Further improve gem5 documentation

This commit is contained in:
Ciro Santilli
2017-12-28 21:57:58 +00:00
parent ba99c525d8
commit 32c4ce0291
3 changed files with 32 additions and 23 deletions

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@@ -25,6 +25,22 @@ This backwards compatibility is just awesome, it makes getting and running the l
This also makes this repo the perfect setup to develop the Linux kernel.
## How to downgrade the Linux kernel?
The kernel is not forward compatible, however, so downgrading the Linux kernel requires downgrading the userland too to the latest Buildroot branch that supports it.
The default Linux kernel version is bumped in Buildroot with commit messages of type:
linux: bump default to version 4.9.6
So you can try:
git log --grep 'linux: bump default to version'
Those commits change `BR2_LINUX_KERNEL_LATEST_VERSION` in `/linux/Config.in`.
You should then look up if there is a branch that supports that kernel. Staying on branches is a good idea as they will get backports, in particular ones that fix the build as newer host versions come out.
## How to add new Buildroot options?
cd buildroot/output.x86_64~