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From: Jan Beulich <jbeulich@suse.com>
To: Roger Pau Monne <roger.pau@citrix.com>
Cc: xen-devel@lists.xenproject.org, Paul Durrant <paul@xen.org>,
	Wei Liu <wl@xen.org>, Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [Xen-devel] [PATCH v2 0/3] x86: improve assisted tlb flush and use it in guest mode
Date: Fri, 10 Jan 2020 17:08:16 +0100	[thread overview]
Message-ID: <43caf284-1725-19b9-94a6-a2545ff5f21e@suse.com> (raw)
In-Reply-To: <20200110160404.15573-1-roger.pau@citrix.com>

On 10.01.2020 17:04, Roger Pau Monne wrote:
> Patch #2 is likely the most controversial one, as it changes the
> implementation of assisted TLB flushes. I have to admit I haven't been
> able to figure out why HVM guest context flushes issued a
> flush_tlb_mask, and the commit introducing such behavior doesn't contain
> a helpful commit message.

A shadow mode thing, maybe?

Jan

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  parent reply	other threads:[~2020-01-10 16:08 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-10 16:04 Roger Pau Monne
2020-01-10 16:04 ` [Xen-devel] [PATCH v2 1/3] x86/hvm: allow ASID flush when v != current Roger Pau Monne
2020-01-10 16:04 ` [Xen-devel] [PATCH v2 2/3] x86/hvm: rework HVMOP_flush_tlbs Roger Pau Monne
2020-01-10 16:04 ` [Xen-devel] [PATCH v2 3/3] x86/tlb: use Xen L0 assisted TLB flush when available Roger Pau Monne
2020-01-10 16:08 ` Jan Beulich [this message]
2020-01-10 16:14   ` [Xen-devel] [PATCH v2 0/3] x86: improve assisted tlb flush and use it in guest mode Roger Pau Monné

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