Date: Tue, 31 Mar 2015 00:57:25 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r280874 - stable/10/sys/x86/iommu Message-ID: <201503310057.t2V0vPql033580@svn.freebsd.org>
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Author: kib Date: Tue Mar 31 00:57:25 2015 New Revision: 280874 URL: https://svnweb.freebsd.org/changeset/base/280874 Log: MFC r280435: When mapping an allocated entry, use the entry size, instead of the requested size. If tag restrictions caused split entry, its size is less then requsted. Modified: stable/10/sys/x86/iommu/intel_gas.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/x86/iommu/intel_gas.c ============================================================================== --- stable/10/sys/x86/iommu/intel_gas.c Tue Mar 31 00:55:12 2015 (r280873) +++ stable/10/sys/x86/iommu/intel_gas.c Tue Mar 31 00:57:25 2015 (r280874) @@ -648,7 +648,7 @@ dmar_gas_map(struct dmar_ctx *ctx, const entry->flags |= eflags; DMAR_CTX_UNLOCK(ctx); - error = ctx_map_buf(ctx, entry->start, size, ma, + error = ctx_map_buf(ctx, entry->start, entry->end - entry->start, ma, ((eflags & DMAR_MAP_ENTRY_READ) != 0 ? DMAR_PTE_R : 0) | ((eflags & DMAR_MAP_ENTRY_WRITE) != 0 ? DMAR_PTE_W : 0) | ((eflags & DMAR_MAP_ENTRY_SNOOP) != 0 ? DMAR_PTE_SNP : 0) |
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