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Opened 10 years ago

Closed 7 years ago

#14 closed enhancement (wontfix)

Implement register-only ipc_wait_for

Reported by: Jakub Jermář Owned by: Jakub Jermář
Priority: minor Milestone:
Component: helenos/kernel/generic Version: mainline
Keywords: Cc:
Blocker for: Depends on:
See also:

Description

Despite the recent improvements in IPC, which can now pass as many as 4 payload arguments in registers, the reply goes from kernel to a userspace task always in memory. Theoretically, this could be improved for short replies by "soaking" the task into the kernel and populating the registers with the contents of the reply. Long replies will go through memory as usual.

Change History (3)

comment:1 Changed 10 years ago by Jiri Svoboda

Component: kernel/generic

comment:2 Changed 9 years ago by Jakub Jermář

Type: defectenhancement

comment:3 Changed 7 years ago by Jakub Jermář

Resolution: wontfix
Status: newclosed
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