From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Tue, 29 Jul 2014 14:52:40 +0200 Subject: [PATCH 19/19] Documentation: ACPI for ARM64 In-Reply-To: References: <1406206825-15590-1-git-send-email-hanjun.guo@linaro.org> <20140729112824.GM2576@leverpostej> Message-ID: <351673188.FxXsM7MvdA@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tuesday 29 July 2014 14:37:38 Christoffer Dall wrote: > > For reference, Red Hat's current arguing point for ACPI in VMs is > hotplug of things like CPUs and memory for very large VMs, but I > haven't thought too carefully about this just yet, as I don't have a > 100+ core ARM 64-bit hardware lying around... I thought you could run guests with more virtual CPUs that you have physical CPUs on the host. Regarding CPU and memory hotplug, don't we already have PSCI and xen-balloon/virtio-balloon for that? Arnd