diff options
| author | Ashok Raj <[email protected]> | 2022-11-16 19:59:29 -0800 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2022-11-19 10:39:08 +0100 |
| commit | 8382fee3bb86526bde1bfb1a06834f056140e0dd (patch) | |
| tree | 9a73ff72df307108dd6245dc376139bae4421cdf /tools/perf/scripts/python/flamegraph.py | |
| parent | 28377e56ed22ecce60260eb8afdf0c9837b3505f (diff) | |
platform/x86/intel/ifs: Add metadata support
One of the existing reserved fields in the microcode header has been
allocated to indicate the size of metadata structures.
The location of metadata section within microcode header is as shown
below:
Microcode Blob Format
+----------------------+ Base
|Header Version |
+----------------------+
|Update revision |
+----------------------+
|Date DDMMYYYY |
+----------------------+
|Sig |
+----------------------+
|Checksum |
+----------------------+
|Loader Version |
+----------------------+
|Processor Flags |
+----------------------+
|Data Size |
+----------------------+
|Total Size |
+----------------------+
|Meta Size |
+----------------------+
|Reserved |
+----------------------+
|Reserved |
+----------------------+ Base+48
| |
| Microcode |
| Data |
| |
+----------------------+ Base+48+data_size-
| | meta_size
| Meta Data |
| structure(s) |
| |
+----------------------+ Base+48+data_size
| |
| Extended Signature |
| Table |
| |
+----------------------+ Base+total_size
Add an accessor function which will return a pointer to the start of a
specific meta_type being queried.
[ bp: Massage commit message. ]
Signed-off-by: Ashok Raj <[email protected]>
Signed-off-by: Jithu Joseph <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Tony Luck <[email protected]>
Reviewed-by: Sohil Mehta <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions