diff options
| author | Thomas Schwinge <tschwinge@gnu.org> | 2006-03-04 20:39:11 +0000 |
|---|---|---|
| committer | Thomas Schwinge <tschwinge@gnu.org> | 2009-06-18 00:26:35 +0200 |
| commit | 6acee54e03c9b6380b148c3005578c4a401a0da9 (patch) | |
| tree | 751c5dbb316b97cf8021cd5a2cbb490a2234651d /i386 | |
| parent | c2ec6c8e2da58e45b4a42a554e5363d0d276710a (diff) | |
2006-03-04 Samuel Thibault <samuel.thibault@ens-lyon.org>
[ patch #4737 ]
* i386/i386/iopb.c: Include "vm_param.h".
(io_tss_init): Fix address and limit of user TSS.
Diffstat (limited to 'i386')
| -rw-r--r-- | i386/i386/iopb.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/i386/i386/iopb.c b/i386/i386/iopb.c index d2addac..97e10c9 100644 --- a/i386/i386/iopb.c +++ b/i386/i386/iopb.c @@ -43,6 +43,7 @@ #include "iopb.h" #include "seg.h" #include "gdt.h" +#include "vm_param.h" /* * A set of ports for an IO device. @@ -242,8 +243,8 @@ io_tss_init( iopb_tss_t io_tss, boolean_t access_all) /* allow access or not */ { - vm_offset_t addr = (vm_offset_t) io_tss; - vm_size_t size = (char *)&io_tss->barrier - (char *)io_tss; + vm_offset_t addr = kvtolin (io_tss); + vm_size_t limit = (char *)&io_tss->barrier - (char *)io_tss; bzero(&io_tss->tss, sizeof(struct i386_tss)); io_tss->tss.io_bit_map_offset @@ -252,11 +253,11 @@ io_tss_init( io_bitmap_init(io_tss->bitmap, access_all); io_tss->barrier = ~0; queue_init(&io_tss->io_port_list); - io_tss->iopb_desc[0] = ((size-1) & 0xffff) + io_tss->iopb_desc[0] = (limit & 0xffff) | ((addr & 0xffff) << 16); io_tss->iopb_desc[1] = ((addr & 0x00ff0000) >> 16) | ((ACC_TSS|ACC_PL_K|ACC_P) << 8) - | ((size-1) & 0x000f0000) + | (limit & 0x000f0000) | (addr & 0xff000000); } |