From: Carsten Otte <cotte@de.ibm.com>
To: Alexander Graf <agraf@suse.de>
Cc: Avi Kivity <avi@redhat.com>,
Marcelo Tossati <mtosatti@redhat.com>,
borntrae@linux.vnet.ibm.com, heicars2@linux.vnet.ibm.com,
mschwid2@linux.vnet.ibm.com, huckc@linux.vnet.ibm.com,
KVM <kvm@vger.kernel.org>,
Joachim von Buttlar <joachim_von_buttlar@de.ibm.com>,
Jens Freimann <jfrei@de.ibm.com>,
Constantin Werner <constantin.werner@de.ibm.com>,
Xiantao Zhang <xiantao.zhang@intel.com>
Subject: Re: [patch 04/12] [PATCH] kvm-s390-ucontrol: export SIE control block to user
Date: Fri, 09 Dec 2011 12:54:46 +0100 [thread overview]
Message-ID: <4EE1F706.6040506@de.ibm.com> (raw)
In-Reply-To: <614FD809-BDDC-488A-BBB9-3BD9E1A955F9@suse.de>
On 09.12.2011 12:37, Alexander Graf wrote:
>> +#define KVM_S390_SIE_PAGE_OFFSET 1
>
> Can we please make these a global number space? I don't want to have any user space code "accidently" call this mmap while it's trying to find out if it can map the PIO page. We already have a global number space for CAPs.
I consider a vma with holes in it pretty ugly, and we've got the
mechanism for userspace to correctly find out where to find what.
I do prefer a contiguous vma and the existing capabilities/queries.
Avi?
next prev parent reply other threads:[~2011-12-09 11:55 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-09 11:23 [patch 00/12] Ucontrol patches V3 Carsten Otte
2011-12-09 11:23 ` [patch 01/12] [PATCH] kvm-s390: add parameter for KVM_CREATE_VM Carsten Otte
2011-12-09 11:32 ` Alexander Graf
2011-12-09 11:50 ` Carsten Otte
2011-12-09 11:23 ` [patch 02/12] [PATCH] kvm-s390-ucontrol: per vcpu address spaces Carsten Otte
2011-12-09 11:23 ` [patch 03/12] [PATCH] kvm-s390-ucontrol: export page faults to user Carsten Otte
2011-12-09 11:23 ` [patch 04/12] [PATCH] kvm-s390-ucontrol: export SIE control block " Carsten Otte
2011-12-09 11:37 ` Alexander Graf
2011-12-09 11:54 ` Carsten Otte [this message]
2011-12-09 11:23 ` [patch 05/12] [PATCH] kvm-s390-ucontrol: disable in-kernel handling of SIE intercepts Carsten Otte
2011-12-09 11:23 ` [patch 06/12] [PATCH] kvm-s390-ucontrol: disable in-kernel irq stack Carsten Otte
2011-12-09 11:23 ` [patch 07/12] [PATCH] kvm-s390-ucontrol: interface to inject faults on a vcpu page table Carsten Otte
2011-12-09 11:23 ` [patch 08/12] [PATCH] kvm-s390-ucontrol: disable sca Carsten Otte
2011-12-09 11:23 ` [patch 09/12] [PATCH] kvm-s390: fix assumption for KVM_MAX_VCPUS Carsten Otte
2011-12-09 11:23 ` [patch 10/12] [PATCH] kvm-s390: storage key interface Carsten Otte
2011-12-09 12:04 ` Heiko Carstens
[not found] ` <OFEDB7DC8E.0D8BE463-ONC1257961.004633DF-C1257961.0046C1E7@de.ibm.com>
2011-12-09 13:37 ` Carsten Otte
2011-12-09 11:23 ` [patch 11/12] [PATCH] kvm-s390-ucontrol: announce capability for user controlled vms Carsten Otte
2011-12-09 11:23 ` [patch 12/12] [PATCH] kvm-s390: Fix return code for unknown ioctl numbers Carsten Otte
-- strict thread matches above, loose matches on Subject: below --
2011-12-14 12:23 [patch 00/12] Ucontrol patchset V6 Carsten Otte
2011-12-14 12:23 ` [patch 04/12] [PATCH] kvm-s390-ucontrol: export SIE control block to user Carsten Otte
2011-12-10 12:35 [patch 00/12] Ucontrol patchset V5 Carsten Otte
2011-12-10 12:35 ` [patch 04/12] [PATCH] kvm-s390-ucontrol: export SIE control block to user Carsten Otte
2011-12-09 12:49 [patch 00/12] Ucontrol patchset V4 Carsten Otte
2011-12-09 12:49 ` [patch 04/12] [PATCH] kvm-s390-ucontrol: export SIE control block to user Carsten Otte
2011-12-09 16:06 ` Alexander Graf
2011-12-10 11:25 ` Carsten Otte
2011-12-12 9:17 ` Avi Kivity
2011-12-12 9:45 ` Carsten Otte
2011-12-08 9:12 [patch 00/12] Ucontrol patchset V2 Carsten Otte
2011-12-08 9:12 ` [patch 04/12] [PATCH] kvm-s390-ucontrol: export SIE control block to user Carsten Otte
2011-12-01 12:57 [patch 00/12] User controlled virtual machines Carsten Otte
2011-12-01 12:57 ` [patch 04/12] [PATCH] kvm-s390-ucontrol: export SIE control block to user Carsten Otte
2011-12-01 13:25 ` Avi Kivity
2011-12-01 13:26 ` Avi Kivity
2011-12-01 13:59 ` Carsten Otte
2011-12-01 14:04 ` Avi Kivity
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=4EE1F706.6040506@de.ibm.com \
--to=cotte@de.ibm.com \
--cc=agraf@suse.de \
--cc=avi@redhat.com \
--cc=borntrae@linux.vnet.ibm.com \
--cc=constantin.werner@de.ibm.com \
--cc=heicars2@linux.vnet.ibm.com \
--cc=huckc@linux.vnet.ibm.com \
--cc=jfrei@de.ibm.com \
--cc=joachim_von_buttlar@de.ibm.com \
--cc=kvm@vger.kernel.org \
--cc=mschwid2@linux.vnet.ibm.com \
--cc=mtosatti@redhat.com \
--cc=xiantao.zhang@intel.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).