Re: [virtio-dev] [RFC PATCH v2 1/5] iommu: Add virtio-iommu driver

On 17/11/17 18:52, Jean-Philippe Brucker wrote: [...] > +struct viommu_domain { > + struct iommu_domain domain; > + struct viommu_dev *viommu; > + struct mutexmutex; > + unsigned intid; > + > + spinlock_t

[virtio-dev] [PATCH v18 10/10] virtio-balloon: don't report free pages when page poisoning is enabled

The guest free pages should not be discarded by the live migration thread when page poisoning is enabled with PAGE_POISONING_NO_SANITY=n, because skipping the transfer of such poisoned free pages will trigger false positive when new pages are allocated and checked on the destination. This patch

[virtio-dev] [PATCH v18 02/10] radix tree test suite: remove ARRAY_SIZE to avoid redefinition

ARRAY_SIZE() has been defined in include/linux/kernel.h, and "make" complains a warning of redefinition of ARRAY_SIZE() in testing/radix/linux/kernel.h. So, remove ARRAY_SIZE() from there. Signed-off-by: Wei Wang Cc: Matthew Wilcox Cc: Andrew Morton

[virtio-dev] [PATCH v18 01/10] idr: add #include

The was removed from radix-tree.h by the following commit: f5bba9d11a256ad2a1c2f8e7fc6aabe6416b7890. Since that commit, tools/testing/radix-tree/ couldn't pass compilation due to: tools/testing/radix-tree/idr.c:17: undefined reference to WARN_ON_ONCE. This patch adds the bug.h header to idr.h to

[virtio-dev] [PATCH v18 00/10] Virtio-balloon Enhancement

This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the

[virtio-dev] [PATCH v18 05/10] xbitmap: add more operations

This patch adds support to find next 1 or 0 bit in a xbmitmap range and clear a range of bits. More possible optimizations to add in the future: 1) xb_set_bit_range: set a range of bits. 2) when searching a bit, if the bit is not found in the slot, move on to the next slot directly. 3) add tags

[virtio-dev] [PATCH v18 03/10] xbitmap: Introduce xbitmap

From: Matthew Wilcox The eXtensible Bitmap is a sparse bitmap representation which is efficient for set bits which tend to cluster. It supports up to 'unsigned long' worth of bits, and this commit adds the bare bones -- xb_set_bit(), xb_clear_bit() and xb_test_bit().

RE: [virtio-dev] [PATCH RFC] packed ring layout spec v5

> From: Michael S. Tsirkin [mailto:m...@redhat.com] > Sent: 28. november 2017 15:37 > > If the device always returns buffers in order, then couldn't the driver > > skip the > >step of reading the used.ring for read-only buffers (e.g. TX for net > >devices)? The > >used.idx tells how many