[0/2] LoongArch: Add steal time support

Message

bibo mao March 26, 2024, 8:06 a.m. UTC

Para-virt feature steal time is added in both kvm and guest kernel side.
It is silimar with other architectures, steal time structure comes from
guest memory, also pseduo register is used to save/restore base address
of steal time structure, so that vm migration is supported also.

Bibo Mao (2):
  LoongArch: KVM: Add steal time support in kvm side
  LoongArch: Add steal time support in guest side

 arch/loongarch/include/asm/kvm_host.h  |   7 ++
 arch/loongarch/include/asm/kvm_para.h  |  10 ++
 arch/loongarch/include/asm/loongarch.h |   1 +
 arch/loongarch/include/asm/paravirt.h  |   5 +
 arch/loongarch/include/uapi/asm/kvm.h  |   4 +
 arch/loongarch/kernel/paravirt.c       | 130 +++++++++++++++++++++++++
 arch/loongarch/kernel/time.c           |   2 +
 arch/loongarch/kvm/exit.c              |  35 ++++++-
 arch/loongarch/kvm/vcpu.c              | 120 +++++++++++++++++++++++
 9 files changed, 309 insertions(+), 5 deletions(-)


base-commit: 2ac2b1665d3fbec6ca709dd6ef3ea05f4a51ee4c