AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

Normalize config options for guest support

Browse Source 
1) Group all the "guest OS" support options together, under a PARAVIRT_GUEST
   menu.
2) Make those options select CONFIG_PARAVIRT, as suggested by Andi.
3) Make kconfig help titles consistent.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Zach Amsden <zach@vmware.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Chris Wright <chrisw@sous-sol.org>
This commit is contained in:
Rusty Russell 2007-10-22 10:55:21 +10:00
parent 0895e91d60
commit d3d1c4bdf1
3 changed files with 32 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
arch/i386/Kconfig
View File

@ -227,28 +227,46 @@ config SCHED_NO_NO_OMIT_FRAME_POINTER
If in doubt, say "Y".
config PARAVIRT
bool "Paravirtualization support (EXPERIMENTAL)"
depends on EXPERIMENTAL
bool
depends on !(X86_VISWS || X86_VOYAGER)
help
Paravirtualization is a way of running multiple instances of
Linux on the same machine, under a hypervisor. This option
changes the kernel so it can modify itself when it is run
under a hypervisor, improving performance significantly.
However, when run without a hypervisor the kernel is
theoretically slower. If in doubt, say N.
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"
help
Say Y here to get to see options related to running Linux under
various hypervisors. This option alone does not add any kernel code.
If you say N, all options in this submenu will be skipped and disabled.
if PARAVIRT_GUEST
source "arch/x86/xen/Kconfig"
config VMI
bool "VMI Paravirt-ops support"
depends on PARAVIRT
bool "VMI Guest support"
select PARAVIRT
depends on !(X86_VISWS || X86_VOYAGER)
help
VMI provides a paravirtualized interface to the VMware ESX server
(it could be used by other hypervisors in theory too, but is not
at the moment), by linking the kernel to a GPL-ed ROM module
provided by the hypervisor.
config LGUEST_GUEST
bool "Lguest guest support"
select PARAVIRT
depends on !X86_PAE
help
Lguest is a tiny in-kernel hypervisor. Selecting this will
allow your kernel to boot under lguest. This option will increase
your kernel size by about 6k. If in doubt, say N.
endif
config ACPI_SRAT
bool
default y

5
arch/x86/xen/Kconfig
View File

@ -3,8 +3,9 @@
#
config XEN
bool "Enable support for Xen hypervisor"
depends on PARAVIRT && X86_CMPXCHG && X86_TSC && !NEED_MULTIPLE_NODES
bool "Xen guest support"
select PARAVIRT
depends on X86_CMPXCHG && X86_TSC && !NEED_MULTIPLE_NODES && !(X86_VISWS || X86_VOYAGER)
help
This is the Linux Xen port. Enabling this will allow the
kernel to boot in a paravirtualized environment under the

3
drivers/lguest/Kconfig
View File

@ -1,7 +1,6 @@
config LGUEST
tristate "Linux hypervisor example code"
depends on X86 && PARAVIRT && EXPERIMENTAL && !X86_PAE && FUTEX
select LGUEST_GUEST
depends on X86 && EXPERIMENTAL && !X86_PAE && FUTEX && !(X86_VISWS || X86_VOYAGER)
select HVC_DRIVER
---help---
This is a very simple module which allows you to run