Re: [PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features

From: Tom Lendacky <thomas.lendacky@amd.com>
Date: 2021-08-19 16:40:11
Also in: amd-gfx, dri-devel, kexec, kvm, linux-efi, linux-fsdevel, linux-iommu, linux-s390, lkml, platform-driver-x86
Reply to: Christoph Hellwig, 2021-08-19

On 8/19/21 4:46 AM, Christoph Hellwig wrote:

On Fri, Aug 13, 2021 at 11:59:21AM -0500, Tom Lendacky wrote:

quoted

+#define PATTR_MEM_ENCRYPT		0	/* Encrypted memory */
+#define PATTR_HOST_MEM_ENCRYPT		1	/* Host encrypted memory */
+#define PATTR_GUEST_MEM_ENCRYPT		2	/* Guest encrypted memory */
+#define PATTR_GUEST_PROT_STATE		3	/* Guest encrypted state */

Please write an actual detailed explanaton of what these mean, that
is what implications it has on the kernel.

Will do.

Thanks,
Tom

Tom Lendacky · 2021-08-13
[PATCH v2 01/12] x86/ioremap: Selectively build arch override encryption functions · Tom Lendacky · 2021-08-13
Re: [PATCH v2 01/12] x86/ioremap: Selectively build arch override encryption functions · Borislav Petkov · 2021-08-14
[PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features · Tom Lendacky · 2021-08-13
Re: [PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features · Kuppuswamy, Sathyanarayanan · 2021-08-13
Re: [PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features · Borislav Petkov · 2021-08-14
Re: [PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features · Tom Lendacky · 2021-08-14
Re: [PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features · Christoph Hellwig · 2021-08-19
Re: [PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features · Tom Lendacky · 2021-08-19
[PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Tom Lendacky · 2021-08-13
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Borislav Petkov · 2021-08-14
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Tom Lendacky · 2021-08-15
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Borislav Petkov · 2021-08-15
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Tom Lendacky · 2021-08-17
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Borislav Petkov · 2021-08-17
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Christoph Hellwig · 2021-08-19
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Borislav Petkov · 2021-08-19
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Tom Lendacky · 2021-08-19
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Kuppuswamy, Sathyanarayanan · 2021-08-19
Re: [PATCH v2 03/12] x86/sev: Add an x86 version of prot_guest_has() · Christoph Hellwig · 2021-08-24
[PATCH v2 04/12] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() · Tom Lendacky · 2021-08-13
Re: [PATCH v2 04/12] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() · Borislav Petkov · 2021-08-17
Re: [PATCH v2 04/12] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() · Tom Lendacky · 2021-08-17
Re: [PATCH v2 04/12] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() · Michael Ellerman · 2021-08-17
Re: [PATCH v2 04/12] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() · Christoph Hellwig · 2021-08-19
Re: [PATCH v2 04/12] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() · Tom Lendacky · 2021-08-19
[PATCH v2 05/12] x86/sme: Replace occurrences of sme_active() with prot_guest_has() · Tom Lendacky · 2021-08-13
Re: [PATCH v2 05/12] x86/sme: Replace occurrences of sme_active() with prot_guest_has() · Borislav Petkov · 2021-08-17
Re: [PATCH v2 05/12] x86/sme: Replace occurrences of sme_active() with prot_guest_has() · Tom Lendacky · 2021-08-17
Re: [PATCH v2 05/12] x86/sme: Replace occurrences of sme_active() with prot_guest_has() · Borislav Petkov · 2021-08-17
[PATCH v2 06/12] x86/sev: Replace occurrences of sev_active() with prot_guest_has() · Tom Lendacky · 2021-08-13
Re: [PATCH v2 06/12] x86/sev: Replace occurrences of sev_active() with prot_guest_has() · Borislav Petkov · 2021-08-17
Re: [PATCH v2 06/12] x86/sev: Replace occurrences of sev_active() with prot_guest_has() · Tom Lendacky · 2021-08-17
Re: [PATCH v2 06/12] x86/sev: Replace occurrences of sev_active() with prot_guest_has() · Borislav Petkov · 2021-08-17
[PATCH v2 07/12] x86/sev: Replace occurrences of sev_es_active() with prot_guest_has() · Tom Lendacky · 2021-08-13
Re: [PATCH v2 07/12] x86/sev: Replace occurrences of sev_es_active() with prot_guest_has() · Borislav Petkov · 2021-08-17
[PATCH v2 08/12] treewide: Replace the use of mem_encrypt_active() with prot_guest_has() · Tom Lendacky · 2021-08-13
[PATCH v2 09/12] mm: Remove the now unused mem_encrypt_active() function · Tom Lendacky · 2021-08-13
Re: [PATCH v2 09/12] mm: Remove the now unused mem_encrypt_active() function · Borislav Petkov · 2021-08-17
Re: [PATCH v2 09/12] mm: Remove the now unused mem_encrypt_active() function · Borislav Petkov · 2021-08-17
Re: [PATCH v2 09/12] mm: Remove the now unused mem_encrypt_active() function · Tom Lendacky · 2021-08-17
[PATCH v2 10/12] x86/sev: Remove the now unused mem_encrypt_active() function · Tom Lendacky · 2021-08-13
[PATCH v2 11/12] powerpc/pseries/svm: Remove the now unused mem_encrypt_active() function · Tom Lendacky · 2021-08-13
[PATCH v2 12/12] s390/mm: Remove the now unused mem_encrypt_active() function · Tom Lendacky · 2021-08-13
Tom Lendacky · 2021-08-13
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