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authorThomas Schwinge <tschwinge@gnu.org>2006-03-04 20:39:11 +0000
committerThomas Schwinge <tschwinge@gnu.org>2009-06-18 00:26:35 +0200
commit6acee54e03c9b6380b148c3005578c4a401a0da9 (patch)
tree751c5dbb316b97cf8021cd5a2cbb490a2234651d
parentc2ec6c8e2da58e45b4a42a554e5363d0d276710a (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.
-rw-r--r--ChangeLog6
-rw-r--r--i386/i386/iopb.c9
2 files changed, 11 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog
index f464420..fa7c330 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+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.
+
2006-03-04 Thomas Schwinge <tschwinge@gnu.org>
Remove unused and unsupported code. Consult the file
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);
}