From: Sean Christopherson <seanjc@google.com>
To: Ilias Stamatis <ilstam@amazon.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
pbonzini@redhat.com, mlevitsk@redhat.com, vkuznets@redhat.com,
wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org,
zamsden@gmail.com, mtosatti@redhat.com, dwmw@amazon.co.uk
Subject: Re: [PATCH v2 01/10] math64.h: Add mul_s64_u64_shr()
Date: Tue, 18 May 2021 22:36:58 +0000 [thread overview]
Message-ID: <YKRBilQy9K95EJIP@google.com> (raw)
In-Reply-To: <20210512150945.4591-2-ilstam@amazon.com>
On Wed, May 12, 2021, Ilias Stamatis wrote:
> This function is needed for the nested TSC scaling code where we need to
s/the nested/KVM's nested virtualization. Non-KVM folk will have no idea what
"nested" means without context. They may know not what nested virtualization is,
but this will at least give them a starting point for asking the right questions.
> multiply the signed TSC offset with the unsigned TSC multiplier.
next prev parent reply other threads:[~2021-05-18 22:37 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 15:09 [PATCH v2 00/10] KVM: Implement nested TSC scaling Ilias Stamatis
2021-05-12 15:09 ` [PATCH v2 01/10] math64.h: Add mul_s64_u64_shr() Ilias Stamatis
2021-05-18 22:36 ` Sean Christopherson [this message]
2021-05-12 15:09 ` [PATCH v2 02/10] KVM: X86: Store L1's TSC scaling ratio in 'struct kvm_vcpu_arch' Ilias Stamatis
2021-05-18 22:52 ` Sean Christopherson
2021-05-19 8:54 ` Stamatis, Ilias
2021-05-12 15:09 ` [PATCH v2 03/10] KVM: X86: Add kvm_scale_tsc_l1() and kvm_compute_tsc_offset_l1() Ilias Stamatis
2021-05-18 23:04 ` Sean Christopherson
2021-05-19 9:02 ` Stamatis, Ilias
2021-05-19 15:40 ` Sean Christopherson
2021-05-20 18:27 ` Stamatis, Ilias
2021-05-12 15:09 ` [PATCH v2 04/10] KVM: VMX: Add a TSC multiplier field in VMCS12 Ilias Stamatis
2021-05-12 15:09 ` [PATCH v2 05/10] KVM: X86: Add functions for retrieving L2 TSC fields from common code Ilias Stamatis
2021-05-12 15:09 ` [PATCH v2 06/10] KVM: X86: Add functions that calculate the 02 TSC offset and multiplier Ilias Stamatis
2021-05-18 23:21 ` Sean Christopherson
2021-05-19 10:15 ` Stamatis, Ilias
2021-05-12 15:09 ` [PATCH v2 07/10] KVM: X86: Move write_l1_tsc_offset() logic to common code and rename it Ilias Stamatis
2021-05-19 0:05 ` Sean Christopherson
2021-05-19 11:45 ` Stamatis, Ilias
2021-05-19 15:49 ` Sean Christopherson
2021-05-12 15:09 ` [PATCH v2 08/10] KVM: VMX: Set the TSC offset and multiplier on nested entry and exit Ilias Stamatis
2021-05-19 0:07 ` Sean Christopherson
2021-05-19 11:55 ` Stamatis, Ilias
2021-05-12 15:09 ` [PATCH v2 09/10] KVM: VMX: Expose TSC scaling to L2 Ilias Stamatis
2021-05-12 15:09 ` [PATCH v2 10/10] KVM: selftests: x86: Add vmx_nested_tsc_scaling_test Ilias Stamatis
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