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x86: change write_idt_entry signature

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this patch changes write_idt_entry signature. It now takes a gate_desc
instead of the a and b parameters. It will allow it to be later unified
between i386 and x86_64.

Signed-off-by: Glauber de Oliveira Costa <[email protected]>
CC: Zachary Amsden <[email protected]>
CC: Jeremy Fitzhardinge <Jeremy.Fitzhardinge.citrix.com>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Glauber de Oliveira Costa 2008-01-30 13:31:12 +01:00 • committed by Ingo Molnar
commit 8d947344c4
6 changed files with 32 additions and 16 deletions
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10
include/asm-x86/desc_32.h
View file

@ -70,9 +70,15 @@ static inline void pack_gate(gate_desc *gate,
#define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
#define write_gdt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
#define write_idt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
#define write_idt_entry(dt, entry, g) native_write_idt_entry(dt, entry, g)
#endif
static inline void native_write_idt_entry(gate_desc *idt, int entry,
const gate_desc *gate)
{
memcpy(&idt[entry], gate, sizeof(*gate));
}
static inline void write_dt_entry(struct desc_struct *dt,
int entry, u32 entry_low, u32 entry_high)
{
@ -142,7 +148,7 @@ static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned s
{
gate_desc g;
pack_gate(&g, (unsigned long)addr, seg, type, 0);
write_idt_entry(idt_table, gate, g.a, g.b);
write_idt_entry(idt_table, gate, &g);
}
static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr)

9
include/asm-x86/paravirt.h
View file

@ -17,6 +17,7 @@
#include <linux/types.h>
#include <linux/cpumask.h>
#include <asm/kmap_types.h>
#include <asm/desc_defs.h>
struct page;
struct thread_struct;
@ -99,8 +100,8 @@ struct pv_cpu_ops {
int entrynum, u32 low, u32 high);
void (*write_gdt_entry)(struct desc_struct *,
int entrynum, u32 low, u32 high);
void (*write_idt_entry)(struct desc_struct *,
int entrynum, u32 low, u32 high);
void (*write_idt_entry)(gate_desc *,
int entrynum, const gate_desc *gate);
void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t);
void (*set_iopl_mask)(unsigned mask);
@ -667,9 +668,9 @@ static inline void write_gdt_entry(void *dt, int entry, u32 low, u32 high)
{
PVOP_VCALL4(pv_cpu_ops.write_gdt_entry, dt, entry, low, high);
}
static inline void write_idt_entry(void *dt, int entry, u32 low, u32 high)
static inline void write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
{
PVOP_VCALL4(pv_cpu_ops.write_idt_entry, dt, entry, low, high);
PVOP_VCALL3(pv_cpu_ops.write_idt_entry, dt, entry, g);
}
static inline void set_iopl_mask(unsigned mask)
{