diff options
| author | Huang Ying <ying.huang@intel.com> | 2011-12-08 11:25:49 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2012-01-17 03:54:44 -0500 |
| commit | b54ac6d2a25084667da781c7ca2cebef52a2bcdd (patch) | |
| tree | b4dbaa790dcecff6b5b0772846d43b360f6389d7 /Documentation/security | |
| parent | b4e008dc53a31cb4bf6a12d9dbaf1d5c6070a838 (diff) | |
ACPI, Record ACPI NVS regions
Some firmware will access memory in ACPI NVS region via APEI. That
is, instructions in APEI ERST/EINJ table will read/write ACPI NVS
region. The original resource conflict checking in APEI code will
check memory/ioport accessed by APEI via general resource management
mechanism. But ACPI NVS region is marked as busy already, so that the
false resource conflict will prevent APEI ERST/EINJ to work.
To fix this, this patch record ACPI NVS regions, so that we can avoid
request resources for memory region inside it.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/security')
0 files changed, 0 insertions, 0 deletions