From: Paolo Bonzini <pbonzini@redhat.com>
To: Alexander Graf <agraf@suse.de>,
Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
KVM <kvm@vger.kernel.org>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
Jens Freimann <jfrei@linux.vnet.ibm.com>
Subject: Re: [PATCH] KVM: s390: remove delayed reallocation of page tables for KVM
Date: Mon, 27 Apr 2015 15:52:16 +0200 [thread overview]
Message-ID: <553E3F10.4080104@redhat.com> (raw)
In-Reply-To: <553E3E3A.9010107@suse.de>
On 27/04/2015 15:48, Alexander Graf wrote:
> Well, you could also make it a personality flag for example, no? Then
> every new process below a certain one always gets 4k page tables until
> they drop the personality, at which point each child would only get 2k
> page tables again.
But if you have to make (say) bash get the personality, this means that
you need a full userspace recompile to run VMs.
Paolo
> I'm mostly concerned that people will end up mixing VMs and other
> workloads on the same LPAR, so I don't think there's a one-shoe-fits-all
> solution.
next prev parent reply other threads:[~2015-04-27 13:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-23 11:08 [PATCH] page table bugfix for s390/kvm Christian Borntraeger
2015-04-23 11:08 ` [PATCH] KVM: s390: remove delayed reallocation of page tables for KVM Christian Borntraeger
2015-04-23 11:37 ` Alexander Graf
2015-04-23 11:43 ` Christian Borntraeger
2015-04-23 12:01 ` Alexander Graf
2015-04-23 12:08 ` Christian Borntraeger
2015-04-27 13:49 ` Alexander Graf
2015-04-23 12:13 ` Martin Schwidefsky
2015-04-27 13:48 ` Alexander Graf
2015-04-27 13:52 ` Paolo Bonzini [this message]
2015-04-27 13:57 ` Martin Schwidefsky
2015-04-27 14:03 ` Alexander Graf
2015-04-27 14:08 ` Christian Borntraeger
2015-04-23 12:07 ` Paolo Bonzini
2015-04-23 13:57 ` Cole Robinson
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