[Xen-devel] [PATCH 1/2] x86: remove X86_INTEL_USERCOPY code

[Matt Wilson <msw@xxxxxxxxxx>]

Nothing defines CONFIG_X86_INTEL_USERCOPY, and as far as I can tell it
was never used even when Xen supported 32-bit x86.

Signed-off-by: Matt Wilson <msw@xxxxxxxxxx>
---
 xen/arch/x86/cpu/intel.c |   21 ---------------------
 1 files changed, 0 insertions(+), 21 deletions(-)

diff --git a/xen/arch/x86/cpu/intel.c b/xen/arch/x86/cpu/intel.c
index 9b71d36..072ecbc 100644
--- a/xen/arch/x86/cpu/intel.c
+++ b/xen/arch/x86/cpu/intel.c
@@ -18,13 +18,6 @@
 
 #define select_idle_routine(x) ((void)0)
 
-#ifdef CONFIG_X86_INTEL_USERCOPY
-/*
- * Alignment at which movsl is preferred for bulk memory copies.
- */
-struct movsl_mask movsl_mask __read_mostly;
-#endif
-
 static unsigned int probe_intel_cpuid_faulting(void)
 {
        uint64_t x;
@@ -229,20 +222,6 @@ static void __devinit init_intel(struct cpuinfo_x86 *c)
        /* Work around errata */
        Intel_errata_workarounds(c);
 
-#ifdef CONFIG_X86_INTEL_USERCOPY
-       /*
-        * Set up the preferred alignment for movsl bulk memory moves
-        */
-       switch (c->x86) {
-       case 6:         /* PII/PIII only like movsl with 8-byte alignment */
-               movsl_mask.mask = 7;
-               break;
-       case 15:        /* P4 is OK down to 8-byte alignment */
-               movsl_mask.mask = 7;
-               break;
-       }
-#endif
-
        if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
                (c->x86 == 0x6 && c->x86_model >= 0x0e))
                set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
-- 
1.7.4.5


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel