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From: Xiaoyao Li <xiaoyao.li@intel.com>
To: Yan Zhao <yan.y.zhao@intel.com>,
	dave.hansen@linux.intel.com, pbonzini@redhat.com,
	seanjc@google.com
Cc: tglx@kernel.org, mingo@redhat.com, bp@alien8.de, kas@kernel.org,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, linux-coco@lists.linux.dev,
	kai.huang@intel.com, rick.p.edgecombe@intel.com,
	yilun.xu@linux.intel.com, vannapurve@google.com,
	ackerleytng@google.com, sagis@google.com,
	binbin.wu@linux.intel.com, isaku.yamahata@intel.com
Subject: Re: [PATCH v2 4/4] x86/virt/tdx: Move mk_keyed_paddr() to tdx.c due to no external users
Date: Thu, 7 May 2026 16:07:01 +0800	[thread overview]
Message-ID: <3eadc407-181e-4cc5-a03a-78d3c0c39fcb@intel.com> (raw)
In-Reply-To: <20260430015014.24261-1-yan.y.zhao@intel.com>

On 4/30/2026 9:50 AM, Yan Zhao wrote:
> Move mk_keyed_paddr() from tdx.h to tdx.c to avoid unnecessary header
> inclusion and improve encapsulation since there are no users outside of
> tdx.c.
> 
> No functional change intended.

Missing a new blank line.

> Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>

Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>

> ---
>   arch/x86/include/asm/tdx.h  | 6 ------
>   arch/x86/virt/vmx/tdx/tdx.c | 6 ++++++
>   2 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/x86/include/asm/tdx.h b/arch/x86/include/asm/tdx.h
> index 9c63deaa0e8f..503f9a3f46d6 100644
> --- a/arch/x86/include/asm/tdx.h
> +++ b/arch/x86/include/asm/tdx.h
> @@ -177,12 +177,6 @@ struct tdx_vp {
>   	struct page **tdcx_pages;
>   };
>   
> -static inline u64 mk_keyed_paddr(u16 hkid, kvm_pfn_t pfn)
> -{
> -	/* KeyID bits are just above the physical address bits. */
> -	return PFN_PHYS(pfn) | ((u64)hkid << boot_cpu_data.x86_phys_bits);
> -}
> -
>   u64 tdh_vp_enter(struct tdx_vp *vp, struct tdx_module_args *args);
>   u64 tdh_mng_addcx(struct tdx_td *td, struct page *tdcs_page);
>   u64 tdh_mem_page_add(struct tdx_td *td, u64 gpa, kvm_pfn_t pfn, struct page *source,
> diff --git a/arch/x86/virt/vmx/tdx/tdx.c b/arch/x86/virt/vmx/tdx/tdx.c
> index deb67e68f85f..967482ae3c80 100644
> --- a/arch/x86/virt/vmx/tdx/tdx.c
> +++ b/arch/x86/virt/vmx/tdx/tdx.c
> @@ -1911,6 +1911,12 @@ u64 tdh_phymem_cache_wb(bool resume)
>   }
>   EXPORT_SYMBOL_FOR_KVM(tdh_phymem_cache_wb);
>   
> +static inline u64 mk_keyed_paddr(u16 hkid, kvm_pfn_t pfn)
> +{
> +	/* KeyID bits are just above the physical address bits. */
> +	return PFN_PHYS(pfn) | ((u64)hkid << boot_cpu_data.x86_phys_bits);
> +}
> +
>   u64 tdh_phymem_page_wbinvd_tdr(struct tdx_td *td)
>   {
>   	struct tdx_module_args args = {};


      parent reply	other threads:[~2026-05-07  8:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260430014852.24183-1-yan.y.zhao@intel.com>
     [not found] ` <20260430014929.24210-1-yan.y.zhao@intel.com>
2026-05-07  7:49   ` [PATCH v2 1/4] x86/tdx: Use PFN directly for mapping guest private memory Xiaoyao Li
2026-05-07  8:08     ` Yan Zhao
2026-05-07 18:46       ` Sean Christopherson
     [not found] ` <20260430014948.24226-1-yan.y.zhao@intel.com>
2026-05-07  7:54   ` [PATCH v2 2/4] x86/tdx: Use PFN directly for unmapping " Xiaoyao Li
     [not found] ` <20260430015001.24242-1-yan.y.zhao@intel.com>
2026-05-07  8:02   ` [PATCH v2 3/4] x86/tdx: Drop exported function tdx_quirk_reset_page() Xiaoyao Li
     [not found] ` <20260430015014.24261-1-yan.y.zhao@intel.com>
2026-05-07  8:07   ` Xiaoyao Li [this message]

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