linux-kernel - [PATCH v2 3/3] x86, platform, xen, kconfig: add xen defconfig helper

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Date:	Mon,  9 Jun 2014 11:36:24 -0700
From:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
To:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org,
	"Luis R. Rodriguez" <mcgrof@...e.com>,
	Borislav Petkov <bp@...e.de>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Michal Marek <mmarek@...e.cz>,
	Randy Dunlap <rdunlap@...radead.org>, levinsasha928@...il.com,
	mtosatti@...hat.com, fengguang.wu@...el.com,
	David Vrabel <david.vrabel@...rix.com>,
	Ian Campbell <Ian.Campbell@...rix.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	xen-devel@...ts.xenproject.org
Subject: [PATCH v2 3/3] x86, platform, xen, kconfig: add xen defconfig helper

From: "Luis R. Rodriguez" <mcgrof@...e.com>

This lets you build a kernel which can support xen dom0
or xen guests by just using:

   make xenconfig

Technically xen supports a dom0 kernel and also a guest
kernel configuration but upon review with the xen team
since we don't have many dom0 options its best to just
combine these two into one.

Cc: Borislav Petkov <bp@...e.de>
Cc: Pekka Enberg <penberg@...nel.org>
Cc: David Rientjes <rientjes@...gle.com>
Cc: Michal Marek <mmarek@...e.cz>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: penberg@...nel.org
Cc: levinsasha928@...il.com
Cc: mtosatti@...hat.com
Cc: fengguang.wu@...el.com
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Ian Campbell <Ian.Campbell@...rix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: xen-devel@...ts.xenproject.org
Signed-off-by: Luis R. Rodriguez <mcgrof@...e.com>
---
 arch/x86/Makefile           |  5 +++++
 arch/x86/configs/xen.config | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 arch/x86/configs/xen.config

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 36eea65..cbd9e06 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -260,6 +260,10 @@ PHONY += kvmconfig
 kvmconfig:
 	$(call build-virtconfig,kvm_guest.config)
 
+PHONY += xenconfig
+xenconfig:
+	$(call build-virtconfig,xen.config)
+
 define archhelp
   echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'
   echo  '  install      - Install kernel using'
@@ -274,4 +278,5 @@ define archhelp
   echo  '                  FDARGS="..."  arguments for the booted kernel'
   echo  '                  FDINITRD=file initrd for the booted kernel'
   echo  '  kvmconfig	- Enable additional options for kvm guest kernel support'
+  echo  '  xenconfig    - Enable additional options for xen dom0 and guest kernel support'
 endef
diff --git a/arch/x86/configs/xen.config b/arch/x86/configs/xen.config
new file mode 100644
index 0000000..fbfbe5c
--- /dev/null
+++ b/arch/x86/configs/xen.config
@@ -0,0 +1,36 @@
+CONFIG_XEN=y
+CONFIG_XEN_DOM0=y
+CONFIG_XEN_PVHVM=y
+CONFIG_XEN_MAX_DOMAIN_MEMORY=500
+CONFIG_XEN_SAVE_RESTORE=y
+# CONFIG_XEN_DEBUG_FS is not set
+CONFIG_XEN_PVH=y
+CONFIG_PCI_XEN=y
+CONFIG_XEN_PCIDEV_FRONTEND=m
+CONFIG_XEN_BLKDEV_FRONTEND=m
+CONFIG_XEN_BLKDEV_BACKEND=m
+CONFIG_XEN_NETDEV_FRONTEND=m
+CONFIG_XEN_NETDEV_BACKEND=m
+CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
+CONFIG_HVC_XEN=y
+CONFIG_HVC_XEN_FRONTEND=y
+CONFIG_TCG_XEN=m
+CONFIG_XEN_WDT=m
+CONFIG_XEN_FBDEV_FRONTEND=y
+CONFIG_XEN_BALLOON=y
+CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
+CONFIG_XEN_SCRUB_PAGES=y
+CONFIG_XEN_DEV_EVTCHN=m
+CONFIG_XEN_BACKEND=y
+CONFIG_XENFS=m
+CONFIG_XEN_COMPAT_XENFS=y
+CONFIG_XEN_SYS_HYPERVISOR=y
+CONFIG_XEN_XENBUS_FRONTEND=y
+CONFIG_XEN_GNTDEV=m
+CONFIG_XEN_GRANT_DEV_ALLOC=m
+CONFIG_SWIOTLB_XEN=y
+CONFIG_XEN_PCIDEV_BACKEND=m
+CONFIG_XEN_PRIVCMD=m
+CONFIG_XEN_ACPI_PROCESSOR=m
+CONFIG_XEN_MCE_LOG=y
+CONFIG_XEN_HAVE_PVMMU=y
-- 
2.0.0.rc3.18.g00a5b79

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