the efi_lookup_mapped_addr() function out of x86
and places it in global efi.c, for shared use with future ARM
patches.
IA64 code compile tested only.
Leif Lindholm (5):
ia64: add early_memremap() alias for early_ioremap()
efi: provide a generic efi_config_init()
efi: x86: use common code for (U)EFI
Common to (U)EFI support on all platforms is the global efi data
structure, and the code that parses the System Table to locate
addresses to populate that structure with.
This patch adds both of these to the global EFI driver code.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
This patch makes ia64 use the new common code for configuration table
scanning. It also removes the local definition of the global efi
data structure.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/ia64/kernel/efi.c | 54 ++--
1 file
efi_lookup_mapped_addr() is a handy utility for other platforms than
x86. Move it from arch/x86 to drivers/firmware. Add memmap pointer
to global efi structure, and initialise it on x86.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c | 30
This patch makes x86 use the new common code for configuration table
scanning. It also removes the local definition of the global efi
data structure.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c | 96 ---
1 file
early_ioremap() on IA64 chooses its mapping type based on the EFI
memory map. This patch adds an alias early_memremap() to be used
where the targeted location is memory rather than an i/o device.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/ia64/include/asm/io.h |1 +
1
On Mon, Aug 05, 2013 at 03:11:49PM +0100, Dave Martin wrote:
diff --git a/arch/arm/boot/compressed/head.S
b/arch/arm/boot/compressed/head.S
index 75189f1..4c70b9e 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -122,19 +122,106 @@
On Mon, Aug 05, 2013 at 01:15:40PM +0100, Matt Fleming wrote:
+static __init int match_config_table(efi_guid_t *guid,
+unsigned long table,
+efi_config_table_type_t *table_types)
+{
+ u8 str[38];
Shouldn't this be 37?
On Wed, Aug 07, 2013 at 07:05:54PM +0100, Dave Martin wrote:
Is it possible for this allocation to fail -- i.e., because UEFI has
put us in an unsuitable location which is within the first 128MB of
RAM, such that we can't pick a suitable location without overlap?
For the time being though, I
early_ioremap() on IA64 chooses its mapping type based on the EFI
memory map. This patch adds an alias early_memremap() to be used
where the targeted location is memory rather than an i/o device.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Tony Luck tony.l...@intel.com
efi_lookup_mapped_addr() is a handy utility for other platforms than
x86. Move it from arch/x86 to drivers/firmware. Add memmap pointer
to global efi structure, and initialise it on x86.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c | 30
the efi_lookup_mapped_addr() function out of x86
and places it in global efi.c, for shared use with future ARM
patches.
IA64 code compile tested only.
Leif Lindholm (5):
ia64: add early_memremap() alias for early_ioremap()
efi: provide a generic efi_config_init()
efi: x86: use common code for (U)EFI
This patch makes ia64 use the new common code for configuration table
scanning. It also removes the local definition of the global efi
data structure.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Tony Luck tony.l...@intel.com
---
arch/ia64/kernel/efi.c | 54
This patch makes x86 use the new common code for configuration table
scanning. It also removes the local definition of the global efi
data structure.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c | 96 ---
1 file
Common to (U)EFI support on all platforms is the global efi data
structure, and the code that parses the System Table to locate
addresses to populate that structure with.
This patch adds both of these to the global EFI driver code.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
On Fri, Sep 06, 2013 at 05:14:49PM +0100, Catalin Marinas wrote:
On Fri, Sep 06, 2013 at 10:19:18AM +0100, Leif Lindholm wrote:
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -877,6 +878,10 @@ void __init setup_arch(char **cmdline_p)
parse_early_param
the efi_lookup_mapped_addr() function out of x86
and places it in global efi.c, for shared use with future ARM
patches.
IA64 code compile tested only.
Pardon the delay in getting this out - back to back conferences
followed by a bad case of the man flu.
Leif Lindholm (4):
efi: provide a generic efi_config_init
This patch makes x86 use the new common code for EFI configuration
table scanning. It also removes the local definition of the global
efi data structure.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c | 96 ---
1
efi_lookup_mapped_addr() is a handy utility for other platforms
than x86. Move it from arch/x86 to drivers/firmware/efi.
This function will be used by future ARM patches.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c | 28
in the series.
Note: use of early_memremap() instead of early_ioremap() for better
semantic match for ARM support.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
drivers/firmware/efi/efi.c | 106
include/linux/efi.h|7 +++
2
type of mapping anyway.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/ia64/include/asm/io.h |1 +
arch/ia64/kernel/efi.c | 54 +---
2 files changed, 12 insertions(+), 43 deletions(-)
diff --git a/arch/ia64/include/asm/io.h b/arch
On Tue, Jul 30, 2013 at 10:53:10AM -0700, Tony Luck wrote:
On Tue, Jul 30, 2013 at 9:47 AM, Leif Lindholm leif.lindh...@linaro.org
wrote:
+ /*
+* Let's see what config tables the firmware passed to us.
+*/
+ config_tables = early_mememap(efi.systab-tables
On Wed, Jul 31, 2013 at 09:58:20AM +0100, Matt Fleming wrote:
On 07/30/2013 05:47 PM, Leif Lindholm wrote:
efi_lookup_mapped_addr() is a handy utility for other platforms
than x86. Move it from arch/x86 to drivers/firmware/efi.
This function will be used by future ARM patches
On Mon, Nov 04, 2013 at 08:41:11PM +, Stefano Stabellini wrote:
multiboot2 protocol requires some more changes. However, about 80% of code
is ready. In this case Xen and modules are loaded by GRUB2 itself. It means
that all images could be placed on any filesystem recognized by GRUB2.
-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Rob Landley r...@landley.net
---
Documentation/arm/00-INDEX |2 ++
Documentation/arm/early_ioremap.txt | 23 +++
2 files changed, 25 insertions(+)
create mode 100644 Documentation/arm/early_ioremap.txt
diff
early_memremap() to use MT_WRITEALLOC instead
of MT_UNCACHED.
Cc: Nicolas Pitre n...@linaro.org
Cc: Arnd Bergman a...@arndb.de
Cc: Catalin Marinas catalin.mari...@arm.com
Leif Lindholm (2):
Documentation: arm: early_ioremap/early_memremap
arm: add early_ioremap support
Documentation/arm/00
catalin.mari...@arm.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm/Kconfig |9 ++
arch/arm/include/asm/fixmap.h | 29 -
arch/arm/include/asm/io.h | 23
arch/arm/kernel/setup.c |3 +
arch/arm/mm/Makefile |1 +
arch/arm/mm
This patch provides documentation of the [U]EFI runtime services and
configuration features.
Cc: linux-...@vger.kernel.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Rob Landley r...@landley.net
---
Documentation/arm/00-INDEX |3 +++
Documentation/arm/uefi.txt | 47
This patch implements basic support for UEFI runtime services in the
ARM architecture - a requirement for using efibootmgr to read and update
the system boot configuration.
It uses the generic configuration table scanning to populate ACPI and
SMBIOS pointers.
Signed-off-by: Leif Lindholm
Since the efi_set_virtual_address_map call has strict init ordering
requirements, add an explicit hook in the required place.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
init/main.c |4
1 file changed, 4 insertions(+)
diff --git a/init/main.c b/init/main.c
index af310af
patchsets.
Changes from v1:
- Updated FDT bindings, based on feedback.
- Use common config table scanning and address lookup code.
- Add dependency on !CPU_BIG_ENDIAN (for now).
- Add proper efi_enabled() facility.
- Documentation updates.
Leif Lindholm (3):
Documentation: arm: add UEFI support
On Thu, Oct 03, 2013 at 11:11:18AM -0500, Rob Herring wrote:
Adding devicetree list since you are defining bindings...
+with CONFIG_OF.
+
+It parses the FDT /chosen node for the following parameters:
DT bindings should be documented in Documentation/devicetree/bindings.
I also
On Thu, Oct 03, 2013 at 06:10:54PM +0100, Mark Rutland wrote:
+The implementation depends on receiving the UEFI runtime memory map and a
+pointer to the System Table in a Flattened Device Tree - so is only
available
+with CONFIG_OF.
+
+It parses the FDT /chosen node for the following
On Thu, Oct 17, 2013 at 03:07:39PM +0100, Matt Fleming wrote:
+/*
+ * If you need to (temporarily) support buggy firmware.
+ */
+#define KEEP_BOOT_SERVICES_REGIONS
Have you seen firmware that requires this? I'm just curious more than
anything else.
Not really.
I _think_ I saw it on a
config table scanning and address lookup code.
- Add dependency on !CPU_BIG_ENDIAN (for now).
- Add proper efi_enabled() facility.
- Documentation updates.
Leif Lindholm (3):
Documentation: arm: add UEFI support documentation
arm: Add [U]EFI runtime services support
init: efi: arm: enable (U)EFI
This patch provides documentation of the [U]EFI runtime service and
configuration features for the arm architecture.
Changes since v1/v2:
- Complete rewrite.
- New FDT bindings.
Cc: Rob Landley r...@landley.net
Cc: linux-...@vger.kernel.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
bindings.
- Preserve regions marked RESERVED (but don't map them).
- Rename 'efi' - 'uefi' within this new port (leaving core code as is).
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm/Kconfig| 15 ++
arch/arm/include/asm/uefi.h | 22 ++
arch/arm/kernel/Makefile
Since the efi_set_virtual_address_map call has strict init ordering
requirements, add an explicit hook in the required place.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
init/main.c |4
1 file changed, 4 insertions(+)
diff --git a/init/main.c b/init/main.c
index febc511
Hi Will,
Thanks for having a look.
On Fri, Nov 29, 2013 at 04:10:16PM +, Will Deacon wrote:
This patch implements basic support for UEFI runtime services in the
ARM architecture - a requirement for using efibootmgr to read and update
the system boot configuration.
It uses the
On Fri, Nov 29, 2013 at 11:53:19AM +, Matt Fleming wrote:
On Thu, 28 Nov, at 04:41:20PM, Leif Lindholm wrote:
In systems based on [U]EFI-conformant firmware, runtime services provide
a standardised way for the kernel to update firmware environment
variables. This is used for example
On Mon, Dec 02, 2013 at 01:51:22PM -0600, Matt Sealey wrote:
Here's where I think this whole thing falls down as being the weirdest
possible implementation of this. It defies logic to put this
information in the device tree /chosen node while also attempting to
boot the kernel using an EFI
Hi Olof,
Many thanks for having a look.
On Fri, Nov 15, 2013 at 10:04:22AM -0800, Olof Johansson wrote:
This series is generally looking sane to me without looking at the
code in very close detail.
In the interest of full disclosure, I would like to point out that I
will be posting another
On Wed, Dec 04, 2013 at 03:06:47PM -0600, Matt Sealey wrote:
By the time we get half-way through arm/kernel/head.S the cache and
MMU has been turned off and on and off again by the decompressor, and
after a large amount of guesswork and arbitrary restriction-based
implementation, there's no
in the future.
Signed-off-by: Mark Salter msal...@redhat.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
include/linux/efi.h |6 ++
1 file changed, 6 insertions(+)
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 64d532c..a3276da 100644
--- a/include/linux/efi.h
From: Ard Biesheuvel ard.biesheu...@linaro.org
Loading unauthenticated FDT blobs directly from storage is a security hazard,
so this should only be allowed when running with UEFI Secure Boot disabled.
Signed-off-by: Ard Biesheuvel ard.biesheu...@linaro.org
Signed-off-by: Leif Lindholm leif.lindh
From: Mark Salter msal...@redhat.com
Add explanation of arm64 EFI stub and kernel image header changes
needed to masquerade as a PE/COFF application.
Signed-off-by: Mark Salter msal...@redhat.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Grant Likely grant.lik...@linaro.org
This patch provides documentation of the [U]EFI runtime service and
configuration features for the arm architecture.
Cc: Rob Landley r...@landley.net
Cc: linux-...@vger.kernel.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Grant Likely grant.lik...@linaro.org
Biesheuvel.
Signed-off-by: Ard Biesheuvel ard.biesheu...@linaro.org
Signed-off-by: Mark Salter msal...@redhat.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm64/Kconfig | 10 +++
arch/arm64/kernel/Makefile |3 +
arch/arm64/kernel/efi-entry.S | 93
...@redhat.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm64/Kconfig | 16 ++
arch/arm64/include/asm/efi.h | 14 ++
arch/arm64/kernel/Makefile |1 +
arch/arm64/kernel/efi.c | 465 ++
arch/arm64/kernel/setup.c|5
but this is not sufficient
for UEFI. This patch adds a create_id_mapping() function which reuses
the core code of the existing create_mapping().
Signed-off-by: Mark Salter msal...@redhat.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm64/include/asm/mmu.h |2 ++
arch/arm64/mm/mmu.c
#ifdefs in
efi-stub-helper.c.
Signed-off-by: Roy Franz roy.fr...@linaro.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Grant Likely grant.lik...@linaro.org
---
drivers/firmware/efi/fdt.c | 268
include/linux/efi.h|3
From: Roy Franz roy.fr...@linaro.org
Add a wrapper for printk to standardize the prefix for informational and
error messages from the EFI stub.
Signed-off-by: Roy Franz roy.fr...@linaro.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
drivers/firmware/efi/efi-stub-helper.c | 25
From: Roy Franz roy.fr...@linaro.org
Add the get_dram_base() function, shared by arm/arm64.
Signed-off-by: Roy Franz roy.fr...@linaro.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
drivers/firmware/efi/efi-stub-helper.c | 30 ++
1 file changed, 30
From: Roy Franz roy.fr...@linaro.org
Update efi-stub.txt documentation to be more general
and not x86 specific. Add ARM only dtb= command
line option description.
Signed-off-by: Roy Franz roy.fr...@linaro.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Grant Likely grant.lik
From: Mark Salter msal...@redhat.com
CONFIG_LIBFDT support does not include fdt_empty_tree.c which is
needed by arm64 EFI stub. Add it to libfdt_files.
Signed-off-by: Mark Salter msal...@redhat.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
lib/Makefile |3 ++-
lib
. Peter Anvin (1):
efi: x86: Improve cmdline conversion
Leif Lindholm (2):
efi: delete stray ARM ifdef
doc: arm: add UEFI support documentation
Mark Salter (7):
efi: create memory map iteration helper
lib: add fdt_empty_tree.c
efi: add helper function to get UEFI params from FDT
CONFIG_UEFI_PARAMS_FROM_FDT.
Signed-off-by: Mark Salter msal...@redhat.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
drivers/firmware/efi/Kconfig |7
drivers/firmware/efi/efi.c | 79 ++
include/linux/efi.h |9 +
3 files changed, 95
From: H. Peter Anvin h...@zytor.com
Improve the conversion of the UTF-16 EFI command line
to UTF-8 for passing to the kernel.
Signed-off-by: Roy Franz roy.fr...@linaro.org
Signed-off-by: H. Peter Anvin h...@zytor.com
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/boot
An #ifdef CONFIG_ARM clause in efi-stub-helper.c got included with some
of the generic stub rework by Roy Franz. Drop it here to make subsequent
patches less confusing.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
drivers/firmware/efi/efi-stub-helper.c | 14 ++
1 file
early_ioremap code to implement
early_ioremap for ARM. The ARM-specific bits come mostly from
an earlier patch from Leif Lindholm leif.lindh...@linaro.org
here:
This doesn't actually work for me. The PTE flags are not correct and
accesses to a device fault. See below.
Do they fault before
(but don't map them).
- Rename 'efi' - 'uefi' within this new port (leaving core code as is).
Leif Lindholm (5):
arm: break part of __soft_restart out into separate function
arm: add new asm macro update_sctlr
Documentation: arm: add UEFI support documentation
arm: Add [U]EFI runtime services
This patch provides documentation of the [U]EFI runtime service and
configuration features for the arm architecture.
Cc: Rob Landley r...@landley.net
Cc: linux-...@vger.kernel.org
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Grant Likely grant.lik...@linaro.org
This patch implements basic support for UEFI runtime services in the
ARM architecture - a requirement for using efibootmgr to read and update
the system boot configuration.
It uses the generic configuration table scanning to populate ACPI and
SMBIOS pointers.
Signed-off-by: Leif Lindholm
Since the efi_set_virtual_address_map call has strict init ordering
requirements, add an explicit hook in the required place.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Grant Likely grant.lik...@linaro.org
---
init/main.c |4
1 file changed, 4 insertions(+)
diff
A new macro for setting/clearing bits in the SCTLR.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Suggested-by: Will Deacon will.dea...@arm.com
---
arch/arm/include/asm/assembler.h | 13 +
1 file changed, 13 insertions(+)
diff --git a/arch/arm/include/asm/assembler.h b
Certain operations can be considered mandatory for any piece of code
preparing to switch off the MMU. Break this out into separate function
dmap_prepare().
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Suggested-by: Will Deacon will.dea...@arm.com
---
arch/arm/include/asm/idmap.h |1
On Mon, Jan 13, 2014 at 07:29:06PM +0100, Arnd Bergmann wrote:
On Saturday 11 January 2014, Leif Lindholm wrote:
diff --git a/init/main.c b/init/main.c
index febc511..1331829 100644
--- a/init/main.c
+++ b/init/main.c
@@ -905,6 +905,10 @@ static noinline void __init kernel_init_freeable
On Mon, Jan 13, 2014 at 07:43:09PM +0100, Arnd Bergmann wrote:
This patch implements basic support for UEFI runtime services in the
ARM architecture - a requirement for using efibootmgr to read and update
the system boot configuration.
It uses the generic configuration table scanning to
On Tue, Jan 14, 2014 at 07:52:32AM +0100, Arnd Bergmann wrote:
It uses the generic configuration table scanning to populate ACPI and
SMBIOS pointers.
As far as I'm concerned there are no plans to have ACPI support on ARM32,
so I wonder what the code to populate the ACPI tables is
On 14 January 2014 13:26, Arnd Bergmann a...@arndb.de wrote:
Are you suggesting that I should #ifndef ARM in common code, or that I
should neglect to document what the common code will do with data it is
given by UEFI?
It would probably be good to document the fact that it won't work,
This patch adds support for early_ioremap, based on the existing
mechanism in x86. Up to 7 regions of up to 128KB each can be
temporarily mapped in before paging_init, regardless of later highmem
status.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm/Kconfig
of early_ioremap(), available
before paging_init() only. Like the x86 code on which it is based, it
(p)re-uses the fixmap regions for its virtual mapping range. Up to 7
simultaneous mappings of up to 128KB can be accommodated in the available
fixmap space.
Leif Lindholm (2):
Documentation: arm
This patch provides documentation of the early_ioremap() functionality,
including its implementation and usage instructions.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
Documentation/arm/00-INDEX |2 ++
Documentation/arm/early_ioremap.txt | 12
2 files
This patch provides documentation of the [U]EFI runtime services and
configuration features.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
Documentation/arm/00-INDEX |3 +++
Documentation/arm/uefi.txt | 39 +++
2 files changed, 42 insertions
This patch implements basic support for UEFI runtime services in the
ARM architecture - a requirement for using efibootmgr to read and update
the system boot configuration.
It also locates any presented SMBIOS configuration table and stores it
for potential later use by DMI.
Signed-off-by: Leif
Since the efi_set_virtual_address_map call has strict init ordering
requirements, add an explicit hook in the required place.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
init/main.c |6 ++
1 file changed, 6 insertions(+)
diff --git a/init/main.c b/init/main.c
index 9484f4b
services on ARM
platforms, as well as the basic underlying EFI support. It also defines a
mechanism by which the required information is passed from the bootloader
to the kernel via FDT entries.
This patchset depends on the previously submitted early_ioremap() patchset.
Leif Lindholm (4
efi_lookup_mapped_addr is a handy helper function for translating
a physical address to the corresponding virtual one by scanning
through memmap.map.
This patch breaks it out into a new file for use elsewhere.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c
On Wed, Jun 26, 2013 at 02:20:23PM +0100, Grant Likely wrote:
On Wed, Jun 26, 2013 at 12:42 AM, Stephen Warren swar...@wwwdotorg.org
wrote:
the properties) should be part of a file in
Documentation/devicetree/bindings/ (arm/uefi.txt?).
What node are these properties expected to be
On Wed, Jun 26, 2013 at 02:13:39PM +0100, Grant Likely wrote:
diff --git a/Documentation/arm/uefi.txt b/Documentation/arm/uefi.txt
+It (early) parses the FDT for the following parameters:
Need to state which node these properties can be found in. I recommend /chosen
Will do.
I would
On Wed, Jun 26, 2013 at 02:32:17PM +0100, Matt Fleming wrote:
On Tue, 25 Jun, at 07:11:01PM, Leif Lindholm wrote:
efi_lookup_mapped_addr is a handy helper function for translating
a physical address to the corresponding virtual one by scanning
through memmap.map.
This patch breaks
table and stores it
for potential later use by DMI.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm/Kconfig | 15 ++
arch/arm/include/asm/efi.h | 22 +++
arch/arm/kernel/Makefile |2 +
arch/arm/kernel/efi.c | 456
On Wed, Jun 26, 2013 at 08:52:09PM +0200, Arnd Bergmann wrote:
I made a similar suggestion to extending the use of fixmap recently, see
Re: SCU registers mapping for CA9/CA5 cores. Russell pointed out that
fixmap is intentionally limited to just kmap_atomic uses at the moment
and changing that
On Wed, Jun 26, 2013 at 12:32:30PM -0600, Stephen Warren wrote:
What about ARMv8? Is the intention to have a separate definition for the
UEFI bindings on ARMv8, so that compatibility isn't an issue? What if a
future version of UEFI allows LPAE usage?
It is unlikely that will happen on
On Wed, Jun 26, 2013 at 11:23:50PM +0200, Arnd Bergmann wrote:
Is this an issue here, since (unlike x86) this early_ioremap only works
before paging_init()?
The main problem is that the total fixmap size is only around 900kb,
and we want to reserve at least 64kb per cpu for kmap_atomic.
On Thu, Jun 27, 2013 at 12:13:55AM +0200, Arnd Bergmann wrote:
Sorry, I still don't get it. Are you saying that kmap_atomic is
available before kmap_init() (in paging_init())?
If not, all of my mappings are discarded (well, abandoned to be more
correct), so I don't see how it affects
On Mon, Sep 02, 2013 at 10:29:02AM +0100, Matt Fleming wrote:
This patch actually breaks git bisection,
Urgh, sorry about that.
/home/build/git/efi/arch/x86/platform/efi/efi.c:581:19: error: conflicting
types for ‘efi_config_init’
In file included from
efi_lookup_mapped_addr() is a handy utility for other platforms than
x86. Move it from arch/x86 to drivers/firmware. Add memmap pointer
to global efi structure, and initialise it on x86.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/x86/platform/efi/efi.c | 30
the efi_lookup_mapped_addr() function out of x86
and places it in global efi.c, for shared use with future ARM
patches.
IA64 code compile tested only.
Leif Lindholm (3):
ia64: add early_memremap() alias for early_ioremap()
efi: x86: ia64: provide a generic efi_config_init()
efi: x86: make
from
the x86 and ia64 code.
Squashed into one big patch to avoid breaking bisection.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Tony Luck tony.l...@intel.com
Signed-off-by: Matt Fleming matt.flem...@intel.com
---
arch/ia64/kernel/efi.c | 54 +-
arch
early_ioremap() on IA64 chooses its mapping type based on the EFI
memory map. This patch adds an alias early_memremap() to be used
where the targeted location is memory rather than an i/o device.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Tony Luck tony.l...@intel.com
This patch provides documentation of the early_ioremap() and
early_memremap() functionality,including its implementation and usage
instructions.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Acked-by: Rob Landley r...@landley.net
---
Documentation/arm/00-INDEX |2
is the addition of the early_memremap() call,
which maps a region in with uncached normal memory type.
Leif Lindholm (2):
Documentation: arm: early_ioremap/early_memremap
arm: add early_ioremap support
Documentation/arm/00-INDEX |2 +
Documentation/arm/early_ioremap.txt | 23
This patch adds support for early_ioremap and early_memremap, based
on the existing mechanism in x86. Up to 7 regions of up to 128KB each
can be temporarily mapped in before paging_init, regardless of later
highmem status.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
---
arch/arm
On Fri, Sep 20, 2013 at 11:42:49AM +0100, Matt Fleming wrote:
On Thu, 19 Sep, at 04:54:45PM, Borislav Petkov wrote:
From: Borislav Petkov b...@suse.de
... and use the good old standard defines which we all know. Also,
simplify math to shift by PAGE_SHIFT instead of multiplying by
On Sat, Sep 21, 2013 at 05:41:43PM +0200, Borislav Petkov wrote:
On Sat, Sep 21, 2013 at 05:21:39PM +0200, Leif Lindholm wrote:
It will probably not be a problem on the stub side, and it's not used
in many places but it would break efi_lookup_mapped_address(),
efi_range_is_wc
On Sat, Sep 21, 2013 at 05:50:39PM +0200, Borislav Petkov wrote:
Ok, maybe the generic header include/linux/efi.h might be a problem but
the rest are changes to arch/x86/ which should have no effect whatsoever
on any other arch.
Or are you planning to move some of it into generic code?
__early_set_fixmap does not do any synchronization when called to set a
fixmap entry. Add call to flush_vmap_cache().
Tested on hardware.
Signed-off-by: Leif Lindholm leif.lindh...@linaro.org
Tested-by: Graeme Gregory graeme.greg...@linaro.org
Cc: Steve Capper steve.cap...@linaro.org
---
arch
On Fri, Jun 06, 2014 at 10:37:29AM -0400, Mark Salter wrote:
On Fri, 2014-06-06 at 11:29 +0100, Leif Lindholm wrote:
__early_set_fixmap does not do any synchronization when called to set a
fixmap entry. Add call to flush_vmap_cache().
Tested on hardware.
Signed-off-by: Leif Lindholm
On Mon, Jun 09, 2014 at 12:03:56PM +0100, Catalin Marinas wrote:
__early_set_fixmap does not do any synchronization when called to set
a
fixmap entry. Add call to flush_vmap_cache().
Did you hit a problem or it was just for safety?
This fixes an abort when accessing early UEFI
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