From: Borislav Petkov <bp@alien8.de>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>,
tglx@linutronix.de, mingo@redhat.com, luto@kernel.org,
peterz@infradead.org, sathyanarayanan.kuppuswamy@linux.intel.com,
aarcange@redhat.com, ak@linux.intel.com,
dan.j.williams@intel.com, david@redhat.com, hpa@zytor.com,
jgross@suse.com, jmattson@google.com, joro@8bytes.org,
jpoimboe@redhat.com, knsathya@kernel.org, pbonzini@redhat.com,
sdeep@vmware.com, seanjc@google.com, tony.luck@intel.com,
vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCHv3 02/32] x86/coco: Add API to handle encryption mask
Date: Tue, 22 Feb 2022 14:37:27 +0100 [thread overview]
Message-ID: <YhTnF4Wpd8/9QjO/@zn.tnic> (raw)
In-Reply-To: <20220222110312.q7eaepfph2tyjq3e@black.fi.intel.com>
On Tue, Feb 22, 2022 at 02:03:12PM +0300, Kirill A. Shutemov wrote:
> I would rather make cc_mkenc()/cc_mkdec() to operate on u64 (or
> phys_addr_t?) while pgprot_encrypted()/pgprot_decrypted() cover pgprot_t.
> It also makes set_memory cleaner:
>
> cpa.mask_set = __pgprot(enc ? cc_mkenc(0) : cc_mkdec(0));
> cpa.mask_clr = __pgprot(enc ? cc_mkdec(0) : cc_mkenc(0));
>
> Opinions?
Right, do I see it correctly that the cc_mk{enc,dec}() things should
take a u64 as an argument and return a pgprot_t, and that would be the
most optimal way for all the use cases?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2022-02-22 13:37 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-18 16:16 [PATCHv3 00/32] TDX Guest: TDX core support Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 01/32] x86/mm: Fix warning on build with X86_MEM_ENCRYPT=y Kirill A. Shutemov
2022-02-18 19:39 ` Dave Hansen
2022-02-18 16:16 ` [PATCHv3 02/32] x86/coco: Add API to handle encryption mask Kirill A. Shutemov
2022-02-18 20:36 ` Dave Hansen
2022-02-18 21:33 ` Kirill A. Shutemov
2022-02-18 21:58 ` Borislav Petkov
2022-02-19 0:13 ` [PATCHv3.1 2/32] x86/coco: Explicitly declare type of confidential computing platform Kirill A. Shutemov
2022-02-19 0:13 ` [PATCHv3.1 2.1/2] x86/coco: Add API to handle encryption mask Kirill A. Shutemov
2022-02-21 18:31 ` Tom Lendacky
2022-02-21 22:14 ` Kirill A. Shutemov
2022-02-21 21:05 ` Borislav Petkov
2022-02-21 22:10 ` Kirill A. Shutemov
2022-02-21 22:36 ` Borislav Petkov
2022-02-21 23:25 ` Kirill A. Shutemov
2022-02-22 13:31 ` Borislav Petkov
2022-02-21 11:07 ` [PATCHv3.1 2/32] x86/coco: Explicitly declare type of confidential computing platform Borislav Petkov
2022-02-21 11:44 ` Kirill A. Shutemov
2022-02-21 12:05 ` Borislav Petkov
2022-02-21 13:52 ` Wei Liu
2022-02-21 20:20 ` Borislav Petkov
2022-02-21 19:28 ` [PATCHv3 02/32] x86/coco: Add API to handle encryption mask Dave Hansen
2022-02-21 19:49 ` Borislav Petkov
2022-02-21 22:21 ` Kirill A. Shutemov
2022-02-21 22:56 ` Borislav Petkov
2022-02-21 23:18 ` Kirill A. Shutemov
2022-02-22 13:28 ` Borislav Petkov
2022-02-21 22:28 ` Kirill A. Shutemov
2022-02-22 11:03 ` Kirill A. Shutemov
2022-02-22 13:37 ` Borislav Petkov [this message]
2022-02-22 13:52 ` Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 03/32] x86/tdx: Detect running as a TDX guest in early boot Kirill A. Shutemov
2022-02-18 21:07 ` Dave Hansen
2022-02-20 15:01 ` Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 04/32] x86/tdx: Provide common base for SEAMCALL and TDCALL C wrappers Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 05/32] x86/tdx: Add __tdx_module_call() and __tdx_hypercall() helper functions Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 06/32] x86/tdx: Extend the confidential computing API to support TDX guests Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 07/32] x86/tdx: Exclude shared bit from __PHYSICAL_MASK Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 08/32] x86/traps: Add #VE support for TDX guest Kirill A. Shutemov
2022-02-22 7:19 ` Dingji Li
2022-02-22 11:11 ` Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 09/32] x86/tdx: Add HLT support for TDX guests Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 10/32] x86/tdx: Add MSR " Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 11/32] x86/tdx: Handle CPUID via #VE Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 12/32] x86/tdx: Handle in-kernel MMIO Kirill A. Shutemov
2022-02-18 16:16 ` [PATCHv3 13/32] x86/tdx: Detect TDX at early kernel decompression time Kirill A. Shutemov
2022-02-21 11:37 ` Cyrill Gorcunov
2022-02-21 13:53 ` Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 14/32] x86: Adjust types used in port I/O helpers Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 15/32] x86: Consolidate " Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 16/32] x86/boot: Allow to hook up alternative " Kirill A. Shutemov
2022-02-21 20:04 ` Tom Lendacky
2022-02-21 22:02 ` Kirill A. Shutemov
2022-02-22 1:25 ` Josh Poimboeuf
2022-02-18 16:17 ` [PATCHv3 17/32] x86/boot/compressed: Support TDX guest port I/O at decompression time Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 18/32] x86/tdx: Add port I/O emulation Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 19/32] x86/tdx: Handle early boot port I/O Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 20/32] x86/tdx: Wire up KVM hypercalls Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 21/32] x86/boot: Add a trampoline for booting APs via firmware handoff Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 22/32] x86/acpi, x86/boot: Add multiprocessor wake-up support Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 23/32] x86/boot: Set CR0.NE early and keep it set during the boot Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 24/32] x86/boot: Avoid #VE during boot for TDX platforms Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 25/32] x86/topology: Disable CPU online/offline control for TDX guests Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 26/32] x86/tdx: Make pages shared in ioremap() Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 27/32] x86/mm/cpa: Generailize __set_memory_enc_pgtable() Kirill A. Shutemov
2022-02-21 15:46 ` Brijesh Singh
2022-02-18 16:17 ` [PATCHv3 28/32] x86/mm/cpa: Add support for TDX shared memory Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 29/32] x86/kvm: Use bounce buffers for TD guest Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 30/32] x86/tdx: ioapic: Add shared bit for IOAPIC base address Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 31/32] ACPICA: Avoid cache flush on TDX guest Kirill A. Shutemov
2022-02-18 16:17 ` [PATCHv3 32/32] Documentation/x86: Document TDX kernel architecture Kirill A. Shutemov
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