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From: | Mark Kanda |
Subject: | Re: [Qemu-devel] Nested SVM only enabled (by default) in pc-i440fx-2.1? |
Date: | Wed, 27 Feb 2019 21:58:48 -0600 |
User-agent: | Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.5.2 |
On 2/27/2019 4:05 PM, Mark Kanda wrote:
Hi all,I noticed nested SVM is enabled only in pc-i440fx-2.1 (default is disabled); this was added when 2.1 was the latest:75d373ef97 ("target-i386: Disable SVM by default in KVM mode")However, this change was not carried forward to newer machine types. Is this an oversight? Is there a reason we (still) need SVM disabled by default?
To clarify, it's my understanding the above patch was added to disable nested SVM in pc-i440fx-2.2 (and future) machine types due to stability issues (while keeping it enabled in pc-i440fx-2.1 and previous machine types).
I'm wondering if nested SVM is now mature enough to remove this restriction and enable it by default (at least on recent machine types).
Thanks/regards, -Mark
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