From: Andrey Pronin <apronin@chromium.org> To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Cc: Peter Huewe <peterhuewe@gmx.de>, Marcel Selhorst <tpmdd@selhorst.net>, Jason Gunthorpe <jgunthorpe@obsidianresearch.com>, tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Christophe Ricard <christophe.ricard@gmail.com>, dtor@chromium.org, smbarber@chromium.org, dianders@chromium.org, Andrey Pronin <apronin@chromium.org> Subject: [PATCH v3 2/2] tpm_tis_spi: add max xfer size Date: Wed, 27 Jul 2016 20:49:57 -0700 [thread overview] Message-ID: <1469677797-74304-3-git-send-email-apronin@chromium.org> (raw) In-Reply-To: <1469677797-74304-1-git-send-email-apronin@chromium.org> In-Reply-To: <1468546745-14646-1-git-send-email-apronin@chromium.org> Reject burstcounts larger than 64 bytes reported by tpm. SPI Hardware Protocol defined in section 6.4 of TCG PTP Spec supports up to 64 bytes of data in a transaction. Signed-off-by: Andrey Pronin <apronin@chromium.org> --- drivers/char/tpm/tpm_tis_spi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/tpm/tpm_tis_spi.c b/drivers/char/tpm/tpm_tis_spi.c index dbaad9c..b103373 100644 --- a/drivers/char/tpm/tpm_tis_spi.c +++ b/drivers/char/tpm/tpm_tis_spi.c @@ -206,6 +206,7 @@ static const struct tpm_tis_phy_ops tpm_spi_phy_ops = { .read16 = tpm_tis_spi_read16, .read32 = tpm_tis_spi_read32, .write32 = tpm_tis_spi_write32, + .max_xfer_size = MAX_SPI_FRAMESIZE, }; static int tpm_tis_spi_probe(struct spi_device *dev) -- 2.6.6
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Pronin <apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> To: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> Cc: Christophe Ricard <christophe.ricard-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, smbarber-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, dtor-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org Subject: [PATCH v3 2/2] tpm_tis_spi: add max xfer size Date: Wed, 27 Jul 2016 20:49:57 -0700 [thread overview] Message-ID: <1469677797-74304-3-git-send-email-apronin@chromium.org> (raw) In-Reply-To: <1469677797-74304-1-git-send-email-apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> In-Reply-To: <1468546745-14646-1-git-send-email-apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> Reject burstcounts larger than 64 bytes reported by tpm. SPI Hardware Protocol defined in section 6.4 of TCG PTP Spec supports up to 64 bytes of data in a transaction. Signed-off-by: Andrey Pronin <apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> --- drivers/char/tpm/tpm_tis_spi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/tpm/tpm_tis_spi.c b/drivers/char/tpm/tpm_tis_spi.c index dbaad9c..b103373 100644 --- a/drivers/char/tpm/tpm_tis_spi.c +++ b/drivers/char/tpm/tpm_tis_spi.c @@ -206,6 +206,7 @@ static const struct tpm_tis_phy_ops tpm_spi_phy_ops = { .read16 = tpm_tis_spi_read16, .read32 = tpm_tis_spi_read32, .write32 = tpm_tis_spi_write32, + .max_xfer_size = MAX_SPI_FRAMESIZE, }; static int tpm_tis_spi_probe(struct spi_device *dev) -- 2.6.6 ------------------------------------------------------------------------------
next prev parent reply other threads:[~2016-07-28 3:50 UTC|newest] Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-07-15 1:39 [PATCH 0/2] tpm: add optional max xfer size check Andrey Pronin 2016-07-15 1:39 ` [PATCH 1/2] tpm_tis_core: " Andrey Pronin 2016-07-15 3:13 ` Jason Gunthorpe 2016-07-15 3:13 ` Jason Gunthorpe 2016-07-15 3:25 ` Andrey Pronin 2016-07-15 3:48 ` Guenter Roeck 2016-07-18 18:53 ` Jarkko Sakkinen 2016-07-18 18:53 ` Jarkko Sakkinen 2016-07-15 1:39 ` [PATCH 2/2] tpm_tis_spi: add max xfer size Andrey Pronin 2016-07-15 1:39 ` Andrey Pronin 2016-07-20 2:34 ` [PATCH v2 0/2] tpm: add optional max xfer size check Andrey Pronin 2016-07-20 2:34 ` Andrey Pronin 2016-07-20 2:34 ` [PATCH v2 1/2] tpm_tis_core: " Andrey Pronin 2016-07-20 2:34 ` Andrey Pronin 2016-07-20 2:34 ` [PATCH v2 2/2] tpm_tis_spi: add max xfer size Andrey Pronin 2016-07-20 15:10 ` [PATCH v2 0/2] tpm: add optional max xfer size check Jarkko Sakkinen 2016-07-20 15:10 ` Jarkko Sakkinen 2016-07-28 3:49 ` [PATCH v3 " Andrey Pronin 2016-07-28 3:49 ` Andrey Pronin 2016-07-28 3:49 ` [PATCH v3 1/2] tpm_tis_core: " Andrey Pronin 2016-07-28 3:49 ` Andrey Pronin 2016-07-28 22:52 ` Dmitry Torokhov 2016-08-09 8:14 ` Jarkko Sakkinen 2016-08-09 8:14 ` Jarkko Sakkinen 2020-11-19 10:00 ` Dafna Hirschfeld 2020-11-20 15:15 ` Jarkko Sakkinen 2016-07-28 3:49 ` Andrey Pronin [this message] 2016-07-28 3:49 ` [PATCH v3 2/2] tpm_tis_spi: add max xfer size Andrey Pronin 2016-07-28 22:53 ` Dmitry Torokhov 2016-08-09 8:14 ` Jarkko Sakkinen 2016-08-09 8:14 ` Jarkko Sakkinen
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