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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2020-01-02 08:18:19 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-01-07 14:05:58 +0100 |
| commit | cb8b892dcecf279004967daab7791deb921cbcbe (patch) | |
| tree | f2469df64ed9ecf9f0b6309017c5772a82e8b992 /drivers/leds | |
| parent | 33cd6e642d6a76c1d338ce25cba5fd79a5029011 (diff) | |
| download | linux-stable-cb8b892dcecf279004967daab7791deb921cbcbe.tar.gz linux-stable-cb8b892dcecf279004967daab7791deb921cbcbe.tar.bz2 linux-stable-cb8b892dcecf279004967daab7791deb921cbcbe.zip | |
iommu/vt-d: Make first level IOVA canonical
First-level translation restricts the input-address to a canonical
address (i.e., address bits 63:N have the same value as address
bit [N-1], where N is 48-bits with 4-level paging and 57-bits with
5-level paging). (section 3.6 in the spec)
This makes first level IOVA canonical by using IOVA with bit [N-1]
always cleared.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/leds')
0 files changed, 0 insertions, 0 deletions