forked from luck/tmp_suning_uos_patched
x86: change write_ldt_entry signature
this patch changes the signature of write_ldt_entry. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> CC: Zachary Amsden <zach@vmware.com> CC: Jeremy Fitzhardinge <Jeremy.Fitzhardinge.citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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014b15be30
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@ -229,8 +229,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
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/* Install the new entry ... */
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install:
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write_ldt_entry(mm->context.ldt, ldt_info.entry_number,
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ldt.a, ldt.b);
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write_ldt_entry(mm->context.ldt, ldt_info.entry_number, &ldt);
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error = 0;
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out_unlock:
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@ -379,7 +379,7 @@ struct pv_cpu_ops pv_cpu_ops = {
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.store_idt = native_store_idt,
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.store_tr = native_store_tr,
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.load_tls = native_load_tls,
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.write_ldt_entry = write_dt_entry,
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.write_ldt_entry = native_write_ldt_entry,
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.write_gdt_entry = native_write_gdt_entry,
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.write_idt_entry = native_write_idt_entry,
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.load_sp0 = native_load_sp0,
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@ -64,6 +64,7 @@ static struct {
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void (*set_tr)(u32 selector);
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void (*write_idt_entry)(struct desc_struct *, int, u32, u32);
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void (*write_gdt_entry)(struct desc_struct *, int, u32, u32);
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void (*write_ldt_entry)(struct desc_struct *, int, u32, u32);
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void (*set_kernel_stack)(u32 selector, u32 sp0);
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void (*allocate_page)(u32, u32, u32, u32, u32);
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void (*release_page)(u32, u32);
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@ -229,6 +230,13 @@ static void vmi_write_gdt_entry(struct desc_struct *dt, int entry,
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vmi_ops.write_gdt_entry(dt, entry, gdt_entry[0], gdt_entry[2]);
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}
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static void vmi_write_ldt_entry(struct desc_struct *dt, int entry,
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const void *desc)
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{
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u32 *ldt_entry = (u32 *)desc;
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vmi_ops.write_idt_entry(dt, entry, ldt_entry[0], ldt_entry[2]);
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}
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static void vmi_load_sp0(struct tss_struct *tss,
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struct thread_struct *thread)
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{
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@ -805,7 +813,8 @@ static inline int __init activate_vmi(void)
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para_fill(pv_cpu_ops.store_idt, GetIDT);
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para_fill(pv_cpu_ops.store_tr, GetTR);
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pv_cpu_ops.load_tls = vmi_load_tls;
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para_fill(pv_cpu_ops.write_ldt_entry, WriteLDTEntry);
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para_wrap(pv_cpu_ops.write_ldt_entry, vmi_write_ldt_entry,
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write_ldt_entry, WriteLDTEntry);
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para_wrap(pv_cpu_ops.write_gdt_entry, vmi_write_gdt_entry,
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write_gdt_entry, WriteGDTEntry);
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para_wrap(pv_cpu_ops.write_idt_entry, vmi_write_idt_entry,
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@ -357,11 +357,11 @@ static void xen_load_tls(struct thread_struct *t, unsigned int cpu)
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}
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static void xen_write_ldt_entry(struct desc_struct *dt, int entrynum,
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u32 low, u32 high)
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const void *ptr)
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{
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unsigned long lp = (unsigned long)&dt[entrynum];
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xmaddr_t mach_lp = virt_to_machine(lp);
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u64 entry = (u64)high << 32 | low;
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u64 entry = *(u64 *)ptr;
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preempt_disable();
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@ -69,12 +69,19 @@ static inline void pack_gate(gate_desc *gate,
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#define load_TLS(t, cpu) native_load_tls(t, cpu)
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#define set_ldt native_set_ldt
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#define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
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#define write_ldt_entry(dt, entry, desc) \
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native_write_ldt_entry(dt, entry, desc)
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#define write_gdt_entry(dt, entry, desc, type) \
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native_write_gdt_entry(dt, entry, desc, type)
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#define write_idt_entry(dt, entry, g) native_write_idt_entry(dt, entry, g)
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#endif
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static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry,
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const void *desc)
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{
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memcpy(&ldt[entry], desc, sizeof(struct desc_struct));
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}
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static inline void native_write_idt_entry(gate_desc *idt, int entry,
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const gate_desc *gate)
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{
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@ -34,12 +34,9 @@ extern gate_desc idt_table[];
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extern struct desc_ptr cpu_gdt_descr[];
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static inline void write_ldt_entry(struct desc_struct *ldt,
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int entry, u32 entry_low, u32 entry_high)
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int entry, void *ptr)
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{
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__u32 *lp = (__u32 *)((entry << 3) + (char *)ldt);
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lp[0] = entry_low;
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lp[1] = entry_high;
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memcpy(&ldt[entry], ptr, 8);
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}
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/* the cpu gdt accessor */
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@ -96,8 +96,8 @@ struct pv_cpu_ops {
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void (*set_ldt)(const void *desc, unsigned entries);
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unsigned long (*store_tr)(void);
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void (*load_tls)(struct thread_struct *t, unsigned int cpu);
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void (*write_ldt_entry)(struct desc_struct *,
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int entrynum, u32 low, u32 high);
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void (*write_ldt_entry)(struct desc_struct *ldt, int entrynum,
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const void *desc);
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void (*write_gdt_entry)(struct desc_struct *,
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int entrynum, const void *desc, int size);
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void (*write_idt_entry)(gate_desc *,
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@ -660,9 +660,11 @@ static inline void load_TLS(struct thread_struct *t, unsigned cpu)
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{
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PVOP_VCALL2(pv_cpu_ops.load_tls, t, cpu);
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}
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static inline void write_ldt_entry(void *dt, int entry, u32 low, u32 high)
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static inline void write_ldt_entry(struct desc_struct *dt, int entry,
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const void *desc)
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{
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PVOP_VCALL4(pv_cpu_ops.write_ldt_entry, dt, entry, low, high);
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PVOP_VCALL3(pv_cpu_ops.write_ldt_entry, dt, entry, desc);
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}
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static inline void write_gdt_entry(struct desc_struct *dt, int entry,
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