search for: target_page_bit

...unsigned long addr = (paddr_index << MCACHE_BUCKET_SHIFT) + + ((unsigned long)buffer) - ((unsigned long)entry->vaddr_base); + if (access_len == 0) + access_len = TARGET_PAGE_SIZE; + xc_hvm_modified_memory(xc_handle, domid, + addr >> TARGET_PAGE_BITS, + ((addr + access_len + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS) + - (addr >> TARGET_PAGE_BITS)); + } + entry->lock--; if (entry->lock > 0 || pentry == NULL) return; @@ -265,7 +277,7 @@ uint8_t *qemu_map_cache(target_phys_addr_t p...

...exec-dm.c --- a/tools/ioemu/target-i386-dm/exec-dm.c Fri Jul 04 19:52:08 2008 +0100 +++ b/tools/ioemu/target-i386-dm/exec-dm.c Tue Jul 08 12:17:23 2008 +0100 @@ -573,8 +573,8 @@ #ifdef CONFIG_STUBDOM if (logdirty_bitmap != NULL) xc_hvm_modified_memory(xc_handle, domid, _addr >> TARGET_PAGE_BITS, - (_addr + _len + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS - - _addr >> TARGET_PAGE_BITS); + ((_addr + _len + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS) + - (_addr >> TARGET_PAGE_BITS)); #endif ma...

...xt; bitmap = atomic_rcu_read(&migration_bitmap_rcu)->bmap; - if (ram_bulk_stage && nr > base) { - next = nr + 1; - } else { - next = find_next_bit(bitmap, size, nr); - } - + next = find_next_bit(bitmap, size, nr); *ram_addr_abs = next << TARGET_PAGE_BITS; return (next - base) << TARGET_PAGE_BITS; } @@ -1415,6 +1412,9 @@ void free_xbzrle_decoded_buf(void) static void migration_bitmap_free(struct BitmapRcu *bmap) { g_free(bmap->bmap); + if (balloon_free_pages_support()) { + g_free(bmap->free_pages_bmap); + }...

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

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

Traditionally, MIPS use 4KB page size, but Loongson prefer 16KB page size in system emulator. So, let's define TARGET_PAGE_BITS_VARY and TARGET_PAGE_BITS_MIN to support variable page size. Cc: Jiaxun Yang <jiaxun.yang at flygoat.com> Signed-off-by: Huacai Chen <chenhc at lemote.com> --- target/mips/cpu-param.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/mips/cpu-param.h b/target/mips/cpu-p...

Hi all, this is the long awaited patch series to add xen device model support in qemu; the main author is Anthony Perard. Developing this series we tried to come up with the cleanest possible solution from the qemu point of view, limiting the amount of changes to common code as much as possible. The end result still requires a couple of hooks in piix_pci but overall the impact should be very

I'm sending a first draft of my proposed cpu hotplug driver for kvm/virtio The first patch is the kernel module, while the second, the userspace pci device. The host boots with the maximum cpus it should ever use, through the -smp parameter. Due to real machine constraints (which qemu copies), i386 does not allow for any addition of cpus after boot, so this is the most general way. I do

I'm sending a first draft of my proposed cpu hotplug driver for kvm/virtio The first patch is the kernel module, while the second, the userspace pci device. The host boots with the maximum cpus it should ever use, through the -smp parameter. Due to real machine constraints (which qemu copies), i386 does not allow for any addition of cpus after boot, so this is the most general way. I do

...que); + ram_addr_t pa; + + addr -= vdev->addr; + + switch (addr) { + case VIRTIO_PCI_GUEST_FEATURES: + if (vdev->set_features) + vdev->set_features(vdev, val); + vdev->features = val; + break; + case VIRTIO_PCI_QUEUE_PFN: + pa = (ram_addr_t)val << TARGET_PAGE_BITS; + vdev->vq[vdev->queue_sel].pfn = val; + if (pa == 0) { + vdev->vq[vdev->queue_sel].vring.desc = NULL; + vdev->vq[vdev->queue_sel].vring.avail = NULL; + vdev->vq[vdev->queue_sel].vring.used = NULL; + } else if (pa < (ram_size - TARGET_PAGE_...

...que); + ram_addr_t pa; + + addr -= vdev->addr; + + switch (addr) { + case VIRTIO_PCI_GUEST_FEATURES: + if (vdev->set_features) + vdev->set_features(vdev, val); + vdev->features = val; + break; + case VIRTIO_PCI_QUEUE_PFN: + pa = (ram_addr_t)val << TARGET_PAGE_BITS; + vdev->vq[vdev->queue_sel].pfn = val; + if (pa == 0) { + vdev->vq[vdev->queue_sel].vring.desc = NULL; + vdev->vq[vdev->queue_sel].vring.avail = NULL; + vdev->vq[vdev->queue_sel].vring.used = NULL; + } else if (pa < (ram_size - TARGET_PAGE_...