x86: cpu architecture debug code, build fix, cleanup

move store_ldt outside the CONFIG_PARAVIRT section and
also clean up the code a bit.

Signed-off-by: Jaswinder Singh Rajput <jaswinder@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index dc27705..5623c50 100644 (file)
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -91,7 +91,6 @@ static inline int desc_empty(const void *ptr)
 #define store_gdt(dtr) native_store_gdt(dtr)
 #define store_idt(dtr) native_store_idt(dtr)
 #define store_tr(tr) (tr = native_store_tr())
-#define store_ldt(ldt) asm("sldt %0":"=m" (ldt))
 
 #define load_TLS(t, cpu) native_load_tls(t, cpu)
 #define set_ldt native_set_ldt
@@ -112,6 +111,8 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
 }
 #endif /* CONFIG_PARAVIRT */
 
+#define store_ldt(ldt) asm("sldt %0" : "=m"(ldt))
+
 static inline void native_write_idt_entry(gate_desc *idt, int entry,
                                          const gate_desc *gate)
 {

diff --git a/arch/x86/kernel/cpu/cpu_debug.c b/arch/x86/kernel/cpu/cpu_debug.c
index 0bdf4da..9abbcbd 100755 (executable)
--- a/arch/x86/kernel/cpu/cpu_debug.c
+++ b/arch/x86/kernel/cpu/cpu_debug.c
@@ -23,6 +23,7 @@
 #include <linux/smp.h>
 
 #include <asm/cpu_debug.h>
+#include <asm/paravirt.h>
 #include <asm/system.h>
 #include <asm/traps.h>
 #include <asm/apic.h>
@@ -427,7 +428,7 @@ static void print_tss(void *arg)
        seq_printf(seq, " CS\t:             %04x\n", seg);
        asm("movl %%ds,%0" : "=r" (seg));
        seq_printf(seq, " DS\t:             %04x\n", seg);
-       seq_printf(seq, " SS\t:             %04lx\n", regs->ss);
+       seq_printf(seq, " SS\t:             %04lx\n", regs->ss & 0xffff);
        asm("movl %%es,%0" : "=r" (seg));
        seq_printf(seq, " ES\t:             %04x\n", seg);
        asm("movl %%fs,%0" : "=r" (seg));