On Wed, Jun 18, 2008 at 03:13:13PM -0700, Luck, Tony wrote:
> > introduce CONFIG_PARAVIRT_GUEST, CONFIG_PARAVIRT for
> > paravirtualized guest.
> > introduce CONFING_XEN, CONFIG_IA64_XEN for xen.
>
> s/CONFING_XEN/CONFIG_XEN/
>
> Would it make sense to rename CONFIG_IA64_XEN to be
> CONFIG_IA64_XEN_GUEST? The comments you add to
> arch/ia64/Kconfig say that this is what it means.
Sounds reasonable.
>From 0ab56a68e392c4d0fcf244cb91538e9645af5929 Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Date: Thu, 19 Jun 2008 20:01:33 +0900
Subject: [PATCH] ia64/pv_ops: update Kconfig for paravirtualized guest and xen.
introduce CONFIG_PARAVIRT_GUEST, CONFIG_PARAVIRT for
paravirtualized guest.
introduce CONFIG_XEN, CONFIG_IA64_XEN_GUEST for xen.
Signed-off-by: Alex Williamson <alex.williamson@xxxxxx>
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
---
arch/ia64/Kconfig | 32 ++++++++++++++++++++++++++++++++
arch/ia64/xen/Kconfig | 26 ++++++++++++++++++++++++++
2 files changed, 58 insertions(+), 0 deletions(-)
create mode 100644 arch/ia64/xen/Kconfig
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 16be414..91d8c1b 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -116,6 +116,33 @@ config AUDIT_ARCH
bool
default y
+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
+
+config PARAVIRT
+ bool "Enable paravirtualization code"
+ depends on PARAVIRT_GUEST
+ default y
+ bool
+ default y
+ 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.
+
+
+source "arch/ia64/xen/Kconfig"
+
+endif
+
choice
prompt "System type"
default IA64_GENERIC
@@ -137,6 +164,7 @@ config IA64_GENERIC
SGI-SN2 For SGI Altix systems
SGI-UV For SGI UV systems
Ski-simulator For the HP simulator
<http://www.hpl.hp.com/research/linux/ski/>
+ Xen-domU For xen domU system
If you don't know what to do, choose "generic".
@@ -187,6 +215,10 @@ config IA64_HP_SIM
bool "Ski-simulator"
select SWIOTLB
+config IA64_XEN_GUEST
+ bool "Xen guest"
+ depends on XEN
+
endchoice
choice
diff --git a/arch/ia64/xen/Kconfig b/arch/ia64/xen/Kconfig
new file mode 100644
index 0000000..f1683a2
--- /dev/null
+++ b/arch/ia64/xen/Kconfig
@@ -0,0 +1,26 @@
+#
+# This Kconfig describes xen/ia64 options
+#
+
+config XEN
+ bool "Xen hypervisor support"
+ default y
+ depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB && EXPERIMENTAL
+ select XEN_XENCOMM
+ select NO_IDLE_HZ
+
+ # those are required to save/restore.
+ select ARCH_SUSPEND_POSSIBLE
+ select SUSPEND
+ select PM_SLEEP
+ help
+ Enable Xen hypervisor support. Resulting kernel runs
+ both as a guest OS on Xen and natively on hardware.
+
+config XEN_XENCOMM
+ depends on XEN
+ bool
+
+config NO_IDLE_HZ
+ depends on XEN
+ bool
--
1.5.3
--
yamahata
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