diff options
Diffstat (limited to 'arch/x86/kernel/vmi_32.c')
| -rw-r--r-- | arch/x86/kernel/vmi_32.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c index 4cfda7dbe90f..a635b22de25f 100644 --- a/arch/x86/kernel/vmi_32.c +++ b/arch/x86/kernel/vmi_32.c @@ -62,6 +62,7 @@ static struct { void (*cpuid)(void /* non-c */); void (*_set_ldt)(u32 selector); void (*set_tr)(u32 selector); + void (*write_idt_entry)(struct desc_struct *, int, u32, u32); void (*set_kernel_stack)(u32 selector, u32 sp0); void (*allocate_page)(u32, u32, u32, u32, u32); void (*release_page)(u32, u32); @@ -214,6 +215,12 @@ static void vmi_set_tr(void) vmi_ops.set_tr(GDT_ENTRY_TSS*sizeof(struct desc_struct)); } +static void vmi_write_idt_entry(gate_desc *dt, int entry, const gate_desc *g) +{ + u32 *idt_entry = (u32 *)g; + vmi_ops.write_idt_entry(dt, entry, idt_entry[0], idt_entry[2]); +} + static void vmi_load_sp0(struct tss_struct *tss, struct thread_struct *thread) { @@ -792,7 +799,8 @@ static inline int __init activate_vmi(void) pv_cpu_ops.load_tls = vmi_load_tls; para_fill(pv_cpu_ops.write_ldt_entry, WriteLDTEntry); para_fill(pv_cpu_ops.write_gdt_entry, WriteGDTEntry); - para_fill(pv_cpu_ops.write_idt_entry, WriteIDTEntry); + para_wrap(pv_cpu_ops.write_idt_entry, vmi_write_idt_entry, + write_idt_entry, WriteIDTEntry); para_wrap(pv_cpu_ops.load_sp0, vmi_load_sp0, set_kernel_stack, UpdateKernelStack); para_fill(pv_cpu_ops.set_iopl_mask, SetIOPLMask); para_fill(pv_cpu_ops.io_delay, IODelay); |