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Date: Mon, 13 Aug 2018 09:37:28 +0200
From: Juergen Gross <jgross@...e.com>
To: linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
x86@...nel.org, virtualization@...ts.linux-foundation.org
Cc: akataria@...are.com, rusty@...tcorp.com.au,
boris.ostrovsky@...cle.com, hpa@...or.com, tglx@...utronix.de,
mingo@...hat.com, peterz@...radead.org,
Juergen Gross <jgross@...e.com>
Subject: [PATCH v2 00/11] x86/paravirt: several cleanups
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(-)
--
2.13.7
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