lkml.org 
[lkml]   [2017]   [May]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 00/10] paravirt: make amount of paravirtualization configurable
Date
Today paravirtualization is a all-or-nothing game: either a kernel is
compiled with no paravirtualization support at all, or it is supporting
paravirtualized environments like Xen pv-guests or lguest additionally
to some paravirtualized tuning for KVM, Hyperv, VMWare or Xen
HVM-guests.

As support of pv-guests requires quite intrusive pv-hooks (e.g. all
access functions to page table entries, privileged instructions) it is
desirable to enable those hooks only in cases where support of
pv-guests is really desired.

With splitting up of Xen guest support into pv-guest support and
support for HVM-guests it is now possible to do the same for support
of paravirtualization: only if XEN_PV or LGUEST_GUEST are configured
full paravirtualization is required.

This patch series carves out pv-guest support form PARAVIRT by
introducing PARAVIRT_FULL config option selected by XEN_PV and
LGUEST_GUEST config options.

The series has been tested for 32 and 64 bit kernels without
PARAVIRT, with PARAVIRT, and with PARAVIRT + PARAVIRT_FULL configured.


Juergen Gross (10):
x86: remove stale prototype from arch/x86/include/asm/pgalloc.h
paravirt: remove unused function paravirt_disable_iospace()
xen: move interrupt handling for pv guests under CONFIG_XEN_PV
umbrella
xen: remove non-pv test from arch/x86/xen/irq.c
paravirt: add new PARAVIRT_FULL config item
paravirt: split pv_cpu_ops for support of PARAVIRT_FULL
paravirt: split pv_irq_ops for support of PARAVIRT_FULL
paravirt: split pv_mmu_ops for support of PARAVIRT_FULL
paravirt: split pv_info for support of PARAVIRT_FULL
paravirt: merge pv_ops_* structures into one

MAINTAINERS | 2 +-
arch/x86/Kconfig | 4 +
arch/x86/boot/compressed/misc.h | 1 +
arch/x86/entry/entry_32.S | 4 +-
arch/x86/entry/entry_64.S | 10 +-
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 | 40 +-
arch/x86/include/asm/mmu_context.h | 4 +-
arch/x86/include/asm/msr.h | 4 +-
arch/x86/include/asm/paravirt.h | 738 ++--------------------------
arch/x86/include/asm/paravirt_full.h | 714 +++++++++++++++++++++++++++
arch/x86/include/asm/paravirt_types.h | 243 +--------
arch/x86/include/asm/paravirt_types_full.h | 218 ++++++++
arch/x86/include/asm/pgalloc.h | 4 +-
arch/x86/include/asm/pgtable-3level_types.h | 4 +-
arch/x86/include/asm/pgtable.h | 8 +-
arch/x86/include/asm/processor.h | 4 +-
arch/x86/include/asm/ptrace.h | 5 +-
arch/x86/include/asm/segment.h | 2 +-
arch/x86/include/asm/special_insns.h | 25 +-
arch/x86/include/asm/tlbflush.h | 2 +-
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/alternative.c | 4 +-
arch/x86/kernel/asm-offsets.c | 21 +-
arch/x86/kernel/asm-offsets_64.c | 9 +-
arch/x86/kernel/cpu/common.c | 4 +-
arch/x86/kernel/cpu/vmware.c | 6 +-
arch/x86/kernel/head_64.S | 2 +-
arch/x86/kernel/kvm.c | 6 +-
arch/x86/kernel/kvmclock.c | 6 +-
arch/x86/kernel/paravirt.c | 303 +-----------
arch/x86/kernel/paravirt_full.c | 277 +++++++++++
arch/x86/kernel/paravirt_patch_32.c | 36 +-
arch/x86/kernel/paravirt_patch_64.c | 50 +-
arch/x86/kernel/tsc.c | 2 +-
arch/x86/kernel/vsmp_64.c | 18 +-
arch/x86/lguest/Kconfig | 1 +
arch/x86/lguest/boot.c | 100 ++--
arch/x86/xen/Kconfig | 1 +
arch/x86/xen/Makefile | 8 +-
arch/x86/xen/enlighten_hvm.c | 4 +-
arch/x86/xen/enlighten_pv.c | 58 ++-
arch/x86/xen/irq.c | 15 +-
arch/x86/xen/mmu_hvm.c | 2 +-
arch/x86/xen/mmu_pv.c | 34 +-
arch/x86/xen/time.c | 11 +-
drivers/xen/time.c | 2 +-
49 files changed, 1548 insertions(+), 1477 deletions(-)
create mode 100644 arch/x86/include/asm/paravirt_full.h
create mode 100644 arch/x86/include/asm/paravirt_types_full.h
create mode 100644 arch/x86/kernel/paravirt_full.c

--
2.12.0

\
 
 \ /
  Last update: 2017-05-19 17:50    [W:0.098 / U:0.388 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site