diff options
| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2008-10-17 04:18:11 +0200 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-10-17 19:10:06 +0200 |
| commit | ba9cc328bfeec3ec5fad3356dd53bc0c1ff506b0 (patch) | |
| tree | 710cf8b9fec87c849e7396ad1317729445eca54c /arch | |
| parent | ia64/xen: preliminary support for save/restore. (diff) | |
| download | linux-ba9cc328bfeec3ec5fad3356dd53bc0c1ff506b0.tar.xz linux-ba9cc328bfeec3ec5fad3356dd53bc0c1ff506b0.zip | |
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@hp.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/Kconfig | 32 | ||||
| -rw-r--r-- | arch/ia64/xen/Kconfig | 26 |
2 files changed, 58 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 3b7aa38254a8..9318dee22537 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -108,6 +108,33 @@ 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 @@ -129,6 +156,7 @@ 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". @@ -179,6 +207,10 @@ 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 000000000000..f1683a20275b --- /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 |