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[v2,1/2] build: introduce CONFIG_NR_CPUS in Kconfig

Message ID 1452696539-31728-1-git-send-email-cardoe@cardoe.com (mailing list archive)
State New, archived
Headers show

Commit Message

Douglas Goldstein Jan. 13, 2016, 2:48 p.m. UTC 
Introduce an option where the user can modifiy the maximum number of
supported physical CPUs.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
---
 xen/arch/Kconfig     | 8 ++++++++
 xen/arch/arm/Kconfig | 2 ++
 xen/arch/x86/Kconfig | 2 ++
 3 files changed, 12 insertions(+)
 create mode 100644 xen/arch/Kconfig
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Patch

diff --git a/xen/arch/Kconfig b/xen/arch/Kconfig
new file mode 100644
index 0000000..cf0acb7
--- /dev/null
+++ b/xen/arch/Kconfig
@@ -0,0 +1,8 @@ 
+
+config NR_CPUS
+	int "Maximum number of physical CPUs"
+	range 1 4095
+	default "256" if X86
+	default "128" if ARM
+	---help---
+	  Specifies the maximum number of physical CPUs which Xen will support.
diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig
index 2cab17b..60e923c 100644
--- a/xen/arch/arm/Kconfig
+++ b/xen/arch/arm/Kconfig
@@ -31,6 +31,8 @@  config ARCH_DEFCONFIG
 
 menu "Architecture Features"
 
+source "arch/Kconfig"
+
 # Select HAS_GICV3 if GICv3 is supported
 config HAS_GICV3
 	bool
diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig
index d629767..4781b34 100644
--- a/xen/arch/x86/Kconfig
+++ b/xen/arch/x86/Kconfig
@@ -25,6 +25,8 @@  config ARCH_DEFCONFIG
 
 menu "Architecture Features"
 
+source "arch/Kconfig"
+
 config BIGMEM
 	bool "big memory support"
 	default n