From: Yi Sun <[email protected]> Sent: Friday, September 21, 2018 12:25 AM > > Hyper-V may expose a HV_X64_MSR_GUEST_IDLE MSR. We can read > HYPERV_CPUID_FEATURES eax to check it. Read this MSR can > trigger the guest's transition to the idle power state which > can be exited by an IPI even if IF flag is disabled. > > Cc: "K. Y. Srinivasan" <[email protected]> > Cc: Haiyang Zhang <[email protected]> > Cc: Stephen Hemminger <[email protected]> > Signed-off-by: Yi Sun <[email protected]> > --- > arch/x86/include/asm/hyperv-tlfs.h | 5 +++++ > 1 file changed, 5 insertions(+) >
Reviewed-by: Michael Kelley <[email protected]>
