From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Subject: [BUG] No irqchip created after commit 11bc4a13d1f4 ("kvm: convert "-machine kernel_irqchip" to an accelerator property")
Date: Fri, 20 Dec 2019 15:11:27 +0100 [thread overview]
Message-ID: <87eewz84ts.fsf@vitty.brq.redhat.com> (raw)
I apologize if this was already reported,
I just noticed that with the latest updates QEMU doesn't start with the
following configuration:
qemu-system-x86_64 -name guest=win10 -machine pc,accel=kvm -cpu host,hv_vpindex,hv_synic ...
qemu-system-x86_64: failed to turn on HyperV SynIC in KVM: Invalid argument
qemu-system-x86_64: kvm_init_vcpu failed: Invalid argument
If I add 'kernel-irqchip=split' or ',kernel-irqchip=on' it starts as
usual. I bisected this to the following commit:
commit 11bc4a13d1f4b07dafbd1dda4d4bf0fdd7ad65f2 (HEAD, refs/bisect/bad)
Author: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed Nov 13 10:56:53 2019 +0100
kvm: convert "-machine kernel_irqchip" to an accelerator property
so aparently we now default to 'kernel_irqchip=off'. Is this the desired
behavior?
--
Vitaly
next reply other threads:[~2019-12-20 14:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-20 14:11 Vitaly Kuznetsov [this message]
2019-12-20 15:39 ` [BUG] No irqchip created after commit 11bc4a13d1f4 ("kvm: convert "-machine kernel_irqchip" to an accelerator property") Paolo Bonzini
2019-12-28 9:32 ` [PATCH] accel/kvm: Make "kernel_irqchip" default on Xiaoyao Li
2019-12-28 10:02 ` Paolo Bonzini
2019-12-28 10:16 ` Xiaoyao Li
2019-12-28 10:57 ` Paolo Bonzini
2019-12-28 11:14 ` Xiaoyao Li
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