From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Scott Wood <scottwood@freescale.com>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 1/2] powerpc/book3e-64: hv exceptions aren't MASKABLE
Date: Sat, 21 May 2011 08:30:46 +1000 [thread overview]
Message-ID: <1305930646.7481.196.camel@pasglop> (raw)
In-Reply-To: <20110520190030.GA7058@schlenkerla.am.freescale.net>
On Fri, 2011-05-20 at 14:00 -0500, Scott Wood wrote:
> In general we will not have EE soft-disabled or be napping when
> these exceptions happen, but still it is not correct.
>
> The guest doorbell exceptions can only be triggered with MSR[GS]=1,
> and thus for host kernel nesting purposes are base-level exceptions.
>
> Note that ehpriv and hypercall are triggerable from normal userspace.
> I tested that the process gets properly signalled in this case.
Please split the renaming of type->level from the actual functional
patch.
Cheers,
Ben.
prev parent reply other threads:[~2011-05-20 22:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-20 19:00 [PATCH 1/2] powerpc/book3e-64: hv exceptions aren't MASKABLE Scott Wood
2011-05-20 19:36 ` Kumar Gala
2011-05-20 19:39 ` Scott Wood
2011-05-20 22:30 ` Benjamin Herrenschmidt [this message]
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=1305930646.7481.196.camel@pasglop \
--to=benh@kernel.crashing.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=scottwood@freescale.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.