[Xen-devel] [patch 3/5] i386-gdt-pda Update lguest to initialize gdt without pda

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
---
 arch/i386/lguest/lguest.c |   15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

===================================================================
--- a/arch/i386/lguest/lguest.c
+++ b/arch/i386/lguest/lguest.c
@@ -34,7 +34,6 @@
 #include <asm/desc.h>
 #include <asm/setup.h>
 #include <asm/e820.h>
-#include <asm/pda.h>
 #include <asm/asm-offsets.h>
 #include <asm/mce.h>
 
@@ -449,12 +448,10 @@ static void lguest_power_off(void)
        hcall(LHCALL_CRASH, __pa("Power down"), 0, 0);
 }
 
-/* From head.S */
-extern void setup_pda(void);
-extern struct Xgt_desc_struct early_gdt_descr;
-
 static __attribute_used__ __init void lguest_init(void)
 {
+       struct Xgt_desc_struct gdt_desc;
+
        paravirt_ops.name = "lguest";
        paravirt_ops.paravirt_enabled = 1;
        paravirt_ops.kernel_rpl = 1;
@@ -513,10 +510,10 @@ static __attribute_used__ __init void lg
        /* We use top of mem for initial pagetables. */
        init_pg_tables_end = __pa(pg0);
 
-       /* set up PDA descriptor */
-       setup_pda();
-       load_gdt(&early_gdt_descr);
-       asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_PDA) : "memory");
+       /* set up gdt */
+       gdt_desc.address = (unsigned long)per_cpu__gdt_page.gdt;
+       gdt_desc.size = sizeof(struct gdt_page)-1;
+       load_gdt(&gdt_desc);
 
        reserve_top_address(lguest_data.reserve_mem);
 

-- 


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