[PATCH v3 8/8] treewide: Replace the use of mem_encrypt_active() with cc_platform_has()

Replace uses of mem_encrypt_active() with calls to cc_platform_has() with the CC_ATTR_MEM_ENCRYPT attribute. Remove the implementation of mem_encrypt_active() across all arches. For s390, since the default implementation of the cc_platform_has() matches the s390 implementation of

[PATCH v3 7/8] x86/sev: Replace occurrences of sev_es_active() with cc_platform_has()

Replace uses of sev_es_active() with the more generic cc_platform_has() using CC_ATTR_GUEST_STATE_ENCRYPT. If future support is added for other memory encyrption techonologies, the use of CC_ATTR_GUEST_STATE_ENCRYPT can be updated, as required. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav

[PATCH v3 6/8] x86/sev: Replace occurrences of sev_active() with cc_platform_has()

Replace uses of sev_active() with the more generic cc_platform_has() using CC_ATTR_GUEST_MEM_ENCRYPT. If future support is added for other memory encryption technologies, the use of CC_ATTR_GUEST_MEM_ENCRYPT can be updated, as required. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov

[PATCH v3 5/8] x86/sme: Replace occurrences of sme_active() with cc_platform_has()

Replace uses of sme_active() with the more generic cc_platform_has() using CC_ATTR_HOST_MEM_ENCRYPT. If future support is added for other memory encryption technologies, the use of CC_ATTR_HOST_MEM_ENCRYPT can be updated, as required. This also replaces two usages of sev_active() that are really

[PATCH v3 3/8] x86/sev: Add an x86 version of cc_platform_has()

Introduce an x86 version of the cc_platform_has() function. This will be used to replace vendor specific calls like sme_active(), sev_active(), etc. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: Andy Lutomirski Cc: Peter Zijlstra Co-developed-by: Andi Kleen

[PATCH v3 2/8] mm: Introduce a function to check for confidential computing features

In prep for other confidential computing technologies, introduce a generic helper function, cc_platform_has(), that can be used to check for specific active confidential computing attributes, like memory encryption. This is intended to eliminate having to add multiple technology-specific checks to

[PATCH v3 4/8] powerpc/pseries/svm: Add a powerpc version of cc_platform_has()

Introduce a powerpc version of the cc_platform_has() function. This will be used to replace the powerpc mem_encrypt_active() implementation, so the implementation will initially only support the CC_ATTR_MEM_ENCRYPT attribute. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras

[PATCH v3 1/8] x86/ioremap: Selectively build arch override encryption functions

In prep for other uses of the cc_platform_has() function besides AMD's memory encryption support, selectively build the AMD memory encryption architecture override functions only when CONFIG_AMD_MEM_ENCRYPT=y. These functions are: - early_memremap_pgprot_adjust() - arch_memremap_can_ram_remap()

Re: [PATCH v16 00/15] arm64: MMU enabled kexec relocation

On Mon, Aug 02, 2021 at 05:53:53PM -0400, Pavel Tatashin wrote: > Changelog: > v16: > - Merged with 5.14-rc4 > v15: > - Changed trans_pgd_copy_el2_vectors() to use vector table that > only shared by kexec and hibernate. This way sync does not have > dangling branch that