APPLIED[Unstable]: [SRU][Bionic][Cosmic][PATCH 0/1] KVM: PPC: Book3S HV: Provide mode where all vCPUs on a core must be the same VM

Seth Forshee seth.forshee at canonical.com
Mon Oct 15 15:48:55 UTC 2018


On Thu, Oct 11, 2018 at 04:19:18PM -0400, Joseph Salisbury wrote:
> BugLink: https://bugs.launchpad.net/bugs/1792957
> 
> == SRU Justification ==
> This patch has been requested by IBM.  It provides a mode where all vCPUs 
> on a core must be the same VM.  This is intended for use in 
> security-conscious settings where users are concerned about possible 
> side-channel attacks between threads which could perhaps enable one VM 
> to attack another VM on the same core, or the host.
> 
> == Fix ==
> linux-next commit:
> aa2278644ae5 ("KVM: PPC: Book3S HV: Provide mode where all vCPUs on a core must be the same VM")
> 
> 
> == Regression Potential ==
> Low.  Changes limited to powerpc.
> 
> == Test Case ==
> A test kernel was built with this patch and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.

Applied to unstable/master, thanks!




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