On 08/11/2024 14:58, Rob Herring wrote:
> On Fri, Nov 8, 2024 at 8:33 AM Steven Price wrote:
>>
>> On 08/11/2024 14:04, Rob Herring wrote:
>>> On Fri, Nov 8, 2024 at 7:26 AM Steven Price wrote:
>>>>
>>>> On 08/11/2024 11:04, Marek Szyprowski wrot
On 08/11/2024 14:04, Rob Herring wrote:
> On Fri, Nov 8, 2024 at 7:26 AM Steven Price wrote:
>>
>> On 08/11/2024 11:04, Marek Szyprowski wrote:
>>> Hi Rob,
>>>
>>> On 06.11.2024 18:10, Rob Herring (Arm) wrote:
>>>> While OpenFirmware origina
On 08/11/2024 11:04, Marek Szyprowski wrote:
> Hi Rob,
>
> On 06.11.2024 18:10, Rob Herring (Arm) wrote:
>> While OpenFirmware originally allowed walking parent nodes and default
>> root values for #address-cells and #size-cells, FDT has long required
>> explicit values. It's been a warning in dtc
On 23/10/2024 19:10, Liam R. Howlett wrote:
> * Steven Price [241023 05:31]:
>>>> * Box64 seems to have a custom allocator based on reading
>>>> /proc/self/maps to allocate a block of VA space with a low enough
>>>> address [1]
>>>>
Hi Liam,
On 21/10/2024 20:48, Liam R. Howlett wrote:
> * Steven Price [241021 09:23]:
>> On 09/09/2024 10:46, Kirill A. Shutemov wrote:
>>> On Thu, Sep 05, 2024 at 10:26:52AM -0700, Charlie Jenkins wrote:
>>>> On Thu, Sep 05, 2024 at 09:47:47AM +0300, Kirill A. Shu
On 09/09/2024 10:46, Kirill A. Shutemov wrote:
> On Thu, Sep 05, 2024 at 10:26:52AM -0700, Charlie Jenkins wrote:
>> On Thu, Sep 05, 2024 at 09:47:47AM +0300, Kirill A. Shutemov wrote:
>>> On Thu, Aug 29, 2024 at 12:15:57AM -0700, Charlie Jenkins wrote:
Some applications rely on placing data i
works and that's what's
> used during migration (on the VM where dirty tracking takes place).
>
> Reviewed-by: Catalin Marinas
>
Looks sensible to me - my initial thought was "why would a VMM do
that?". But it would make sense to actually return a failure rather than
letting the VMM shoot itself in the foot.
If there's actually a use-case then we could look at making the dirty
tracking work, but I'm not convinced there is a good reason.
Reviewed-by: Steven Price
Thanks,
Steve
talin Marinas
>
Yep, as Catalin says, this is an 'obviously' correct fix - the reference
needs releasing before bailing out. The comment there is perhaps
misleading - it's not just ZONE_DEVICE memory that will be rejected, but
this is the case that was in my mind when I wrote it. Although clearly I
wasn't thinking hard enough when writing the code in the first place... ;)
Reviewed-by: Steven Price
Thanks,
Steve
On 16/05/2023 01:00, Jason Gunthorpe wrote:
> This is on github:
> https://github.com/jgunthorpe/linux/commits/iommu_all_defdom
Tested-by: Steven Price
Works fine on my Firefly-RK3288.
Thanks,
Steve
On 08/02/2023 08:49, Cornelia Huck wrote:
> On Wed, Feb 08 2023, Gavin Shan wrote:
>
>> On 2/7/23 9:09 PM, Thomas Huth wrote:
>>> Oh, drat, I thought I had checked all return statements ... this must have
>>> fallen through the cracks, sorry!
>>>
>>> Anyway, this is already a problem now: The fu
On 26/04/2021 17:37, Claire Chang wrote:
On Fri, Apr 23, 2021 at 7:34 PM Steven Price wrote:
[...]
But even then if it's not and we have the situation where debugfs==NULL
then the debugfs_create_dir() here will cause a subsequent attempt in
swiotlb_create_debugfs() to fail (directory al
On 22/04/2021 09:14, Claire Chang wrote:
Add the initialization function to create restricted DMA pools from
matching reserved-memory nodes.
Signed-off-by: Claire Chang
---
include/linux/device.h | 4 +++
include/linux/swiotlb.h | 3 +-
kernel/dma/swiotlb.c| 80 ++
x27;t have a suitable system to test it.
Reviewed-by: Steven Price
---
v2:
- Add a guard for NULL ops->pte_entry
- Take mm->page_table_lock when walking hugepage table, as suggested by
follow_huge_pd()
---
mm/pagewalk.c | 58 ++-
1 file
On 19/04/2021 14:14, Christophe Leroy wrote:
Le 16/04/2021 à 12:51, Steven Price a écrit :
On 16/04/2021 11:38, Christophe Leroy wrote:
Le 16/04/2021 à 11:28, Steven Price a écrit :
On 15/04/2021 18:18, Christophe Leroy wrote:
To be honest I don't fully understand why powerpc req
On 16/04/2021 16:15, Christophe Leroy wrote:
Le 16/04/2021 à 17:04, Christophe Leroy a écrit :
Le 16/04/2021 à 16:40, Christophe Leroy a écrit :
Le 16/04/2021 à 15:00, Steven Price a écrit :
On 16/04/2021 12:08, Christophe Leroy wrote:
Le 16/04/2021 à 12:51, Steven Price a écrit
On 16/04/2021 12:08, Christophe Leroy wrote:
Le 16/04/2021 à 12:51, Steven Price a écrit :
On 16/04/2021 11:38, Christophe Leroy wrote:
Le 16/04/2021 à 11:28, Steven Price a écrit :
On 15/04/2021 18:18, Christophe Leroy wrote:
In order to support large pages on powerpc, notepage()
needs
On 16/04/2021 11:38, Christophe Leroy wrote:
Le 16/04/2021 à 11:28, Steven Price a écrit :
On 15/04/2021 18:18, Christophe Leroy wrote:
In order to support large pages on powerpc, notepage()
needs to know the page size of the page.
Add a page_size argument to notepage().
Signed-off-by
On 15/04/2021 18:18, Christophe Leroy wrote:
In order to support large pages on powerpc, notepage()
needs to know the page size of the page.
Add a page_size argument to notepage().
Signed-off-by: Christophe Leroy
---
arch/arm64/mm/ptdump.c | 2 +-
arch/riscv/mm/ptdump.c |
ith 16k pages")
for details.
It was cargo-culted from the arm64/x86 implementations (where this
happens to be safe).
Fixes: 30d621f6723b ("mm: add generic ptdump")
Cc: Steven Price
Signed-off-by: Christophe Leroy
Reviewed-by: Steven Price
Thanks,
Steve
---
mm/ptdump.c
On 13/07/2020 04:23, Anshuman Khandual wrote:
This adds new tests validating arch page table helpers for these following
core memory features. These tests create and test specific mapping types at
various page table levels.
1. SPECIAL mapping
2. PROTNONE mapping
3. DEVMAP mapping
4. SOFTDIRTY ma
On 19/12/2019 11:49, Michael Ellerman wrote:
> Steven Price writes:
>> walk_page_range() is going to be allowed to walk page tables other than
>> those of user space. For this it needs to know when it has reached a
>> 'leaf' entry in the page tables. This info
st. Export them using the
new p?d_leaf() name.
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Michael Ellerman
CC: linuxppc-dev@lists.ozlabs.org
CC: kvm-...@vger.kernel.org
Signed-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 3 +++
1 file changed, 3 insertions(+)
On 09/12/2019 11:08, Michael Ellerman wrote:
> Steven Price writes:
>> walk_page_range() is going to be allowed to walk page tables other than
>> those of user space. For this it needs to know when it has reached a
>> 'leaf' entry in the page tables. This info
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b01624e5c467..3dd7b6f5edd0 100644
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b01624e5c467..3dd7b6f5edd0 100644
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b01624e5c467..3dd7b6f5edd0 100644
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b01624e5c467..3dd7b6f5edd0 100644
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b01624e5c467..3dd7b6f5edd0 100644
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b01624e5c467..3dd7b6f5edd0 100644
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 8308f32e9782..84270666355c 100644
ned-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 8308f32e9782..84270666355c 100644
On 01/07/2019 10:27, Will Deacon wrote:
> Hi Nick,
>
> On Sun, Jun 23, 2019 at 07:44:44PM +1000, Nicholas Piggin wrote:
>> walk_page_range() is going to be allowed to walk page tables other than
>> those of user space. For this it needs to know when it has reached a
>> 'leaf' entry in the page tab
ctural restriction.
>
> Cc: Catalin Marinas
> Cc: Will Deacon
> Signed-off-by: Steven Price
Hi Nicolas,
This appears to my patch which I originally posted as part of converting
x86/arm64 to use a generic page walk code[1]. I'm not sure that this
patch makes much sense on its o
On 29/04/2019 03:05, Paul Mackerras wrote:
> On Wed, Apr 03, 2019 at 03:16:12PM +0100, Steven Price wrote:
>> Since pmd_large() is now always available, pmd_is_leaf() is redundant.
>> Replace all uses with calls to pmd_large().
>
> NAK. I don't want to do this, becau
On 04/04/2019 17:44, Josh Poimboeuf wrote:
> Configure arm64 runtime CPU speculation bug mitigations in accordance
> with the 'cpu_spec_mitigations=' cmdline options. This affects
> Meltdown and Speculative Store Bypass.
>
> The default behavior is unchanged.
>
> Signed-off-by: Josh Poimboeuf
>
Since pmd_large() is now always available, pmd_is_leaf() is redundant.
Replace all uses with calls to pmd_large().
CC: Benjamin Herrenschmidt
CC: Michael Ellerman
CC: Paul Mackerras
CC: kvm-...@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Steven Price
---
arch/powerpc/kvm
, so hoist it out of the
CONFIG_TRANSPARENT_HUGEPAGE condition and implement the other levels.
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Michael Ellerman
CC: linuxppc-dev@lists.ozlabs.org
CC: kvm-...@vger.kernel.org
Signed-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64
Since pmd_large() is now always available, pmd_is_leaf() is redundant.
Replace all uses with calls to pmd_large().
CC: Benjamin Herrenschmidt
CC: Michael Ellerman
CC: Paul Mackerras
CC: kvm-...@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Steven Price
---
arch/powerpc/kvm
, so hoist it out of the
CONFIG_TRANSPARENT_HUGEPAGE condition and implement the other levels.
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Michael Ellerman
CC: linuxppc-dev@lists.ozlabs.org
CC: kvm-...@vger.kernel.org
Signed-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64
On 26/03/2019 16:58, Christophe Leroy wrote:
>
>
> Le 26/03/2019 à 17:26, Steven Price a écrit :
>> walk_page_range() is going to be allowed to walk page tables other than
>> those of user space. For this it needs to know when it has reached a
>> 'leaf' entry
rg
CC: kvm-...@vger.kernel.org
Signed-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
arch/powerpc/kvm/book3s_64_mmu_radix.c | 12 ++--
2 files changed, 24 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable
rg
CC: kvm-...@vger.kernel.org
Signed-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
arch/powerpc/kvm/book3s_64_mmu_radix.c | 12 ++--
2 files changed, 24 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable
On 08/03/2019 08:37, Mike Rapoport wrote:
> On Wed, Mar 06, 2019 at 03:50:16PM +0000, Steven Price wrote:
>> walk_page_range() is going to be allowed to walk page tables other than
>> those of user space. For this it needs to know when it has reached a
>> 'leaf'
rg
CC: kvm-...@vger.kernel.org
Signed-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 30 ++--
arch/powerpc/kvm/book3s_64_mmu_radix.c | 12 ++--
2 files changed, 24 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable
l Ellerman
CC: linuxppc-dev@lists.ozlabs.org
CC: kvm-...@vger.kernel.org
Signed-off-by: Steven Price
---
arch/powerpc/include/asm/book3s/32/pgtable.h | 1 +
arch/powerpc/include/asm/book3s/64/pgtable.h | 27 ---
arch/powerpc/include/asm/nohash/32/pgtable.h | 1 +
.../include/asm
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