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Date:   Wed, 20 Dec 2017 10:45:02 +0100
From:   Paolo Bonzini <>
To:     Rhett Rhett <>
Cc:     Radim Krčmář <>,,,,,
Subject: Re: [PATCH] KVM:Hyper-V reduce one kvm_write_guest operation

On 20/12/2017 10:33, Rhett Rhett wrote:
> tsc_sequence  had been set to 0 before,  so the tsc page won't function.
> guest has no chance to read tsc page before the last write.

kvm_write_guest is not atomic.  The guest can see a non-zero sequence
before the other fields have been set.


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