From mboxrd@z Thu Jan 1 00:00:00 1970 From: Isaku Yamahata Date: Wed, 09 Apr 2008 04:50:30 +0000 Subject: [PATCH 23/23] ia64/pv_ops: update Kconfig for paravirtualized guest and xen. Message-Id: <1207716631167-git-send-email-yamahata@valinux.co.jp> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org introduce CONFIG_PARAVIRT_GUEST, CONFIG_PARAVIRT for paravirtualized guest. introduce CONFING_XEN, CONFIG_IA64_XEN for xen. Signed-off-by: Alex Williamson Signed-off-by: Isaku Yamahata --- arch/ia64/Kconfig | 31 +++++++++++++++++++++++++++++++ arch/ia64/xen/Kconfig | 21 +++++++++++++++++++++ 2 files changed, 52 insertions(+), 0 deletions(-) create mode 100644 arch/ia64/xen/Kconfig diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 8fa3faf..ca4d559 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -111,6 +111,33 @@ 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 @@ -169,6 +196,10 @@ 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..829b85c --- /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 && !(IA64_DIG || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_SGI_SN2 || IA64_HP_SIM) && 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