3 ms·
> Will Intel or AMD be able to fix this in microcode (by making it do the right thing if an external interrupt or NMI arrives)? What I want to know is: does th
by kogepathic 11y ago
> Will Intel or AMD be able to fix this in microcode (by making it do the right thing if an external interrupt or NMI arrives)?
What I want to know is: does this affect other hypervisors as well? If this is a bug related to the CPU, why haven't we heard from KVM, VMWare, etc about it?
I can't believe Xen basically just said "run PVM or get pwned"
- lsc 11y ago>I can't believe Xen basically just said "run PVM or get pwned" They didn't say that. scroll down to the "RESOLUTION" section. they include a patch that presumably solves the problem in HVM mode. They are just mentioning (as they should) that if you are running PV mode, this particular problem isn't a problem.
- joosters 11y agoWell, the worst case is a hardware lockup, so it's a DOS rather than a data-theft exploit. It's still a massive issue, but cloud companies like Amazon could stamp out customers who abuse it. OTOH, if malware starts to deliberately trigger this, everyone loses.
- yuhong 11y agoIf the hypervisor already intercepts #DB and #AC, they are not affected. MS has also released a fix: https://technet.microsoft.com/en-us/library/security/3108638 https://technet.microsoft.com/en-us/library/security/3108638 KVM: https://lkml.org/lkml/2015/11/10/214 https://lkml.org/lkml/2015/11/10/214