From: Wei Wang <wei.wang2@amd.com>
To: JBeulich@suse.com, xen-devel@lists.xen.org
Subject: [PATCH 2 of 3] amd iommu: Use next_level instead of recalculating it
Date: Mon, 13 Aug 2012 17:46:06 +0200 [thread overview]
Message-ID: <273471c6dedd1e66caab.1344872766@gran.amd.com> (raw)
In-Reply-To: <patchbomb.1344872764@gran.amd.com>
# HG changeset patch
# User Wei Wang <wei.wang2@amd.com>
# Date 1344872313 -7200
# Node ID 273471c6dedd1e66caab7e4eede72130e4e0c00f
# Parent b6ca536658ac712c5f03b5ffedce3bb61d55adaf
amd iommu: Use next_level instead of recalculating it.
Signed-off-by: Wei Wang <wei.wang2@amd.com>
diff -r b6ca536658ac -r 273471c6dedd xen/drivers/passthrough/amd/pci_amd_iommu.c
--- a/xen/drivers/passthrough/amd/pci_amd_iommu.c Mon Aug 13 17:38:30 2012 +0200
+++ b/xen/drivers/passthrough/amd/pci_amd_iommu.c Mon Aug 13 17:38:33 2012 +0200
@@ -408,8 +408,10 @@ static void deallocate_next_page_table(s
if ( (next_table_maddr != 0) && (next_level != 0)
&& iommu_is_pte_present((u32*)pde) )
{
+ /* We do not support skip level yet */
+ ASSERT( next_level == level - 1 );
deallocate_next_page_table(
- maddr_to_page(next_table_maddr), level - 1);
+ maddr_to_page(next_table_maddr), next_level);
}
}
}
next prev parent reply other threads:[~2012-08-13 15:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-13 15:46 [PATCH 0 of 3] amd iommu: Clean up iommu page table deallocation Wei Wang
2012-08-13 15:46 ` [PATCH 1 of 3] amd iommu: Add 2 helper functions: iommu_is_pte_present and iommu_next_level Wei Wang
2012-08-13 15:46 ` Wei Wang [this message]
2012-08-13 15:46 ` [PATCH 3 of 3] amd iommu: Remove unnecessary map/unmap for l1 page tables Wei Wang
2012-08-13 16:09 ` [PATCH 0 of 3] amd iommu: Clean up iommu page table deallocation Jan Beulich
2012-08-14 9:08 ` Wei Wang
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