From: Marcelo Tosatti <mtosatti@redhat.com>
To: Avi Kivity <avi@qumranet.com>
Cc: kvm-devel@lists.sourceforge.net, Marcelo Tosatti <mtosatti@redhat.com>
Subject: [patch 4/5] QEMU/KVM: ignore SIG_IPI signals in userspace
Date: Fri, 11 Apr 2008 13:24:44 -0300 [thread overview]
Message-ID: <20080411162949.188683843@localhost.localdomain> (raw)
In-Reply-To: 20080411162440.693057357@localhost.localdomain
[-- Attachment #1: ignore-sigipi --]
[-- Type: text/plain, Size: 997 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:[~2008-04-11 16:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-11 16:24 [patch 0/5] fix SMP migration and loadvm/savevm (V3) Marcelo Tosatti
2008-04-11 16:24 ` [patch 1/5] QEMU/KVM: properly copy the in-kernel apicbase value Marcelo Tosatti
2008-04-11 16:24 ` [patch 2/5] QEMU/KVM: Add libkvm interface to get/set the mpstate Marcelo Tosatti
2008-04-11 16:24 ` [patch 3/5] QEMU/KVM: save and load mp state Marcelo Tosatti
2008-04-11 16:24 ` Marcelo Tosatti [this message]
2008-04-11 16:24 ` [patch 5/5] KVM: add ioctls to save/store mpstate Marcelo Tosatti
2008-04-13 14:59 ` Avi Kivity
2008-04-13 15:01 ` [patch 0/5] fix SMP migration and loadvm/savevm (V3) Avi Kivity
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