Changeset a1f60f3 in mainline for kernel/arch/amd64/src/context.S

Timestamp:

2010-06-27T23:04:20Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

64f6ef04

Parents:

33dac7d

Message:

move from "kernel" memory model to "large" memory model
get rid of the extra identity mapping of the physical memory at -2 GB

File:

• kernel/arch/amd64/src/context.S (modified) (2 diffs)

kernel/arch/amd64/src/context.S

@@ -41 +41 @@
 context_save_arch:
         movq (%rsp), %rdx     # the caller's return %eip
-
-        # In %edi is passed 1st argument
-        CONTEXT_SAVE_ARCH_CORE %rdi %rdx 
         
-        xorq %rax,%rax          # context_save returns 1
+        # 1st argument passed in %edi
+        CONTEXT_SAVE_ARCH_CORE %rdi %rdx
+        
+        xorq %rax, %rax       # context_save returns 1
         incq %rax
         ret
@@ -55 +55 @@
 # pointed by the 1st argument. Returns 0 in EAX.
 #
-context_restore_arch:   
-
+context_restore_arch:
         CONTEXT_RESTORE_ARCH_CORE %rdi %rdx
-
-        movq %rdx,(%rsp)
-
-        xorq %rax,%rax          # context_restore returns 0
+        
+        movq %rdx, (%rsp)
+        
+        xorq %rax, %rax       # context_restore returns 0
         ret