Re: [PATCH 5/5] KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes

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Subject: Re: [PATCH 5/5] KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes
From: Sean Christopherson <seanjc@xxxxxxxxxx>
Date: Wed, 10 Feb 2021 13:13:07 -0800
Cc: "pbonzini@xxxxxxxxxx" <pbonzini@xxxxxxxxxx>, "jmattson@xxxxxxxxxx" <jmattson@xxxxxxxxxx>, "joro@xxxxxxxxxx" <joro@xxxxxxxxxx>, "kvm@xxxxxxxxxxxxxxx" <kvm@xxxxxxxxxxxxxxx>, "vkuznets@xxxxxxxxxx" <vkuznets@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "wanpengli@xxxxxxxxxxx" <wanpengli@xxxxxxxxxxx>
In-reply-to: <8752a59b694671d25308d644cba661c4ec128094.camel@amazon.co.uk>
References: <20210210182609.435200-1-seanjc@google.com> <20210210182609.435200-6-seanjc@google.com> <8752a59b694671d25308d644cba661c4ec128094.camel@amazon.co.uk>

On Wed, Feb 10, 2021, Woodhouse, David wrote:
> On Wed, 2021-02-10 at 10:26 -0800, Sean Christopherson wrote:
> So it isn't clear the additionally padding really buys us anything; if
> we play this game without knowing the ABI we'd be screwed anyway. But
> it doesn't hurt.

Ya, this is purely for folks reading the code and wondering how 62==64.

Follow-Ups:
- Re: [PATCH 5/5] KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes
  - From: Woodhouse, David

References:
- [PATCH 0/5] KVM: x86/xen: Selftest fixes and a cleanup
  - From: Sean Christopherson
- [PATCH 5/5] KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes
  - From: Sean Christopherson
- Re: [PATCH 5/5] KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes
  - From: Woodhouse, David

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