From: Alexander Graf <agraf@suse.de>
To: Paolo Bonzini <pbonzini@redhat.com>,
Eduardo Habkost <ehabkost@redhat.com>,
qemu-devel@nongnu.org
Cc: "Michael Mueller" <mimu@linux.vnet.ibm.com>,
kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
"Christian Borntraeger" <borntraeger@de.ibm.com>,
"Gabriel L. Somlo" <gsomlo@gmail.com>,
"Borislav Petkov" <bp@alien8.de>,
"Jason J. Herne" <jjherne@linux.vnet.ibm.com>,
"Andreas Färber" <afaerber@suse.de>
Subject: Re: [Qemu-devel] [RFC 0/2] GET_EMULATED_CPUID support with "allow-emulation" option
Date: Thu, 05 Jun 2014 18:58:17 +0200 [thread overview]
Message-ID: <5390A1A9.40602@suse.de> (raw)
In-Reply-To: <5390A06A.9070200@redhat.com>
On 05.06.14 18:52, Paolo Bonzini wrote:
> Il 05/06/2014 18:45, Alexander Graf ha scritto:
>>>>
>>>
>>> Only if you were using "-cpu somethingThatHasAVX", though, no?
>>
>> Yes. The same argument goes the other way around. I want to use AVX
>> emulation, do "allow-emulation" and suddenly I get MONITOR/MWAIT
>> emulation.
>
> What about:
>
> - letting "-cpu foo,+emulatedfeature" just work
>
> - adding emulated=yes that blindly enables all emulated features
>
> - making "-cpu ...,check" prints a warning for emulated features
> unless emulated=yes
So:
-cpu foo,+emulatedFeature just works
-cpu foo,+notEmulatedFeature still sets the CPUID bit for that feature
-cpu foo,check prints warnings for all cpuid bits not in the
"allowed" bitmap. It prints different warnings depending on whether the
bit is in "emulated" or not
Alex
next prev parent reply other threads:[~2014-06-05 16:58 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-05 16:12 [Qemu-devel] [RFC 0/2] GET_EMULATED_CPUID support with "allow-emulation" option Eduardo Habkost
2014-06-05 16:12 ` [Qemu-devel] [RFC 1/2] kvm: Implement kvm_arch_get_emulated_cpuid() Eduardo Habkost
2014-06-05 16:12 ` [Qemu-devel] [RFC 2/2] target-i386: Add "allow-emulation" X86CPU property Eduardo Habkost
2014-06-05 19:57 ` [Qemu-devel] [RFC 2/2 v2] target-i386: Add "x-allow-emulation" " Eduardo Habkost
2014-06-05 22:27 ` Alexander Graf
2014-06-05 16:24 ` [Qemu-devel] [RFC 0/2] GET_EMULATED_CPUID support with "allow-emulation" option Alexander Graf
2014-06-05 16:26 ` Paolo Bonzini
2014-06-05 16:40 ` Alexander Graf
2014-06-05 16:44 ` Paolo Bonzini
2014-06-05 16:45 ` Alexander Graf
2014-06-05 16:52 ` Paolo Bonzini
2014-06-05 16:54 ` Alexander Graf
2014-06-05 16:57 ` Paolo Bonzini
2014-06-05 17:19 ` Eduardo Habkost
2014-06-05 17:39 ` Paolo Bonzini
2014-06-05 18:02 ` Eduardo Habkost
2014-06-05 19:12 ` Eduardo Habkost
2014-06-05 19:24 ` Borislav Petkov
2014-06-05 19:45 ` Eric Blake
2014-06-05 19:52 ` Eduardo Habkost
2014-06-05 16:58 ` Alexander Graf [this message]
2014-06-05 17:48 ` Eduardo Habkost
2014-06-05 22:24 ` Alexander Graf
2014-06-06 1:21 ` Borislav Petkov
2014-06-06 2:37 ` Eduardo Habkost
2014-06-06 11:16 ` Alexander Graf
2014-06-06 18:38 ` Eduardo Habkost
2014-06-05 17:17 ` Eduardo Habkost
2014-06-05 17:38 ` Paolo Bonzini
2014-06-05 17:52 ` Eduardo Habkost
2014-06-05 17:34 ` Eduardo Habkost
2014-06-06 13:29 ` gleb
2014-06-05 18:11 ` Eduardo Habkost
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=5390A1A9.40602@suse.de \
--to=agraf@suse.de \
--cc=afaerber@suse.de \
--cc=borntraeger@de.ibm.com \
--cc=bp@alien8.de \
--cc=ehabkost@redhat.com \
--cc=gsomlo@gmail.com \
--cc=jjherne@linux.vnet.ibm.com \
--cc=kvm@vger.kernel.org \
--cc=mimu@linux.vnet.ibm.com \
--cc=mst@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.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).