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| author | Igor Mammedov <imammedo@redhat.com> | 2020-09-23 05:46:41 -0400 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-09-29 02:15:24 -0400 |
| commit | c5be7517d658ae787de6d0ccc8e93db01fdf60a1 (patch) | |
| tree | c6ee2833973a11a6ae1868407fb25b2a73569f59 /include/standard-headers/linux/input-event-codes.h | |
| parent | 00dc02d284eab0890936ec47c0b7baba5e3b4e37 (diff) | |
| download | focaccia-qemu-c5be7517d658ae787de6d0ccc8e93db01fdf60a1.tar.gz focaccia-qemu-c5be7517d658ae787de6d0ccc8e93db01fdf60a1.zip | |
x86: cpuhp: prevent guest crash on CPU hotplug when broadcast SMI is in use
There were reports of guest crash on CPU hotplug, when using q35 machine type and OVMF with SMM, due to hotplugged CPU trying to process SMI at default SMI handler location without it being relocated by firmware first. Fix it by refusing hotplug if firmware hasn't negotiated CPU hotplug with SMI support while SMI broadcast is in use. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20200923094650.1301166-3-imammedo@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/standard-headers/linux/input-event-codes.h')
0 files changed, 0 insertions, 0 deletions