Adrian,
On Thu, Dec 03, 2020 at 11:55:23AM +0200, Adrian Hunter wrote:
> On 1/12/20 5:09 am, AKASHI Takahiro wrote:
> > Adrian,
> >
> > Thank you for your review comments.
> >
> > On Thu, Nov 26, 2020 at 10:18:55AM +0200, Adrian Hunter wrote:
> >>
On Thu, Dec 03, 2020 at 11:42:34AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This is a UHS-II version of sdhci's add_host/remove_host operation.
> > Any sdhci drivers which are capable of handling UHS-II cards must
> > call th
On Tue, Dec 01, 2020 at 06:46:39PM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This is a UHS-II version of sdhci's request() operation.
> > It handles UHS-II related command interrupts and errors.
> >
> > Signed-off-by: Ben Chuang
Adrian,
Thank you for your review comments.
On Thu, Nov 26, 2020 at 10:18:55AM +0200, Adrian Hunter wrote:
> On 25/11/20 9:41 am, AKASHI Takahiro wrote:
> > Gentle ping;
> >
> > On Fri, Nov 06, 2020 at 11:26:59AM +0900, AKASHI Takahiro wrote:
> >> This is an interi
On Thu, Nov 26, 2020 at 10:18:44AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This is a sdhci version of mmc's request operation.
> > It covers both UHS-I and UHS-II.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI T
On Thu, Nov 26, 2020 at 10:18:26AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This is a sdhci version of mmc's uhs2_set_reg operation.
> > UHS-II interface (related registers) will be initialised here.
> >
> > Signed-off-by: Ben Chuang
On Thu, Nov 26, 2020 at 10:17:59AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This is a sdhci version of mmc's uhs2_[enable|disable]_clk operations.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI Takahiro
> > ---
&
On Thu, Nov 26, 2020 at 10:17:38AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > Sdhci_uhs2_do_detect_init() is a sdhci version of mmc's uhs2_detect_init
> > operation. After detected, the host's UHS-II capabilities will be set up
> > here and
On Thu, Nov 26, 2020 at 10:17:11AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This is a sdhci version of mmc's set_ios operation.
> > It covers both UHS-I and UHS-II.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI T
On Thu, Nov 26, 2020 at 10:16:44AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > For UHS2, the signal voltage is supplied by vdd2 which is already 1.8v,
> > so no voltage switch required.
> >
> > Signed-off-by: Ben Chuang
> &g
On Thu, Nov 26, 2020 at 10:16:27AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This is a UHS-II version of sdhci's set_power operation.
> > VDD2, as well as VDD, is handled here.
> >
> > Signed-off-by: Ben Chuang
> &g
On Thu, Nov 26, 2020 at 10:16:11AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > Sdhci_uhs2_reset() does a UHS-II specific reset operation.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI Takahiro
> > ---
> &
On Thu, Nov 26, 2020 at 10:15:29AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > Add UHS-II related definitions in shdci.h and sdhci-uhs2.h.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI Takahiro
> > ---
> &g
On Thu, Nov 26, 2020 at 10:14:36AM +0200, Adrian Hunter wrote:
> On 6/11/20 4:27 am, AKASHI Takahiro wrote:
> > This kernel configuration, CONFIG_MMC_SDHCI_UHS2, will be used
> > in the following commits to indicate UHS-II specific code in sdhci
> > controllers.
On Wed, Nov 25, 2020 at 11:43:18AM +0100, Ulf Hansson wrote:
> On Wed, 25 Nov 2020 at 08:41, AKASHI Takahiro
> wrote:
> >
> > Gentle ping;
> >
> > On Fri, Nov 06, 2020 at 11:26:59AM +0900, AKASHI Takahiro wrote:
> > > This is an interim snapshot of our next
Gentle ping;
On Fri, Nov 06, 2020 at 11:26:59AM +0900, AKASHI Takahiro wrote:
> This is an interim snapshot of our next version, v4, for enabling
> UHS-II on MMC/SD.
>
> It is focused on 'sdhci' side to address Adrian's comments regarding
> "modularising" sdhc
In SD-TRAN protocol, legacy SD commands should be "encapsulated" in SD
packets as described in SD specification.
Please see section 7.1 and 7.2.1 in "UHS-II Simplified Addendum."
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/core/core.c | 18
This is a UHS-II version of sdhci's request() operation.
It handles UHS-II related command interrupts and errors.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 247 ++
drivers/mmc/host/sdhci-uhs2.h | 3 +
drivers
This is a UHS-II version of sdhci's set_power operation.
VDD2, as well as VDD, is handled here.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 80 +++
drivers/mmc/host/sdhci-uhs2.h | 2 +
drivers/mmc/host/sdhci.c
This is a sdhci version of mmc's uhs2_[enable|disable]_clk operations.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 41 +++
1 file changed, 41 insertions(+)
diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc
From: Ben Chuang
This "pre" hook for detect_init(), uhs2_pre_detect_init, will be required
to enable UHS-II support, at least, on GL9755.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 3 +++
drivers/mmc/host/sdhci.h | 1 +
2 fil
Dump UHS-II specific registers, if available, in sdhci_dumpregs()
for informative/debugging use.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 30 ++
drivers/mmc/host/sdhci-uhs2.h | 4
drivers/mmc/host/sdhci.c
From: Ben Chuang
This "post" hook for mmc_attach_sd(), uhs2_post_attach_sd, will be required
to enable UHS-II support, at least, on GL9755.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/d
mode.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/Kconfig | 1 +
drivers/mmc/host/sdhci-pci-gli.c | 318 ++-
2 files changed, 318 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
This is a sdhci version of mmc's request operation.
It covers both UHS-I and UHS-II.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 529 ++
drivers/mmc/host/sdhci.c | 93 +++---
drivers/mmc/host/sdhci.h
This is a sdhci version of mmc's uhs2_set_reg operation.
UHS-II interface (related registers) will be initialised here.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 103 ++
1 file changed, 103 insertions(+)
diff
Sdhci_uhs2_reset() does a UHS-II specific reset operation.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 49 +++
drivers/mmc/host/sdhci-uhs2.h | 1 +
drivers/mmc/host/sdhci.c | 3 ++-
drivers/mmc/host/sdhci.h
Sdhci_uhs2_do_detect_init() is a sdhci version of mmc's uhs2_detect_init
operation. After detected, the host's UHS-II capabilities will be set up
here and interrupts will also be enabled.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 160
This "post" hook for mmc_attach_sd() will be required to enable UHS-II
support, at least, on GL9755.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/core/sd.c| 6 ++
include/linux/mmc/host.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/driver
This patch prepares for adding UHS-II support at a specific UHS-II
capable sdhci-pci controller, GL9755 for now.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-pci-core.c | 16 +++-
drivers/mmc/host/sdhci-pci.h | 3 +++
2 files changed, 18
From: Ben Chuang
The flow of "interface selection and initialization" was a bit modified
for UHS-II card. This commit follows the sequence defined in SD
specification (Part 1).
See section 7.2.3 in "UHS-II Simplified Addendum."
Signed-off-by: Ben Chuang
Signed-off
in the next commit.)
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/core/block.c | 7 ++-
drivers/mmc/core/sd_ops.c | 3 +++
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 8d3df0be0355
This is a UHS-II version of sdhci's add_host/remove_host operation.
Any sdhci drivers which are capable of handling UHS-II cards must
call those functions instead of the corresponding sdhci's.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 198
Add UHS-II related definitions in shdci.h and sdhci-uhs2.h.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.h | 210 ++
drivers/mmc/host/sdhci.h | 73 +++-
2 files changed, 282 insertions(+), 1 deletion
This is a sdhci version of mmc's set_ios operation.
It covers both UHS-I and UHS-II.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 100 ++
drivers/mmc/host/sdhci-uhs2.h | 1 +
drivers/mmc/host/sdhci.c | 40
This is a UHS-II version of sdhci's set_timeout() operation.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 85 +++
drivers/mmc/host/sdhci-uhs2.h | 1 +
2 files changed, 86 insertions(+)
diff --git a/drivers/mmc
For UHS2, the signal voltage is supplied by vdd2 which is already 1.8v,
so no voltage switch required.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/sdhci-uhs2.c | 26 ++
1 file changed, 26 insertions(+)
diff --git a/drivers/mmc/host
This patch adds sdhci-uhs2.c as a module for UHS-II support.
This is a skelton for further development in this patch series.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/Makefile | 1 +
drivers/mmc/host/sdhci-uhs2.c | 46
This kernel configuration, CONFIG_MMC_SDHCI_UHS2, will be used
in the following commits to indicate UHS-II specific code in sdhci
controllers.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/host/Kconfig | 9 +
1 file changed, 9 insertions(+)
diff --git
mmc_set_chip_select() should be called only in UHS-II mode,
and not for UHS-II mode.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/core/core.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
In UHS-II mode, MMC_APP_CMD command need not to be sent.
Instead, APP_CMD bit in a packet should be set.
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/core/sd_ops.c | 9 +
drivers/mmc/core/uhs2.c | 4
2 files changed, 13 insertions(+)
diff --git
According to Fig. 3-35 in "SD Host Controller Simplified Spec. Ver4.20":
- Prepare vdd1, vdd2 and ios.timing for using after/in step (2)
- chip_select is not used in UHS-II, used to return to the legacy flow
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
drivers/mmc/c
From: Ben Chuang
Add UHS-II support in public headers
Signed-off-by: Ben Chuang
Signed-off-by: AKASHI Takahiro
---
include/linux/mmc/card.h | 1 +
include/linux/mmc/core.h | 6 +
include/linux/mmc/host.h | 30 +
include/linux/mmc/uhs2.h | 268
- remove flag_uhs2 from mmc_attach_sd()
- add function descriptions to EXPORT'ed functions
- other minor code optimization
Changes in v2 (Jan. 9, 2020)
* rebased to v5.5-rc5
AKASHI Takahiro (23):
mmc: core: UHS-II support, modify power-up sequence
mmc: core: UHS-II support, skip set_chip_select()
Ben,
On Fri, Sep 18, 2020 at 06:50:24PM +0800, Ben Chuang wrote:
> On Fri, Sep 18, 2020 at 2:38 PM AKASHI Takahiro
> wrote:
> >
> > Adrian, Ben,
> >
> > Regarding _set_ios() function,
> >
> > On Fri, Aug 21, 2020 at 05:08:32PM +0300, Adrian Hunter wr
Ben,
On Fri, Sep 18, 2020 at 06:27:01PM +0800, Ben Chuang wrote:
> On Fri, Sep 18, 2020 at 9:15 AM AKASHI Takahiro
> wrote:
> >
> > Ben,
> >
> > On Thu, Sep 17, 2020 at 06:12:27PM +0800, Ben Chuang wrote:
> > > Hi Takahiro,
> > >
> > > On
Adrian,
This is, hopefully, my last reply to your comments on this patch#12.
Regarding _request() and _send_command() (and more),
On Fri, Aug 21, 2020 at 05:08:32PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:10 pm, Ben Chuang wrote:
> > From: Ben Chuang
> >
> > In this commit, UHS-II related
y, sdhci_uhs2_ops, in order to make UHS-II support as
> > a kernel module.
> > This array will be initialized only if CONFIG_MMC_SDHCI_UHS2 is enabled
> > and when the UHS-II module is loaded. Otherwise, all the functions
> > stay void.
> >
> > Signed-o
Ben,
On Thu, Sep 17, 2020 at 06:12:27PM +0800, Ben Chuang wrote:
> Hi Takahiro,
>
> On Thu, Sep 17, 2020 at 1:12 PM AKASHI Takahiro
> wrote:
> >
> > Adrian, Ben,
> >
> > Regarding _reset() function,
> >
> > On Fri, Aug 21, 2020 at 05:08:32PM +0300
On Thu, Sep 17, 2020 at 07:52:03AM +0300, Adrian Hunter wrote:
> On 17/09/20 5:31 am, AKASHI Takahiro wrote:
> > Adrian,
> >
> > On Wed, Sep 16, 2020 at 01:00:35PM +0300, Adrian Hunter wrote:
> >> On 16/09/20 11:05 am, AKASHI Takahiro wrote:
> >>> Adria
y, sdhci_uhs2_ops, in order to make UHS-II support as
> > a kernel module.
> > This array will be initialized only if CONFIG_MMC_SDHCI_UHS2 is enabled
> > and when the UHS-II module is loaded. Otherwise, all the functions
> > stay void.
> >
> > Signed-off-by: Ben C
Adrian,
On Wed, Sep 16, 2020 at 01:00:35PM +0300, Adrian Hunter wrote:
> On 16/09/20 11:05 am, AKASHI Takahiro wrote:
> > Adrian,
> >
> > Your comments are scattered over various functions, and so
> > I would like to address them in separate replies.
> >
>
Ben,
On Wed, Sep 16, 2020 at 05:42:07PM +0800, Ben Chuang wrote:
> On Wed, Sep 16, 2020 at 8:52 AM AKASHI Takahiro
> wrote:
> >
> > On Tue, Sep 15, 2020 at 07:36:14PM +0800, Ben Chuang wrote:
> > > Hi Takahiro,
> > >
> > > On Tue, Sep 15,
gt; > and when the UHS-II module is loaded. Otherwise, all the functions
> > stay void.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI Takahiro
> > ---
(snip)
> > if (intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_R
Adrian,
On Wed, Sep 16, 2020 at 09:42:28AM +0300, Adrian Hunter wrote:
> On 15/09/20 9:24 am, AKASHI Takahiro wrote:
> > Adrain,
> >
> > On Mon, Sep 14, 2020 at 09:36:02AM +0300, Adrian Hunter wrote:
> >> On 14/09/20 8:45 am, AKASHI Takahiro wrote:
> >>>
On Wed, Sep 16, 2020 at 09:01:20AM +0300, Adrian Hunter wrote:
> On 15/09/20 9:03 am, AKASHI Takahiro wrote:
> > Ben, Adrian,
> >
> > On Mon, Sep 14, 2020 at 11:08:14AM +0300, Adrian Hunter wrote:
> >> On 14/09/20 9:40 am, AKASHI Takahiro wrote:
> >>>
On Tue, Sep 15, 2020 at 07:36:14PM +0800, Ben Chuang wrote:
> Hi Takahiro,
>
> On Tue, Sep 15, 2020 at 2:03 PM AKASHI Takahiro
> wrote:
> >
> > Ben, Adrian,
> >
> > On Mon, Sep 14, 2020 at 11:08:14AM +0300, Adrian Hunter wrote:
> > > On 14/09/20 9
On Fri, Aug 21, 2020 at 05:09:55PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:11 pm, Ben Chuang wrote:
> > From: AKASHI Takahiro
> >
> > Configure a regulator for VDD2 in case of power-off.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI
On Fri, Aug 21, 2020 at 05:05:44PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:10 pm, Ben Chuang wrote:
> > From: AKASHI Takahiro
> >
> > Export sdhci-specific UHS-II operations to core.
> >
> > Signed-off-by: Ben Chuang
> > Signed-off-by: AKASHI Takahiro
On Fri, Aug 21, 2020 at 05:04:54PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:10 pm, Ben Chuang wrote:
> > From: AKASHI Takahiro
> >
> > Dump UHS-II specific registers, if available, in sdhci_dumpregs()
> > for informative/debugging use.
> >
> > Si
Adrian,
On Fri, Aug 21, 2020 at 05:04:16PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:10 pm, Ben Chuang wrote:
> > From: AKASHI Takahiro
> >
> > Add UHS-II related definitions in shdci.h and sdhci-uhs2.h.
> >
> > Signed-off-by: Ben Chuang
&
Adrain,
On Mon, Sep 14, 2020 at 09:36:02AM +0300, Adrian Hunter wrote:
> On 14/09/20 8:45 am, AKASHI Takahiro wrote:
> > Adrian,
> >
> > On Fri, Aug 21, 2020 at 05:11:18PM +0300, Adrian Hunter wrote:
> >> On 10/07/20 2:11 pm, Ben Chuang wrote:
> >>&g
Ben, Adrian,
On Mon, Sep 14, 2020 at 11:08:14AM +0300, Adrian Hunter wrote:
> On 14/09/20 9:40 am, AKASHI Takahiro wrote:
> > Adrian,
> >
> > On Fri, Aug 21, 2020 at 05:09:01PM +0300, Adrian Hunter wrote:
> >> On 10/07/20 2:11 pm, Ben Chuang wrot
Adrian,
On Fri, Aug 21, 2020 at 05:09:01PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:11 pm, Ben Chuang wrote:
> > From: AKASHI Takahiro
> >
> > sdhci_start_signal_voltage_switch() should be called only in UHS-I mode,
> > and not for UHS-II mode.
> >
> >
Adrian,
On Fri, Aug 21, 2020 at 05:11:18PM +0300, Adrian Hunter wrote:
> On 10/07/20 2:11 pm, Ben Chuang wrote:
> > From: AKASHI Takahiro
> >
> > VDD2 is used for powering UHS-II interface.
> > Modify sdhci_set_power_and_bus_voltage(), sdhci_set_power_noreg()
&g
On Wed, Apr 10, 2019 at 08:47:03AM -0400, Steven Rostedt wrote:
> On Wed, 10 Apr 2019 12:28:11 +0200
> Thomas Gleixner wrote:
>
> > It's only used in the source file where it is defined and it's using the
> > stack_trace_ namespace. Rename it to free it up for stack trace related
> > functions.
On Tue, Dec 11, 2018 at 10:09:07AM +, James Morse wrote:
> Hi Akashi,
>
> On 11/12/2018 06:17, AKASHI, Takahiro wrote:
> > On Fri, Dec 07, 2018 at 10:12:47AM +, James Morse wrote:
> >> On 06/12/2018 15:54, Will Deacon wrote:
> >>> On Thu, Dec 06, 2
On Tue, Dec 11, 2018 at 02:50:02PM +0900, AKASHI Takahiro wrote:
> On Fri, Nov 30, 2018 at 01:19:44PM +, Will Deacon wrote:
> > On Thu, Nov 15, 2018 at 02:52:55PM +0900, AKASHI Takahiro wrote:
> > > Adding "kaslr-seed" to dtb enables triggering kaslr, or
James,
On Fri, Dec 07, 2018 at 10:12:47AM +, James Morse wrote:
> Hi Akashi, Will,
>
> On 06/12/2018 15:54, Will Deacon wrote:
> > On Thu, Dec 06, 2018 at 08:47:04AM -0600, Rob Herring wrote:
> >> On Wed, Nov 14, 2018 at 11:52 PM AKASHI Takahiro
> >>
On Fri, Nov 30, 2018 at 01:19:44PM +, Will Deacon wrote:
> On Thu, Nov 15, 2018 at 02:52:55PM +0900, AKASHI Takahiro wrote:
> > Adding "kaslr-seed" to dtb enables triggering kaslr, or kernel virtual
> > address randomization, at secondary kernel boot. We always do
On Fri, Nov 30, 2018 at 01:21:14PM +, Will Deacon wrote:
> On Thu, Nov 15, 2018 at 02:52:54PM +0900, AKASHI Takahiro wrote:
> > With this patch, kernel verification can be done without IMA security
> > subsystem enabled. Turn on CONFIG_KEXEC_VERIFY_SIG instead.
> >
&g
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/machine_kexec_file.c | 113 -
2 files cha
, you must have IMA enforced with, at least, the following
security policy:
"appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig"
See more details about IMA here:
https://sourceforge.net/p/linux-ima/wiki/Home/
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Those helper functions for MMFR0 register will be used later by kexec_file
loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/cpufeature.h | 48 +
1 file changed, 48 insertions(+)
diff
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/machine_kexec_file.c | 113 -
2 files cha
, you must have IMA enforced with, at least, the following
security policy:
"appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig"
See more details about IMA here:
https://sourceforge.net/p/linux-ima/wiki/Home/
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Those helper functions for MMFR0 register will be used later by kexec_file
loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/cpufeature.h | 48 +
1 file changed, 48 insertions(+)
diff
On Fri, Aug 17, 2018 at 12:27:24PM +0200, Torsten Duwe wrote:
> Check for compiler support of -fpatchable-function-entry and use it
> to intercept functions immediately on entry, saving the LR in x9.
> Disable ftracing in efi/libstub, because this triggers cross-section
> linker errors now (-pg is
On Fri, Aug 17, 2018 at 12:27:24PM +0200, Torsten Duwe wrote:
> Check for compiler support of -fpatchable-function-entry and use it
> to intercept functions immediately on entry, saving the LR in x9.
> Disable ftracing in efi/libstub, because this triggers cross-section
> linker errors now (-pg is
by passing "nokaslr" as a kernel boot argument.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/machine_kexec_file.c | 45 ++
1 file changed, 45 insertions(+)
diff --git a/arch/arm64/kernel/machine_kex
by passing "nokaslr" as a kernel boot argument.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/machine_kexec_file.c | 45 ++
1 file changed, 45 insertions(+)
diff --git a/arch/arm64/kernel/machine_kex
r KEXEC_FILE support
(additionally allowing for IMA-based verification):
Patch #1 to #6 are all preparatory patches on generic side.
Patch #7 to #11 are to enable kexec_file_load on arm64.
Patch #12 to #13 are for KEXEC_VERIFY_SIG (arch-specific verification)
support
AKASHI Takahiro (16):
(), the current
kexec_walk_memblock() won't work for kdump either in this form, this will
be fixed in the next patch.
Signed-off-by: AKASHI Takahiro
Cc: "Eric W. Biederman"
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
Acked-by: James Morse
---
arch/powerpc/kernel/machine_kexec_file
r KEXEC_FILE support
(additionally allowing for IMA-based verification):
Patch #1 to #6 are all preparatory patches on generic side.
Patch #7 to #11 are to enable kexec_file_load on arm64.
Patch #12 to #13 are for KEXEC_VERIFY_SIG (arch-specific verification)
support
AKASHI Takahiro (16):
(), the current
kexec_walk_memblock() won't work for kdump either in this form, this will
be fixed in the next patch.
Signed-off-by: AKASHI Takahiro
Cc: "Eric W. Biederman"
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
Acked-by: James Morse
---
arch/powerpc/kernel/machine_kexec_file
James,
All the changes mentioned below were applied to my coming v13.
On Fri, Jul 27, 2018 at 10:22:31AM +0100, James Morse wrote:
> Hi Akashi,
>
>
> On 07/27/2018 09:31 AM, AKASHI Takahiro wrote:
> >On Thu, Jul 26, 2018 at 02:40:49PM +0100, James Morse wrote:
> >&g
James,
All the changes mentioned below were applied to my coming v13.
On Fri, Jul 27, 2018 at 10:22:31AM +0100, James Morse wrote:
> Hi Akashi,
>
>
> On 07/27/2018 09:31 AM, AKASHI Takahiro wrote:
> >On Thu, Jul 26, 2018 at 02:40:49PM +0100, James Morse wrote:
> >&g
On Mon, Jul 30, 2018 at 04:36:28PM -0500, Dave Kleikamp wrote:
> On 07/30/2018 11:57 AM, Will Deacon wrote:
> > On Mon, Jul 30, 2018 at 11:46:24AM -0500, Dave Kleikamp wrote:
> >> On 07/30/2018 11:22 AM, Will Deacon wrote:
> >>> On Mon, Jul 30, 2018 at 05:16:42PM +0100, Catalin Marinas wrote:
>
On Mon, Jul 30, 2018 at 04:36:28PM -0500, Dave Kleikamp wrote:
> On 07/30/2018 11:57 AM, Will Deacon wrote:
> > On Mon, Jul 30, 2018 at 11:46:24AM -0500, Dave Kleikamp wrote:
> >> On 07/30/2018 11:22 AM, Will Deacon wrote:
> >>> On Mon, Jul 30, 2018 at 05:16:42PM +0100, Catalin Marinas wrote:
>
On Wed, Jul 25, 2018 at 08:31:29PM +0800, Dave Young wrote:
> On 07/24/18 at 03:57pm, AKASHI Takahiro wrote:
> > Memblock list is another source for usable system memory layout.
> > So move powerpc's arch_kexec_walk_mem() to common code so that other
> > memblock-based archit
On Wed, Jul 25, 2018 at 08:31:29PM +0800, Dave Young wrote:
> On 07/24/18 at 03:57pm, AKASHI Takahiro wrote:
> > Memblock list is another source for usable system memory layout.
> > So move powerpc's arch_kexec_walk_mem() to common code so that other
> > memblock-based archit
On Tue, Jul 24, 2018 at 09:05:45AM +1000, Stephen Rothwell wrote:
> Hi all,
>
> After merging the arm64 tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
Where can I find this specific branch?
> drivers/acpi/Kconfig:6:error: recursive dependency detected!
>
On Tue, Jul 24, 2018 at 09:05:45AM +1000, Stephen Rothwell wrote:
> Hi all,
>
> After merging the arm64 tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
Where can I find this specific branch?
> drivers/acpi/Kconfig:6:error: recursive dependency detected!
>
=2
Signed-off-by: AKASHI Takahiro
Reviewed-by: Ard Biesheuvel
---
drivers/firmware/efi/arm-runtime.c | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/firmware/efi/arm-runtime.c
b/drivers/firmware/efi/arm-runtime.c
index 59a8c0ec94d5..a00934d263c5 100644
ed access support (ACPI_MISALIGNMENT_NOT_SUPPORTED),
any unaligned access to ACPI tables can cause a fatal panic.
With this patch, acpi_os_ioremap() always honors memory attribute
information provided by the firmware (EFI) and retaining cacheability
allows the kernel safe access to ACPI tables.
=2
Signed-off-by: AKASHI Takahiro
Reviewed-by: Ard Biesheuvel
---
drivers/firmware/efi/arm-runtime.c | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/firmware/efi/arm-runtime.c
b/drivers/firmware/efi/arm-runtime.c
index 59a8c0ec94d5..a00934d263c5 100644
ed access support (ACPI_MISALIGNMENT_NOT_SUPPORTED),
any unaligned access to ACPI tables can cause a fatal panic.
With this patch, acpi_os_ioremap() always honors memory attribute
information provided by the firmware (EFI) and retaining cacheability
allows the kernel safe access to ACPI tables.
reak bisect
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-March/565980.html
[2] https://git.linaro.org/people/takahiro.akashi/kexec-tools.git arm64/resv_mem
[3] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-April/573655.html
[4] https://marc.info/?l=linux-efi=15293077350
reak bisect
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-March/565980.html
[2] https://git.linaro.org/people/takahiro.akashi/kexec-tools.git arm64/resv_mem
[3] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-April/573655.html
[4] https://marc.info/?l=linux-efi=15293077350
n initcall.
Reported-by: Bhupesh Sharma
Reported-by: Tyler Baicar
Suggested-by: Akashi Takahiro
Signed-off-by: James Morse
Fixes: d28f6df1305a ("arm64/kexec: Add core kexec support")
Reviewed-by: Ard Biesheuvel
CC: Mark Rutland
---
arch/arm64/kernel/setup.c | 38 +
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