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From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Forrest Yuan Yu <yuanyu@google.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH RFC 0/1] Hypercall UCALL for guest/userspace communication
Date: Fri, 1 May 2020 13:23:22 -0700	[thread overview]
Message-ID: <20200501202322.GC4760@linux.intel.com> (raw)
In-Reply-To: <20200501185147.208192-1-yuanyu@google.com>

On Fri, May 01, 2020 at 11:51:46AM -0700, Forrest Yuan Yu wrote:
> This RFC is to add a hypercall UCALL so that guest can communicate with
> the userspace hypervisor. A guest may want to do this in different
> scenarios. For example, a guest can ask the userspace hypervisor to
> harden security by setting restricted access permissions on guest SLAT
> entries.
> 
> Please note this hypercall provides the infrastructure for this type of
> communication but does not enforce the protocol. A proposal for the
> guest/userspace communication protocol will follow if this RFC is
> accepted.

It's hard to review certain aspects of the proposal without seeing the
usage of it.  Can you post the whole thing as an RFC?

      parent reply	other threads:[~2020-05-01 20:23 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-01 18:51 [PATCH RFC 0/1] Hypercall UCALL for guest/userspace communication Forrest Yuan Yu
2020-05-01 18:51 ` [PATCH RFC 1/1] KVM: x86: add KVM_HC_UCALL hypercall Forrest Yuan Yu
2020-05-01 20:45   ` Sean Christopherson
2020-05-02  1:05     ` Liran Alon
2020-05-05 18:49       ` Jim Mattson
2020-05-05 23:53       ` Forrest Yuan Yu
2020-05-05 22:50     ` Forrest Yuan Yu
2020-05-01 20:23 ` Sean Christopherson [this message]

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