Messages in this thread | | | Date | Mon, 10 Mar 2014 13:24:10 +0100 | From | Paolo Bonzini <> | Subject | Re: [PATCH 4/7] KVM: vmx: Allow the guest to run with dirty debug registers |
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Il 10/03/2014 13:17, Radim Krčmář ha scritto: >> > I considered this, but decided that it's unlikely for emulation to >> > be faster than hardware---especially on those AMD CPUs that lack >> > decode assists (and it's good for VMX and SVM code to look as >> > similar as possible). > I meant to move it before the block that exits if there is the > 'exception on access' bit set in cr7, so we wouldn't exit again right > away on the actual access, which is quite likely. > (Exiting without emulation was a great move.) >
Ah yes, for the GD bit. I don't know, it's quite unlikely that anyone will use it... It's a feeble attempt at allowing virtualization of the debug registers without VMX.
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