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[Qemu-devel] icount mode
From: |
Wu, Wentong |
Subject: |
[Qemu-devel] icount mode |
Date: |
Mon, 24 Jun 2019 14:20:21 +0000 |
Hi all,
Recently I'm using Qemu TCG icount mode, from the code I found Qemu timers run
at 1GHz, and for ArmV7M example, there will be conversion factor from qemu
timer to SysTick frequency which will be calculated by NANOSECONDS_PER_SECOND /
SYSCLK_FRQ.
But the shift value also define the target cpu frequency(2^N ns /one
instruction), and both frequencies will be used together to calculate the guest
timer, so I think there is buggy because of the different frequency, can anyone
give some explanation for this? Thanks a lot!
Also can anyone give some hints about how to give the shift value when use
icount TCG mode?
Thanks
Wentong Wu
- [Qemu-devel] icount mode,
Wu, Wentong <=