Re: [Qemu-devel] BIT_WORD(start >> TARGET_PAGE_BITS)

thank you so much Eric Sorry for too questions I certainly follow your guide thanks a lot On Fri, Jun 30, 2017 at 5:49 PM, Eric Blake <ebl...@redhat.com> wrote: > On 06/30/2017 08:02 AM, ali saeedi wrote: > > Hello > > what does the following code do? > > 'unsigned

[Qemu-devel] BIT_WORD(start >> TARGET_PAGE_BITS)

Hello what does the following code do? 'unsigned long page = BIT_WORD(start >> TARGET_PAGE_BITS)' ? thanks a lot

[Qemu-devel] Page Block word

Hello what is the difference between word, page and block in qemu? thanks a lot

[Qemu-devel] DIRTY_MEMORY_BLOCK_SIZE;

Hello what does 'DIRTY_MEMORY_BLOCK_SIZE' mean? is it the number of words in a block? or number of pages in a block? or number of bytes in a block? thanks a lot

[Qemu-devel] Fwd: migration_bitmap_sync()

-- Forwarded message -- From: ali saeedi <ali.saeed...@gmail.com> Date: Sat, Jun 24, 2017 at 2:50 PM Subject: migration_bitmap_sync() To: qemu-devel@nongnu.org Hello What does ' migration_bitmap_sync()' function do? thanks a lot

[Qemu-devel] migration_bitmap_sync()

Hello What does ' migration_bitmap_sync()' function do? thanks a lot

Re: [Qemu-devel] TARGET_PAGE_BITS

igned long end, page; end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS; page = start >> TARGET_PAGE_BITS; ... } thanks a lot On Fri, Jun 23, 2017 at 7:11 PM, Alex Bennée <alex.ben...@linaro.org> wrote: > > ali saeedi <ali.saeed...@gmail.c

[Qemu-devel] TARGET_PAGE_BITS

Hello What does TARGET_PAGE_BITS mean in qemu code? thanks a lot

[Qemu-devel] migration_bitmap_rcu

Hello Is 'migration_bitmap_rcu-> bmap' a bitmap of *all pages* in ram? thanks a lot

[Qemu-devel] NMI watchdog bug

Hello I run qemu on linux kernel 4.11.4 at ubuntu lts 16.04 but when booting guest i encouner this in qemu monitor ' nmi watchdog: bug: soft lockup - cpu#0 stuck for 23s! [swapper:0/1]' i follow this link 'http://wiki.qemu.org/Hosts/Linux' what is the problem thanks a lot

[Qemu-devel] global bitmap

Hello can i have a bitmap of all pages in the ram? in qemu code, it seems that we only can have bitmap of pages in a block and we have no global bitmap of pages. thanks a lot

Re: [Qemu-devel] Memory dirty event

t you can do it in KVM by using > page-track mechanism. > > > > On 05/25/2017 08:26 PM, ali saeedi wrote: > >> Hello >> How can i receive an event when a page or block is dirtied in qemu code? >> thanks a lot >> >>

[Qemu-devel] MemoryRegion and RamBlock

Hello all what does these concepts 'MemoryRegion' and 'RamBlock' mean? thanks a lot

[Qemu-devel] qemu, kvm and qemu-kvm

Hello what are the difference between kvm, qemu and kvm-qemu? thanks a lot

[Qemu-devel] page dirtying

Hello I want to have the order of dirty pages in an array and do prediction about the next page that will be dirtied . so it is important for me to achieve this order in qemu code. in other word i need understand as soon as a page dirties. what is your recommendations to have this order? I have

[Qemu-devel] Memory dirty event

Hello How can i receive an event when a page or block is dirtied in qemu code? thanks a lot

[Qemu-devel] bitmap

Hi does this code 'atomic_rcu_read(_bitmap_rcu)->bmap' return bitmap of dirty blocks or bitmap of pages? thanks a lot

[Qemu-devel] TARGET_PAGE_BITS

Hello What is TARGET_PAGE_BITS in ram.c? thanks a lot

[Qemu-devel] Offset

Hello what is the difference between offset is available in 'PageSearchStatus' struct and offset in 'RamBlock' struct in Ram.c File? thanks a lot

[Qemu-devel] Precopy VM Live Migration

Hello I have understood from code that In Precopy, there is no Priority for sending dirty pages and qemu sends a page as soon as it is found in a block(by linear searching in blocks). in other word, qemu does not consider to pages that dirties more than others until sends them later than other

[Qemu-devel] get_queued_page

Hello Is "get_queued_page" function (which is called in line 1383 of ram.c) only used in postcopy mode and has no usage in precopy mode? thanks a lot

[Qemu-devel] old_vm_running boolean variable

Hello What is the role of "old_vm_running" variable in migration_thread? thanks a lot

[Qemu-devel] order of dirtying pages in vm live migration iterations

Hi Is it possible to have the order of dirtying pages in every iteration of vm live migration? thanks a lot

[Qemu-devel] qemu_savevm_state_begin

Hi what is the difference between functions "qemu_savevm_state_begin" and "qemu_savevm_state_header" in migration_thread? thanks a lot

[Qemu-devel] vmstate_save_state

what does "vmstate_save_state(f, _configuration, _state, 0)" function call do in "qemu_savevm_state_header" function in savevm.c at line 968 ? why has "savevm_state" been passed to this function? thanks a lot

[Qemu-devel] MigrationParams

Hi what are 'blk' and 'shared' boolean variables in MigrationParams structure in migration.h? thanks a lot

[Qemu-devel] QEMU_VM_SECTION START/END/PART/FULL

Hi What are "QEMU_VM_SECTION START/END/PART/FULL" in savevm.c ? please explain them to me. thanks a lot.

[Qemu-devel] bytes xfer

Hi what does 'bytes_xfer' and 'xfer_limit' mean? I am new in qemu. thanks a lot

[Qemu-devel] qemu_savevm_state_header(s->to_dst_file)

Hi does 'qemu_savevm_state_header(s->to_dst_file)' function in migration.c only stores header in qemu file and does not send it to destination? if it sends to destination which function does that? thanks alot

[Qemu-devel] sleeping in vm live migration code

Hi why we have below code in vm live migration? * g_usleep((initial_time + BUFFER_DELAY - current_time)*1000);* thanks a lot

[Qemu-devel] help for code

Hi I am new in qemu vm live migration. why we have this condition "current_time >= initial_time + BUFFER_DELAY" in qemu? thanks

[Qemu-devel] qemu_file_rate_limit

Hi what does 'qemu_file_rate_limit' function do? thanks

[Qemu-devel] bytes_xfer and xfer_limit

Hi What are the variables 'bytes_xfer' and 'xfer_limit' in qemu-file.c ? what does the function 'qemu_file_rate_limit' do? thanks

[Qemu-devel] Qemu VM Live Migration Code

Hello I am a student who is interested in vm live migration. I want to understand vm live migration code in qemu. so I tried to understand the code that is available in 'migration.c' but it is very difficult for me to understand (I have started from migration_thread function). I also has studied

[Qemu-devel] qemu_savevm_state_header()

Hi I am new in qemu vm live migration. what does 'qemu_savevm_state_header()' fuction do? thanks