From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89766C4321D for ; Fri, 24 Aug 2018 13:53:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 48A9E2156B for ; Fri, 24 Aug 2018 13:53:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 48A9E2156B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727602AbeHXR1p (ORCPT ); Fri, 24 Aug 2018 13:27:45 -0400 Received: from mx2.suse.de ([195.135.220.15]:57156 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726264AbeHXR1p (ORCPT ); Fri, 24 Aug 2018 13:27:45 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C9C16AE8E; Fri, 24 Aug 2018 13:52:56 +0000 (UTC) Subject: Re: [PATCH v2 00/11] x86/paravirt: several cleanups To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org, virtualization@lists.linux-foundation.org Cc: akataria@vmware.com, rusty@rustcorp.com.au, boris.ostrovsky@oracle.com, hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com, peterz@infradead.org References: <20180813073739.26108-1-jgross@suse.com> From: Juergen Gross Openpgp: preference=signencrypt Autocrypt: addr=jgross@suse.com; prefer-encrypt=mutual; keydata= xsBNBFOMcBYBCACgGjqjoGvbEouQZw/ToiBg9W98AlM2QHV+iNHsEs7kxWhKMjrioyspZKOB ycWxw3ie3j9uvg9EOB3aN4xiTv4qbnGiTr3oJhkB1gsb6ToJQZ8uxGq2kaV2KL9650I1SJve dYm8Of8Zd621lSmoKOwlNClALZNew72NjJLEzTalU1OdT7/i1TXkH09XSSI8mEQ/ouNcMvIJ NwQpd369y9bfIhWUiVXEK7MlRgUG6MvIj6Y3Am/BBLUVbDa4+gmzDC9ezlZkTZG2t14zWPvx XP3FAp2pkW0xqG7/377qptDmrk42GlSKN4z76ELnLxussxc7I2hx18NUcbP8+uty4bMxABEB AAHNHkp1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmRlPsLAeQQTAQIAIwUCU4xw6wIbAwcL CQgHAwIBBhUIAgkKCwQWAgMBAh4BAheAAAoJELDendYovxMvi4UH/Ri+OXlObzqMANruTd4N zmVBAZgx1VW6jLc8JZjQuJPSsd/a+bNr3BZeLV6lu4Pf1Yl2Log129EX1KWYiFFvPbIiq5M5 kOXTO8Eas4CaScCvAZ9jCMQCgK3pFqYgirwTgfwnPtxFxO/F3ZcS8jovza5khkSKL9JGq8Nk czDTruQ/oy0WUHdUr9uwEfiD9yPFOGqp4S6cISuzBMvaAiC5YGdUGXuPZKXLpnGSjkZswUzY d9BVSitRL5ldsQCg6GhDoEAeIhUC4SQnT9SOWkoDOSFRXZ+7+WIBGLiWMd+yKDdRG5RyP/8f 3tgGiB6cyuYfPDRGsELGjUaTUq3H2xZgIPfOwE0EU4xwFgEIAMsx+gDjgzAY4H1hPVXgoLK8 B93sTQFN9oC6tsb46VpxyLPfJ3T1A6Z6MVkLoCejKTJ3K9MUsBZhxIJ0hIyvzwI6aYJsnOew cCiCN7FeKJ/oA1RSUemPGUcIJwQuZlTOiY0OcQ5PFkV5YxMUX1F/aTYXROXgTmSaw0aC1Jpo w7Ss1mg4SIP/tR88/d1+HwkJDVW1RSxC1PWzGizwRv8eauImGdpNnseneO2BNWRXTJumAWDD pYxpGSsGHXuZXTPZqOOZpsHtInFyi5KRHSFyk2Xigzvh3b9WqhbgHHHE4PUVw0I5sIQt8hJq 5nH5dPqz4ITtCL9zjiJsExHuHKN3NZsAEQEAAcLAXwQYAQIACQUCU4xwFgIbDAAKCRCw3p3W KL8TL0P4B/9YWver5uD/y/m0KScK2f3Z3mXJhME23vGBbMNlfwbr+meDMrJZ950CuWWnQ+d+ Ahe0w1X7e3wuLVODzjcReQ/v7b4JD3wwHxe+88tgB9byc0NXzlPJWBaWV01yB2/uefVKryAf AHYEd0gCRhx7eESgNBe3+YqWAQawunMlycsqKa09dBDL1PFRosF708ic9346GLHRc6Vj5SRA UTHnQqLetIOXZm3a2eQ1gpQK9MmruO86Vo93p39bS1mqnLLspVrL4rhoyhsOyh0Hd28QCzpJ wKeHTd0MAWAirmewHXWPco8p1Wg+V+5xfZzuQY0f4tQxvOpXpt4gQ1817GQ5/Ed/wsDtBBgB CAAgFiEEhRJncuj2BJSl0Jf3sN6d1ii/Ey8FAlrd8NACGwIAgQkQsN6d1ii/Ey92IAQZFggA HRYhBFMtsHpB9jjzHji4HoBcYbtP2GO+BQJa3fDQAAoJEIBcYbtP2GO+TYsA/30H/0V6cr/W V+J/FCayg6uNtm3MJLo4rE+o4sdpjjsGAQCooqffpgA+luTT13YZNV62hAnCLKXH9n3+ZAgJ RtAyDWk1B/0SMDVs1wxufMkKC3Q/1D3BYIvBlrTVKdBYXPxngcRoqV2J77lscEvkLNUGsu/z W2pf7+P3mWWlrPMJdlbax00vevyBeqtqNKjHstHatgMZ2W0CFC4hJ3YEetuRBURYPiGzuJXU pAd7a7BdsqWC4o+GTm5tnGrCyD+4gfDSpkOT53S/GNO07YkPkm/8J4OBoFfgSaCnQ1izwgJQ jIpcG2fPCI2/hxf2oqXPYbKr1v4Z1wthmoyUgGN0LPTIm+B5vdY82wI5qe9uN6UOGyTH2B3p hRQUWqCwu2sqkI3LLbTdrnyDZaixT2T0f4tyF5Lfs+Ha8xVMhIyzNb1byDI5FKCb Message-ID: <45bfe8ab-683f-ab79-e3c6-c0a707b667c2@suse.com> Date: Fri, 24 Aug 2018 15:52:55 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180813073739.26108-1-jgross@suse.com> Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 13/08/18 09:37, Juergen Gross wrote: > This series removes some no longer needed stuff from paravirt > infrastructure and puts large quantities of paravirt ops under a new > config option PARAVIRT_XXL which is selected by XEN_PV only. > > A pvops kernel without XEN_PV being configured is about 2.5% smaller > with this series applied. > > tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt: > Fix spectre-v2 mitigations for paravirt guests") is a prerequisite > for this series. > > The last 4 patches of this series require my Xen cleanup series > https://lore.kernel.org/lkml/20180717120113.12756-1-jgross@suse.com/ > which hides more Xen PV-only code behind CONFIG_XEN_PV. > > Changes in V2: > - patch 4: shorten pv_ops sub-structure names (Jan Beulich) > - patch 11: new patch > > Juergen Gross (11): > x86/paravirt: make paravirt_patch_call() and paravirt_patch_jmp() > static > x86/paravirt: remove clobbers parameter from paravirt patch functions > x86/paravirt: remove clobbers from struct paravirt_patch_site > x86/paravirt: use a single ops structure > x86/paravirt: remove unused paravirt bits > x86/paravirt: introduce new config option PARAVIRT_XXL > x86/paravirt: move items in pv_info under PARAVIRT_XXL umbrella > x86/paravirt: move the Xen-only pv_cpu_ops under the PARAVIRT_XXL > umbrella > x86/paravirt: move the Xen-only pv_irq_ops under the PARAVIRT_XXL > umbrella > x86/paravirt: move the Xen-only pv_mmu_ops under the PARAVIRT_XXL > umbrella > x86/paravirt: remove unneeded mmu related paravirt ops bits > > arch/x86/Kconfig | 3 + > arch/x86/hyperv/mmu.c | 4 +- > arch/x86/include/asm/debugreg.h | 2 +- > arch/x86/include/asm/desc.h | 4 +- > arch/x86/include/asm/fixmap.h | 2 +- > arch/x86/include/asm/irqflags.h | 56 ++-- > arch/x86/include/asm/mmu_context.h | 4 +- > arch/x86/include/asm/msr.h | 4 +- > arch/x86/include/asm/paravirt.h | 399 +++++++++++++--------------- > arch/x86/include/asm/paravirt_types.h | 77 +++--- > arch/x86/include/asm/pgalloc.h | 2 +- > arch/x86/include/asm/pgtable-3level_types.h | 2 +- > arch/x86/include/asm/pgtable.h | 7 +- > arch/x86/include/asm/processor.h | 4 +- > arch/x86/include/asm/ptrace.h | 3 +- > arch/x86/include/asm/segment.h | 2 +- > arch/x86/include/asm/special_insns.h | 4 +- > arch/x86/kernel/alternative.c | 2 +- > arch/x86/kernel/asm-offsets.c | 13 +- > arch/x86/kernel/asm-offsets_64.c | 9 +- > arch/x86/kernel/cpu/common.c | 4 +- > arch/x86/kernel/cpu/vmware.c | 4 +- > arch/x86/kernel/head_64.S | 2 +- > arch/x86/kernel/kvm.c | 17 +- > arch/x86/kernel/kvmclock.c | 4 +- > arch/x86/kernel/paravirt-spinlocks.c | 15 +- > arch/x86/kernel/paravirt.c | 292 ++++++++++---------- > arch/x86/kernel/paravirt_patch_32.c | 57 ++-- > arch/x86/kernel/paravirt_patch_64.c | 65 ++--- > arch/x86/kernel/tsc.c | 2 +- > arch/x86/kernel/vsmp_64.c | 24 +- > arch/x86/xen/Kconfig | 1 + > arch/x86/xen/enlighten_pv.c | 31 ++- > arch/x86/xen/irq.c | 2 +- > arch/x86/xen/mmu_hvm.c | 2 +- > arch/x86/xen/mmu_pv.c | 28 +- > arch/x86/xen/spinlock.c | 11 +- > arch/x86/xen/time.c | 4 +- > drivers/xen/time.c | 2 +- > 39 files changed, 575 insertions(+), 595 deletions(-) > Ping? Juergen