The patchset adds the Hyper-V specific code so that a TDX guest can run on Hyper-V. Please review. This v5 patchset is based on Michael Kelley's v7 DDA patchset: https://github.com/kelleymh/linux/commits/v7 Some of Michael's patches are in tip.git, and the others are in Hyper-V tree. This v5 patchset addressed the comments from Kirill and and Michael: 1. Added Michael's Reviewed-by to all the 6 patches except for patch 5. 2. Added Kirill's Signed-off-by to patch 2. 3. Improved the error handling in hv_synic_alloc() and hv_synic_free(). Please see each patch's log message for the changes. @x86 maintainers: Can you please take patch 1 and 2? They can apply cleanly to the tip.git tree's branch x86/tdx. @Michael Kelley: Can you please review patch 5? @Wei Liu: Patch 3, 4, 5, 6 need to go through the Hyper-V tree's hyperv-next branch because they're based on Michael Kelley's DDA patches. The 4 patches can apply cleanly to hyperv-next. If you want to view the patches on github, it is in this branch: https://github.com/dcui/tdx/commits/decui/michaelv7dda/tdx/v5 FYI, v1-v4 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/ 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 | 54 ++++++++++++- drivers/hv/hv_common.c | 30 +++++++ include/asm-generic/mshyperv.h | 1 + 10 files changed, 289 insertions(+), 37 deletions(-) -- 2.25.1
