| Message ID | 20210930143113.1502553-1-pasha.tatashin@soleen.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | arm64: MMU enabled kexec relocation | expand |
On Thu, 30 Sep 2021 14:30:58 +0000, Pasha Tatashin wrote: > Changelog: > v18: > - Addressed comments from Will Deacon > - Added Acks from Catalin Marinas > v17: > - Merged with 5.15-rc1 as requested by Catalin Marinas > - Added Tested-by: Pingfan Liu <piliu@redhat.com> > v16: > - Merged with 5.14-rc4 > v15: > - Changed trans_pgd_copy_el2_vectors() to use vector table that > only shared by kexec and hibernate. This way sync does not have > dangling branch that was recently introduced. (Reported by Marc > Zyngier) > - Renamed is_hyp_callable() to is_hyp_nvhe() as requested by Marc > Zyngier > - Clean-ups, comment fixes. > - Sync with upstream 368094df48e680fa51cedb68537408cfa64b788e > v14: > - Fixed a bug in "arm64: hyp-stub: Move elx_sync into the vectors" > that was noticed by Marc Zyngier > - Merged with upstream > v13: > - Fixed a hang on ThunderX2, thank you Pingfan Liu for reporting > the problem. In relocation function we need civac not ivac, we > need to clean data in addition to invalidating it. > Since I was using ThunderX2 machine I also measured the new > performance data on this large ARM64 server. The MMU improves > kexec relocation 190 times on this machine! (see below for > raw data). Saves 7.5s during CentOS kexec reboot. > v12: > - A major change compared to previous version. Instead of using > contiguous VA range a copy of linear map is now used to perform > copying of segments during relocation as it was agreed in the > discussion of version 11 of this project. > - In addition to using linear map, I also took several ideas from > James Morse to better organize the kexec relocation: > 1. skip relocation function entirely if that is not needed > 2. remove the PoC flushing function since it is not needed > anymore with MMU enabled. > v11: > - Fixed missing KEXEC_CORE dependency for trans_pgd.c > - Removed useless "if(rc) return rc" statement (thank you Tyler Hicks) > - Another 12 patches were accepted into maintainer's get. > Re-based patches against: > https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git > Branch: for-next/kexec > v10: > - Addressed a lot of comments form James Morse and from Marc Zyngier > - Added review-by's > - Synchronized with mainline > > [...] Applied to arm64 (for-next/kexec), thanks! [01/15] arm64: kernel: add helper for booted at EL2 and not VHE https://git.kernel.org/arm64/c/094a3684b9b6 [02/15] arm64: trans_pgd: hibernate: Add trans_pgd_copy_el2_vectors https://git.kernel.org/arm64/c/788bfdd97434 [03/15] arm64: hibernate: abstract ttrb0 setup function https://git.kernel.org/arm64/c/a347f601452f [04/15] arm64: kexec: flush image and lists during kexec load time https://git.kernel.org/arm64/c/0d8732e461d6 [05/15] arm64: kexec: skip relocation code for inplace kexec https://git.kernel.org/arm64/c/5bb6834fc290 [06/15] arm64: kexec: Use dcache ops macros instead of open-coding https://git.kernel.org/arm64/c/3036ec599332 [07/15] arm64: kexec: pass kimage as the only argument to relocation function https://git.kernel.org/arm64/c/878fdbd70486 [08/15] arm64: kexec: configure EL2 vectors for kexec https://git.kernel.org/arm64/c/08eae0ef618f [09/15] arm64: kexec: relocate in EL1 mode https://git.kernel.org/arm64/c/ba959fe96a1b [10/15] arm64: kexec: use ld script for relocation function https://git.kernel.org/arm64/c/19a046f07ce5 [11/15] arm64: kexec: install a copy of the linear-map https://git.kernel.org/arm64/c/3744b5280e67 [12/15] arm64: kexec: keep MMU enabled during kexec relocation https://git.kernel.org/arm64/c/efc2d0f20a9d [13/15] arm64: kexec: remove the pre-kexec PoC maintenance https://git.kernel.org/arm64/c/939f1b9564c6 [14/15] arm64: kexec: remove cpu-reset.h https://git.kernel.org/arm64/c/7a2512fa6493 [15/15] arm64: trans_pgd: remove trans_pgd_map_page() https://git.kernel.org/arm64/c/6091dd9eaf8e Cheers,