On Fri, Jul 14, 2017 at 06:13:58PM +0200, Cédric Le Goater wrote: > But when a guest initializes radix mode, it issues a H_REGISTER_PROC_TBL > to update the LPCR of all CPUs. Hot-plugged CPUs inherit from the same > setting under KVM but not under TCG. So, Let's check for radix and update > the default LPCR to keep new CPUs in sync. > > Signed-off-by: Cédric Le Goater <c...@kaod.org>
Applied to ppc-for-2.10, thanks.
> ---
> target/ppc/translate_init.c | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/target/ppc/translate_init.c b/target/ppc/translate_init.c
> index 8b9807665dd5..8776e9b0f8fa 100644
> --- a/target/ppc/translate_init.c
> +++ b/target/ppc/translate_init.c
> @@ -9014,8 +9014,16 @@ void cpu_ppc_set_papr(PowerPCCPU *cpu,
> PPCVirtualHypervisor *vhyp)
> /* By default we choose legacy mode and switch to new hash or radix
> * when a register process table hcall is made. So disable process
> * tables and guest translation shootdown by default
> + *
> + * Hot-plugged CPUs inherit from the guest radix setting under
> + * KVM but not under TCG. Update the default LPCR to keep new
> + * CPUs in sync when radix is enabled.
> */
> - lpcr->default_value &= ~(LPCR_UPRT | LPCR_GTSE);
> + if (ppc64_radix_guest(cpu)) {
> + lpcr->default_value |= LPCR_UPRT | LPCR_GTSE;
> + } else {
> + lpcr->default_value &= ~(LPCR_UPRT | LPCR_GTSE);
> + }
> lpcr->default_value |= LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE |
> LPCR_OEE;
> break;
--
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
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