Removed 22506-x86-iommu-dom0-estimate.patch

OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=95

22506-x86-iommu-dom0-estimate.patch

@@ -1,40 +0,0 @@
-# HG changeset patch
-# User Keir Fraser <keir@xen.org>
-# Date 1292320450 0
-# Node ID 618ba64260faf45e6ec391582099d7388f013e81
-# Parent  72326371ae8106b91da0ca6b0436dd2b6478b7a7
-x86/iommu: account for necessary allocations when calculating Dom0's initial allocation size
-References: bnc#658163
-
-As of c/s 21812:e382656e4dcc, IOMMU related allocations for Dom0
-happen only after it got all of its memory allocated, and hence the
-reserve (mainly for setting up its swiotlb) may get exhausted without
-accounting for the necessary allocations up front.
-
-While not precise, the estimate has been found to be within a couple
-of pages for the systems it got tested on.
-
-For the calculation to be reasonably correct, this depends on the
-patch titled "x86/iommu: don't map RAM holes above 4G" sent out
-yesterday.
-
-Signed-off-by: Jan Beulich <jbeulich@novell.com>
-
---- a/xen/arch/x86/domain_build.c
-+++ b/xen/arch/x86/domain_build.c
-@@ -188,6 +188,15 @@ static unsigned long __init compute_dom0
-     if ( is_pv_32on64_domain(d) )
-         avail -= opt_dom0_max_vcpus - 1;
- 
-+    /* Reserve memory for iommu_dom0_init() (rough estimate). */
-+    if ( iommu_enabled )
-+    {
-+        unsigned int s;
-+
-+        for ( s = 9; s < BITS_PER_LONG; s += 9 )
-+            avail -= max_pdx >> s;
-+    }
-+
-     /*
-      * If domain 0 allocation isn't specified, reserve 1/16th of available
-      * memory for things like DMA buffers. This reservation is clamped to