Jie Deng 6852438e3a hv: Support concurrent split-lock emulation on SMP. ...

For a SMP guest, split-lock check may happen on
multiple vCPUs simultaneously. In this case, one
vCPU at most can be allowed running in the
split-lock emulation window. And if the vCPU is
doing the emulation, it should never be blocked
in the hypervisor, it should go back to the guest
to execute the lock instruction immediately and
trap back to the hypervisor with #DB to complete the
split-lock emulation.

Tracked-On: #5605
Signed-off-by: Jie Deng <jie.deng@intel.com>

2021-01-08 17:37:20 +08:00

..

x86

hv: Support concurrent split-lock emulation on SMP.

2021-01-08 17:37:20 +08:00