search for: mem_layout

Displaying 7 results from an estimated 7 matches for "mem_layout".

2016 Mar 03
2
[RFC qemu 2/4] virtio-balloon: Add a new feature to balloon device
...s); + VirtQueueElement *elem = s->free_pages_vq_elem; + int len; + + if (!balloon_free_pages_supported(s)) { + return -1; + } + + if (s->req_status == NOT_STARTED) { + s->free_pages_bitmap = free_pages_bitmap; + s->req_status = STARTED; + s->mem_layout.low_mem = pc_get_lowmem(PC_MACHINE(current_machine)); + if (!elem->in_num) { + elem = virtqueue_pop(s->fvq, sizeof(VirtQueueElement)); + if (!elem) { + return 0; + } + s->free_pages_vq_elem = elem; + } + len =...
2016 Mar 03
0
[RFC qemu 2/4] virtio-balloon: Add a new feature to balloon device
..._vq_elem; > + int len; > + > + if (!balloon_free_pages_supported(s)) { > + return -1; > + } > + > + if (s->req_status == NOT_STARTED) { > + s->free_pages_bitmap = free_pages_bitmap; > + s->req_status = STARTED; > + s->mem_layout.low_mem = pc_get_lowmem(PC_MACHINE(current_machine)); > + if (!elem->in_num) { > + elem = virtqueue_pop(s->fvq, sizeof(VirtQueueElement)); > + if (!elem) { > + return 0; > + } > + s->free_pages_vq_elem = el...
2016 Mar 03
2
[RFC kernel 0/2]A PV solution for KVM live migration optimization
The current QEMU live migration implementation mark the all the guest's RAM pages as dirtied in the ram bulk stage, all these pages will be processed and that takes quit a lot of CPU cycles. >From guest's point of view, it doesn't care about the content in free pages. We can make use of this fact and skip processing the free pages in the ram bulk stage, it can save a lot CPU cycles
2016 Mar 03
2
[RFC kernel 0/2]A PV solution for KVM live migration optimization
The current QEMU live migration implementation mark the all the guest's RAM pages as dirtied in the ram bulk stage, all these pages will be processed and that takes quit a lot of CPU cycles. >From guest's point of view, it doesn't care about the content in free pages. We can make use of this fact and skip processing the free pages in the ram bulk stage, it can save a lot CPU cycles
2016 Mar 03
16
[RFC qemu 0/4] A PV solution for live migration optimization
The current QEMU live migration implementation mark the all the guest's RAM pages as dirtied in the ram bulk stage, all these pages will be processed and that takes quit a lot of CPU cycles. >From guest's point of view, it doesn't care about the content in free pages. We can make use of this fact and skip processing the free pages in the ram bulk stage, it can save a lot CPU cycles
2016 Mar 03
16
[RFC qemu 0/4] A PV solution for live migration optimization
The current QEMU live migration implementation mark the all the guest's RAM pages as dirtied in the ram bulk stage, all these pages will be processed and that takes quit a lot of CPU cycles. >From guest's point of view, it doesn't care about the content in free pages. We can make use of this fact and skip processing the free pages in the ram bulk stage, it can save a lot CPU cycles
2016 Mar 03
0
[RFC qemu 2/4] virtio-balloon: Add a new feature to balloon device
..._vq_elem; > + int len; > + > + if (!balloon_free_pages_supported(s)) { > + return -1; > + } > + > + if (s->req_status == NOT_STARTED) { > + s->free_pages_bitmap = free_pages_bitmap; > + s->req_status = STARTED; > + s->mem_layout.low_mem = pc_get_lowmem(PC_MACHINE(current_machine)); Please don't leak pc-specific information into generic code.