[MODERATED] Re: [patch V6 12/14] MDS basics 12

mark gross <[email protected]>
Newsgroups org.kernel.lore.historical-speck
Message-ID <[email protected]> 
On Fri, Mar 01, 2019 at 10:47:50PM +0100, speck for Thomas Gleixner wrote:
> Subject: [patch V6 12/14] x86/speculation/mds: Add mitigation mode VMWERV
> From: Thomas Gleixner <[email protected]>
> 
> In virtualized environments it can happen that the host has the microcode
> update which utilizes the VERW instruction to clear CPU buffers, but the
> hypervisor is not yet updated to expose the X86_FEATURE_MD_CLEAR CPUID bit
> to guests.
> 
> Introduce an internal mitigation mode VWWERV which enables the invocation
minor type-oh.                 s/VWWERV/VMWERV/

--mark
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.