diff options
Diffstat (limited to 'drivers/pnp/pnpbios/bioscalls.c')
| -rw-r--r-- | drivers/pnp/pnpbios/bioscalls.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c index 7e6b5a3b328..fc83783c3a9 100644 --- a/drivers/pnp/pnpbios/bioscalls.c +++ b/drivers/pnp/pnpbios/bioscalls.c @@ -55,12 +55,13 @@ __asm__(".text \n" #define Q2_SET_SEL(cpu, selname, address, size) \ do { \ -struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \ -set_base(gdt[(selname) >> 3], (u32)(address)); \ -set_limit(gdt[(selname) >> 3], size); \ + struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \ + set_desc_base(&gdt[(selname) >> 3], (u32)(address)); \ + set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \ } while(0) -static struct desc_struct bad_bios_desc; +static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, + (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1); /* * At some point we want to use this stack frame pointer to unwind @@ -476,19 +477,15 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header) pnp_bios_callpoint.offset = header->fields.pm16offset; pnp_bios_callpoint.segment = PNP_CS16; - bad_bios_desc.a = 0; - bad_bios_desc.b = 0x00409200; - - set_base(bad_bios_desc, __va((unsigned long)0x40 << 4)); - _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4)); for_each_possible_cpu(i) { struct desc_struct *gdt = get_cpu_gdt_table(i); if (!gdt) continue; - set_base(gdt[GDT_ENTRY_PNPBIOS_CS32], &pnp_bios_callfunc); - set_base(gdt[GDT_ENTRY_PNPBIOS_CS16], - __va(header->fields.pm16cseg)); - set_base(gdt[GDT_ENTRY_PNPBIOS_DS], - __va(header->fields.pm16dseg)); + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_CS32], + (unsigned long)&pnp_bios_callfunc); + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_CS16], + (unsigned long)__va(header->fields.pm16cseg)); + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS], + (unsigned long)__va(header->fields.pm16dseg)); } } |