From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Mahesh Jagannath Salgaonkar <mahesh@linux.vnet.ibm.com>
Cc: linuxppc-dev <linuxppc-dev@ozlabs.org>,
Paul Mackerras <paulus@samba.org>,
Anton Blanchard <anton@samba.org>,
Jeremy Kerr <jeremy.kerr@au1.ibm.com>
Subject: Re: [RFC PATCH 7/9] powerpc: Decode and save machine check event.
Date: Thu, 08 Aug 2013 23:33:42 +1000 [thread overview]
Message-ID: <1375968822.12551.48.camel@pasglop> (raw)
In-Reply-To: <52039AF7.9080807@linux.vnet.ibm.com>
On Thu, 2013-08-08 at 18:49 +0530, Mahesh Jagannath Salgaonkar wrote:
> > Secondly, we shouldn't call save_mce_event() if we're not in
> > hypervisor mode, since per-cpu variables are not in general
> accessible
> > in real mode when running under a hypervisor with a limited
> real-mode
> > area (RMA).
>
> Does that mean in real mode we can never be able to access per cpu
> variable? OR do I need to use some tweaks to access those?
Right, all you can access is stuff that was specifically allocated to be
in the RMA during boot, such as the PACA's.
Ben.
next prev parent reply other threads:[~2013-08-08 13:34 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-07 9:37 [RFC PATCH 0/9] Machine check handling in linux host Mahesh J Salgaonkar
2013-08-07 9:38 ` [RFC PATCH 1/9] powerpc: Split the common exception prolog logic into two section Mahesh J Salgaonkar
2013-08-08 4:10 ` Anshuman Khandual
2013-08-08 4:16 ` Benjamin Herrenschmidt
2013-08-07 9:38 ` [RFC PATCH 2/9] powerpc: handle machine check in Linux host Mahesh J Salgaonkar
2013-08-08 4:51 ` Paul Mackerras
2013-08-08 13:19 ` Mahesh Jagannath Salgaonkar
2013-08-08 13:33 ` Benjamin Herrenschmidt
2013-08-08 5:01 ` Anshuman Khandual
2013-08-07 9:38 ` [RFC PATCH 3/9] powerpc: Introduce a early machine check hook in cpu_spec Mahesh J Salgaonkar
2013-08-07 9:38 ` [RFC PATCH 4/9] powerpc: Add flush_tlb operation " Mahesh J Salgaonkar
2013-08-07 9:38 ` [RFC PATCH 5/9] powerpc: Flush SLB/TLBs if we get SLB/TLB machine check errors on power7 Mahesh J Salgaonkar
2013-08-08 4:58 ` Paul Mackerras
2013-08-07 9:39 ` [RFC PATCH 6/9] powerpc: Flush SLB/TLBs if we get SLB/TLB machine check errors on power8 Mahesh J Salgaonkar
2013-08-07 9:39 ` [RFC PATCH 7/9] powerpc: Decode and save machine check event Mahesh J Salgaonkar
2013-08-07 18:41 ` Scott Wood
2013-08-08 3:40 ` Mahesh Jagannath Salgaonkar
2013-08-08 5:14 ` Paul Mackerras
2013-08-08 13:19 ` Mahesh Jagannath Salgaonkar
2013-08-08 13:33 ` Benjamin Herrenschmidt [this message]
2013-08-07 9:39 ` [RFC PATCH 8/9] powerpc/powernv: Remove machine check handling in OPAL Mahesh J Salgaonkar
2013-08-07 9:39 ` [RFC PATCH 9/9] powerpc/powernv: Machine check exception handling Mahesh J Salgaonkar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1375968822.12551.48.camel@pasglop \
--to=benh@kernel.crashing.org \
--cc=anton@samba.org \
--cc=jeremy.kerr@au1.ibm.com \
--cc=linuxppc-dev@ozlabs.org \
--cc=mahesh@linux.vnet.ibm.com \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).