Add support for 32bit PCI BIOS entry.

Create a new code blob (code32seg) with support for 32bit functions
    that need to utilize explicit segment accesses.
This code blob uses global variables relative to %gs and with a
    dynamic code offset (determined by get_global_offset()).
Add BIOS32 structure and code.
Add code for 32bit PCI BIOS code.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/pmm.c b/src/pmm.c
index d05cc6f..dab8fb3 100644
--- a/src/pmm.c
+++ b/src/pmm.c
@@ -290,10 +290,11 @@ malloc_setup()
     PMMAllocs = NULL;
 
     // Memory in 0xf0000 area.
-    extern u8 code32_start[];
-    if ((u32)code32_start > BUILD_BIOS_ADDR)
+    extern u8 code32flat_start[];
+    if ((u32)code32flat_start > BUILD_BIOS_ADDR)
         // Clear unused parts of f-segment
-        memset((void*)BUILD_BIOS_ADDR, 0, (u32)code32_start - BUILD_BIOS_ADDR);
+        memset((void*)BUILD_BIOS_ADDR, 0
+               , (u32)code32flat_start - BUILD_BIOS_ADDR);
     memset(BiosTableSpace, 0, CONFIG_MAX_BIOSTABLE);
     ZoneFSeg.bottom = (u32)BiosTableSpace;
     ZoneFSeg.top = ZoneFSeg.cur = ZoneFSeg.bottom + CONFIG_MAX_BIOSTABLE;