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readme: small stuff

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Ciro Santilli 六四事件 法轮功
2020-07-02 01:00:00 +00:00
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@ -3677,6 +3677,11 @@ X86 was broken with pending patches: https://www.mail-archive.com/gem5-users@gem
panic: KVM: Failed to enter virtualized mode (hw reason: 0x80000021)
....
also mentioned at:
* https://stackoverflow.com/questions/62687463/gem5-kvm-doesnt-work-with-error-0x80000021
* https://gem5-users.gem5.narkive.com/8DBihuUx/running-fs-py-with-x86kvmcpu-failed
Bibliography:
* ARM thread: https://stackoverflow.com/questions/53523087/how-to-run-gem5-on-kvm-on-arm-with-multiple-cores
@ -23924,6 +23929,12 @@ Same but hacking `BR2_LINUX_KERNEL_LATEST_VERSION=y` and `BR2_PACKAGE_HOST_LINUX
Same but with: <<gem5-arm-linux-kernel-patches>> at v4.15: 73s, kernel size: 132M.
On Ubuntu 20.04 gem5 3ca404da175a66e0b958165ad75eb5f54cb5e772 this took 22 minutes 53 seconds:
....
./run -aa -eg --cpus 2 -N1 --tmux --quit-after-boot -- --cpu-type DerivO3CPU --caches
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===== gem5 arm HPI boot takes much longer than aarch64
TODO 62f6870e4e0b384c4bd2d514116247e81b241251 takes 33 minutes to finish at 62f6870e4e0b384c4bd2d514116247e81b241251: