It solves the problem and I'm sorry for taking so long to verify... Commit:
Author: Sean Christopherson <sean.j.christopher...@intel.com> Date: Thu Aug 29 14:06:58 2019 KVM: x86: SVM: Set EMULTYPE_NO_REEXECUTE for RSM emulation BugLink: https://bugs.launchpad.net/bugs/1834522 Indeed solves the problem. Thank you! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1834522 Title: Bionic QEMU with Bionic Kernel hangs in AMD FX-8350 with cpu-host as passthrough Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Committed Bug description: [Impact] * Nested AMD KVM guest does not work in AMD CPUs when using host-passthrough as cpu-mode. * QEMU does not start, hanging before the VM initialization. [Test Case] * Bionic KVM GUEST tries to use nested KVM in AMD CPU * to use the following XML file: https://paste.ubuntu.com/p/BSyFY7ksR5/ * to have AMD FX(tm)-8350 Eight-Core Processor CPU or similar * to use Xenial qemu on top of a HWE kernel -> works [Regression Potential] * KVM SVM could be affected but patch is from upstream, fixes the specific issue and has been tested by me in my currently developing workstation (heavy usage). [Other Info] * Patches have been sent to kernel team mailing list. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834522/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp