diff options
author | Jiang, Yunhong <yunhong.jiang@intel.com> | 2017-03-08 23:37:03 +0000 |
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committer | Gerrit Code Review <gerrit@opnfv.org> | 2017-03-08 23:37:03 +0000 |
commit | c189ccac5702322ed843fe17057035b7222a59b6 (patch) | |
tree | 207c76d6bb1531a69f54c302bc2a73ae444dc4af /kernel/arch/x86/configs/README.opnfv | |
parent | 7ca470b86711f5f1abaa439de4ea0626f5849b0b (diff) | |
parent | 977317100f3b52caafb091ad5924e5dd81982433 (diff) |
Merge "Match the config from ubuntu"
Diffstat (limited to 'kernel/arch/x86/configs/README.opnfv')
-rw-r--r-- | kernel/arch/x86/configs/README.opnfv | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/kernel/arch/x86/configs/README.opnfv b/kernel/arch/x86/configs/README.opnfv new file mode 100644 index 000000000..752ff7ba5 --- /dev/null +++ b/kernel/arch/x86/configs/README.opnfv @@ -0,0 +1,19 @@ +As the ubuntu 16.04 is based on 4.4 kernel, thus we can try to refer the config +file for opnfv config file. + +The arch/x86/configs/config-4.4.0-62-generic is the config file used by ubuntu +kernel. Comparing with the opnfv kernel, the key differences are: + a. Real time config support like NOHZ_FULL, PREMEPMT kernel, different RCU +mechanism, + b. Disabling some feature that may impact real time result, like power +management functionality (C/P state). The hotplug support is disabled also +temply now. + c. Some ubuntu specific driver is not copied. + d. Some difference of build-in/module selection, because some config items +are selected automatically and we don't figure out the default value difference +yet. + e. Some virtualization support like Xen/HyperV is not enabled yet, to avoid +potential impact. + +In future, we should leave only item a/b and remove the differences caused by +item c/d/e. |