[PATCH V2 0/1] KVM: TDX: Decrease TDX VM shutdown time
From: Adrian Hunter
Date: Thu Apr 17 2025 - 09:20:13 EST
Hi
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