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From: Eduardo Pereira Habkost <ehabkost@redhat.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
	glommer@gmail.com, tglx@linutronix.de, avi@qumranet.com,
	anthony@codemonkey.ws, virtualization@lists.linux-foundation.org,
	rusty@rustcorp.com.au, ak@suse.de, chrisw@sous-sol.org,
	rostedt@goodmis.org, hpa@zytor.com, zach@vmware.com,
	roland@redhat.com, mtosatti@redhat.com
Subject: [PATCH 1/2] Allow enabling PARAVIRT without any guest implementation
Date: Tue, 22 Jan 2008 16:50:18 -0200	[thread overview]
Message-ID: <20080122185018.GY7338@blackpad> (raw)
In-Reply-To: <47962E1D.2090308@goop.org>


On Tue, Jan 22, 2008 at 09:55:41AM -0800, Jeremy Fitzhardinge wrote:
> Eduardo Pereira Habkost wrote:
> >If this is desirable for broader testing, we can make config PARAVIRT
> >visible and selectable on menuconfig, even when there is no guest
> >implementation being enabled. Should I do it?
> >  
> 
> Yes please.
> 

This will allow people to enable the paravirt_ops code even when no
guest support is enabled, for broader testing of the paravirt_ops code.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 arch/x86/Kconfig |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4e910d8..715bbcd 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -325,15 +325,6 @@ config SCHED_NO_NO_OMIT_FRAME_POINTER
 
 	  If in doubt, say "Y".
 
-config PARAVIRT
-	bool
-	depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
-	help
-	  This changes the kernel so it can modify itself when it is run
-	  under a hypervisor, potentially improving performance significantly
-	  over full virtualization.  However, when run without a hypervisor
-	  the kernel is theoretically slower and slightly larger.
-
 menuconfig PARAVIRT_GUEST
 	bool "Paravirtualized guest support"
 	depends on X86_32
@@ -359,6 +350,15 @@ config VMI
 
 source "arch/x86/lguest/Kconfig"
 
+config PARAVIRT
+	bool "Enable paravirtualization code"
+	depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
+	help
+	  This changes the kernel so it can modify itself when it is run
+	  under a hypervisor, potentially improving performance significantly
+	  over full virtualization.  However, when run without a hypervisor
+	  the kernel is theoretically slower and slightly larger.
+
 endif
 
 config ACPI_SRAT
-- 
1.5.3.4

-- 
Eduardo

  reply	other threads:[~2008-01-22 18:55 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-21 21:48 [PATCH 0/4] paravirt_ops-64 compile fixes Eduardo Habkost
2008-01-21 21:48 ` [PATCH 1/4] Add missing semicolon to SWAPGS macro Eduardo Habkost
2008-01-21 21:48 ` Eduardo Habkost
2008-01-21 21:48 ` [PATCH 2/4] include/asm-x86/paravirt.h: x86_64 mmu operations Eduardo Habkost
2008-01-21 21:48 ` Eduardo Habkost
2008-01-21 21:48 ` [PATCH 3/4] Don't set pagetable_setup_{start,done} hooks on x86_64 Eduardo Habkost
2008-01-21 21:48 ` Eduardo Habkost
2008-01-21 21:48 ` [PATCH 4/4] Fill in missing pv_mmu_ops entries for PAGETABLE_LEVELS >= 3 Eduardo Habkost
2008-01-21 21:48 ` Eduardo Habkost
2008-01-22 12:02 ` [PATCH 0/4] paravirt_ops-64 compile fixes Ingo Molnar
2008-01-22 12:02 ` Ingo Molnar
2008-01-22 12:34   ` Eduardo Pereira Habkost
2008-01-22 12:34   ` Eduardo Pereira Habkost
2008-01-22 17:55     ` Jeremy Fitzhardinge
2008-01-22 18:50       ` Eduardo Pereira Habkost [this message]
2008-01-22 18:52         ` [PATCH 2/2] Remove depends on X86_32 from PARAVIRT & PARAVIRT_GUEST Eduardo Pereira Habkost
2008-01-22 18:52         ` Eduardo Pereira Habkost
2008-01-22 18:50       ` [PATCH 1/2] Allow enabling PARAVIRT without any guest implementation Eduardo Pereira Habkost
2008-01-22 19:47       ` [PATCH 0/4] paravirt_ops-64 compile fixes Ingo Molnar
2008-01-22 20:05         ` Jeremy Fitzhardinge
2008-01-22 20:05         ` Jeremy Fitzhardinge
2008-01-22 19:47       ` Ingo Molnar
2008-01-22 17:55     ` Jeremy Fitzhardinge

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