From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Janosch Frank <frankja@linux.vnet.ibm.com>
Cc: KVM <kvm@vger.kernel.org>, Cornelia Huck <cohuck@redhat.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
David Hildenbrand <david@redhat.com>,
linux-s390 <linux-s390@vger.kernel.org>,
Pierre Morel <pmorel@linux.ibm.com>,
Thomas Huth <thuth@redhat.com>
Subject: [PATCH 0/1] diag9c forwarding
Date: Mon, 18 Jan 2021 14:17:38 +0100 [thread overview]
Message-ID: <20210118131739.7272-1-borntraeger@de.ibm.com> (raw)
This patch will forward the yieldto hypercall (diag9c) if in the host
the target CPU is also not running. As we do not yet have performance
data (and recommendations) the default is turned off, but this can
be changed during runtime.
Pierre Morel (1):
s390:kvm: diag9c forwarding
arch/s390/include/asm/kvm_host.h | 1 +
arch/s390/include/asm/smp.h | 1 +
arch/s390/kernel/smp.c | 1 +
arch/s390/kvm/diag.c | 31 ++++++++++++++++++++++++++++---
arch/s390/kvm/kvm-s390.c | 6 ++++++
arch/s390/kvm/kvm-s390.h | 8 ++++++++
6 files changed, 45 insertions(+), 3 deletions(-)
--
2.28.0
next reply other threads:[~2021-01-18 13:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 13:17 Christian Borntraeger [this message]
2021-01-18 13:17 ` [PATCH 1/1] KVM: s390: diag9c forwarding Christian Borntraeger
2021-01-18 13:45 ` Janosch Frank
2021-01-18 13:57 ` Christian Borntraeger
2021-01-18 13:59 ` Christian Borntraeger
2021-01-18 14:56 ` Pierre Morel
2021-01-19 16:53 ` Cornelia Huck
2021-01-19 19:51 ` Pierre Morel
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