Will do that, I'm sure there will be another iteration :). On 05/15/2014 11:51 AM, Christoffer Dall wrote: > On Thu, May 15, 2014 at 11:27:27AM -0700, Mario Smarduch wrote: >> This is v6 patcheset of live mgiration support for ARMv7. > > migration > > This is an extremely terse cover letter. It would have been nice with a > few sentences of which existing features this leverages, which support > was missing, what the preferred approach is, etc. Also, links to a wiki > page or just a few notes on how you did the testing below with which > user space tools etc. would also have been great. > >> >> - Tested on two 4-way A15 hardware, QEMU 2-way/4-way SMP guest upto 2GB >> - Various dirty data rates tested - 2GB/1s ... 2048 pgs/5ms >> - validated source/destination memory image integrity >> >> Changes since v1: >> - add unlock of VM mmu_lock to prevent a deadlock >> - moved migratiion active inside mmu_lock acquire for visibility in 2nd stage >> data abort handler >> - Added comments >> >> Changes since v2: >> - move initial VM write protect to memory region architecture prepare function >> (needed to make dirty logging function generic) >> - added stage2_mark_pte_ro() - to mark ptes ro - Marc's comment >> - optimized initial VM memory region write protect to do fewer table lookups - >> applied Marc's comment for walking dirty bitmap mask >> - added pud_addr_end() for stage2 tables, to make the walk 4-level >> - added kvm_flush_remote_tlbs() to use ARM TLB invalidation, made the generic >> one weak, Marc's comment to for generic dirty bitmap log function >> - optimized walking dirty bit map mask to skip upper tables - Marc's comment >> - deleted x86,arm kvm_vm_ioctl_get_dirty_log(), moved to kvm_main.c tagged >> the function weak - Marc's comment >> - changed Data Abort handler pte index handling - Marc's comment >> >> Changes since v3: >> - changed pte updates to reset write bit instead of setting default >> value for existing pte's - Steve's comment >> - In addition to PUD add 2nd stage >4GB range functions - Steves >> suggestion >> - Restructured initial memory slot write protect function for PGD, PUD, PMD >> table walking - Steves suggestion >> - Renamed variable types to resemble their use - Steves suggestions >> - Added couple pte helpers for 2nd stage tables - Steves suggestion >> - Updated unmap_range() that handles 2nd stage tables and identity mappings >> to handle 2nd stage addresses >4GB. Left ARMv8 unchanged. >> >> Changes since v4: >> - rebased to 3.15.0-rc1 - 'next' to pickup p*addr_end patches - Gavins comment >> - Update PUD address end function to support 4-level page table walk >> - Elimiated 5th patch of the series that fixed unmap_range(), since it was >> fixed by Marcs patches. >> >> Changes since v5: >> - Created seperate entry point for VMID TLB flush with no param - Christoffers >> comment >> - Update documentation for kvm_flush_remote_tlbs() - Christoffers comment >> - Simplified splitting of huge pages - inittial WP and 2nd stage DABT handler >> clear the huge page PMD, and use current code to fault in small pages. >> Removed kvm_split_pmd(). >> >> Mario Smarduch (4): >> add ARMv7 HYP API to flush VM TLBs without address param >> live migration support for initial write protect of VM >> live migration support for VM dirty log management >> add 2nd stage page fault handling during live migration >> >> arch/arm/include/asm/kvm_asm.h | 1 + >> arch/arm/include/asm/kvm_host.h | 11 ++ >> arch/arm/include/asm/kvm_mmu.h | 10 ++ >> arch/arm/kvm/arm.c | 8 +- >> arch/arm/kvm/interrupts.S | 11 ++ >> arch/arm/kvm/mmu.c | 292 ++++++++++++++++++++++++++++++++++++++- >> arch/x86/kvm/x86.c | 86 ------------ >> virt/kvm/kvm_main.c | 84 ++++++++++- >> 8 files changed, 409 insertions(+), 94 deletions(-) >> >> -- >> 1.7.9.5 >> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
