From: Sasha Levin <levinsasha928@gmail.com>
To: penberg@kernel.org, mingo@elte.hu, gorcunov@gmail.com
Cc: kvm@vger.kernel.org, Sasha Levin <levinsasha928@gmail.com>
Subject: [PATCH 1/2] kvm tools: prevent guest softlockup errors when pausing
Date: Thu, 2 Aug 2012 16:29:23 +0200 [thread overview]
Message-ID: <1343917764-28715-1-git-send-email-levinsasha928@gmail.com> (raw)
Use the new KVM_KVMCLOCK_CTRL ioctl to prevent guests from wrongfully
detecting lockups when in fact they were paused.
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
---
tools/kvm/builtin-run.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/builtin-run.c b/tools/kvm/builtin-run.c
index 21d5f34..a4d900b 100644
--- a/tools/kvm/builtin-run.c
+++ b/tools/kvm/builtin-run.c
@@ -524,6 +524,7 @@ static void handle_pause(int fd, u32 type, u32 len, u8 *msg)
kvm__continue();
} else if (type == KVM_IPC_PAUSE && !is_paused) {
kvm->vm_state = KVM_VMSTATE_PAUSED;
+ ioctl(kvm->vm_fd, KVM_KVMCLOCK_CTRL);
kvm__pause();
} else {
return;
--
1.7.8.6
next reply other threads:[~2012-08-02 14:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-02 14:29 Sasha Levin [this message]
2012-08-02 14:29 ` [PATCH 2/2] kvm tools: inject MSI directly without going through a GSI Sasha Levin
2012-08-04 9:14 ` Pekka Enberg
2012-08-04 9:30 ` Sasha Levin
2012-08-04 11:02 ` Pekka Enberg
2012-08-05 7:02 ` Sasha Levin
2012-08-05 9:08 ` Pekka Enberg
2012-08-05 9:14 ` Sasha Levin
2012-08-05 9:31 ` Pekka Enberg
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