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From: Marcelo Tosatti <mtosatti@redhat.com>
To: kvm@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	Sean Christopherson <seanjc@google.com>,
	Peter Xu <peterx@redhat.com>
Subject: [patch 0/4] VMX: configure posted interrupt descriptor when assigning device (v4)
Date: Tue, 11 May 2021 20:57:38 -0300	[thread overview]
Message-ID: <20210511235738.333950860@redhat.com> (raw)

Configuration of the posted interrupt descriptor is incorrect when devices
are hotplugged to the guest (and vcpus are halted).

See patch 4 for details.


v4: remove NULL assignments from kvm_x86_ops (Peter Xu)
    check for return value of ->start_assignment directly (Peter Xu)

v3: improved comments (Sean)
    use kvm_vcpu_wake_up (Sean)
    drop device_count from start_assignment function (Peter Xu)

v2: rather than using a potentially racy IPI (vs vcpu->cpu switches),
    kick the vcpus when assigning a device and let the blocked per-CPU
    list manipulation happen locally at ->pre_block and ->post_block
    (Sean Christopherson).

             reply	other threads:[~2021-05-12  0:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-11 23:57 Marcelo Tosatti [this message]
2021-05-11 23:57 ` [patch 1/4] KVM: x86: add start_assignment hook to kvm_x86_ops Marcelo Tosatti
2021-05-12 15:30   ` Peter Xu
2021-05-11 23:57 ` [patch 2/4] KVM: add arch specific vcpu_check_block callback Marcelo Tosatti
2021-05-11 23:57 ` [patch 3/4] KVM: x86: implement kvm_arch_vcpu_check_block callback Marcelo Tosatti
2021-05-11 23:57 ` [patch 4/4] KVM: VMX: update vcpu posted-interrupt descriptor when assigning device Marcelo Tosatti

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