Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

From: Juergen Gross
Date: Wed Feb 18 2015 - 04:59:27 EST

On 02/18/2015 10:49 AM, Jan Beulich wrote:
On 18.02.15 at 10:37, <JGross@xxxxxxxx> wrote:
On 02/18/2015 10:21 AM, Paul Bolle wrote:
On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote:
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -23,14 +23,29 @@ config XEN_PVHVM
def_bool y
depends on XEN && PCI && X86_LOCAL_APIC

- int
- default 500 if X86_64
- default 64 if X86_32
- depends on XEN
- help
- This only affects the sizing of some bss arrays, the unused
- portions of which are freed.
+if X86_64

&& XEN

The complete directory is made only if CONFIG_XEN is set.

But that doesn't mean this file gets used only when XEN is enabled.

Oh, you are right. I seem to have mixed up make and Kconfig of the

I would think though that an eventual "if XEN" should have wider
scope than just this option (i.e. likely almost the entire file).


So either I'll add the XEN dependency for the new option or I do
another patch adding "if XEN" just below configuring XEN and remove
the XEN dependencies in the rest of the entries.

As Luis is just doing a rework of XEN Kconfig stuff, I think I'll add
the XEN dependency.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at