The patchset adds the Hyper-V specific code so that a TDX guest can run on Hyper-V. Please review. The v6 patchset is based on today's mainline (a1fd058b07d5). The v6 patchset addressed Michael's comments on patch 5: Removed 2 unnecessary lines of messages from the commit log. Fixed the error handling path for hv_synic_alloc()/free(). Printed the 'ret' in hv_synic_alloc()/free(). @Michael Kelley: Can you please review patch 5? @x86 maintainers: If the patches look good to you, can you please take patch 1 and 2 into the tip tree? @Wei Liu: I think patch 3, 4, 5, 6 should go through the Hyper-V tree since they change the Hyper-V code. If you want to view the patches on github, it is here: https://github.com/dcui/tdx/commits/decui/mainline/v6 FYI, v1-v5 are here: https://lwn.net/ml/linux-kernel/20221121195151.21812-1-decui@xxxxxxxxxxxxx/ https://lwn.net/ml/linux-kernel/20221207003325.21503-7-decui@xxxxxxxxxxxxx/ https://lwn.net/ml/linux-kernel/20230206192419.24525-1-decui@xxxxxxxxxxxxx/ https://lwn.net/ml/linux-kernel/20230408204759.14902-6-decui@xxxxxxxxxxxxx/ https://lwn.net/ml/linux-kernel/20230422021735.27698-1-decui@xxxxxxxxxxxxx/ Thanks, Dexuan Dexuan Cui (6): x86/tdx: Retry TDVMCALL_MAP_GPA() when needed x86/tdx: Support vmalloc() for tdx_enc_status_changed() x86/hyperv: Add hv_isolation_type_tdx() to detect TDX guests x86/hyperv: Support hypercalls for TDX guests Drivers: hv: vmbus: Support TDX guests x86/hyperv: Fix serial console interrupts for TDX guests arch/x86/coco/tdx/tdx.c | 122 ++++++++++++++++++++++------- arch/x86/hyperv/hv_apic.c | 6 +- arch/x86/hyperv/hv_init.c | 27 ++++++- arch/x86/hyperv/ivm.c | 20 +++++ arch/x86/include/asm/hyperv-tlfs.h | 3 +- arch/x86/include/asm/mshyperv.h | 20 +++++ arch/x86/kernel/cpu/mshyperv.c | 43 ++++++++++ drivers/hv/hv.c | 65 ++++++++++++++- drivers/hv/hv_common.c | 30 +++++++ include/asm-generic/mshyperv.h | 1 + 10 files changed, 300 insertions(+), 37 deletions(-) -- 2.25.1