On Tue, 12 Jun 2018 02:59:11 +0000 Bharat Bhushan <bharat.bhus...@nxp.com> wrote:
> Hi Diana, > > > -----Original Message----- > > From: Diana Craciun [mailto:diana.crac...@nxp.com] > > Sent: Monday, June 11, 2018 6:23 PM > > To: linuxppc-dev@lists.ozlabs.org > > Cc: m...@ellerman.id.au; o...@buserror.net; Leo Li > > <leoyang...@nxp.com>; Bharat Bhushan <bharat.bhus...@nxp.com>; > > Diana Madalina Craciun <diana.crac...@nxp.com> > > Subject: [PATCH v2 3/3] powerpc/fsl: Implement > > cpu_show_spectre_v1/v2 for NXP PowerPC Book3E > > Please add some description To me the subject is self-explanatory. It implements a kernel interface that was already described elsewhere. What are you missing here? Thanks Michal > > > > > Signed-off-by: Diana Craciun <diana.crac...@nxp.com> > > --- > > arch/powerpc/Kconfig | 2 +- > > arch/powerpc/kernel/security.c | 15 +++++++++++++++ > > 2 files changed, 16 insertions(+), 1 deletion(-) > > > > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index > > 940c955..a781d60 100644 > > --- a/arch/powerpc/Kconfig > > +++ b/arch/powerpc/Kconfig > > @@ -170,7 +170,7 @@ config PPC > > select GENERIC_CLOCKEVENTS_BROADCAST if SMP > > select GENERIC_CMOS_UPDATE > > select GENERIC_CPU_AUTOPROBE > > - select GENERIC_CPU_VULNERABILITIES if PPC_BOOK3S_64 > > + select GENERIC_CPU_VULNERABILITIES if PPC_BOOK3S_64 > > || PPC_FSL_BOOK3E > > select GENERIC_IRQ_SHOW > > select GENERIC_IRQ_SHOW_LEVEL > > select GENERIC_SMP_IDLE_THREAD > > diff --git a/arch/powerpc/kernel/security.c > > b/arch/powerpc/kernel/security.c index 797c975..aceaadc 100644 > > --- a/arch/powerpc/kernel/security.c > > +++ b/arch/powerpc/kernel/security.c > > @@ -183,3 +183,18 @@ ssize_t cpu_show_spectre_v2(struct device *dev, > > struct device_attribute *attr, c } #endif /* CONFIG_PPC_BOOK3S_64 > > */ > > > > +#ifdef CONFIG_PPC_FSL_BOOK3E > > +ssize_t cpu_show_spectre_v1(struct device *dev, struct > > device_attribute +*attr, char *buf) { > > + if (barrier_nospec_enabled) > > + return sprintf(buf, "Mitigation: __user pointer > > sanitization\n"); + > > + return sprintf(buf, "Vulnerable\n"); > > +} > > + > > +ssize_t cpu_show_spectre_v2(struct device *dev, struct > > device_attribute +*attr, char *buf) { > > + return sprintf(buf, "Vulnerable\n"); > > +} > > +#endif /* CONFIG_PPC_FSL_BOOK3E */ > > + > > -- > > 2.5.5 >
