linux

iv/linux

History

Linus Torvalds b4442cadca - Add support managing TDX host hardware

-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEV76QKkVc4xCGURexaDWVMHDJkrAFAmWfCRQACgkQaDWVMHDJ
 krDUqQ//VCvkpf0mAbYDJa1oTXFW8O5cVTusBtPi8k7cFbtjQpjno/9AqKol+sK8
 AKg+y5iHHl7QJmDmEcpS+O9OBbmFOpvDzm3QZhk8RkWS5pe0B108dnINYtS0eP9R
 MkzZwfrI2yC6NX4hvHGdD8WGHjrt+oxY0bojehX87JZsyRU+xqc/g1OO7a5bUPQe
 3Ip0kKiCeqFv0y+Q1pFMEd9RdZ8XxqzUHCJT3hfgZ6FajJ2eVy6jNrPOm6LozycB
 eOtYYNapSgw3k/WhJCOYWHX7kePXibLxBRONLpi6P3U6pMVk4n8wrgl7qPtdW1Qx
 nR2UHX5P6eFkxNCuU1BzvmPBROe37C51MFVw29eRnigvuX3j/vfCH1+17xQOVKVv
 5JyxYA0rJWqoOz6mX7YaNJHlmrxHzeKXudICyOFuu1j5c8CuGjh8NQsOSCq16XfZ
 hPzfYDUS8I7/kHYQPJlnB+kF9pmbyjTM70h74I8D6ZWvXESHJZt+TYPyWfkBXP/P
 L9Pwx1onAyoBApGxCWuvgGTLonzNredgYG4ABbqhUqxqncJS9M7Y/yJa+f+3SOkR
 T6LxoByuDVld5cIfbOzRwIaRezZDe/NL7rkHm/DWo98OaV3zILsr20Hx1lPZ1Vce
 ryZ9lCdZGGxm2jmpzr/VymPQz/E+ezahRHE1+F3su8jpCU41txg=
 =1EJI
 -----END PGP SIGNATURE-----

Merge tag 'x86_tdx_for_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 TDX updates from Dave Hansen:
 "This contains the initial support for host-side TDX support so that
  KVM can run TDX-protected guests. This does not include the actual
  KVM-side support which will come from the KVM folks. The TDX host
  interactions with kexec also needs to be ironed out before this is
  ready for prime time, so this code is currently Kconfig'd off when
  kexec is on.

  The majority of the code here is the kernel telling the TDX module
  which memory to protect and handing some additional memory over to it
  to use to store TDX module metadata. That sounds pretty simple, but
  the TDX architecture is rather flexible and it takes quite a bit of
  back-and-forth to say, "just protect all memory, please."

  There is also some code tacked on near the end of the series to handle
  a hardware erratum. The erratum can make software bugs such as a
  kernel write to TDX-protected memory cause a machine check and
  masquerade as a real hardware failure. The erratum handling watches
  out for these and tries to provide nicer user errors"

* tag 'x86_tdx_for_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  x86/virt/tdx: Make TDX host depend on X86_MCE
  x86/virt/tdx: Disable TDX host support when kexec is enabled
  Documentation/x86: Add documentation for TDX host support
  x86/mce: Differentiate real hardware #MCs from TDX erratum ones
  x86/cpu: Detect TDX partial write machine check erratum
  x86/virt/tdx: Handle TDX interaction with sleep and hibernation
  x86/virt/tdx: Initialize all TDMRs
  x86/virt/tdx: Configure global KeyID on all packages
  x86/virt/tdx: Configure TDX module with the TDMRs and global KeyID
  x86/virt/tdx: Designate reserved areas for all TDMRs
  x86/virt/tdx: Allocate and set up PAMTs for TDMRs
  x86/virt/tdx: Fill out TDMRs to cover all TDX memory regions
  x86/virt/tdx: Add placeholder to construct TDMRs to cover all TDX memory regions
  x86/virt/tdx: Get module global metadata for module initialization
  x86/virt/tdx: Use all system memory when initializing TDX module as TDX memory
  x86/virt/tdx: Add skeleton to enable TDX on demand
  x86/virt/tdx: Add SEAMCALL error printing for module initialization
  x86/virt/tdx: Handle SEAMCALL no entropy error in common code
  x86/virt/tdx: Make INTEL_TDX_HOST depend on X86_X2APIC
  x86/virt/tdx: Define TDX supported page sizes as macros
  ...

2024-01-18 13:41:48 -08:00

i386

…

x86_64

…

amd_hsmp.rst

platform/x86/amd/hsmp: add support for metrics tbl

2023-10-12 16:29:58 +03:00

amd-memory-encryption.rst

x86/sev/docs: Update document URL in amd-memory-encryption.rst

2023-09-22 11:29:23 +02:00

boot.rst