Yes, when Intel virtualization technology is activated in BIOS, VT-d is typically enabled automatically.
Yes, when Intel virtualization technology is activated in BIOS, VT-d is typically enabled automatically.
I verified that VT-d is indeed active. This method isn’t straightforward, but here’s why: enabling VT-d automatically turns on DMA remapping. Checking Linux’s DMA information with a command like `dmesg | grep DMAR` gave varied results, which is normal. If there were no errors or missing data, it would indicate VT-d wasn’t running or DMA remapping was disabled—something unlikely after 2010. You should see confirmation of IRQ remapping in the appropriate mode (like x2apic). Without those signals, both DMA remapping and VT-d are off. Luckily, they were active.
They took a slightly different approach previously. Are you sure you only needed assistance with this, or do you have questions about configuring PROXMOX for hardware pass-through?
I'm fine for now, thanks for your assistance! You asked about how much a virtual machine in a hypervisor would slow down performance compared to running the same software directly on hardware.
I’m unfamiliar with those tools, but based on what I know, heavy computing tasks on Windows inside a VM tend to lag significantly—especially with QEMU/KVM or even Linux. If possible, you might consider running your apps in an LXC container, which leverages the host kernel for better performance.