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Features:

Browse source 
* When hotplugging PCI devices in a PV guest we can allocate Xen-SWIOTLB later.
  * Cleanup Xen SWIOTLB.
  * Support pages out grants from HVM domains in the backends.
  * Support wild cards in xen-pciback.hide=(BDF) arguments.
  * Update grant status updates with upstream hypervisor.
  * Boot PV guests with more than 128GB.
  * Cleanup Xen MMU code/add comments.
  * Obtain XENVERS using a preferred method.
  * Lay out generic changes to support Xen ARM.
  * Allow privcmd ioctl for HVM (used to do only PV).
  * Do v2 of mmap_batch for privcmd ioctls.
  * If hypervisor saves the LED keyboard light - we will now instruct the kernel
    about its state.
 Fixes:
  * More fixes to Xen PCI backend for various calls/FLR/etc.
  * With more than 4GB in a 64-bit PV guest disable native SWIOTLB.
  * Fix up smatch warnings.
  * Fix up various return values in privmcmd and mm.
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Merge tag 'stable/for-linus-3.7-x86-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen update from Konrad Rzeszutek Wilk:
 "Features:
   - When hotplugging PCI devices in a PV guest we can allocate
     Xen-SWIOTLB later.
   - Cleanup Xen SWIOTLB.
   - Support pages out grants from HVM domains in the backends.
   - Support wild cards in xen-pciback.hide=(BDF) arguments.
   - Update grant status updates with upstream hypervisor.
   - Boot PV guests with more than 128GB.
   - Cleanup Xen MMU code/add comments.
   - Obtain XENVERS using a preferred method.
   - Lay out generic changes to support Xen ARM.
   - Allow privcmd ioctl for HVM (used to do only PV).
   - Do v2 of mmap_batch for privcmd ioctls.
   - If hypervisor saves the LED keyboard light - we will now instruct
     the kernel about its state.
  Fixes:
   - More fixes to Xen PCI backend for various calls/FLR/etc.
   - With more than 4GB in a 64-bit PV guest disable native SWIOTLB.
   - Fix up smatch warnings.
   - Fix up various return values in privmcmd and mm."

* tag 'stable/for-linus-3.7-x86-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: (48 commits)
  xen/pciback: Restore the PCI config space after an FLR.
  xen-pciback: properly clean up after calling pcistub_device_find()
  xen/vga: add the xen EFI video mode support
  xen/x86: retrieve keyboard shift status flags from hypervisor.
  xen/gndev: Xen backend support for paged out grant targets V4.
  xen-pciback: support wild cards in slot specifications
  xen/swiotlb: Fix compile warnings when using plain integer instead of NULL pointer.
  xen/swiotlb: Remove functions not needed anymore.
  xen/pcifront: Use Xen-SWIOTLB when initting if required.
  xen/swiotlb: For early initialization, return zero on success.
  xen/swiotlb: Use the swiotlb_late_init_with_tbl to init Xen-SWIOTLB late when PV PCI is used.
  xen/swiotlb: Move the error strings to its own function.
  xen/swiotlb: Move the nr_tbl determination in its own function.
  xen/arm: compile and run xenbus
  xen: resynchronise grant table status codes with upstream
  xen/privcmd: return -EFAULT on error
  xen/privcmd: Fix mmap batch ioctl error status copy back.
  xen/privcmd: add PRIVCMD_MMAPBATCH_V2 ioctl
  xen/mm: return more precise error from xen_remap_domain_range()
  xen/mmu: If the revector fails, don't attempt to revector anything else.
  ...
This commit is contained in:
Linus Torvalds 2012-10-02 22:09:10 -07:00
commit 56d92aa5cf
40 changed files with 916 additions and 249 deletions
Download patch file Download diff file Expand all files Collapse all files

11
drivers/net/xen-netback/netback.c
View file

@ -635,9 +635,7 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
return;
BUG_ON(npo.copy_prod > ARRAY_SIZE(netbk->grant_copy_op));
ret = HYPERVISOR_grant_table_op(GNTTABOP_copy, &netbk->grant_copy_op,
npo.copy_prod);
BUG_ON(ret != 0);
gnttab_batch_copy(netbk->grant_copy_op, npo.copy_prod);
while ((skb = __skb_dequeue(&rxq)) != NULL) {
sco = (struct skb_cb_overlay *)skb->cb;
@ -1460,18 +1458,15 @@ static void xen_netbk_tx_submit(struct xen_netbk *netbk)
static void xen_netbk_tx_action(struct xen_netbk *netbk)
{
unsigned nr_gops;
int ret;
nr_gops = xen_netbk_tx_build_gops(netbk);
if (nr_gops == 0)
return;
ret = HYPERVISOR_grant_table_op(GNTTABOP_copy,
netbk->tx_copy_ops, nr_gops);
BUG_ON(ret);
gnttab_batch_copy(netbk->tx_copy_ops, nr_gops);
xen_netbk_tx_submit(netbk);
}
static void xen_netbk_idx_release(struct xen_netbk *netbk, u16 pending_idx)