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[PATCH v2] docs: correct x86 MCE command line option info
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Fri, 5 Aug 2022 16:06:27 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Fri, 05 Aug 2022 14:06:38 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Not even the types were correct, let alone defaults being spelled out or
the purpose of the options actually mentioned in any way.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
---
v2: Wording change. Explain "silent".
--- a/docs/misc/xen-command-line.pandoc
+++ b/docs/misc/xen-command-line.pandoc
@@ -1691,10 +1691,23 @@ one pending bit to be allocated.
Defaults to 20 bits (to cover at most 1048576 interrupts).
### mce (x86)
-> `= <integer>`
+> `= <boolean>`
+
+> Default: `true`
+
+Allows to disable the use of Machine Check Exceptions. Note that doing
+so may result in silent shutdown of the system in case an event occurs
+which would have resulted in raising a Machine Check Exception. Silent
+here is as far as Xen is concerned; firmware may offer to retrieve some
+collected data.
### mce_fb (Intel)
-> `= <integer>`
+> `= <boolean>`
+
+> Default: `false`
+
+Force broadcasting of Machine Check Exceptions, suppressing the use of
+Local MCE functionality available in newer Intel hardware.
### mce_verbosity (x86)
> `= verbose`
|
