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| author | Arnd Bergmann <arnd@arndb.de> | 2012-10-09 10:33:52 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-10-09 20:29:01 +0200 |
| commit | f880b67dcbdedb49453f88d2ccb1a0937b046d82 (patch) | |
| tree | 54d216190fd6233322903bfb81dec8611971b279 | |
| parent | f3accb122f2c758494a6db3b9e9a8cd62aafcf83 (diff) | |
| download | talos-op-linux-f880b67dcbdedb49453f88d2ccb1a0937b046d82.tar.gz talos-op-linux-f880b67dcbdedb49453f88d2ccb1a0937b046d82.zip | |
ARM: Xen: fix initial build problems
* The XEN_BALLOON code requires the balloon infrastructure that is not
getting built on ARM.
* The tmem hypercall is not available on ARM
* ARMv6 does not support cmpxchg on 16-bit words that are used in the
Xen grant table code, so we must ensure that Xen support is only
built on ARMv7-only kernels not combined ARMv6/v7 kernels.
* sys-hypervisor.c needs to include linux/err.h in order to use the
IS_ERR/PTR_ERR/ERR_PTR family of functions.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: xen-devel@lists.xensource.com
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/xen/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/xen/sys-hypervisor.c | 1 |
3 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 6d2f7f5c0036..e1d6ab2b3c93 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1846,6 +1846,7 @@ config XEN_DOM0 config XEN bool "Xen guest support on ARM (EXPERIMENTAL)" depends on EXPERIMENTAL && ARM && OF + depends on CPU_V7 && !CPU_V6 help Say Y if you want to run Linux in a Virtual Machine on Xen on ARM. diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index d4dffcd52873..126d8ce591ce 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -3,6 +3,7 @@ menu "Xen driver support" config XEN_BALLOON bool "Xen memory balloon driver" + depends on !ARM default y help The balloon driver allows the Xen domain to request more memory from @@ -145,6 +146,7 @@ config SWIOTLB_XEN config XEN_TMEM bool + depends on !ARM default y if (CLEANCACHE || FRONTSWAP) help Shim to interface in-kernel Transcendent Memory hooks diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c index 5e5ad7e28858..66a0a1475acf 100644 --- a/drivers/xen/sys-hypervisor.c +++ b/drivers/xen/sys-hypervisor.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/kobject.h> +#include <linux/err.h> #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> |
