From: Paolo Bonzini <pbonzini@redhat.com>
To: "Sean Christopherson" <sean.j.christopherson@intel.com>,
"Radim Krčmář" <rkrcmar@redhat.com>
Cc: kvm@vger.kernel.org, Jim Mattson <jmattson@google.com>,
Liran Alon <liran.alon@oracle.com>
Subject: Re: [PATCH 1/7] KVM: nVMX: Intercept VMWRITEs to read-only shadow VMCS fields
Date: Thu, 6 Jun 2019 15:26:47 +0200 [thread overview]
Message-ID: <21044f4f-80e8-7a15-9a8c-daaec888d3d0@redhat.com> (raw)
In-Reply-To: <20190507153629.3681-2-sean.j.christopherson@intel.com>
On 07/05/19 17:36, Sean Christopherson wrote:
> Note, "writable" in this context means
> + * "writable by the guest", i.e. tagged SHADOW_FIELD_RW. Note #2, the set of
> + * fields tagged SHADOW_FIELD_RO may or may not align with the "read-only"
> + * VM-exit information fields (which are actually writable if the vCPU is
> + * configured to support "VMWRITE to any supported field in the VMCS").
"There's a few more pages of P.S.'s here"
(https://youtu.be/rKlrTJ7WN18?t=170)
Paolo
next prev parent reply other threads:[~2019-06-06 13:26 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-07 15:36 [PATCH 0/7] KVM: nVMX: Optimize VMCS data copying Sean Christopherson
2019-05-07 15:36 ` [PATCH 1/7] KVM: nVMX: Intercept VMWRITEs to read-only shadow VMCS fields Sean Christopherson
2019-06-06 13:26 ` Paolo Bonzini [this message]
2019-06-13 17:02 ` Jim Mattson
2019-06-13 17:18 ` Paolo Bonzini
2019-06-13 17:36 ` Jim Mattson
2019-06-13 17:59 ` Paolo Bonzini
2019-05-07 15:36 ` [PATCH 2/7] KVM: nVMX: Intercept VMWRITEs to GUEST_{CS,SS}_AR_BYTES Sean Christopherson
2019-06-06 13:31 ` Paolo Bonzini
2019-05-07 15:36 ` [PATCH 3/7] KVM: nVMX: Track vmcs12 offsets for shadowed VMCS fields Sean Christopherson
2019-05-07 15:36 ` [PATCH 4/7] KVM: nVMX: Lift sync_vmcs12() out of prepare_vmcs12() Sean Christopherson
2019-05-07 15:36 ` [PATCH 5/7] KVM: nVMX: Use descriptive names for VMCS sync functions and flags Sean Christopherson
2019-05-07 15:36 ` [PATCH 6/7] KVM: nVMX: Add helpers to identify shadowed VMCS fields Sean Christopherson
2019-05-07 15:36 ` [PATCH 7/7] KVM: nVMX: Sync rarely accessed guest fields only when needed Sean Christopherson
2019-06-06 15:29 ` Paolo Bonzini
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