user/sven/linux.git/drivers/firmware, branch v3.0.50

firmware: Add missing attributes to EFI variable attribute print out from sysfs

2012-10-07T15:27:25Z

commit 7083909023bbe29b3176e92d2d089def1aa7aa1e upstream. Some of the EFI variable attributes are missing from print out from /sys/firmware/efi/vars/*/attributes. This patch adds those in. It also updates code to use pre-defined constants for masking current value of attributes. Signed-off-by: Khalid Aziz Reviewed-by: Kees Cook Acked-by: Matthew Garrett Signed-off-by: Greg Kroah-Hartman

dmi: Feed DMI table to /dev/random driver

2012-08-15T19:04:29Z

commit d114a33387472555188f142ed8e98acdb8181c6d upstream. Send the entire DMI (SMBIOS) table to the /dev/random driver to help seed its pools. Signed-off-by: Tony Luck Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman

pcdp: use early_ioremap/early_iounmap to access pcdp table

2012-08-15T19:04:10Z

commit 6c4088ac3a4d82779903433bcd5f048c58fb1aca upstream. efi_setup_pcdp_console() is called during boot to parse the HCDP/PCDP EFI system table and setup an early console for printk output. The routine uses ioremap/iounmap to setup access to the HCDP/PCDP table information. The call to ioremap is happening early in the boot process which leads to a panic on x86_64 systems: panic+0x01ca do_exit+0x043c oops_end+0x00a7 no_context+0x0119 __bad_area_nosemaphore+0x0138 bad_area_nosemaphore+0x000e do_page_fault+0x0321 page_fault+0x0020 reserve_memtype+0x02a1 __ioremap_caller+0x0123 ioremap_nocache+0x0012 efi_setup_pcdp_console+0x002b setup_arch+0x03a9 start_kernel+0x00d4 x86_64_start_reservations+0x012c x86_64_start_kernel+0x00fe This replaces the calls to ioremap/iounmap in efi_setup_pcdp_console() with calls to early_ioremap/early_iounmap which can be called during early boot. This patch was tested on an x86_64 prototype system which uses the HCDP/PCDP table for early console setup. Signed-off-by: Greg Pearson Acked-by: Khalid Aziz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

efivars: Improve variable validation

2012-05-07T15:56:38Z

commit 54b3a4d311c98ad94b737802a8b5f2c8c6bfd627 upstream. Ben Hutchings pointed out that the validation in efivars was inadequate - most obviously, an entry with size 0 would server as a DoS against the kernel. Improve this based on his suggestions. Signed-off-by: Matthew Garrett Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

efi: Validate UEFI boot variables

2012-05-07T15:56:38Z

commit fec6c20b570bcf541e581fc97f2e0cbdb9725b98 upstream. A common flaw in UEFI systems is a refusal to POST triggered by a malformed boot variable. Once in this state, machines may only be restored by reflashing their firmware with an external hardware device. While this is obviously a firmware bug, the serious nature of the outcome suggests that operating systems should filter their variable writes in order to prevent a malicious user from rendering the machine unusable. Signed-off-by: Matthew Garrett Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

efivars: fix warnings when CONFIG_PSTORE=n

2012-05-07T15:56:38Z

commit b728a5c806fb36f9adebf2a862bbd015e074afca upstream. drivers/firmware/efivars.c:161: warning: ‘utf16_strlen’ defined but not used utf16_strlen() is only used inside CONFIG_PSTORE - make this "static inline" to shut the compiler up [thanks to hpa for the suggestion]. drivers/firmware/efivars.c:602: warning: initialization from incompatible pointer type Between v1 and v2 of this patch series we decided to make the "part" number unsigned - but missed fixing the stub version of efi_pstore_write() Acked-by: Matthew Garrett Acked-by: Mike Waychison Signed-off-by: Tony Luck [took the static part of the patch, not the pstore part, for 3.0-stable, to fix the compiler warning we had - gregkh] Signed-off-by: Greg Kroah-Hartman

efivars: String functions

2012-05-07T15:56:38Z

commit a2940908391f3cee72e38769b30e829b22742b5b upstream. Fix the string functions in the efivars driver to be called utf16_* instead of utf8_* as the encoding is utf16, not utf8. As well, rename utf16_strlen to utf16_strnlen as it takes a maxlength argument and the name should be consistent with the standard C function names. utf16_strlen is still provided for convenience in a subsequent patch. Signed-off-by: Mike Waychison Signed-off-by: Tony Luck Signed-off-by: Greg Kroah-Hartman

ibft: Fix finding IBFT ACPI table on UEFI

2011-12-21T20:57:45Z

commit 935a9fee51c945b8942be2d7b4bae069167b4886 upstream. Found one system with UEFI/iBFT, kernel does not detect the iBFT during iscsi_ibft module loading. Root cause: on x86 (UEFI), we are calling of find_ibft_region() much earlier - specifically in setup_arch() before ACPI is enabled. Try to split acpi checking code out and call that later At that time ACPI iBFT already get permanent mapped with ioremap. So isa_virt_to_bus() will get wrong phys from right virt address. We could just skip that phys address printing. For legacy one, print the found address early. -v2: update comments and description according to Konrad. -v3: fix problem about module use case that is found by Konrad. -v4: use acpi_get_table() instead of acpi_table_parse() to handle module use case that is found by Konrad again.. Signed-off-by: Yinghai Lu Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Greg Kroah-Hartman

firmware: Sigma: Fix endianess issues

2011-12-09T16:52:39Z

commit bda63586bc5929e97288cdb371bb6456504867ed upstream. Currently the SigmaDSP firmware loader only works correctly on little-endian systems. Fix this by using the proper endianess conversion functions. Signed-off-by: Lars-Peter Clausen Acked-by: Mike Frysinger Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

firmware: Sigma: Skip header during CRC generation

2011-12-09T16:52:39Z

commit c56935bdc0a8edf50237d3b0205133a5b0adc604 upstream. The firmware header is not part of the CRC, so skip it. Otherwise the firmware will be rejected due to non-matching CRCs. Signed-off-by: Lars-Peter Clausen Acked-by: Mike Frysinger Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman