[PATCH 23/23] ia64/pv_ops: update Kconfig for paravirtualized guest and xen.
Isaku Yamahata
yamahata at valinux.co.jp
Wed Apr 30 05:30:54 PDT 2008
introduce CONFIG_PARAVIRT_GUEST, CONFIG_PARAVIRT for
paravirtualized guest.
introduce CONFING_XEN, CONFIG_IA64_XEN for xen.
Signed-off-by: Alex Williamson <alex.williamson at hp.com>
Signed-off-by: Isaku Yamahata <yamahata at valinux.co.jp>
---
arch/ia64/Kconfig | 32 ++++++++++++++++++++++++++++++++
arch/ia64/xen/Kconfig | 21 +++++++++++++++++++++
2 files changed, 53 insertions(+), 0 deletions(-)
create mode 100644 arch/ia64/xen/Kconfig
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 0df5f6f..d6806c0 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
@@ -136,6 +163,7 @@ config IA64_GENERIC
HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
SGI-SN2 For SGI Altix 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".
@@ -174,6 +202,10 @@ config IA64_HP_SIM
bool "Ski-simulator"
select SWIOTLB
+config IA64_XEN
+ 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..d525fbb
--- /dev/null
+++ b/arch/ia64/xen/Kconfig
@@ -0,0 +1,21 @@
+#
+# 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
+ 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
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