On Wed, 25 Sep 2013 14:10:27 +0200 Laurent Dufour <lduf...@linux.vnet.ibm.com> wrote: > Follow-up to Anton's H_SET_MODE patch, the host should be taken aware of > guest endianess change. > > The hcall H_SET_MODE is processed in kvm then in the host. > > Signed-off-by: Laurent Dufour <lduf...@linux.vnet.ibm.com>
Tested-by: Greg Kurz <gk...@linux.vnet.ibm.com> > --- > arch/powerpc/kvm/book3s_hv.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c > index 998cad3..4a47c74 100644 > --- a/arch/powerpc/kvm/book3s_hv.c > +++ b/arch/powerpc/kvm/book3s_hv.c > @@ -599,6 +599,14 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu) > kvmppc_get_gpr(vcpu, 5), > kvmppc_get_gpr(vcpu, 6), > kvmppc_get_gpr(vcpu, 7)); > + /* > + * If the hcall succeeded, we propagate it to the host. > + * This way, it will be aware of the endianess's change too. > + * The assumption is made that the hcall will succeed in the > + * host. Hmmm... Not sure the last sentence is appropriate from a kernel perspective: it is up to the userland code to remain consistent with this endianess change. > + */ > + if (ret == H_SUCCESS) > + return RESUME_HOST; > break; > > case H_XIRR: > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev > -- Gregory Kurz kurzg...@fr.ibm.com gk...@linux.vnet.ibm.com Software Engineer @ IBM/Meiosys http://www.ibm.com Tel +33 (0)562 165 496 "Anarchy is about taking complete responsibility for yourself." Alan Moore. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
