From: David Gibson <david@gibson.dropbear.id.au>
To: Thomas Huth <thuth@redhat.com>
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 0/4] hw/ppc/spapr: Add "Processor Register Hypervisor Resource Access" H-calls
Date: Fri, 12 Feb 2016 11:31:16 +1100 [thread overview]
Message-ID: <20160212003116.GB2732@voom.fritz.box> (raw)
In-Reply-To: <1455194841-4283-1-git-send-email-thuth@redhat.com>
[-- Attachment #1: Type: text/plain, Size: 1256 bytes --]
On Thu, Feb 11, 2016 at 01:47:17PM +0100, Thomas Huth wrote:
> While we were recently debugging a problem with the H_SET_DABR
> call [1], I noticed that some hypercalls from the chapter 14.5.4.3
> ("Processor Register Hypervisor Resource Access") from the LoPAPR
> spec [2] are still missing in QEMU.
> So here's are some patches that implement these hypercalls. Linux
> apparently does not depend on these hypercalls yet (otherwise somebody
> would have noticed this earlier), but the hypercalls are rather simple,
> so I think the implementations are quite straight-forward and easy to
> read.
>
> v2:
> - Don't use set_spr() and set cpu->env.spr[] directly instead
> - Completely reworked the H_PAGE_INIT patch to map the source
> and target pages for higher speed, and to be able to flush now
> the caches if requested.
I've merged 1-3 into ppc-for-2.6. My only concern with those is
whether we need to be setting some extra flags in the ibm,hypertas
property now that they are implemented.
I still have some comments on 4/4.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
next prev parent reply other threads:[~2016-02-12 0:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-11 12:47 [Qemu-devel] [PATCH v2 0/4] hw/ppc/spapr: Add "Processor Register Hypervisor Resource Access" H-calls Thomas Huth
2016-02-11 12:47 ` [Qemu-devel] [PATCH v2 1/4] hw/ppc/spapr: Add h_set_sprg0 hypercall Thomas Huth
2016-02-11 12:47 ` [Qemu-devel] [PATCH v2 2/4] hw/ppc/spapr: Implement h_set_dabr Thomas Huth
2016-02-11 12:47 ` [Qemu-devel] [PATCH v2 3/4] hw/ppc/spapr: Implement the h_set_xdabr hypercall Thomas Huth
2016-02-11 12:47 ` [Qemu-devel] [PATCH v2 4/4] hw/ppc/spapr: Implement the h_page_init hypercall Thomas Huth
2016-02-12 0:43 ` David Gibson
2016-02-12 0:31 ` David Gibson [this message]
2016-02-15 10:37 ` [Qemu-devel] [PATCH v2 0/4] hw/ppc/spapr: Add "Processor Register Hypervisor Resource Access" H-calls Thomas Huth
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=20160212003116.GB2732@voom.fritz.box \
--to=david@gibson.dropbear.id.au \
--cc=qemu-devel@nongnu.org \
--cc=qemu-ppc@nongnu.org \
--cc=thuth@redhat.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 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).