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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2024-08-30 19:20:21 +0300 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2024-08-30 19:20:21 +0300 |
| commit | 314bca3dc19a864c76153bfcd5a58be8c40000f9 (patch) | |
| tree | 9aba30284fce66e149a7472adea1cb4037e49463 /src/uapi/mem.c | |
| parent | 1a2e1fff7ce4b8fd8db46549d81e71e76b842da3 (diff) | |
| download | kmi-314bca3dc19a864c76153bfcd5a58be8c40000f9.tar.gz kmi-314bca3dc19a864c76153bfcd5a58be8c40000f9.zip | |
improvements to shared memory handling
+ Now each shared region is reference counter (technically each region
is refernce counted, private regions just have a count of 1).
Also, syscalls that touch the TLB get flushed, but should probably
look into where else this flushing might be needed.
Diffstat (limited to 'src/uapi/mem.c')
| -rw-r--r-- | src/uapi/mem.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/uapi/mem.c b/src/uapi/mem.c index f7237d7..5c18797 100644 --- a/src/uapi/mem.c +++ b/src/uapi/mem.c @@ -29,6 +29,7 @@ SYSCALL_DEFINE2(req_mem)(struct tcb *t, sys_arg_t size, sys_arg_t flags) if (ERR_CODE(start)) return_args1(t, start); + flush_tlb_all(); return_args2(t, OK, start); } @@ -52,6 +53,7 @@ SYSCALL_DEFINE3(req_fixmem)(struct tcb *t, sys_arg_t fixed, sys_arg_t size, if (ERR_CODE(start)) return_args1(t, start); + flush_tlb_all(); return_args2(t, OK, start); } @@ -75,6 +77,7 @@ SYSCALL_DEFINE1(free_mem)(struct tcb *t, sys_arg_t start) if (!(status = free_devmem(r, start))) return_args1(t, OK); + flush_tlb_all(); return_args1(t, status); } @@ -102,6 +105,7 @@ SYSCALL_DEFINE3(req_pmem)(struct tcb *t, sys_arg_t paddr, sys_arg_t size, if (ERR_CODE(start)) return_args1(t, start); + flush_tlb_all(); return_args2(t, OK, start); } @@ -131,6 +135,7 @@ SYSCALL_DEFINE2(req_page)(struct tcb *t, sys_arg_t size, sys_arg_t flags) if (ERR_CODE(start)) return_args1(t, start); + flush_tlb_all(); return_args4(t, OK, start, addr, asize); } @@ -154,6 +159,7 @@ SYSCALL_DEFINE2(req_sharedmem)(struct tcb *t, sys_arg_t size, sys_arg_t flags) if (ERR_CODE(start)) return_args1(t, start); + flush_tlb_all(); return_args2(t, OK, start); } @@ -184,5 +190,6 @@ SYSCALL_DEFINE3(ref_sharedmem)(struct tcb *t, sys_arg_t tid, sys_arg_t addr, if (ERR_CODE(start)) return_args1(t, start); + flush_tlb_all(); return_args2(t, OK, start); } |