From: Marcelo Tosatti <mtosatti@redhat.com>
To: Avi Kivity <avi@qumranet.com>, Anthony Liguori <aliguori@us.ibm.com>
Cc: kvm-devel@lists.sourceforge.net, Marcelo Tosatti <mtosatti@redhat.com>
Subject: [patch 3/4] QEMU/KVM: ignore SIG_IPI signals in userspace
Date: Sat, 05 Apr 2008 15:22:49 -0300 [thread overview]
Message-ID: <20080405182320.098125884@localhost.localdomain> (raw)
In-Reply-To: 20080405182246.761430758@localhost.localdomain
[-- Attachment #1: ignore-sipi --]
[-- Type: text/plain, Size: 1002 bytes --]
Otherwise a signal can be received in userspace and a vcpu goes back
to the kernel while it should stay still.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Index: kvm-userspace.io/qemu/qemu-kvm.c
===================================================================
--- kvm-userspace.io.orig/qemu/qemu-kvm.c
+++ kvm-userspace.io/qemu/qemu-kvm.c
@@ -350,7 +350,6 @@ static void *ap_main_loop(void *_env)
vcpu->env = env;
vcpu->env->thread_id = kvm_get_thread_id();
sigfillset(&signals);
- sigdelset(&signals, SIG_IPI);
sigprocmask(SIG_BLOCK, &signals, NULL);
kvm_create_vcpu(kvm_context, env->cpu_index);
kvm_qemu_init_env(env);
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next prev parent reply other threads:[~2008-04-05 18:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-05 18:22 [patch 0/4] fix SMP migration and savevm/loadvm Marcelo Tosatti
2008-04-05 18:22 ` [patch 1/4] QEMU/KVM: only use KVM apic registers if vm is running Marcelo Tosatti
2008-04-06 9:09 ` Avi Kivity
2008-04-05 18:22 ` [patch 2/4] QEMU/KVM: save and load mp state Marcelo Tosatti
2008-04-06 9:13 ` Avi Kivity
2008-04-05 18:22 ` Marcelo Tosatti [this message]
2008-04-06 9:15 ` [patch 3/4] QEMU/KVM: ignore SIG_IPI signals in userspace Avi Kivity
2008-04-07 20:26 ` Marcelo Tosatti
2008-04-08 1:17 ` Avi Kivity
2008-04-05 18:22 ` [patch 4/4] QEMU/KVM: dont read any bits from userspace APIC emulation if its done in-kernel Marcelo Tosatti
2008-04-06 9:18 ` Avi Kivity
2008-04-07 17:35 ` Marcelo Tosatti
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