QEMU

  1. Bug #1869006
  2. Comment #16

Comment 16 for bug 1869006

Revision history for this message
Alex Williamson (alex-l-williamson) wrote :

You'd need to create a 160KB VM in order to stay below the required direct map memory regions imposed by the system firmware (e8000 - c0000). Non-upstream bypasses of those restrictions are clearly not supported. You can find more details regarding the RMRR restriction here:
https://access.redhat.com/sites/default/files/attachments/rmrr-wp1.pdf

QEMU currently has no support for creating a VM memory map based on the restrictions of the host platform IOMMU requirements.