[PATCHv6 00/11] CONFIG_DEBUG_VIRTUAL for arm64

[PATCHv6 00/11] CONFIG_DEBUG_VIRTUAL for arm64

[Laura Abbott]

Happy New Year!

This is a very minor rebase from v5. It only moves a few headers around.
I think this series should be ready to be queued up for 4.11.

Thanks,
Laura

Laura Abbott (11):
  lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
  mm/cma: Cleanup highmem check
  arm64: Move some macros under #ifndef __ASSEMBLY__
  arm64: Add cast for virt_to_pfn
  mm: Introduce lm_alias
  arm64: Use __pa_symbol for kernel symbols
  drivers: firmware: psci: Use __pa_symbol for kernel symbol
  kexec: Switch to __pa_symbol
  mm/kasan: Switch to using __pa_symbol and lm_alias
  mm/usercopy: Switch to using lm_alias
  arm64: Add support for CONFIG_DEBUG_VIRTUAL

 arch/arm64/Kconfig                        |  1 +
 arch/arm64/include/asm/kvm_mmu.h          |  4 +-
 arch/arm64/include/asm/memory.h           | 66 +++++++++++++++++++++----------
 arch/arm64/include/asm/mmu_context.h      |  6 +--
 arch/arm64/include/asm/pgtable.h          |  2 +-
 arch/arm64/kernel/acpi_parking_protocol.c |  3 +-
 arch/arm64/kernel/cpu-reset.h             |  2 +-
 arch/arm64/kernel/cpufeature.c            |  3 +-
 arch/arm64/kernel/hibernate.c             | 20 +++-------
 arch/arm64/kernel/insn.c                  |  2 +-
 arch/arm64/kernel/psci.c                  |  3 +-
 arch/arm64/kernel/setup.c                 |  9 +++--
 arch/arm64/kernel/smp_spin_table.c        |  3 +-
 arch/arm64/kernel/vdso.c                  |  8 +++-
 arch/arm64/mm/Makefile                    |  2 +
 arch/arm64/mm/init.c                      | 12 +++---
 arch/arm64/mm/kasan_init.c                | 22 +++++++----
 arch/arm64/mm/mmu.c                       | 33 ++++++++++------
 arch/arm64/mm/physaddr.c                  | 30 ++++++++++++++
 arch/x86/Kconfig                          |  1 +
 drivers/firmware/psci.c                   |  2 +-
 include/linux/mm.h                        |  4 ++
 kernel/kexec_core.c                       |  2 +-
 lib/Kconfig.debug                         |  5 ++-
 mm/cma.c                                  | 15 +++----
 mm/kasan/kasan_init.c                     | 15 +++----
 mm/usercopy.c                             |  4 +-
 27 files changed, 180 insertions(+), 99 deletions(-)
 create mode 100644 arch/arm64/mm/physaddr.c

-- 
2.7.4


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[PATCHv6 08/11] kexec: Switch to __pa_symbol

[Laura Abbott]

__pa_symbol is the correct api to get the physical address of kernel
symbols. Switch to it to allow for better debug checking.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
 kernel/kexec_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 5617cc4..a01974e 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -1399,7 +1399,7 @@ void __weak arch_crash_save_vmcoreinfo(void)
 
 phys_addr_t __weak paddr_vmcoreinfo_note(void)
 {
-	return __pa((unsigned long)(char *)&vmcoreinfo_note);
+	return __pa_symbol((unsigned long)(char *)&vmcoreinfo_note);
 }
 
 static int __init crash_save_vmcoreinfo_init(void)
-- 
2.7.4


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Re: [PATCHv6 00/11] CONFIG_DEBUG_VIRTUAL for arm64

[Florian Fainelli]

On 01/03/2017 09:21 AM, Laura Abbott wrote:
> Happy New Year!
> 
> This is a very minor rebase from v5. It only moves a few headers around.
> I think this series should be ready to be queued up for 4.11.

FWIW:

Tested-by: Florian Fainelli <f.fainelli@gmail.com>

How do we get this series included? I would like to get the ARM 32-bit
counterpart included as well (will resubmit rebased shortly), but I have
no clue which tree this should be going through.

Thanks!

> 
> Thanks,
> Laura
> 
> Laura Abbott (11):
>   lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
>   mm/cma: Cleanup highmem check
>   arm64: Move some macros under #ifndef __ASSEMBLY__
>   arm64: Add cast for virt_to_pfn
>   mm: Introduce lm_alias
>   arm64: Use __pa_symbol for kernel symbols
>   drivers: firmware: psci: Use __pa_symbol for kernel symbol
>   kexec: Switch to __pa_symbol
>   mm/kasan: Switch to using __pa_symbol and lm_alias
>   mm/usercopy: Switch to using lm_alias
>   arm64: Add support for CONFIG_DEBUG_VIRTUAL
> 
>  arch/arm64/Kconfig                        |  1 +
>  arch/arm64/include/asm/kvm_mmu.h          |  4 +-
>  arch/arm64/include/asm/memory.h           | 66 +++++++++++++++++++++----------
>  arch/arm64/include/asm/mmu_context.h      |  6 +--
>  arch/arm64/include/asm/pgtable.h          |  2 +-
>  arch/arm64/kernel/acpi_parking_protocol.c |  3 +-
>  arch/arm64/kernel/cpu-reset.h             |  2 +-
>  arch/arm64/kernel/cpufeature.c            |  3 +-
>  arch/arm64/kernel/hibernate.c             | 20 +++-------
>  arch/arm64/kernel/insn.c                  |  2 +-
>  arch/arm64/kernel/psci.c                  |  3 +-
>  arch/arm64/kernel/setup.c                 |  9 +++--
>  arch/arm64/kernel/smp_spin_table.c        |  3 +-
>  arch/arm64/kernel/vdso.c                  |  8 +++-
>  arch/arm64/mm/Makefile                    |  2 +
>  arch/arm64/mm/init.c                      | 12 +++---
>  arch/arm64/mm/kasan_init.c                | 22 +++++++----
>  arch/arm64/mm/mmu.c                       | 33 ++++++++++------
>  arch/arm64/mm/physaddr.c                  | 30 ++++++++++++++
>  arch/x86/Kconfig                          |  1 +
>  drivers/firmware/psci.c                   |  2 +-
>  include/linux/mm.h                        |  4 ++
>  kernel/kexec_core.c                       |  2 +-
>  lib/Kconfig.debug                         |  5 ++-
>  mm/cma.c                                  | 15 +++----
>  mm/kasan/kasan_init.c                     | 15 +++----
>  mm/usercopy.c                             |  4 +-
>  27 files changed, 180 insertions(+), 99 deletions(-)
>  create mode 100644 arch/arm64/mm/physaddr.c
> 


-- 
Florian

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Re: [PATCHv6 00/11] CONFIG_DEBUG_VIRTUAL for arm64

[Laura Abbott]

On 01/03/2017 02:56 PM, Florian Fainelli wrote:
> On 01/03/2017 09:21 AM, Laura Abbott wrote:
>> Happy New Year!
>>
>> This is a very minor rebase from v5. It only moves a few headers around.
>> I think this series should be ready to be queued up for 4.11.
> 
> FWIW:
> 
> Tested-by: Florian Fainelli <f.fainelli@gmail.com>
> 

Thanks!

> How do we get this series included? I would like to get the ARM 32-bit
> counterpart included as well (will resubmit rebased shortly), but I have
> no clue which tree this should be going through.
> 

I was assuming this would go through the arm64 tree unless Catalin/Will
have an objection to that.

> Thanks!
> 
>>
>> Thanks,
>> Laura
>>
>> Laura Abbott (11):
>>   lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
>>   mm/cma: Cleanup highmem check
>>   arm64: Move some macros under #ifndef __ASSEMBLY__
>>   arm64: Add cast for virt_to_pfn
>>   mm: Introduce lm_alias
>>   arm64: Use __pa_symbol for kernel symbols
>>   drivers: firmware: psci: Use __pa_symbol for kernel symbol
>>   kexec: Switch to __pa_symbol
>>   mm/kasan: Switch to using __pa_symbol and lm_alias
>>   mm/usercopy: Switch to using lm_alias
>>   arm64: Add support for CONFIG_DEBUG_VIRTUAL
>>
>>  arch/arm64/Kconfig                        |  1 +
>>  arch/arm64/include/asm/kvm_mmu.h          |  4 +-
>>  arch/arm64/include/asm/memory.h           | 66 +++++++++++++++++++++----------
>>  arch/arm64/include/asm/mmu_context.h      |  6 +--
>>  arch/arm64/include/asm/pgtable.h          |  2 +-
>>  arch/arm64/kernel/acpi_parking_protocol.c |  3 +-
>>  arch/arm64/kernel/cpu-reset.h             |  2 +-
>>  arch/arm64/kernel/cpufeature.c            |  3 +-
>>  arch/arm64/kernel/hibernate.c             | 20 +++-------
>>  arch/arm64/kernel/insn.c                  |  2 +-
>>  arch/arm64/kernel/psci.c                  |  3 +-
>>  arch/arm64/kernel/setup.c                 |  9 +++--
>>  arch/arm64/kernel/smp_spin_table.c        |  3 +-
>>  arch/arm64/kernel/vdso.c                  |  8 +++-
>>  arch/arm64/mm/Makefile                    |  2 +
>>  arch/arm64/mm/init.c                      | 12 +++---
>>  arch/arm64/mm/kasan_init.c                | 22 +++++++----
>>  arch/arm64/mm/mmu.c                       | 33 ++++++++++------
>>  arch/arm64/mm/physaddr.c                  | 30 ++++++++++++++
>>  arch/x86/Kconfig                          |  1 +
>>  drivers/firmware/psci.c                   |  2 +-
>>  include/linux/mm.h                        |  4 ++
>>  kernel/kexec_core.c                       |  2 +-
>>  lib/Kconfig.debug                         |  5 ++-
>>  mm/cma.c                                  | 15 +++----
>>  mm/kasan/kasan_init.c                     | 15 +++----
>>  mm/usercopy.c                             |  4 +-
>>  27 files changed, 180 insertions(+), 99 deletions(-)
>>  create mode 100644 arch/arm64/mm/physaddr.c
>>
> 
> 


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Re: [PATCHv6 00/11] CONFIG_DEBUG_VIRTUAL for arm64

[Will Deacon]

On Tue, Jan 03, 2017 at 03:25:53PM -0800, Laura Abbott wrote:
> On 01/03/2017 02:56 PM, Florian Fainelli wrote:
> > On 01/03/2017 09:21 AM, Laura Abbott wrote:
> >> Happy New Year!
> >>
> >> This is a very minor rebase from v5. It only moves a few headers around.
> >> I think this series should be ready to be queued up for 4.11.
> > 
> > FWIW:
> > 
> > Tested-by: Florian Fainelli <f.fainelli@gmail.com>
> > 
> 
> Thanks!
> 
> > How do we get this series included? I would like to get the ARM 32-bit
> > counterpart included as well (will resubmit rebased shortly), but I have
> > no clue which tree this should be going through.
> > 
> 
> I was assuming this would go through the arm64 tree unless Catalin/Will
> have an objection to that.

Yup, I was planning to pick it up for 4.11.

Florian -- does your series depend on this? If so, then I'll need to
co-ordinate with Russell (probably via a shared branch that we both pull)
if you're aiming for 4.11 too.

Will

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Re: [PATCHv6 00/11] CONFIG_DEBUG_VIRTUAL for arm64

[Florian Fainelli]

On 01/04/2017 03:44 AM, Will Deacon wrote:
> On Tue, Jan 03, 2017 at 03:25:53PM -0800, Laura Abbott wrote:
>> On 01/03/2017 02:56 PM, Florian Fainelli wrote:
>>> On 01/03/2017 09:21 AM, Laura Abbott wrote:
>>>> Happy New Year!
>>>>
>>>> This is a very minor rebase from v5. It only moves a few headers around.
>>>> I think this series should be ready to be queued up for 4.11.
>>>
>>> FWIW:
>>>
>>> Tested-by: Florian Fainelli <f.fainelli@gmail.com>
>>>
>>
>> Thanks!
>>
>>> How do we get this series included? I would like to get the ARM 32-bit
>>> counterpart included as well (will resubmit rebased shortly), but I have
>>> no clue which tree this should be going through.
>>>
>>
>> I was assuming this would go through the arm64 tree unless Catalin/Will
>> have an objection to that.
> 
> Yup, I was planning to pick it up for 4.11.
> 
> Florian -- does your series depend on this? If so, then I'll need to
> co-ordinate with Russell (probably via a shared branch that we both pull)
> if you're aiming for 4.11 too.

Yes, pretty much everything in Laura's patch series is relevant, except
the arm64 bits.

I will get v6 out now addressing Laura's and Hartley's feedback and
then, if you could holler when and where you have applied these, I can
coordinate with Russell about how to get these included.

Thanks and happy new year!
-- 
Florian

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Re: [PATCHv6 00/11] CONFIG_DEBUG_VIRTUAL for arm64

[Will Deacon]

On Wed, Jan 04, 2017 at 02:30:50PM -0800, Florian Fainelli wrote:
> On 01/04/2017 03:44 AM, Will Deacon wrote:
> > On Tue, Jan 03, 2017 at 03:25:53PM -0800, Laura Abbott wrote:
> >> On 01/03/2017 02:56 PM, Florian Fainelli wrote:
> >>> On 01/03/2017 09:21 AM, Laura Abbott wrote:
> >>>> Happy New Year!
> >>>>
> >>>> This is a very minor rebase from v5. It only moves a few headers around.
> >>>> I think this series should be ready to be queued up for 4.11.
> >>>
> >>> FWIW:
> >>>
> >>> Tested-by: Florian Fainelli <f.fainelli@gmail.com>
> >>>
> >>
> >> Thanks!
> >>
> >>> How do we get this series included? I would like to get the ARM 32-bit
> >>> counterpart included as well (will resubmit rebased shortly), but I have
> >>> no clue which tree this should be going through.
> >>>
> >>
> >> I was assuming this would go through the arm64 tree unless Catalin/Will
> >> have an objection to that.
> > 
> > Yup, I was planning to pick it up for 4.11.
> > 
> > Florian -- does your series depend on this? If so, then I'll need to
> > co-ordinate with Russell (probably via a shared branch that we both pull)
> > if you're aiming for 4.11 too.
> 
> Yes, pretty much everything in Laura's patch series is relevant, except
> the arm64 bits.

Ok, then. Laura -- could you please reorder your patches so that the
non-arm64 bits come first? That way, I can put those on a separate branch
and have it pulled by both arm64 and rmk, so that the prequisities are
shared between the architectures.

Thanks,

Will

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