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Date: Fri, 17 Feb 2017 12:22:14 -0500 From: Bandan Das <bsd@...hat.com> To: Paolo Bonzini <pbonzini@...hat.com> Cc: linux-kernel@...r.kernel.org, kvm@...r.kernel.org Subject: Re: [PATCH] KVM: VMX: use vmcs_set/clear_bits for CPU-based execution controls Paolo Bonzini <pbonzini@...hat.com> writes: > ----- Original Message ----- >> From: "Bandan Das" <bsd@...hat.com> >> To: "Paolo Bonzini" <pbonzini@...hat.com> >> Cc: linux-kernel@...r.kernel.org, kvm@...r.kernel.org >> Sent: Friday, February 17, 2017 1:04:14 AM >> Subject: Re: [PATCH] KVM: VMX: use vmcs_set/clear_bits for CPU-based execution controls >> >> Paolo Bonzini <pbonzini@...hat.com> writes: >> >> > Signed-off-by: Paolo Bonzini <pbonzini@...hat.com> >> > --- >> >> I took a quick look and found these two potential >> consumers of these set/clear wrappers. >> >> vmcs_set_secondary_exec_control() >> vmx_set_virtual_x2apic_mode() >> >> Since this has been reviewed already, >> we can just have them later in a follow up >> (unless you left them out intentionally). > > Both of these can both set and clear bits, so they could be the > consumer of a new function > > void vmcs_write_bits(u16 field, u32 value, u32 mask) > > but I don't see much benefit in introducing it; the cognitive > load is higher than vmcs_{set,clear}_bits. Yes, agreed. Thanks! > Paolo
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