Hi
Changes in V3:
Refer:
https://lore.kernel.org/r/aAL4dT1pWG5dDDeo@xxxxxxxxxx
Remove KVM_BUG_ON() from tdx_mmu_release_hkid() because it would
trigger on the error path from __tdx_td_init()
Put cpus_read_lock() handling back into tdx_mmu_release_hkid()
Handle KVM_TDX_TERMINATE_VM in the switch statement, i.e. let
tdx_vm_ioctl() deal with kvm->lock
The version 1 RFC:
https://lore.kernel.org/all/20250313181629.17764-1-adrian.hunter@xxxxxxxxx/
listed 3 options and implemented option 2. Sean replied with code for
option 1, which tested out OK, so here it is plus a commit log.
It depends upon kvm_trylock_all_vcpus(kvm) which is the assumed result
of Maxim's work-in-progress here:
https://lore.kernel.org/all/20250409014136.2816971-1-mlevitsk@xxxxxxxxxx/
Note it is assumed that kvm_trylock_all_vcpus(kvm) follows the return value
semantics of mutex_trylock() i.e. 1 means locks have been successfully
acquired, 0 means not succesful.
Sean Christopherson (1):
KVM: TDX: Add sub-ioctl KVM_TDX_TERMINATE_VM
Documentation/virt/kvm/x86/intel-tdx.rst | 16 ++++++++
arch/x86/include/uapi/asm/kvm.h | 1 +
arch/x86/kvm/vmx/tdx.c | 63 ++++++++++++++++++++++----------
3 files changed, 61 insertions(+), 19 deletions(-)
Regards
Adrian
