From: Alexander Graf <agraf@suse.de>
To: kvm list <kvm@vger.kernel.org>
Cc: virtualization@lists.linux-foundation.org,
Glauber Costa <glommer@redhat.com>, Avi Kivity <avi@redhat.com>,
Nick Piggin <npiggin@suse.de>
Subject: [PATCH 0/3] Split up pv-ops
Date: Wed, 18 Nov 2009 01:13:09 +0100 [thread overview]
Message-ID: <1258503192-14246-1-git-send-email-agraf@suse.de> (raw)
Paravirt ops is currently only capable of either replacing a lot of Linux
internal code or none at all. The are users that don't need all of the
possibilities pv-ops delivers though.
On KVM for example we're perfectly fine not using the PV MMU, thus not
touching any MMU code. That way we don't have to improve pv-ops to become
fast, we just don't compile the MMU parts in!
This patchset splits pv-ops into several smaller config options split by
feature category and then converts the KVM pv-ops code to use only the
bits that are required, lowering overhead.
Alexander Graf (3):
Split paravirt ops by functionality
Only export selected pv-ops feature structs
Split the KVM pv-ops support by feature
arch/x86/Kconfig | 72 +++++++++++++++++++++++++-
arch/x86/include/asm/apic.h | 2 +-
arch/x86/include/asm/desc.h | 4 +-
arch/x86/include/asm/fixmap.h | 2 +-
arch/x86/include/asm/highmem.h | 2 +-
arch/x86/include/asm/io_32.h | 4 +-
arch/x86/include/asm/io_64.h | 2 +-
arch/x86/include/asm/irqflags.h | 21 ++++++--
arch/x86/include/asm/mmu_context.h | 4 +-
arch/x86/include/asm/msr.h | 4 +-
arch/x86/include/asm/paravirt.h | 44 ++++++++++++++++-
arch/x86/include/asm/paravirt_types.h | 12 +++++
arch/x86/include/asm/pgalloc.h | 2 +-
arch/x86/include/asm/pgtable-3level_types.h | 2 +-
arch/x86/include/asm/pgtable.h | 2 +-
arch/x86/include/asm/processor.h | 2 +-
arch/x86/include/asm/required-features.h | 2 +-
arch/x86/include/asm/smp.h | 2 +-
arch/x86/include/asm/system.h | 13 +++--
arch/x86/include/asm/tlbflush.h | 4 +-
arch/x86/kernel/head_64.S | 2 +-
arch/x86/kernel/kvm.c | 22 ++++++---
arch/x86/kernel/paravirt.c | 37 +++++++++++--
arch/x86/kernel/tsc.c | 2 +-
arch/x86/kernel/vsmp_64.c | 2 +-
arch/x86/xen/Kconfig | 2 +-
26 files changed, 219 insertions(+), 50 deletions(-)
next reply other threads:[~2009-11-18 0:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-18 0:13 Alexander Graf [this message]
2009-11-18 0:13 ` [PATCH 1/3] Split paravirt ops by functionality Alexander Graf
2009-11-19 14:59 ` Jeremy Fitzhardinge
2009-11-19 15:21 ` Alexander Graf
2009-11-18 0:13 ` [PATCH 2/3] Only export selected pv-ops feature structs Alexander Graf
2009-11-18 0:13 ` [PATCH 3/3] Split the KVM pv-ops support by feature Alexander Graf
2009-11-18 1:33 ` Rusty Russell
2009-11-18 1:37 ` Alexander Graf
2009-11-19 7:42 ` [PATCH 0/3] Split up pv-ops Avi Kivity
2009-12-03 14:52 ` Alexander Graf
2009-12-03 15:00 ` Avi Kivity
2009-12-03 15:04 ` Alexander Graf
2009-12-03 15:07 ` Avi Kivity
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1258503192-14246-1-git-send-email-agraf@suse.de \
--to=agraf@suse.de \
--cc=avi@redhat.com \
--cc=glommer@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=npiggin@suse.de \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox