is not readily accessible, i.e. dynamic vmalloc calls on arm64.
To achieve this goal, it modifies every call and implementation of the
pmd_populate_kernel function across architectures, ensuring uniform
adoption across all kernel deployments.
Signed-off-by: Maxwell Bland
---
Hi all,
Thank you for taking
> On Tuesday, April 16, 2024 3:11 PM, Andrew Morton wrote:
> On Mon, 15 Apr 2024 14:51:32 -0500 Maxwell Bland
> wrote:
>
> > arch/arm64/mm/ptdump.c | 6 --
> > arch/powerpc/mm/ptdump/ptdump.c | 2 ++
> > arch/riscv/mm/ptdump.c
ptdump can now note non-leaf descriptor entries, a useful addition for
debugging table descriptor permissions when working on related code
Signed-off-by: Maxwell Bland
---
arch/arm64/mm/ptdump.c | 6 --
arch/powerpc/mm/ptdump/ptdump.c | 2 ++
arch/riscv/mm/ptdump.c | 6
an be more easily
noted in debug output by setting a note_non_leaf bool in the ptdump
state.
Signed-off-by: Maxwell Bland
---
Zero-eth, apologies for the triple mail of these patches. I am in the process
of setting up a new SMTP/mail server for Motorola, but until then I've needed
to script th
> On Wednesday, February 21, 2024 at 1:32 AM, Christophe Leroy wrote:
>
> On powerpc (book3s/32) we have more or less the same although it is not
> directly linked to PMDs: the virtual 4G address space is split in
> segments of 256M. On each segment there's a bit called NX to forbit
> execution.
> On Wednesday, February 21, 2024 12:59 AM, Christophe Leroy wrote:
>
> In the code you add __weak for that. But you also add the flags to the
> parameters and I can't understand why when reading the above description.
This change was made to allow most kernel interfaces use vmalloc_node and
> On February 21, 2024 3:27 AM David Hildenbrand wrote
> On 21.02.24 08:13, Christophe Leroy wrote:
> > Le 20/02/2024 à 21:32, Maxwell Bland a écrit :
> >>
> >> While other descriptors (e.g. pud) allow allocations conditional on
> >> which virtual address i
> From: Conor Dooley
> FYI:
>
> > mm/vmalloc: allow arch-specific vmalloc_node overrides
> > mm: pgalloc: support address-conditional pmd allocation
>
> With these two arch/riscv/configs/* are broken with calls to undeclared
> functions.
Will fix, thanks! I will also figure out how to make
outside of a known code region, and if
so, marks the pmd as PXNTable, protecting over 100 last-level page
tables from manipulation in the process.
Signed-off-by: Maxwell Bland
---
arch/arm64/include/asm/pgalloc.h | 11 +--
arch/arm64/include/asm/vmalloc.h | 5 +
arch/arm64/mm/trans_pgd.c
__vmalloc_node_range for more
specialized cases, such as kasan's shadow memory.
Signed-off-by: Maxwell Bland
---
arch/arm/kernel/irq.c | 2 +-
arch/arm64/include/asm/vmap_stack.h | 2 +-
arch/arm64/kernel/efi.c | 2 +-
arch/powerpc/kernel/irq.c | 2 +-
arch
of
allocation between PMD and other table descriptor types and (2) the
capability of address-specific PMD allocation.
Signed-off-by: Maxwell Bland
---
include/asm-generic/pgalloc.h | 18 ++
include/linux/mm.h| 4 ++--
mm/hugetlb_vmemmap.c | 4 ++--
mm/kasan/init.c
pmd_populate
function is modified to set the PXNTable bit appropriately.
Signed-off-by: Maxwell Bland
---
After Mark Rutland's feedback last week on my more minimal patch, see
I adopted a more sweeping and more correct overhaul of ARM's virtual
memory allocation infrastructure to support
-level tracking.
Signed-off-by: Maxwell Bland
---
arch/arm64/include/asm/vmalloc.h | 3 ++
arch/arm64/kernel/module.c | 7
arch/arm64/kernel/probes/kprobes.c | 2 +-
arch/arm64/mm/Makefile | 3 +-
arch/arm64/mm/vmalloc.c| 57
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