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From: Dan Williams <dan.j.williams@intel.com>
To: Kai Huang <kai.huang@intel.com>, <dave.hansen@intel.com>,
	<kirill.shutemov@linux.intel.com>, <tglx@linutronix.de>,
	<bp@alien8.de>, <peterz@infradead.org>, <mingo@redhat.com>,
	<hpa@zytor.com>, <dan.j.williams@intel.com>, <seanjc@google.com>,
	<pbonzini@redhat.com>
Cc: <x86@kernel.org>, <linux-kernel@vger.kernel.org>,
	<kvm@vger.kernel.org>, <rick.p.edgecombe@intel.com>,
	<isaku.yamahata@intel.com>, <chao.gao@intel.com>,
	<binbin.wu@linux.intel.com>, <adrian.hunter@intel.com>,
	<kai.huang@intel.com>
Subject: Re: [PATCH v3 1/8] x86/virt/tdx: Rename 'struct tdx_tdmr_sysinfo' to reflect the spec better
Date: Fri, 30 Aug 2024 15:05:58 -0700	[thread overview]
Message-ID: <66d2424628a4d_18c9294f9@dwillia2-xfh.jf.intel.com.notmuch> (raw)
In-Reply-To: <b5e4788739fd7f9100a23808bebe1bb70f4b9073.1724741926.git.kai.huang@intel.com>

Kai Huang wrote:
> The TDX module provides a set of "global metadata fields".  They report
> things like TDX module version, supported features, and fields related
> to create/run TDX guests and so on.
> 
> TDX organizes those metadata fields by "Class"es based on the meaning of
> those fields.  E.g., for now the kernel only reads "TD Memory Region"
> (TDMR) related fields for module initialization.  Those fields are
> defined under class "TDMR Info".
> 
> There are both immediate needs to read more metadata fields for module
> initialization and near-future needs for other kernel components like
> KVM to run TDX guests.  To meet all those requirements, the idea is the
> TDX host core-kernel to provide a centralized, canonical, and read-only
> structure for the global metadata that comes out from the TDX module for
> all kernel components to use.
> 
> More specifically, the target is to end up with something like:
> 
>        struct tdx_sys_info {
> 	       struct tdx_sys_info_classA a;
> 	       struct tdx_sys_info_classB b;
> 	       ...
>        };
> 
> Currently the kernel organizes all fields under "TDMR Info" class in
> 'struct tdx_tdmr_sysinfo'.  To prepare for the above target, rename the
> structure to 'struct tdx_sys_info_tdmr' to follow the class name better.
> 
> No functional change intended.
> 
> Signed-off-by: Kai Huang <kai.huang@intel.com>
> ---
> v2 -> v3:
>  - Split out as a separate patch and place it at beginning:
> 
>    https://lore.kernel.org/kvm/cover.1721186590.git.kai.huang@intel.com/T/#m8fec7c429242d640cf5e756eb68e3b822e6dff8b
>  
>  - Rename to 'struct tdx_sys_info_tdmr':
> 
>    https://lore.kernel.org/kvm/cover.1721186590.git.kai.huang@intel.com/T/#md73dd9b02a492acf4a6facae63e8d030e320967d
>    https://lore.kernel.org/kvm/cover.1721186590.git.kai.huang@intel.com/T/#m8fec7c429242d640cf5e756eb68e3b822e6dff8b
> 
> ---
>  arch/x86/virt/vmx/tdx/tdx.c | 36 ++++++++++++++++++------------------
>  arch/x86/virt/vmx/tdx/tdx.h |  2 +-
>  2 files changed, 19 insertions(+), 19 deletions(-)

Looks good to me,

Reviewed-by: Dan Williams <dan.j.williams@intel.com>

  parent reply	other threads:[~2024-08-30 22:06 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-27  7:14 [PATCH v3 0/8] TDX host: metadata reading tweaks, bug fix and info dump Kai Huang
2024-08-27  7:14 ` [PATCH v3 1/8] x86/virt/tdx: Rename 'struct tdx_tdmr_sysinfo' to reflect the spec better Kai Huang
2024-08-27 13:10   ` Adrian Hunter
2024-08-27 22:20     ` Huang, Kai
2024-09-24 11:39       ` Huang, Kai
2024-08-30 22:05   ` Dan Williams [this message]
2024-08-27  7:14 ` [PATCH v3 2/8] x86/virt/tdx: Remove 'struct field_mapping' and implement TD_SYSINFO_MAP() macro Kai Huang
2024-08-29  7:20   ` Adrian Hunter
2024-08-30 10:52     ` Huang, Kai
2024-09-06 21:30     ` Dan Williams
2024-09-09  9:59       ` Huang, Kai
2024-09-06 20:21   ` Dan Williams
2024-09-09  9:59     ` Huang, Kai
2024-08-27  7:14 ` [PATCH v3 3/8] x86/virt/tdx: Prepare to support reading other global metadata fields Kai Huang
2024-08-30  6:43   ` Adrian Hunter
2024-08-30 11:02     ` Huang, Kai
2024-08-30  9:05   ` Nikolay Borisov
2024-08-30 11:09     ` Huang, Kai
2024-09-06 21:34   ` Dan Williams
2024-09-09 12:28     ` Huang, Kai
2024-08-27  7:14 ` [PATCH v3 4/8] x86/virt/tdx: Refine a comment to reflect the latest TDX spec Kai Huang
2024-08-30  6:45   ` Adrian Hunter
2024-08-30  9:14   ` Nikolay Borisov
2024-08-27  7:14 ` [PATCH v3 5/8] x86/virt/tdx: Start to track all global metadata in one structure Kai Huang
2024-08-30  7:02   ` Adrian Hunter
2024-08-30 11:10     ` Huang, Kai
2024-08-30 11:01   ` Nikolay Borisov
2024-08-30 11:57     ` Huang, Kai
2024-08-27  7:14 ` [PATCH v3 6/8] x86/virt/tdx: Print TDX module basic information Kai Huang
2024-09-06 22:46   ` Dan Williams
2024-09-09 10:18     ` Huang, Kai
2024-08-27  7:14 ` [PATCH v3 7/8] x86/virt/tdx: Reduce TDMR's reserved areas by using CMRs to find memory holes Kai Huang
2024-08-30 10:50   ` Adrian Hunter
2024-08-30 11:52     ` Huang, Kai
2024-08-30 12:02       ` Adrian Hunter
2024-08-30 12:27   ` Nikolay Borisov
2024-09-06 23:31   ` Dan Williams
2024-09-09 10:30     ` Huang, Kai
2024-08-27  7:14 ` [PATCH v3 8/8] x86/virt/tdx: Don't initialize module that doesn't support NO_RBP_MOD feature Kai Huang
2024-08-30 11:01   ` Adrian Hunter
2024-09-06 23:36   ` Dan Williams
2024-09-09 10:21     ` Huang, Kai

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