linux-kernel - Re: [patch V2 00/17] entry: Provide generic implementation for host and guest entry/exit work

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Message-ID: <20191023143734.GJ1800@hirez.programming.kicks-ass.net>
Date:   Wed, 23 Oct 2019 16:37:34 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Andy Lutomirski <luto@...nel.org>,
        Will Deacon <will@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
        linux-arch@...r.kernel.org, Mike Rapoport <rppt@...ux.ibm.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Miroslav Benes <mbenes@...e.cz>
Subject: Re: [patch V2 00/17] entry: Provide generic implementation for host
 and guest entry/exit work

On Wed, Oct 23, 2019 at 02:27:05PM +0200, Thomas Gleixner wrote:
>  /Makefile                             |    3 
>  arch/Kconfig                          |    3 
>  arch/x86/Kconfig                      |    1 
>  arch/x86/entry/calling.h              |   12 +
>  arch/x86/entry/common.c               |  264 ++------------------------------
>  arch/x86/entry/entry_32.S             |   41 ----
>  arch/x86/entry/entry_64.S             |   32 ---
>  arch/x86/entry/entry_64_compat.S      |   30 ---
>  arch/x86/include/asm/irqflags.h       |    8 
>  arch/x86/include/asm/paravirt.h       |    9 -
>  arch/x86/include/asm/signal.h         |    1 
>  arch/x86/include/asm/thread_info.h    |    9 -
>  arch/x86/kernel/signal.c              |    2 
>  arch/x86/kernel/traps.c               |   33 ++--
>  arch/x86/kvm/x86.c                    |   17 --
>  arch/x86/mm/fault.c                   |    7 
>  b/arch/x86/include/asm/entry-common.h |  104 ++++++++++++
>  b/arch/x86/kvm/Kconfig                |    1 
>  b/include/linux/entry-common.h        |  280 ++++++++++++++++++++++++++++++++++
>  b/kernel/entry/common.c               |  184 ++++++++++++++++++++++
>  include/linux/kvm_host.h              |   64 +++++++
>  kernel/Makefile                       |    1 
>  virt/kvm/Kconfig                      |    3 
>  23 files changed, 735 insertions(+), 374 deletions(-)

This looks really nice; esp. the cleaned up interrupt state.

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>