Hi all, For people who concern this patchset, sorry for sending out late. And to save people's time, I didn't include the full coverletter here this time. For detailed information please refer to previous v13's coverletter[1]. This version mainly adds a new patch to handle TDX vs S3/hibernation interaction. In short, TDX cannot survive when platform goes to S3 and deeper states. TDX gets completely reset upon this, and both TDX guests and TDX module are destroyed. Please refer to the new patch (21). Other changes from v13 -> v14: - Addressed comments received in v13 (Rick/Nikolay/Dave). - SEAMCALL patches, skeleton patch, kexec patch - Some minor updates based on internal discussion. - Added received Reviewed-by tags (thanks!). - Updated the documentation patch to reflect new changes. Please see each individual patch for specific change history. Hi Dave, In this version all patches (except the documentation one) now have at least Kirill's Reviewed-by tag. Could you help to take a look? And again, thanks everyone for reviewing and helping on this series. [1]: v13 https://lore.kernel.org/lkml/cover.1692962263.git.kai.huang@xxxxxxxxx/T/ Kai Huang (23): x86/virt/tdx: Detect TDX during kernel boot x86/tdx: Define TDX supported page sizes as macros x86/virt/tdx: Make INTEL_TDX_HOST depend on X86_X2APIC x86/cpu: Detect TDX partial write machine check erratum x86/virt/tdx: Handle SEAMCALL no entropy error in common code x86/virt/tdx: Add SEAMCALL error printing for module initialization x86/virt/tdx: Add skeleton to enable TDX on demand x86/virt/tdx: Get information about TDX module and TDX-capable memory x86/virt/tdx: Use all system memory when initializing TDX module as TDX memory x86/virt/tdx: Add placeholder to construct TDMRs to cover all TDX memory regions x86/virt/tdx: Fill out TDMRs to cover all TDX memory regions x86/virt/tdx: Allocate and set up PAMTs for TDMRs x86/virt/tdx: Designate reserved areas for all TDMRs x86/virt/tdx: Configure TDX module with the TDMRs and global KeyID x86/virt/tdx: Configure global KeyID on all packages x86/virt/tdx: Initialize all TDMRs x86/kexec: Flush cache of TDX private memory x86/virt/tdx: Keep TDMRs when module initialization is successful x86/virt/tdx: Improve readability of module initialization error handling x86/kexec(): Reset TDX private memory on platforms with TDX erratum x86/virt/tdx: Handle TDX interaction with ACPI S3 and deeper states x86/mce: Improve error log of kernel space TDX #MC due to erratum Documentation/x86: Add documentation for TDX host support Documentation/arch/x86/tdx.rst | 217 +++- arch/x86/Kconfig | 3 + arch/x86/coco/tdx/tdx-shared.c | 6 +- arch/x86/include/asm/cpufeatures.h | 1 + arch/x86/include/asm/msr-index.h | 3 + arch/x86/include/asm/shared/tdx.h | 6 + arch/x86/include/asm/tdx.h | 39 + arch/x86/kernel/cpu/intel.c | 17 + arch/x86/kernel/cpu/mce/core.c | 33 + arch/x86/kernel/machine_kexec_64.c | 16 + arch/x86/kernel/process.c | 8 +- arch/x86/kernel/reboot.c | 15 + arch/x86/kernel/setup.c | 2 + arch/x86/virt/vmx/tdx/Makefile | 2 +- arch/x86/virt/vmx/tdx/tdx.c | 1587 ++++++++++++++++++++++++++++ arch/x86/virt/vmx/tdx/tdx.h | 145 +++ 16 files changed, 2084 insertions(+), 16 deletions(-) create mode 100644 arch/x86/virt/vmx/tdx/tdx.c create mode 100644 arch/x86/virt/vmx/tdx/tdx.h base-commit: 9ee4318c157b9802589b746cc340bae3142d984c -- 2.41.0
