/asm-x86/setup.h     |    1 -
>  xen/include/asm-x86/system.h    |    1 +
>  xen/include/xen/kernel.h        |    1 +
>  xen/include/xen/sched.h         |    1 +
>  25 files changed, 295 insertions(+), 306 deletions(-)
>  create mode 100644 xen/arch/x86/x86_64/irqgen.S
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel