From: Attilio Rao <attilio.rao@citrix.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Ian Campbell <Ian.Campbell@citrix.com>,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
<linux-kernel@vger.kernel.org>, <x86@kernel.org>,
<xen-devel@lists.xensource.com>
Cc: Attilio Rao <attilio.rao@citrix.com>
Subject: [PATCH 0/5] X86/XEN: Merge x86_init.paging.pagetable_setup_start and x86_init.paging.pagetable_setup_done PVOPS and document the semantic
Date: Tue, 21 Aug 2012 02:14:01 +0100 [thread overview]
Message-ID: <1345511646-12427-1-git-send-email-attilio.rao@citrix.com> (raw)
Currently the definition of x86_init.paging.pagetable_setup_start and
x86_init.paging.pagetable_setup_done is twisted and not really well
defined (in terms of prototypes desired). More specifically:
pagetable_setup_start:
* it is a nop on x86_32
* it is a nop for the XEN case
* cleans up the boot time page table in the x86_64 case
pagetable_setup_done:
* it is a nop on x86_32
* sets up accessor functions for pagetable manipulation, for the
XEN case
* it is a nop on x86_64
Most of this logic can be skipped by creating a new PVOPS that can handle
pagetable setup and pre/post operations on it.
The new PVOPS must be called only once, during boot-time setup and
after the direct mapping for physical memory is available.
Attilio Rao (5):
XEN: Remove the base argument from
x86_init.paging.pagetable_setup_done PVOPS
XEN: Remove the base argument from
x86_init.paging.pagetable_setup_start PVOPS
X86/XEN: Introduce the x86_init.paging.pagetable_init() PVOPS
X86/XEN: Retire now unused x86_init.paging.pagetable_setup_start and
x86_init.paging.pagetable_setup_done PVOPS
X86/XEN: Add few lines explaining simple semantic for
x86_init.paging.pagetable_init PVOPS
arch/x86/include/asm/pgtable_types.h | 6 ++----
arch/x86/include/asm/x86_init.h | 11 +++++++----
arch/x86/kernel/setup.c | 4 +---
arch/x86/kernel/x86_init.c | 4 +---
arch/x86/mm/init_32.c | 12 ++++++------
arch/x86/xen/mmu.c | 18 +++++++-----------
6 files changed, 24 insertions(+), 31 deletions(-)
--
1.7.2.5
next reply other threads:[~2012-08-21 1:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-21 1:14 Attilio Rao [this message]
2012-08-21 1:14 ` [PATCH 1/5] XEN: Remove the base argument from x86_init.paging.pagetable_setup_done PVOPS Attilio Rao
2012-08-21 1:14 ` [PATCH 2/5] XEN: Remove the base argument from x86_init.paging.pagetable_setup_start PVOPS Attilio Rao
2012-08-21 15:41 ` Thomas Gleixner
2012-08-21 15:49 ` Attilio Rao
2012-08-21 16:04 ` Thomas Gleixner
2012-08-21 1:14 ` [PATCH 3/5] X86/XEN: Introduce the x86_init.paging.pagetable_init PVOPS Attilio Rao
2012-08-21 15:44 ` Thomas Gleixner
2012-08-21 20:26 ` Attilio Rao
2012-08-21 1:14 ` [PATCH 4/5] X86/XEN: Retire now unused x86_init.paging.pagetable_setup_start and x86_init.paging.pagetable_setup_done PVOPS Attilio Rao
2012-08-21 1:14 ` [PATCH 5/5] X86/XEN: Add few lines explaining simple semantic for x86_init.paging.pagetable_init PVOPS Attilio Rao
2012-08-21 11:09 ` [PATCH 0/5] X86/XEN: Merge x86_init.paging.pagetable_setup_start and x86_init.paging.pagetable_setup_done PVOPS and document the semantic Stefano Stabellini
2012-08-21 14:53 ` Konrad Rzeszutek Wilk
2012-08-21 15:22 ` Thomas Gleixner
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