linux-kernel - Re: [PATCH v4 17/28] KVM: TDX: Fold tdx_sept_zap_private_spte() into tdx_sept_remove_private

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Message-ID: <88d479a0-e849-49d6-86e7-8cd00daccee0@linux.intel.com>
Date: Fri, 31 Oct 2025 16:56:52 +0800
From: Binbin Wu <binbin.wu@...ux.intel.com>
To: Sean Christopherson <seanjc@...gle.com>
Cc: Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>,
 Tianrui Zhao <zhaotianrui@...ngson.cn>, Bibo Mao <maobibo@...ngson.cn>,
 Huacai Chen <chenhuacai@...nel.org>,
 Madhavan Srinivasan <maddy@...ux.ibm.com>, Anup Patel <anup@...infault.org>,
 Paul Walmsley <pjw@...nel.org>, Palmer Dabbelt <palmer@...belt.com>,
 Albert Ou <aou@...s.berkeley.edu>,
 Christian Borntraeger <borntraeger@...ux.ibm.com>,
 Janosch Frank <frankja@...ux.ibm.com>,
 Claudio Imbrenda <imbrenda@...ux.ibm.com>,
 Paolo Bonzini <pbonzini@...hat.com>, "Kirill A. Shutemov" <kas@...nel.org>,
 linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
 kvm@...r.kernel.org, loongarch@...ts.linux.dev, linux-mips@...r.kernel.org,
 linuxppc-dev@...ts.ozlabs.org, kvm-riscv@...ts.infradead.org,
 linux-riscv@...ts.infradead.org, x86@...nel.org, linux-coco@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Ira Weiny <ira.weiny@...el.com>,
 Kai Huang <kai.huang@...el.com>, Michael Roth <michael.roth@....com>,
 Yan Zhao <yan.y.zhao@...el.com>, Vishal Annapurve <vannapurve@...gle.com>,
 Rick Edgecombe <rick.p.edgecombe@...el.com>,
 Ackerley Tng <ackerleytng@...gle.com>
Subject: Re: [PATCH v4 17/28] KVM: TDX: Fold tdx_sept_zap_private_spte() into
 tdx_sept_remove_private_spte()

On 10/31/2025 4:09 AM, Sean Christopherson wrote:
> Do TDH_MEM_RANGE_BLOCK directly in tdx_sept_remove_private_spte() instead
> of using a one-off helper now that the nr_premapped tracking is gone.
>
> Opportunistically drop the WARN on hugepages, which was dead code (see the
> KVM_BUG_ON() in tdx_sept_remove_private_spte()).
>
> No functional change intended.
>
> Reviewed-by: Rick Edgecombe <rick.p.edgecombe@...el.com>
> Reviewed-by: Kai Huang <kai.huang@...el.com>
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>

Reviewed-by: Binbin Wu <binbin.wu@...ux.intel.com>