From: Andi Kleen <ak@linux.intel.com>
To: Kai Huang <kai.huang@intel.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: linux-mm@kvack.org, seanjc@google.com, pbonzini@redhat.com,
dave.hansen@intel.com, dan.j.williams@intel.com,
rafael.j.wysocki@intel.com, kirill.shutemov@linux.intel.com,
reinette.chatre@intel.com, len.brown@intel.com,
tony.luck@intel.com, peterz@infradead.org,
isaku.yamahata@intel.com, chao.gao@intel.com,
sathyanarayanan.kuppuswamy@linux.intel.com, bagasdotme@gmail.com,
sagis@google.com, imammedo@redhat.com
Subject: Re: [PATCH v6 12/21] x86/virt/tdx: Add placeholder to construct TDMRs to cover all TDX memory regions
Date: Thu, 27 Oct 2022 08:31:21 -0700 [thread overview]
Message-ID: <f6d0b10a-94be-ff33-9742-058469078380@linux.intel.com> (raw)
In-Reply-To: <fe0e1a1133166ca4008840cd1a5959fa70632f07.1666824663.git.kai.huang@intel.com>
> +/* Calculate the actual TDMR_INFO size */
> +static inline int cal_tdmr_size(void)
> +{
> + int tdmr_sz;
> +
> + /*
> + * The actual size of TDMR_INFO depends on the maximum number
> + * of reserved areas.
> + */
> + tdmr_sz = sizeof(struct tdmr_info);
> + tdmr_sz += sizeof(struct tdmr_reserved_area) *
> + tdx_sysinfo.max_reserved_per_tdmr;
would seem safer to have a overflow check here.
next prev parent reply other threads:[~2022-10-27 15:31 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-26 23:15 [PATCH v6 00/21] TDX host kernel support Kai Huang
2022-10-26 23:16 ` [PATCH v6 01/21] x86/tdx: Use enum to define page level of TDX supported page sizes Kai Huang
2022-10-27 7:08 ` Xiaoyao Li
2022-10-27 8:42 ` Huang, Kai
2022-10-27 13:51 ` Kirill A. Shutemov
2022-10-28 0:47 ` Huang, Kai
2022-10-27 22:28 ` Isaku Yamahata
2022-10-27 15:27 ` Dave Hansen
2022-10-28 0:10 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 02/21] x86/virt/tdx: Detect TDX during kernel boot Kai Huang
2022-10-26 23:16 ` [PATCH v6 03/21] x86/virt/tdx: Disable TDX if X2APIC is not enabled Kai Huang
2022-10-26 23:16 ` [PATCH v6 04/21] x86/virt/tdx: Use all boot-time system memory as TDX memory Kai Huang
2022-10-26 23:16 ` [PATCH v6 05/21] x86/virt/tdx: Add skeleton to initialize TDX on demand Kai Huang
2022-10-26 23:16 ` [PATCH v6 06/21] x86/virt/tdx: Implement functions to make SEAMCALL Kai Huang
2022-10-26 23:16 ` [PATCH v6 07/21] x86/virt/tdx: Shut down TDX module in case of error Kai Huang
2022-10-26 23:16 ` [PATCH v6 08/21] x86/virt/tdx: Do TDX module global initialization Kai Huang
2022-10-26 23:16 ` [PATCH v6 09/21] x86/virt/tdx: Do logical-cpu scope TDX module initialization Kai Huang
2022-10-26 23:16 ` [PATCH v6 10/21] x86/virt/tdx: Get information about TDX module and TDX-capable memory Kai Huang
2022-10-26 23:16 ` [PATCH v6 11/21] x86/virt/tdx: Sanity check all TDX memory ranges are convertible memory Kai Huang
2022-10-26 23:16 ` [PATCH v6 12/21] x86/virt/tdx: Add placeholder to construct TDMRs to cover all TDX memory regions Kai Huang
2022-10-27 15:31 ` Andi Kleen [this message]
2022-10-28 2:21 ` Huang, Kai
2022-11-03 8:55 ` Huang, Kai
2022-11-03 15:05 ` Dave Hansen
2022-11-03 22:07 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 13/21] x86/virt/tdx: Create " Kai Huang
2022-10-26 23:16 ` [PATCH v6 14/21] x86/virt/tdx: Allocate and set up PAMTs for TDMRs Kai Huang
2022-10-26 23:16 ` [PATCH v6 15/21] x86/virt/tdx: Set up reserved areas for all TDMRs Kai Huang
2022-10-26 23:16 ` [PATCH v6 16/21] x86/virt/tdx: Reserve TDX module global KeyID Kai Huang
2022-10-27 12:40 ` Andi Kleen
2022-10-28 1:24 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 17/21] x86/virt/tdx: Configure TDX module with TDMRs and " Kai Huang
2022-10-26 23:16 ` [PATCH v6 18/21] x86/virt/tdx: Configure global KeyID on all packages Kai Huang
2022-10-27 12:35 ` Andi Kleen
2022-10-28 1:07 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 19/21] x86/virt/tdx: Initialize all TDMRs Kai Huang
2022-10-27 12:30 ` Andi Kleen
2022-10-28 1:08 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 20/21] x86/virt/tdx: Flush cache in kexec() when TDX is enabled Kai Huang
2022-10-26 23:16 ` [PATCH v6 21/21] Documentation/x86: Add documentation for TDX host support Kai Huang
2022-10-27 12:38 ` Andi Kleen
2022-10-28 2:31 ` Huang, Kai
2022-10-28 12:52 ` Bagas Sanjaya
2022-10-28 14:16 ` Dave Hansen
2022-10-26 23:26 ` [PATCH v6 00/21] TDX host kernel support Dave Hansen
2022-10-26 23:51 ` Huang, Kai
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