On Wed, Feb 21, 2018 at 1:41 PM, Paolo Bonzini <[email protected]> wrote: > Having a paravirt indirect call in the IBRS restore path is not a > good idea, since we are trying to protect from speculative execution > of bogus indirect branch targets. It is also slower, so use > native_wrmsrl on the vmentry path too. > > Fixes: d28b387fb74da95d69d2615732f50cceb38e9a4d > Cc: [email protected] > Cc: Radim Krčmář <[email protected]> > Cc: KarimAllah Ahmed <[email protected]> > Cc: David Woodhouse <[email protected]> > Cc: Jim Mattson <[email protected]> > Cc: Thomas Gleixner <[email protected]> > Cc: Ingo Molnar <[email protected]> > Cc: [email protected] > Signed-off-by: Paolo Bonzini <[email protected]>
Seems like there ought to be a native_rdmsrl, but otherwise this looks fine. Reviewed-by: Jim Mattson <[email protected]>
