On Tue, Aug 01, 2023 at 08:23:55AM +0200, Petr Tesarik wrote:
> From: Petr Tesarik
>
> Motivation
> ==
>
> The software IO TLB was designed with these assumptions:
>
> 1) It would not be used much. Small systems (little RAM) don't need it, and
>big systems (lots of RAM) would have m
From: Petr Tesarik
The value returned by default_swiotlb_limit() should be constant, because
it is used to decide whether DMA can be used. To allow allocating memory
pools on the fly, use the maximum possible physical address rather than the
highest address used by the default pool.
For swiotlb_
From: Petr Tesarik
When swiotlb_find_slots() cannot find suitable slots, schedule the
allocation of a new memory pool. It is not possible to allocate the pool
immediately, because this code may run in interrupt context, which is not
suitable for large memory allocations. This means that the memor
On 7/31/2023 9:46 PM, Petr Tesařík wrote:
> V Mon, 31 Jul 2023 18:04:09 +0200
> Christoph Hellwig napsáno:
>
>> I was just going to apply this, but patch 1 seems to have a non-trivial
>> conflict with the is_swiotlb_active removal in pci-dma.c. Can you resend
>> against the current dma-mapping f
From: Petr Tesarik
Skip searching the software IO TLB if a device has never used it, making
sure these devices are not affected by the introduction of multiple IO TLB
memory pools.
Additional memory barrier is required to ensure that the new value of the
flag is visible to other CPUs after mappi
From: Petr Tesarik
Try to allocate a transient memory pool if no suitable slots can be found
and the respective SWIOTLB is allowed to grow. The transient pool is just
enough big for this one bounce buffer. It is inserted into a per-device
list of transient memory pools, and it is freed again when
From: Petr Tesarik
Add a config option (CONFIG_SWIOTLB_DYNAMIC) to enable or disable dynamic
allocation of additional bounce buffers.
If this option is set, mark the default SWIOTLB as able to grow and
restricted DMA pools as unable.
However, if the address of the default memory pool is explici
From: Petr Tesarik
Carve out memory pool specific fields from struct io_tlb_mem. The original
struct now contains shared data for the whole allocator, while the new
struct io_tlb_pool contains data that is specific to one memory pool of
(potentially) many.
Signed-off-by: Petr Tesarik
---
inclu
From: Petr Tesarik
Add some kernel-doc comments and move the existing documentation of struct
io_tlb_slot to its correct location. The latter was forgotten in commit
942a8186eb445 ("swiotlb: move struct io_tlb_slot to swiotlb.c").
Use the opportunity to give swiotlb_do_find_slots() a more descri
From: Petr Tesarik
SWIOTLB implementation details should not be exposed to the rest of the
kernel. This will allow to make changes to the implementation without
modifying non-swiotlb code.
To avoid breaking existing users, provide helper functions for the few
required fields.
As a bonus, using
From: Petr Tesarik
If swiotlb is allocated, immediately return 0, so callers do not have to
check io_tlb_default_mem.nslabs explicitly.
Signed-off-by: Petr Tesarik
---
arch/arm/xen/mm.c| 10 --
kernel/dma/swiotlb.c | 3 +++
2 files changed, 7 insertions(+), 6 deletions(-)
diff --
From: Petr Tesarik
Motivation
==
The software IO TLB was designed with these assumptions:
1) It would not be used much. Small systems (little RAM) don't need it, and
big systems (lots of RAM) would have modern DMA controllers and an IOMMU
chip to handle legacy devices.
2) A small
On 01.08.2023 01:37, Shawn Anastasio wrote:
> On 7/31/23 10:46 AM, Jan Beulich wrote:
>> On 29.07.2023 00:21, Shawn Anastasio wrote:
>>> +/* If we're at the correct address, skip copy */
>>> +cmpld %r1, %r12
>>> +beq .L_correct_address
>>
>> Can this ever be the case, especially w
On 31.07.2023 21:09, Shawn Anastasio wrote:
> On 7/31/23 10:58 AM, Jan Beulich wrote:
>> On 28.07.2023 23:35, Shawn Anastasio wrote:
>>> --- a/xen/arch/ppc/ppc64/head.S
>>> +++ b/xen/arch/ppc/ppc64/head.S
>>> @@ -1,9 +1,11 @@
>>> /* SPDX-License-Identifier: GPL-2.0-or-later */
>>>
>>> #include
On 31.07.2023 21:03, Shawn Anastasio wrote:
> On 7/31/23 10:52 AM, Jan Beulich wrote:
>> On 28.07.2023 23:35, Shawn Anastasio wrote:
>>> Move the simple_strtoul routine which is used throughout the codebase
>>> from vsprintf.c to its own file in xen/lib.
>>>
>>> This allows libfdt to be built on pp
Assembler from binutils 2.41 rejects this syntax
.section "name"[, flags...]
where flags could be #alloc, #write, #execstr
Switch to using ELF syntax
.section name[, "flags"[, @type]]
[1] https://ftp.gnu.org/old-gnu/Manuals/gas-2.9.1/html_chapter/as_7.html#SEC119
Signed-off-by: Khem Raj
---
Assembler from binutils 2.41 rejects this syntax
.section "name"[, flags...]
where flags could be #alloc, #write, #execstr
Switch to using ELF syntax
.section name[, "flags"[, @type]]
[1] https://ftp.gnu.org/old-gnu/Manuals/gas-2.9.1/html_chapter/as_7.html#SEC119
Signed-off-by: Khem Raj
---
On Mon, Jul 31, 2023 at 06:09:41PM +0100, Ian Jackson wrote:
> Elliott Mitchell writes ("Re: Python in Domain Configurations"):
> > On Mon, Jul 31, 2023 at 05:59:55AM +0200, Marek Marczykowski-Górecki wrote:
> > > So, IMHO reducing config file from a full python (like it used to be in
> > > xend ti
From: Penny Zheng
SMMU subsystem is only supported in MMU system, so we make it dependent
on CONFIG_HAS_MMU.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
Signed-off-by: Henry Wang
---
v4:
- No change
v3:
- new patch
---
xen/drivers/passthrough/Kconfig | 3 ++-
1 file changed, 2 inserti
From: Penny Zheng
Function copy_from_paddr() is defined in asm/setup.h, so it is better
to be implemented in setup.c.
Current copy_from_paddr() implementation is mmu-specific, so this
commit moves copy_from_paddr() into mmu/setup.c, and it is also
benefical for us to implement MPU version of cop
From: Penny Zheng
Current P2M implementation is designed for MMU system only.
We move the MMU-specific codes into mmu/p2m.c, and only keep generic
codes in p2m.c, like VMID allocator, etc. We also move MMU-specific
definitions and declarations to mmu/p2m.h, such as p2m_tlb_flush_sync().
Also expo
From: Penny Zheng
As preparation for MPU support, which will use some variables/functions
for both MMU and MPU system, We rename the affected variable/function
to more generic names:
- init_ttbr -> init_mm,
- mmu_init_secondary_cpu() -> mm_init_secondary_cpu()
- init_secondary_pagetables() -> ini
From: Penny Zheng
fixmap and pmap are MMU-specific features, so fold them to MMU system.
Do the folding for pmap by moving the HAS_PMAP Kconfig selection under
HAS_MMU. Do the folding for fixmap by moving the implementation of
virt_to_fix() to mmu/mm.c, so that unnecessary stubs can be avoided.
From: Penny Zheng
setup_mm is used for Xen to setup memory management subsystem at boot
time, like boot allocator, direct-mapping, xenheap initialization,
frametable and static memory pages.
We could inherit some components seamlessly in later MPU system like
boot allocator, whilst we need to im
Currently, most of the MMU-specific code is in mm.{c,h}. To make the
mm extendable, this commit extract the MMU-specific code by firstly:
- Create a arch/arm/include/asm/mmu/ subdir.
- Create a arch/arm/mmu/ subdir.
Then move the MMU-specific code to above mmu subdir, which includes
below changes:
The original assembly setup_fixmap() is actually doing two seperate
tasks, one is enabling the early UART when earlyprintk on, and the
other is to set up the fixmap (even when earlyprintk is off).
Per discussion in [1], since commit
9d267c049d92 ("xen/arm64: Rework the memory layout"), there is no
From: Wei Chen
Xen defines some global configuration macros for Arm in config.h.
However there are some address layout related definitions that are
defined for MMU systems only, and these definitions could not be
used by MPU systems. Adding ifdefs with CONFIG_HAS_MPU to gate these
definitions wil
The MMU specific code in head.S will not be used on MPU systems.
Instead of introducing more #ifdefs which will bring complexity
to the code, move MMU related code to mmu/head.S and keep common
code in head.S. Two notes while moving:
- As "fail" in original head.S is very simple and this name is to
From: Wei Chen
We want to reuse head.S for MPU systems, but there are some
code are implemented for MMU systems only. We will move such
code to another MMU specific file. But before that we will
do some indentations fix in this patch to make them be easier
for reviewing:
1. Fix the indentations a
There are two types of memory system architectures available for
Arm-based systems, namely the Virtual Memory System Architecture (VMSA)
and the Protected Memory System Architecture (PMSA). According to
ARM DDI 0487G.a, A VMSA provides a Memory Management Unit (MMU) that
controls address translatio
From: Wei Chen
At the moment, on MMU system, enable_mmu() will return to an
address in the 1:1 mapping, then each path is responsible to
switch to virtual runtime mapping. Then remove_identity_mapping()
is called on the boot CPU to remove all 1:1 mapping.
Since remove_identity_mapping() is not n
Based on the discussion in the Xen Summit [1], sending this series out after
addressing the comments in v3 [2] as the preparation work to add MPU support.
Mostly code movement, with some of Kconfig and build system (mainly Makefiles)
adjustment. No functional change expected.
[1]
https://lore.ke
> From: Roger Pau Monne
> Sent: Friday, July 28, 2023 5:57 PM
>
> So that the remapping entry can be updated atomically when possible.
>
> Doing such update atomically will avoid Xen having to mask the IO-APIC
> pin prior to performing any interrupt movements (ie: changing the
> destination and
flight 182098 xen-unstable-smoke real [real]
http://logs.test-lab.xenproject.org/osstest/logs/182098/
Failures :-/ but no regressions.
Tests which did not succeed, but are not blocking:
test-amd64-amd64-libvirt 15 migrate-support-checkfail never pass
test-arm64-arm64-xl-xsm 1
Assembler from binutils 2.41 rejects this syntax
.section "name"[, flags...]
where flags could be #alloc, #write, #execstr
Switch to using ELF syntax
.section name[, "flags"[, @type]]
[1] https://ftp.gnu.org/old-gnu/Manuals/gas-2.9.1/html_chapter/as_7.html#SEC119
Signed-off-by: Khem Raj
---
Assembler from binutils 2.41 rejects this syntax
.section "name"[, flags...]
where flags could be #alloc, #write, #execstr
Switch to using ELF syntax
.section name[, "flags"[, @type]]
[1] https://ftp.gnu.org/old-gnu/Manuals/gas-2.9.1/html_chapter/as_7.html#SEC119
Signed-off-by: Khem Raj
---
> > Are you talking about that you only got a subset of this patch set?
>
> No, I'm saying I don't want to waste a bunch of time tracking down exactly
> which
> commit a 36 patch series is based on. E.g. I just refreshed tip/master and
> still
> get:
>
> Applying: x86/idtentry: Incorporate def
On 7/31/23 10:46 AM, Jan Beulich wrote:
> On 29.07.2023 00:21, Shawn Anastasio wrote:
>> Introduce a small assembly loop in `start` to copy the kernel to
>> physical address 0 before continuing. This ensures that the physical
>> address lines up with XEN_VIRT_START (0xc000) and allows u
On Mon, Jul 31, 2023, Xin3 Li wrote:
> > > This patch set enables the Intel flexible return and event delivery
> > > (FRED) architecture for x86-64.
> >
> > ...
> >
> > > --
> > > 2.34.1
> >
> > What is this based on?
>
> The tip tree master branch.
>
> > FYI, you're using a version of git tha
> > This patch set enables the Intel flexible return and event delivery
> > (FRED) architecture for x86-64.
>
> ...
>
> > --
> > 2.34.1
>
> What is this based on?
The tip tree master branch.
> FYI, you're using a version of git that will (mostly)
> automatically generate the based, e.g. I do
>
On Sun, Jul 30, 2023, Xin Li wrote:
> This patch set enables the Intel flexible return and event delivery
> (FRED) architecture for x86-64.
...
> --
> 2.34.1
What is this based on? FYI, you're using a version of git that will (mostly)
automatically generate the based, e.g. I do
git format-
flight 182090 ovmf real [real]
http://logs.test-lab.xenproject.org/osstest/logs/182090/
Perfect :-)
All tests in this flight passed as required
version targeted for testing:
ovmf 677f2c6f1509da21258e02957b869b71b008fc61
baseline version:
ovmf 70f3e62dc73d28962b833
On 7/30/23 23:41, Xin Li wrote:
+static DEFINE_FRED_HANDLER(fred_other_default)
+{
+ regs->vector = X86_TRAP_UD;
+ fred_emulate_fault(regs);
+}
+
+static DEFINE_FRED_HANDLER(fred_syscall)
+{
+ regs->orig_ax = regs->ax;
+ regs->ax = -ENOSYS;
+ do_syscall_64(regs, regs
On 7/30/23 23:41, Xin Li wrote:
+
+static DEFINE_FRED_HANDLER(fred_sw_interrupt_user)
+{
+ /*
+* In compat mode INT $0x80 (32bit system call) is
+* performance-critical. Handle it first.
+*/
+ if (IS_ENABLED(CONFIG_IA32_EMULATION) &&
+ likely(regs->ve
George, Dario,
Please ack
On Fri, 28 Jul 2023, Stefano Stabellini wrote:
> On Fri, 28 Jul 2023, Nicola Vetrini wrote:
> > Rule 5.3 has the following headline:
> > "An identifier declared in an inner scope shall not hide an
> > identifier declared in an outer scope"
> >
> > The renaming s/sched_
On Mon, 31 Jul 2023, Nicola Vetrini wrote:
> The functions 'machine_bfd' and 'guest_bfd' have gained the
> prefix 'get_' to avoid the mutual shadowing with the homonymous
> parameters in these functions.
>
> Signed-off-by: Nicola Vetrini
Reviewed-by: Stefano Stabellini
> ---
> xen/drivers/pa
On Mon, 31 Jul 2023, Nicola Vetrini wrote:
> On 31/07/2023 16:16, Jan Beulich wrote:
> > On 31.07.2023 15:34, Nicola Vetrini wrote:
> > > --- a/xen/drivers/passthrough/pci.c
> > > +++ b/xen/drivers/passthrough/pci.c
> > > @@ -650,12 +650,12 @@ int pci_add_device(u16 seg, u8 bus, u8 devfn,
> > >
On Mon, 31 Jul 2023, Federico Serafini wrote:
> Change parameter name of irq_set_affinity() to uniform the function
> prototype with the one used by x86.
>
> No functional changes.
>
> Signed-off-by: Federico Serafini
Reviewed-by: Stefano Stabellini
> ---
> xen/arch/arm/include/asm/irq.h |
On Mon, 31 Jul 2023, Federico Serafini wrote:
> Give a name to unnamed parameters to address violations of
> MISRA C:2012 Rule 8.2 ("Function types shall be in prototype form with
> named parameters").
> Keep consistency between parameter names and types used in function
> declarations and the ones
On Mon, 31 Jul 2023, Jan Beulich wrote:
> The primary goal is to eliminate the Misra-non-compliance of "desc"
> shadowing at least the local variable in hvm_load(). Suffix both local
> variables with underscores, while also
> - dropping leading underscores from parameter names (applying this also
>
V Mon, 31 Jul 2023 18:04:09 +0200
Christoph Hellwig napsáno:
> I was just going to apply this, but patch 1 seems to have a non-trivial
> conflict with the is_swiotlb_active removal in pci-dma.c. Can you resend
> against the current dma-mapping for-next tree?
Sure thing, will re-send tomorrow mo
On Mon, Jul 31, 2023 at 09:30:29PM +0200, Takashi Iwai wrote:
> Mark Brown wrote:
> > It really feels like we ought to rename, or add an alias for, the type
> > if we're going to start using it more widely - it's not helping to make
> > the code clearer.
> That was my very first impression, too,
On Mon, 31 Jul 2023 19:20:54 +0200,
Mark Brown wrote:
>
> On Mon, Jul 31, 2023 at 05:46:54PM +0200, Takashi Iwai wrote:
>
> > this is a patch set to clean up the PCM copy ops using sockptr_t as a
> > "universal" pointer, inspired by the recent patch from Andy
> > Shevchenko:
> >
> > https://lo
flight 182091 xen-unstable-smoke real [real]
http://logs.test-lab.xenproject.org/osstest/logs/182091/
Failures :-/ but no regressions.
Tests which did not succeed, but are not blocking:
test-amd64-amd64-libvirt 15 migrate-support-checkfail never pass
test-arm64-arm64-xl-xsm 1
On 7/31/23 10:59 AM, Jan Beulich wrote:
> On 28.07.2023 23:35, Shawn Anastasio wrote:
>> OPAL (OpenPower Abstraction Layer) is the interface exposed by firmware
>> on PowerNV (bare metal) systems. Import Linux's header definining the
>> API and related information.
>
> To help future updating, men
On 7/31/23 10:58 AM, Jan Beulich wrote:
> On 28.07.2023 23:35, Shawn Anastasio wrote:
>> --- a/xen/arch/ppc/ppc64/head.S
>> +++ b/xen/arch/ppc/ppc64/head.S
>> @@ -1,9 +1,11 @@
>> /* SPDX-License-Identifier: GPL-2.0-or-later */
>>
>> #include
>> +#include
>>
>> .section .text.header, "a
On 7/31/23 10:52 AM, Jan Beulich wrote:
> On 28.07.2023 23:35, Shawn Anastasio wrote:
>> Move the simple_strtoul routine which is used throughout the codebase
>> from vsprintf.c to its own file in xen/lib.
>>
>> This allows libfdt to be built on ppc64 even though xen/common doesn't
>> build yet.
>>
On 31/07/2023 9:00 am, Jan Beulich wrote:
> On 28.07.2023 18:58, Andrew Cooper wrote:
>> On 28/07/2023 5:36 pm, Andrew Cooper wrote:
>>> On 28/07/2023 8:59 am, Alejandro Vallejo wrote:
Adds a new compile-time flag to allow disabling pdx compression and
compiles out compression-related cod
On Mon, Jul 31, 2023 at 05:46:54PM +0200, Takashi Iwai wrote:
> this is a patch set to clean up the PCM copy ops using sockptr_t as a
> "universal" pointer, inspired by the recent patch from Andy
> Shevchenko:
>
> https://lore.kernel.org/r/20230721100146.67293-1-andriy.shevche...@linux.intel.co
Elliott Mitchell writes ("Re: Python in Domain Configurations"):
> On Mon, Jul 31, 2023 at 05:59:55AM +0200, Marek Marczykowski-Górecki wrote:
> > So, IMHO reducing config file from a full python (like it used to be in
> > xend times) into a static file with well defined syntax was an
> > improveme
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
late_alloc() also uses the __get_free_pages() helper function. Convert
this to use pagetable_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/um/include/asm/pgalloc.h | 18 +-
1 file changed, 9 insertions(+), 9 deleti
These functions are no longer necessary. Remove them and cleanup
Documentation referencing them.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
Documentation/mm/split_page_table_lock.rst| 12 +--
.../zh_CN/mm/split_page_table_lock.rst| 14 ++--
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Guo Ren
Acked-by: Mike Rapoport (IBM)
---
arch/csky/include/asm/pgalloc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/csky
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize p
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize p
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize p
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/sparc/mm/init_64.c | 17 +
1 file changed, 9 insertions
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
Acked-by: Dinh Nguyen
---
arch/nios2/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/hexagon/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/hexagon/include/
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize p
Part of the conversions to replace pgtable pte constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/sparc/mm/srmmu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/mm/srmmu.c b/arch/spar
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
Acked-by: Catalin Marinas
---
arch/arm64/include/asm/tlb.h | 14 --
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize p
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Signed-off-by: Vishal Moola (Oracle)
Reviewed-by: Geert Uytterhoeven
Acked-by: John Paul Adrian Glaubitz
Acked-by: Mike Rapoport (IBM)
---
arch/sh/include/asm/pgallo
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize p
The page table members are now split out into their own ptdesc struct.
Remove them from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm_types.h | 18 --
include/linux/pgtable.h | 3 ---
2 files changed, 21 deletions(-)
diff
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/openrisc/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/openrisc/includ
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize page tables further.
Signed-off-by: Vishal Moola (Oracle
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/powerpc/mm/book3s64/mmu_context.c | 10 ++---
arch/powerpc/mm/book3s64/pgtable.c | 32 +++---
arch/powerpc/mm/pgtab
Create pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(),
and pagetable_pmd_dtor() and make the original pgtable
constructor/destructors wrappers.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 56 ++
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/include/li
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 10 +-
mm/memory.c| 4 ++--
2 files changed, 7 insertions(+), 7 deletions(
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 6 +++---
mm/memory.c| 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)
di
Introduce utility functions setting the foundation for ptdescs. These
will also assist in the splitting out of ptdesc from struct page.
Functions that focus on the descriptor are prefixed with ptdesc_* while
functions that focus on the pagetable are prefixed with pagetable_*.
pagetable_alloc() is
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/x86/xen/mmu_pv.c | 2 +-
include/linux/mm.h| 14 +++---
2 files changed, 8 insertions(+), 8 de
Currently, page table information is stored within struct page. As part
of simplifying struct page, create struct ptdesc for page table
information.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/pgtable.h | 71 +
1 f
Converts internal pmd_pgtable_page() callers to use pmd_ptdesc(). This
removes some direct accesses to struct page, working towards splitting
out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 4 ++--
1 file changed, 2
The MM subsystem is trying to shrink struct page. This patchset
introduces a memory descriptor for page table tracking - struct ptdesc.
This patchset introduces ptdesc, splits ptdesc from struct page, and
converts many callers of page table constructor/destructors to use ptdescs.
Ptdesc is a foun
No folio equivalents for page type operations have been defined, so
define them for later folio conversions.
Also changes the Page##uname macros to take in const struct page* since
we only read the memory here.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linu
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Xen Security Advisory CVE-2023-20593 / XSA-433
version 3
x86/AMD: Zenbleed
UPDATES IN VERSION 3
The patch provided with earlier versions was buggy. It unint
On Mon, Jul 31, 2023 at 05:59:55AM +0200, Marek Marczykowski-Górecki wrote:
> On Mon, Jul 24, 2023 at 01:28:24PM -0700, Elliott Mitchell wrote:
> > On Fri, Jul 07, 2023 at 03:13:07PM -0700, Elliott Mitchell wrote:
> > >
> > > The only context I could find was 54fbaf446b and
> > > https://wiki.xenp
Hi,
On 2023/3/18 04:55, Stefano Stabellini wrote:
> On Fri, 17 Mar 2023, Roger Pau Monné wrote:
>> On Fri, Mar 17, 2023 at 11:15:37AM -0700, Stefano Stabellini wrote:
>>> On Fri, 17 Mar 2023, Roger Pau Monné wrote:
On Fri, Mar 17, 2023 at 09:39:52AM +0100, Jan Beulich wrote:
> On 17.03.20
> > Add instruction opcodes used by FRED ERETU/ERETS to x86-opcode-map.
> >
> > Opcode numbers are per FRED spec v5.0.
> >
> > Signed-off-by: H. Peter Anvin (Intel)
> > Tested-by: Shan Kang
> > Signed-off-by: Xin Li
>
> This looks good to me. (ERETS has the opcode F2 0F 01 CA, ERETU has the opc
> On 31 Jul 2023, at 16:20, Jan Beulich wrote:
>
> On 31.07.2023 17:11, Luca Fancellu wrote:
+{
+"rel_path": "arch/x86/include/asm/bug.h",
+"comment": "Includes mostly assembly macro"
+},
>>>
>>> Mind me asking why assembly macros wou
On 28.07.2023 23:35, Shawn Anastasio wrote:
> --- a/xen/arch/ppc/arch.mk
> +++ b/xen/arch/ppc/arch.mk
> @@ -10,5 +10,5 @@ CFLAGS += -mstrict-align -mcmodel=medium -mabi=elfv2 -fPIC
> -mno-altivec -mno-vsx
> LDFLAGS += -m elf64lppc
>
> # TODO: Drop override when more of the build is working
> -
I was just going to apply this, but patch 1 seems to have a non-trivial
conflict with the is_swiotlb_active removal in pci-dma.c. Can you resend
against the current dma-mapping for-next tree?
On 28.07.2023 23:35, Shawn Anastasio wrote:
> OPAL (OpenPower Abstraction Layer) is the interface exposed by firmware
> on PowerNV (bare metal) systems. Import Linux's header definining the
> API and related information.
To help future updating, mentioning version (or commit) at which this
snapsho
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