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| author | Jeremy Kerr <jeremy.kerr@canonical.com> | 2012-10-11 21:19:11 +0800 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2012-10-30 10:39:24 +0000 |
| commit | f5f6a60ad52fc786c517303590f1efaea614c69b (patch) | |
| tree | bb8d8ed9304fea80c240273406385a4e04c2182f /security | |
| parent | 5ba6e2919b9e18a051e5bdd6c21f52ee4976513f (diff) | |
| download | blackbird-op-linux-f5f6a60ad52fc786c517303590f1efaea614c69b.tar.gz blackbird-op-linux-f5f6a60ad52fc786c517303590f1efaea614c69b.zip | |
efivarfs: Implement exclusive access for {get,set}_variable
Currently, efivarfs does not enforce exclusion over the get_variable and
set_variable operations. Section 7.1 of UEFI requires us to only allow a
single processor to enter {get,set}_variable services at once.
This change acquires the efivars->lock over calls to these operations
from the efivarfs paths.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions
