This is a BIOS issue + kernel ACPI platform driver refusing to handle
overlapping memory space. The issue here is that the ACPI platform driver is
not created, however this should not prevent the tpm_crb driver from working
as it registers directly the ACPI device. For now you can suppress the message
by adding the device in forbidden_id_list in drivers/acpi/acpi_platform.c
I’m already testing a fixed BIOS, not sure whether and when it will be
available for your particular device.
Thanks
Tomas
From: Davide Guerri [mailto:davide.gue...@gmail.com]
Sent: Thursday, February 16, 2017 20:40
To: Jason Gunthorpe <jguntho...@obsidianresearch.com>
Cc: tpmdd-devel@lists.sourceforge.net
Subject: Re: [tpmdd-devel] Intel NUC and fTPM issue on 4.9.2
Sorry I missed 1 line:
[20417.678952] ACPI resource is [mem 0xfed40000-0xfed4087f flags 0x200]
[20417.678975] map request is is [mem 0xfed40040-0xfed4006f flags 0x200]
[20417.678990] map request is is [mem 0xfed40080-0xfed40fff flags 0x200]
[20417.678996] tpm_crb MSFT0101:00: can't request region for resource [mem
0xfed40080-0xfed40fff]
[20417.688797] tpm_crb: probe of MSFT0101:00 failed with error -16
On 16 February 2017 at 18:39, Davide Guerri
<davide.gue...@gmail.com<mailto:davide.gue...@gmail.com>> wrote:
[20417.678975] map request is is [mem 0xfed40040-0xfed4006f flags 0x200]
[20417.678990] map request is is [mem 0xfed40080-0xfed40fff flags 0x200]
[20417.678996] tpm_crb MSFT0101:00: can't request region for resource [mem
0xfed40080-0xfed40fff]
[20417.688797] tpm_crb: probe of MSFT0101:00 failed with error -16
On 16 February 2017 at 18:26, Davide Guerri
<davide.gue...@gmail.com<mailto:davide.gue...@gmail.com>> wrote:
No lines including the requested range:
fed10000-fed17fff : pnp 00:06
fed18000-fed18fff : pnp 00:06
fed19000-fed19fff : pnp 00:06
fed20000-fed3ffff : pnp 00:06
fed40000-fed4087f : MSFT0101:00
fed45000-fed8ffff : pnp 00:06
fed90000-fed93fff : pnp 00:06
fee00000-fee00fff : Local APIC
This is the NUC I am using, if that can be useful.
root@vhsv1:~# cat /sys/class/dmi/id/board_name /sys/class/dmi/id/board_version
NUC6i7KYB
H90766-404
I am compiling the module right as we speak, I will get back to you soon.
On 16 February 2017 at 18:19, Jason Gunthorpe
<jguntho...@obsidianresearch.com<mailto:jguntho...@obsidianresearch.com>> wrote:
On Thu, Feb 16, 2017 at 06:10:43PM +0000, Davide Guerri wrote:
> Hey thanks for the prompt reply.
> I think you are interested in this:
> fed40000-fed4087f : MSFT0101:00
Are there more lines below that?
Can you apply this patch and report what the results are?
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index a7c870af916c3d..acc54a03d6025d 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -233,6 +233,8 @@ static void __iomem *crb_map_res(struct device *dev, struct
crb_priv *priv,
.flags = IORESOURCE_MEM,
};
+ printk("map request is is %pr\n",&new_res);
+
/* Detect a 64 bit address on a 32 bit system */
if (start != new_res.start)
return (void __iomem *) ERR_PTR(-EINVAL);
@@ -267,6 +269,8 @@ static int crb_map_io(struct acpi_device *device, struct
crb_priv *priv,
return -EINVAL;
}
+ printk("ACPI resource is %pr\n",&io_res);
+
priv->iobase = devm_ioremap_resource(dev, &io_res);
if (IS_ERR(priv->iobase))
return PTR_ERR(priv->iobase);
--
[Davide Guerri on about.me]
Davide Guerri
about.me/davide_guerri
--
[Davide Guerri on about.me]
Davide Guerri
about.me/davide_guerri
--
[Davide Guerri on about.me]
Davide Guerri
about.me/davide_guerri
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