Changeset 64f6ef04 in mainline for kernel/arch/amd64/src/interrupt.c

Timestamp:

2010-06-27T23:54:45Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

05e3cb8

Parents:

a1f60f3

Message:

amd64: create identity mapping of the first 8 GB of physical memory (instead of just 4 GB) during the bootstrap process
remove the crude on-demand identity mapping creation which could lead to livelocks (unmapping the page pointing to 0 MB physical while trying to map the page pointing to 4096 MB physical)

(currently the implementation is in no way closer to the ideal solution of ticket #3, but at least it allows to debug non-trivial cases of physical memory sizes > 4 GB during the approach to solving #3)

File:

• kernel/arch/amd64/src/interrupt.c (modified) (1 diff)

kernel/arch/amd64/src/interrupt.c

@@ -214 +214 @@
         exc_register(12, "ss_fault", true, (iroutine_t) ss_fault);
         exc_register(13, "gp_fault", true, (iroutine_t) gp_fault);
-        exc_register(14, "ident_mapper", true, (iroutine_t) ident_page_fault);
         
 #ifdef CONFIG_SMP