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base-linux: round up RM session size to page size

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Since RM sessions can be used as dataspaces and dataspace sizes are
supposed to have page granularity, RM session sizes should have page
granularity, too.

Fixes #972.
This commit is contained in:
Christian Prochaska 2013-11-12 19:55:05 +01:00 committed by Norman Feske
parent a2e405f9e9
commit ca9ae43e50
1 changed files with 6 additions and 0 deletions
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6
base-linux/src/base/env/platform_env.cc vendored
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@ -54,6 +54,9 @@ Platform_env_base::Rm_session_mmap::_dataspace_writable(Dataspace_capability ds)
** Platform_env::Local_parent **
********************************/
static inline size_t get_page_size_log2() { return 12; }
Session_capability
Platform_env::Local_parent::session(Service_name const &service_name,
Session_args const &args,
@ -69,6 +72,9 @@ Platform_env::Local_parent::session(Service_name const &service_name,
if (size == 0)
return Expanding_parent_client::session(service_name, args, affinity);
if (size != ~0UL)
size = align_addr(size, get_page_size_log2());
Rm_session_mmap *rm = new (env()->heap())
Rm_session_mmap(true, size);