Linus Torvalds 38b334fc76
Merge tag 'x86_sev_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ...
Pull x86 SEV updates from Borislav Petkov:
- Add the x86 part of the SEV-SNP host support.
This will allow the kernel to be used as a KVM hypervisor capable of
running SNP (Secure Nested Paging) guests. Roughly speaking, SEV-SNP
is the ultimate goal of the AMD confidential computing side,
providing the most comprehensive confidential computing environment
up to date.
This is the x86 part and there is a KVM part which did not get ready
in time for the merge window so latter will be forthcoming in the
next cycle.
- Rework the early code's position-dependent SEV variable references in
order to allow building the kernel with clang and -fPIE/-fPIC and
-mcmodel=kernel
- The usual set of fixes, cleanups and improvements all over the place
* tag 'x86_sev_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
x86/sev: Disable KMSAN for memory encryption TUs
x86/sev: Dump SEV_STATUS
crypto: ccp - Have it depend on AMD_IOMMU
iommu/amd: Fix failure return from snp_lookup_rmpentry()
x86/sev: Fix position dependent variable references in startup code
crypto: ccp: Make snp_range_list static
x86/Kconfig: Remove CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
Documentation: virt: Fix up pre-formatted text block for SEV ioctls
crypto: ccp: Add the SNP_SET_CONFIG command
crypto: ccp: Add the SNP_COMMIT command
crypto: ccp: Add the SNP_PLATFORM_STATUS command
x86/cpufeatures: Enable/unmask SEV-SNP CPU feature
KVM: SEV: Make AVIC backing, VMSA and VMCB memory allocation SNP safe
crypto: ccp: Add panic notifier for SEV/SNP firmware shutdown on kdump
iommu/amd: Clean up RMP entries for IOMMU pages during SNP shutdown
crypto: ccp: Handle legacy SEV commands when SNP is enabled
crypto: ccp: Handle non-volatile INIT_EX data when SNP is enabled
crypto: ccp: Handle the legacy TMR allocation when SNP is enabled
x86/sev: Introduce an SNP leaked pages list
crypto: ccp: Provide an API to issue SEV and SNP commands
...
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