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Re: Compatibility between -device sga and -machine graphics=off


From: Paolo Bonzini
Subject: Re: Compatibility between -device sga and -machine graphics=off
Date: Wed, 8 Sep 2021 18:28:01 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

On 08/09/21 18:08, Daniel P. Berrangé wrote:
Despite this difference, I was able migrate from a x86 guest using SGA
to a guest using graphics=off without errors being reported. So it
doesn't seem to change the migration data sections sent on the wire
at least.

It would probably break with Windows XP/2003 guests on AMD processors, as those are the ones that use kvmvapic. On other guests and processors, it's a no-op.

Paolo




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