On Wed, Aug 12, 2020 at 02:33:33PM -0700, Richard Henderson wrote: > On 8/11/20 8:32 AM, Gustavo Romero wrote: > > Currently if option '-icount auto' is passed to the QEMU TCG to enable > > counting instructions the VM crashes with the following error report when > > Linux runs on it: > > > > qemu-system-ppc64: Bad icount read > > > > This happens because read/write access to the SPRs PURR, VTB, and TBU40 > > is not integrated to the icount framework. > > > > This commit fixes that issue by making the read/write access of these > > SPRs aware of icount framework, adding the proper gen_io_start() calls > > before calling the helpers to load/store these SPRs in TCG and ensuring > > that the associated TBs end immediately after, accordingly to what's in > > docs/devel/tcg-icount.rst. > > > > Signed-off-by: Gustavo Romero <grom...@linux.ibm.com> > > --- > > target/ppc/translate_init.inc.c | 30 ++++++++++++++++++++++++++++++ > > 1 file changed, 30 insertions(+) > > Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Applied to ppc-for-5.2, thanks.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
signature.asc
Description: PGP signature
