https://bugzilla.kernel.org/show_bug.cgi?id=76331 --- Comment #2 from Matt <mspeder@xxxxxxxxxxxxxxxxxxxxx> --- Hi Alex, # dmesg | grep ecap [ 0.057396] dmar: IOMMU 0: reg_base_addr fbfff000 ver 1:0 cap c9008010e60262 ecap f020fa [ 0.057403] dmar: IOMMU 1: reg_base_addr fbffe000 ver 1:0 cap c9078010ef0462 ecap f020fe [ 158.832381] vfio_ecap_init: 0000:00:1b.0 hiding ecap 0x5@0x130 Host RAM is 36G Guest RAM was 16G I just tried with Guest RAM 4G, it didn't make any difference. Here is the relevant extract of libvirt conf : <memory unit='KiB'>4194304</memory> <currentMemory unit='KiB'>4194304</currentMemory> <memtune> <hard_limit unit='KiB'>25165824</hard_limit> </memtune> # qemu-system-x86_64 --version QEMU emulator version 2.0.0, Copyright (c) 2003-2008 Fabrice Bellard If you need anything else don't hesitate ! Thanks, Matt -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html