[PATCH 16/61] uml: fix processor selection to exclude unsupported processors and features

From: Chris Wright
Date: Wed Nov 01 2006 - 00:39:01 EST


-stable review patch. If anyone has any objections, please let us know.
------------------

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@xxxxxxxx>

Makes UML compile on any possible processor choice. The two problems were:

*) x86 code, when 386 is selected, checks at runtime boot_cpuflags, which we do
not have.
*) 3Dnow support for memcpy() et al. does not compile currently and fixing this
is not trivial, so simply disable it; with this change, if one selects MK7
UML compiles (while it did not).
Merged upstream.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>

---
arch/i386/Kconfig.cpu | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-2.6.18.1.orig/arch/i386/Kconfig.cpu
+++ linux-2.6.18.1/arch/i386/Kconfig.cpu
@@ -7,6 +7,7 @@ choice

config M386
bool "386"
+ depends on !UML
---help---
This is the processor type of your CPU. This information is used for
optimizing purposes. In order to compile a kernel that can run on
@@ -301,7 +302,7 @@ config X86_USE_PPRO_CHECKSUM

config X86_USE_3DNOW
bool
- depends on MCYRIXIII || MK7 || MGEODE_LX
+ depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
default y

config X86_OOSTORE

--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/