[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [tpmdd-devel] [PATCH] add tpm_xenu.ko: Xen Virtual TPM frontend driver
On Thu, Nov 8, 2012 at 9:36 AM, Fioravante, Matthew E. <Matthew.Fioravante@xxxxxxxxxx> wrote: >> >>> On 07.11.12 at 19:14, Matthew Fioravante <matthew.fioravante@xxxxxxxxxx> >> >>> wrote: >> > On 11/07/2012 09:46 AM, Kent Yoder wrote: >> >>> --- a/drivers/char/tpm/tpm.h >> >>> +++ b/drivers/char/tpm/tpm.h >> >>> @@ -130,6 +130,9 @@ struct tpm_chip { >> >>> >> >>> struct list_head list; >> >>> void (*release) (struct device *); >> >>> +#if CONFIG_XEN >> >>> + void *priv; >> >>> +#endif >> >> Can you use the chip->vendor.data pointer here instead? >> >> tpm_ibmvtpm is already using that as a priv pointer. I should >> >> probably change that name to make it more obvious what that's used for. >> > That makes more sense. I'm guessing your data pointer didn't exist >> > during the 2.6.18 kernel which is why they added their own priv pointer. >> >> It got introduced with 3.7-rc. >> >> >>> @@ -310,6 +313,18 @@ struct tpm_cmd_t { >> >>> >> >>> ssize_t tpm_getcap(struct device *, __be32, cap_t *, const char *); >> >>> >> >>> +#ifdef CONFIG_XEN >> >>> +static inline void *chip_get_private(const struct tpm_chip *chip) >> >>> +{ >> >>> + return chip->priv; >> >>> +} >> >>> + >> >>> +static inline void chip_set_private(struct tpm_chip *chip, void >> >>> +*priv) { >> >>> + chip->priv = priv; >> >>> +} >> >>> +#endif >> >> Can you put these in tpm_vtpm.c please? One less #define. :-) >> > Agreed, I'd rather not have to modify your shared tpm.h interface at all. >> >> Either such accessors should be defined here, for everyone to use (and >> tpm_ibmvtpm.c get changed accordingly), or the Xen code should access >> the field without wrappers too (for consistency). > > Agreed. I'll update tpm_ibmvtpm. > > Kent > > So what is the consensus, you're going to use accessors in ibmvtpm? I was > just about to remove them from my side. Yeah I'll use your accessor. Just modify it to use chip->vendor.data and I'll add suport to tpm_ibmvtpm after I integrate your patch. Thanks! Kent >> >> Jan >> > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxx > http://lists.xen.org/xen-devel > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_nov > _______________________________________________ > tpmdd-devel mailing list > tpmdd-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/tpmdd-devel -- IBM LTC Security _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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