From: Jens Freimann <jfrei@linux.vnet.ibm.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>,
Alexander Graf <agraf@suse.de>,
Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: David Hildenbrand <dahi@linux.vnet.ibm.com>,
Jens Freimann <jfrei@linux.vnet.ibm.com>,
qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 4/5] s390x/kvm: execute "system reset" cpu resets on the vcpu thread
Date: Thu, 28 Aug 2014 13:58:51 +0200 [thread overview]
Message-ID: <1409227132-55354-5-git-send-email-jfrei@linux.vnet.ibm.com> (raw)
In-Reply-To: <1409227132-55354-1-git-send-email-jfrei@linux.vnet.ibm.com>
From: David Hildenbrand <dahi@linux.vnet.ibm.com>
Let's execute resets triggered by qemu system resets on the target vcpu thread.
This will avoid synchronize_rcu's in the kernel.
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
---
target-s390x/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index c3082b7..4633282 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -165,7 +165,7 @@ static void s390_cpu_machine_reset_cb(void *opaque)
{
S390CPU *cpu = opaque;
- cpu_reset(CPU(cpu));
+ run_on_cpu(CPU(cpu), s390_do_cpu_full_reset, CPU(cpu));
}
#endif
--
1.9.3
next prev parent reply other threads:[~2014-08-28 11:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-28 11:58 [Qemu-devel] [PATCH 0/5] s390x/kvm: avoid synchronize_rcu's in kernel Jens Freimann
2014-08-28 11:58 ` [Qemu-devel] [PATCH 1/5] kvm: run cpu state synchronization on target vcpu thread Jens Freimann
2014-08-28 11:58 ` [Qemu-devel] [PATCH 2/5] s390x/kvm: run guest triggered resets on the " Jens Freimann
2014-08-28 11:58 ` [Qemu-devel] [PATCH 3/5] s390x/kvm: execute sigp orders " Jens Freimann
2014-08-28 11:58 ` Jens Freimann [this message]
2014-08-28 11:58 ` [Qemu-devel] [PATCH 5/5] s390x/kvm: execute the first cpu reset on the " Jens Freimann
2014-08-28 12:58 ` [Qemu-devel] [PATCH 0/5] s390x/kvm: avoid synchronize_rcu's in kernel Christian Borntraeger
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=1409227132-55354-5-git-send-email-jfrei@linux.vnet.ibm.com \
--to=jfrei@linux.vnet.ibm.com \
--cc=agraf@suse.de \
--cc=borntraeger@de.ibm.com \
--cc=cornelia.huck@de.ibm.com \
--cc=dahi@linux.vnet.ibm.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).