Also needed:
commit 35be0aded76b54a24dc8aa678a71bca22273e8d8
Author: Sean Christopherson <[email protected]>
Date: Thu Aug 23 17:56:47 2018
KVM: x86: SVM: Set EMULTYPE_NO_REEXECUTE for RSM emulation
Re-execution after an emulation decode failure is only intended to
handle a case where two or vCPUs race to write a shadowed page, i.e.
we should never re-execute an instruction as part of RSM emulation.
Add a new helper, kvm_emulate_instruction_from_buffer(), to support
emulating from a pre-defined buffer. This eliminates the last direct
call to x86_emulate_instruction() outside of kvm_mmu_page_fault(),
which means x86_emulate_instruction() can be unexported in a future
patch.
Fixes: 7607b7174405 ("KVM: SVM: install RSM intercept")
Cc: Brijesh Singh <[email protected]>
Signed-off-by: Sean Christopherson <[email protected]>
Cc: [email protected]
Signed-off-by: Radim Krčmář <[email protected]>
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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:
In Progress
Bug description:
[Impact]
* QEMU does not work in some AMD hardware when using host-passthrough as
cpu-mode (usually to allow nested KVM to work).
* QEMU does not start, hanging before the VM initialization.
[Test Case]
* to use Xenial qemu on top of a regular Xenial kernel -> doesn't work
(intermittent)
* 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]
* TODO
[Other Info]
* TODO
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