On Tue, Jul 2, 2019 at 8:20 AM Alistair Francis <alistai...@gmail.com> wrote: > > On Mon, Jul 1, 2019 at 8:56 AM <jonat...@fintelia.io> wrote: > > > > From: Jonathan Behrens <jonat...@fintelia.io> > > > > QEMU currently always triggers an illegal instruction exception when > > code attempts to read the time CSR. This is valid behavor, but only if > > the TM bit in mcounteren is hardwired to zero. This change also > > corrects mcounteren and scounteren CSRs to be 32-bits on both 32-bit > > and 64-bit targets. > > > > Signed-off-by: Jonathan Behrens <jonat...@fintelia.io> > > Reviewed-by: Alistair Francis <alistair.fran...@wdc.com> >
I am a little bit lost here. I think we agreed to allow directly read to time CSR when mcounteren.TM is set, no? Regards, Bin
