![]() ![]() TX Drop Counter Counts Twice for VXLAN Traffic. ![]() Cumulus Linux Derivation of MAC Address for a Bridge.Calculating the Limitation of a Linux Bridge in Traditional Mode.NVUE Fails to Apply Configuration After Upgrade.Use netconsole with syslog on Cumulus Linux Switches.RX Error Counters and Slow Throughput Performance.Understanding CPU Usage on Cumulus Linux.Configure and Use sFlow Visualization Tools.Monitor Interface Administrative State and Physical State on Cumulus Linux.Expose CPU and Memory Information via SNMP.Dell N3048EP-ON - Cumulus Linux Installation Fails.Configure NTP for On-premises Appliances.Unsigned Certificate Warning when Connecting to NetQ UI.NetQ Agent CPU Utilization on Cumulus Linux Switches.No Connectivity with Intel x710 NICs on Firmware 6.0.x.Transceiver and Cable Self-qualification with Cumulus Linux.Configure the interfaces File with Mako.Ansible Simple Playbook Example with an FRR Template.Back up Existing Ansible Configurations - NVUE.Back up Existing Ansible Configurations - NCLU.Gathering Ansible Facts on Cumulus Linux.hostname kernel nf_conntrack table full, dropping packet Error.Troubleshooting Traditional Mode Bridges - VLANs.Create an ACL to Block New TCP Sessions Using TCP Flags.Configure ERSPAN to a Cumulus Linux Switch.Using dtach for In-band apt-get Upgrades.Upgrades - Network Device and Linux Host Worldview Comparison.Licensing in Cumulus Linux 4.4 and Later.Hostname Configured in hostname File Is Superseded by the DHCP hostname Option.What's New and Different in Cumulus Linux 4.0.0.Default Open Ports in Cumulus Linux and NetQ.Default User Name and Password in Cumulus Linux.Beginners Guide to Getting Started with Cumulus Linux.NVIDIA User Experience (NVUE) Cheat Sheet.Accessing the Switch through the Console.Linux for Networking Quick Start Cheat Sheet.Add in that 1 or their two attacks is via SMT, I think ASi is probably pretty safe from this. I won't say this attack is impossible on Apple Silicon but as you say, it would be more difficult-probably much more difficult. That complexity isn't there in the M1 or any Arm RISC system. I was reading as much of the white paper as I could understand without doing further research and my conclusion is that even if the M1 is using a micro-op cache, the authors are using the x86 ISA complexity as a way of detecting micro-op cache hits and misses. This is also one of the main reasons M1 has such amazing single threaded performance since it isn’t limited by the decoder. The x86 ISA should die already. Micro-ops are fixed length and shouldn’t require much caching unlike Intel/AMD. The memory model of ARM makes these types of attacks more difficult. Since Apple's ARM SoC cores don't use SMT, it looks like they are safe from this. Someone with more knowledge of Arm CPU Architecture should chime in.Įdit: And apparently SMT (also known as hyper-threading) is involved. In general RISC CPUs have much simpler decoding so it is possible that micro-ops aren't cached at all or the cache structure is much simpler. The caching of micro-ops is the source of this vulnerability. I know that Apple's Arm CPUs use micro-ops but I don't know anything about if or how they are cached.
0 Comments
Leave a Reply. |