linux-kernel - [patch 00/16] x86/entry: Consolidation

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Date:   Tue, 25 Feb 2020 23:33:21 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
        Brian Gerst <brgerst@...il.com>,
        Juergen Gross <jgross@...e.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: [patch 00/16] x86/entry: Consolidation - Part IV

Hi!

This is the forth batch of a 73 patches series which consolidates the x86
entry code. The larger explanation is in the part I cover letter:

 https://lore.kernel.org/r/20200225213636.689276920@linutronix.de

I applies on top of part III which can be found here:

 https://lore.kernel.org/r/20200225221606.511535280@linutronix.de

This part consolidates the entry stub ASM code generation further by:

  - Converting the more complex exceptions to the new IDTENTRY scheme

  - Providing seperate C entry points for #DB and #MC (entry from
    user/kernel) to make addressing the RCU vs. world issues which were
    discussed in the last weeks simpler.

  - Moving the CR2 read for page fault handlers out of ASM code

This applies on top of part three which is available here:

   git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git entry-v1-part3

To get part 1 - 4 pull from here:

   git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git entry-v1-part4

Thanks,

	tglx

8<---------------
 entry/entry_32.S          |   77 +-----------
 entry/entry_64.S          |   89 ++------------
 include/asm/idtentry.h    |  287 +++++++++++++++++++++++++++++++++++++++++++++-
 include/asm/kvm_para.h    |    1 
 include/asm/mce.h         |    2 
 include/asm/traps.h       |   34 -----
 kernel/cpu/mce/core.c     |   25 ++--
 kernel/cpu/mce/inject.c   |    4 
 kernel/cpu/mce/internal.h |    2 
 kernel/cpu/mce/p5.c       |    2 
 kernel/cpu/mce/winchip.c  |    2 
 kernel/doublefault_32.c   |    7 -
 kernel/idt.c              |   24 +--
 kernel/kvm.c              |    8 -
 kernel/nmi.c              |    4 
 kernel/traps.c            |   49 +++++--
 kvm/vmx/vmx.c             |    2 
 mm/fault.c                |   20 ++-
 xen/enlighten_pv.c        |   17 +-
 xen/setup.c               |    4 
 xen/smp_pv.c              |    3 
 xen/xen-asm_32.S          |    8 -
 xen/xen-asm_64.S          |   14 +-
 xen/xen-ops.h             |    1 
 24 files changed, 432 insertions(+), 254 deletions(-)