hw/intc/arm_gicv3_its: Implement a minimalist reset
At the moment the ITS is not properly reset and this causes various bugs on save/restore. We implement a minimalist reset through individual register writes but for kernel versions before v4.15 this fails voiding the vITS cache. We cannot claim we have a comprehensive reset (hence the error message) but that's better than nothing. Signed-off-by: NEric Auger <eric.auger@redhat.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Message-id: 1511883692-11511-3-git-send-email-eric.auger@redhat.com Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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