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don't map syscall pages into process space

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Request pages, response pages, and a doorbell page are mapped into
process space to enable user processes to delegate system calls
directly to mcctrl/mcexec.

This commit removes these mappings for the following reasons.
- These mappings cause a memory leak in current fork() implementation.
- These mappings are not used.
- These mappings do not function properly.
  And the fix which corrects function of these mappings is not easy.
This commit is contained in:
NAKAMURA Gou
2014-10-08 20:05:38 +09:00
parent 6415559a81
commit aa05f00e7e
2 changed files with 2 additions and 31 deletions
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3
kernel/include/syscall.h
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@@ -22,8 +22,7 @@
#define RESPONSE_PAGE_COUNT 16
#define DOORBELL_PAGE_COUNT 1
#define ARGENV_PAGE_COUNT 8
#define SCD_RESERVED_COUNT \
(REQUEST_PAGE_COUNT + RESPONSE_PAGE_COUNT + DOORBELL_PAGE_COUNT + ARGENV_PAGE_COUNT)
#define SCD_RESERVED_COUNT ARGENV_PAGE_COUNT
#define SCD_MSG_PREPARE_PROCESS 0x1
#define SCD_MSG_PREPARE_PROCESS_ACKED 0x2