[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] when to check external interrupt request ? or what is the t
From: |
wang sheng |
Subject: |
[Qemu-devel] when to check external interrupt request ? or what is the timing to check and arise external interrupt ? |
Date: |
Tue, 22 Feb 2011 12:47:19 +0800 |
I'm porting qemu to an new architecture. I come across some difficulty
that I can't define the timing that enable qemu's main-thread to be
interrupt and check external interrupt .
I understand the way that mips used to check external interrupt .
in qemu-system-mips , during do translation , if there is an
instruction that access CP0's Status register and Cause register, the
"target-mips/translate.c" will add a calling to function "
helper_interrupt_restart" in the end of the translation_block.
But in my architecture which use "load/st" instruction to access the
contr register in interrupt controller . Because I can't
distinguish the access for normal memory and access for interrupt
controller's register , I can't add "interrupt_restart" function
calling in the end of translation block.
How can I do to enable qemu have chance to check external interrupt ?
- [Qemu-devel] when to check external interrupt request ? or what is the timing to check and arise external interrupt ?,
wang sheng <=