Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 8:06 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 10/10] xen/arm: introduce alloca
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 8:13 PM
> To: Penny Zheng ; Jan Beulich
> Cc: Bertrand Marquis ; Wei Chen
> ; nd ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Subject: Re: [PATCH 0
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 8:09 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 09/10] xen/arm: parse `xen
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 7:48 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH] Xen: Design doc for 1:1 direct-m
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Thursday, May 20, 2021 2:27 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 01/10] xen/arm: introduce dom
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Thursday, May 20, 2021 3:46 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 03/10] xen/arm: introduce PGC_r
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Thursday, May 20, 2021 4:10 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 10/10] xen/arm: introduc
Hi julien
> -Original Message-
> From: Penny Zheng
> Sent: Thursday, May 20, 2021 2:20 PM
> To: Julien Grall ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: RE: [PATCH 03/10] xen/arm: introduce PGC
Hi Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 6:43 PM
> To: Penny Zheng
> Cc: Bertrand Marquis ; Wei Chen
> ; nd ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 04/10] xen/arm: stat
Hi Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 7:23 PM
> To: Penny Zheng
> Cc: Bertrand Marquis ; Wei Chen
> ; nd ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 0
Hi Julien
> -Original Message-
> From: Penny Zheng
> Sent: Wednesday, May 19, 2021 1:24 PM
> To: Julien Grall ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: RE: [PATCH 05/10] xen/arm: introduce alloc
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Thursday, May 20, 2021 4:51 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 01/10] xen/arm: introduce dom
Hi Jan
> -Original Message-
> From: Jan Beulich
> Sent: Friday, May 21, 2021 3:09 PM
> To: Penny Zheng
> Cc: Bertrand Marquis ; Wei Chen
> ; nd ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 0
Hi stefano and julien
> -Original Message-
> From: Stefano Stabellini
> Sent: Friday, June 4, 2021 7:56 AM
> To: Julien Grall
> Cc: Stefano Stabellini ; Penny Zheng
> ; xen-devel@lists.xenproject.org; Bertrand Marquis
> ; Wei Chen ; nd
>
> Subject: Re: [PATC
` and `memory` are both defined
- fix the scalability issue in allocate_static_memory
- allocate static memory when parse
Penny Zheng (9):
xen/arm: introduce domain on Static Allocation
xen/arm: introduce PGC_reserved
xen/arm: introduce CONFIG_STATIC_ALLOCATION
xen/arm: static memory
In order to differentiate pages of static memory, from those allocated from
heap, this patch introduces a new page flag PGC_reserved to tell.
Signed-off-by: Penny Zheng
---
changes v2:
- remove unused reserved field in struct page_info
- remove unused helper page_get_reserved_owner and
erved-memory.
This patch introduces this new static memory device tree node, and also
documents and parses this new attribute at boot time and
stores related info in static_mem for later initialization.
Signed-off-by: Penny Zheng
---
v2 changes:
- fix typos
- consider reserved-memory binding an
For now, since the feature of Domain on Static Allocation is only supported
on ARM Architecture, this commit introduces new CONFIG_STATIC_ALLOCATION to
avoid bringing dead codes in other archs.
Signed-off-by: Penny Zheng
---
changes v2:
- new commit
---
xen/arch/arm/Kconfig | 3 +++
1 file
. scrub the page in need synchronously.
Signed-off-by: Penny Zheng
---
changes v2:
- rename to nr_mfns
- extract common code from free_heap_pages and free_staticmem_pages
- remove dead codes in other archs, including move some to arm-specific file,
and put some under CONFIG_ARM
- mark
Introduce new interface assign_pages_nr to deal with when page number is
not in a power-of-two, which will save the trouble each time user needs
to split the size in a power of 2 to use assign_pages.
Signed-off-by: Penny Zheng
---
changes v2:
- introduce new interface assign_pages_nr
---
xen
nr_mfns pages of static memory
and assign them to one specific domain.
It uses alloc_staticmen_pages to get nr_mfns pages of static memory,
then on success, it will use assign_pages_nr to assign those pages to
one specific domain.
Signed-off-by: Penny Zheng
---
changes v2:
- use mfn_valid() to do
.
And if the `memory` property and `xen,static-mem` are both set, it shall
be verified that if the memory size defined in both is consistent.
Signed-off-by: Penny Zheng
---
changes v2:
- remove parsing procedure here
- check the consistency when `xen,static-mem` and `memory` are both defined
In the future, user may want to allocate static memory at runtime,
and it is quite important to get the code protected from concurrent
access.
Re-use heap_lock to protect concurrent access in alloc_staticmem_pages.
Signed-off-by: Penny Zheng
---
changes v2:
- new commit
---
xen/common
ranges shall be firstly mapped to the
fixed guest RAM address `GUEST_RAM0_BASE`. And until it exhausts the
`GUEST_RAM0_SIZE`, it will seek to `GUEST_RAM1_BASE`.
`GUEST_RAM0` may take up several pre-defined physical RAM regions.
Signed-off-by: Penny Zheng
---
changes v2:
- rename the values, like
Hi julien
> -Original Message-
> From: Julien Grall
> Sent: Wednesday, June 9, 2021 6:47 PM
> To: Bertrand Marquis
> Cc: Stefano Stabellini ; Julien Grall
> ; Penny Zheng ; xen-
> de...@lists.xenproject.org; Wei Chen ; nd
>
> Subject: Re: [PATCH 01/10] x
Hi Julien
On 2023/7/3 17:20, Julien Grall wrote:
Hi,
On 03/07/2023 06:12, Penny Zheng wrote:
Hi,
On 2023/6/30 23:02, Julien Grall wrote:
Hi,
On 30/06/2023 15:42, Ayan Kumar Halder wrote:
Hi Julien,
On 30/06/2023 12:22, Julien Grall wrote:
On 30/06/2023 11:49, Ayan Kumar Halder wrote
Hi Ayan
On 2023/7/5 21:33, Ayan Kumar Halder wrote:
On 05/07/2023 11:16, Penny Zheng wrote:
Hi Ayan
Hi Penny,
On 2023/7/4 23:10, Ayan Kumar Halder wrote:
Hi Penny,
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper
Hi Ayan
On 2023/7/5 22:01, Ayan Kumar Halder wrote:
Hi Penny,
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when opening attachments, clicking
links, or responding to this email.
A set of
Hi Ayan
On 2023/7/5 22:21, Ayan Kumar Halder wrote:
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when opening attachments, clicking
links, or responding to this email.
VSTCR_EL2, Virtualization
Hi,
On 2023/7/5 21:52, Julien Grall wrote:
Hi,
On 05/07/2023 10:53, Penny Zheng wrote:
Since if not and when anyone wants to update map_pages_to_xen(),
destroy_xen_mappings() and modify_xen_mappings() in the future, it
is possible for them to leave changes in only one file.
The helpers are
Hi, Ayan
On 2023/7/5 23:35, Ayan Kumar Halder wrote:
Hi Penny,
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when opening attachments, clicking
links, or responding to this email.
We inherit
Hi,
Sorry for the late reply. Got sidetracked by other tasks...
On 2023/1/19 22:20, Julien Grall wrote:
Hi,
On 13/01/2023 05:28, Penny Zheng wrote:
From: Wei Chen
Xen defines some global configuration macros for Arm in
config.h. We still want to use it for Armv8-R systems, but
there are
This is a design doc for GICv4.0 vLPI support.
Signed-off-by: Penny Zheng
---
docs/designs/gicv4_vlpi.md | 333 +
1 file changed, 333 insertions(+)
create mode 100644 docs/designs/gicv4_vlpi.md
diff --git a/docs/designs/gicv4_vlpi.md b/docs/designs
h, we make ARM_EFI selectable for Arm64, and
based on that, we can use CONFIG_ARM_EFI to gate the EFI
specific code in head.S for those images that will not be
booted in EFI environment.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v1 -> v2:
1. New patch
---
v3:
1. doc fix
---
xen/
From: Wei Chen
These two variables are stale variables, they only have declarations
in config.h, they don't have any definition and no any code is using
these two variables. So in this patch, we remove them from config.h.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
Acked-by: J
-platforms/arm-ecosystem-models
[4] https://lists.xenproject.org/archives/html/xen-devel/2022-11/msg00289.html
[5] https://gitlab.com/xen-project/people/weic/xen/-/tree/integration/mpu_v3
[6] https://armv8r64-refstack.docs.arm.com/en/v5.0/
Penny Zheng (41):
xen/arm: introduce CONFIG_HAS_MMU
xen/arm: mm
enable_boot_mmu for boot CPU and
enable_runtime_mmu for secondary CPUs in this patch.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v3:
- new patch
---
xen/arch/arm/arm64/head.S | 87 +++
1 file changed, 70 insertions(+), 17 deletions(-)
diff --git a
we add !HAS_MPU dependency for these platforms.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v1 -> v2:
1. Remove the platform header fvp_baser.h.
2. Remove the default start address for fvp_baser64.
3. Remove the description of default address from commit log.
4. Change HAS_MPU
script, we force the .text.idmap contents to linked
after .text.header. This will ensure code of head.S always be
at the top of Xen binary.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v1 -> v2:
1. New patch.
---
v3:
1. adapt to changes to "_end_boot"
---
xen/arch/arm/xen.l
by MMU and MPU later,
we move them to macros.h.
Rename enable_boot_mmu()/enable_runtime_mmu() to a more generic name
enable_boot_mm()/enable_runtime_mm(), in order to make them common interfaces
to be used for both MMU and later MPU system.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v
of code comments.
2. Fix the indentations for .text.header section.
3. Rename puts() to asm_puts() for global export
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v1 -> v2:
1. New patch.
---
v3:
1. fix commit message
2. Rename puts() to asm_puts() for global export
---
xen/arch/
CONFIG_HAS_MPU to gate these definitions will result
in a messy and hard-to-read/maintain code.
So we keep some common definitions still in config.h, but move MMU
related definitions to a new file - mmu/layout.h to avoid spreading
"#ifdef" everywhere.
Signed-off-by: Wei Chen
Signed-off
In free_init_memory, we do not need to map the whole init section RW,
as only init text section is mapped RO in boot time.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/mm.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a
metable is successfully initialized, the convertion between machine frame
number/machine address/"virtual address" and page-info structure is
ready too, like mfn_to_page/maddr_to_page/virt_to_page, etc
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- add ASSERT() to confirm
EL1/EL0 and EL2
- VMSAv8-64 at EL1/EL0 and PMSAv8-64 at EL2
The default option will be the second, unless the platform could not support,
which could be checked against MSA_frac bit in Memory Model Feature Register 0(
ID_AA64MMFR0_EL1).
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3
follow the
rule of "map in demand" in MPU, we implement MPU version of ioremap_xxx,
through mapping the memory with a transient MPU memory region.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- adapt to the new rule of "map in demand"
---
xen/arch/arm/include/a
Function p2m_lookup() is responsible for looking up an entry in p2m
table. In MPU system, We check whether mapping exists. If it does, we
get the details of the guest MPU memory region in domain P2M table(p2m->root)
through p2m_get_mpu_region()
Signed-off-by: Penny Zheng
Signed-off-by: Wei C
do_mmio_trap_stage2_abort_guest().
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/traps.c | 81 +---
1 file changed, 54 insertions(+), 27 deletions(-)
diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index ef5c6a8195..bffa147c36
virtual address to remove the mapping.
As it is not workable for MPU, we pass the FDT physical address
in remove_early_mappings() for MPU to destroy the mapping.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- adapt to the change of mapping FDT in two 2MB chunks if needed
---
xen/arch
As we are not introduing features like SMP, SET/WAY emulation, etc,
in MPU system, so we create empty stubs of function/variables and
warnings for these UNSUPPORTED features.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/arm64/mpu/head.S | 6
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
---
v3:
- new patch
---
xen/drivers/passthrough/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/xen/drivers/passthrough
modification is not supported, as in worst case, it will
leave three fragments behind.
In MPU system, we map init text and init data section, each with a MPU memory
region. So we shall destroy it seperately in free_init_memory().
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- As
.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- select ARCH_MAP_DOMAIN_PAGE and ARM_SECURE_STATE
- remove platform-specific config: CONFIG_ARM_V8R
---
xen/arch/arm/Kconfig | 14 +-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/xen/arch/arm/Kconfig b/xen
flow unchanged.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- alias CNTHP_*_EL2 to CNTHPS_*_EL2 to avoid renaming
---
xen/arch/arm/Kconfig | 4
xen/arch/arm/include/asm/arm64/sysregs.h | 15 +++
2 files changed, 19 insertions(+)
diff --git a/xen
hich determines VMID for the
EL1-Guest-OS.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/include/asm/mpu/mm.h | 3 ++
xen/arch/arm/include/asm/p2m.h| 5 +++
xen/arch/arm/mpu/mm.c | 22 ++
xen/arch/arm/mpu/p2m.c
new setup_fixmap.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new patch
---
xen/arch/arm/arm64/head.S | 3 +++
xen/arch/arm/arm64/mmu/head.S | 24 +---
2 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/xen/arch/arm/arm64/head.S b/xen/arch
codes with new Kconfig
CONFIG_HAS_PAGING_MEMPOOL in common codes.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new patch
---
xen/arch/arm/Kconfig| 1 +
xen/arch/arm/domain.c | 2 ++
xen/arch/arm/domain_build.c | 2 ++
xen/arch/arm/p2m.c | 2 ++
xen/arc
to PAGE_SIZE,
or we may map more than necessary in MPU system.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- map the early UART with a hardcoded MPU memory region
- error when uart size doesn't align with PAGE_SIZE
---
xen/arch/arm/Kconfig.debug | 7 +++
xen
on through PRENR_EL2 which provides direct access to the
PRLAR_EL2.EN bits of EL2 MPU regions.
Rignt now, we only support destroying a *WHOLE* MPU memory region,
part-region removing is not supported, as in worst case, it will
leave two fragments behind.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Ch
When implementing MPU version of copy_from_paddr, if source physical address
is not accessible, we shall map it temporarily with a transient MPU
memory region for copying and pasting.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new patch
---
xen/arch/arm/include/asm/mpu/mm.h
d lots of #ifdef in memory management code
and header files.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v2:
- new patch
---
v3:
- introduce new directories: mmu/ which includes MMU-specific codes
- rename init_ttbr to init_mm, mmu_init_secondary_cpu() to
mm_init_seco
address
mappings and associated memory properties held in memory-mapped tables
known as translation tables.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new patch
---
xen/arch/arm/Kconfig | 8
1 file changed, 8 insertions(+)
diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm
disabled.
Since the default memory map of the Armv8-R AArch64
architecture is IMPLEMENTATION DEFINED, we always turn off
the Background region.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- introduce code clearing SCTLR_EL2.BR
- document the reason of isb
---
xen/arch/arm/arm64
attribute Index
[3:4] Execute Never
[5:6] Access Permission
[7] Region Present
Also, we provide a set of definitions(REGION_HYPERVISOR_RW, etc) that combine
the memory attribute and permission for common combinations.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- implement pr_set_base
: Penny Zheng
Signed-off-by: Wei Chen
---
v2:
- new commit
---
v3:
- remove MPU stubs
- adapt to the introduction of new directories: mmu/
---
xen/arch/arm/Makefile |1 +
xen/arch/arm/include/asm/mmu/p2m.h | 18 +
xen/arch/arm/include/asm/p2m.h | 30 +-
xen/arch/arm/mmu/p2m.c
contents are MPU specific.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v3:
- new commit
---
xen/arch/arm/include/asm/config.h | 2 ++
xen/arch/arm/include/asm/mpu/layout.h | 32 +++
2 files changed, 34 insertions(+)
create mode 100644 xen/arch/arm/include/asm
A set of helpers dump_xxx and show_registers are responsible for
dumping memory mapping info and register info when debugging.
In this commit, we implement them all in MPU system too.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/include/asm/mpu/mm.h
: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- Fix typos
- Move the implementation from mm/mpu.h to mm.h, to share as much as
possible with MMU system.
---
xen/arch/arm/include/asm/mm.h | 15 +++
1 file changed, 15 insertions(+)
diff --git a/xen/arch/arm/include/asm/mm.h b/xen/arch
, we also just need to implement MPU version of ioremap_xxx.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/kernel.c | 12
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/xen/arch/arm/kernel.c b/xen/arch/arm/kernel.c
index
e PA space, we keep SA bit as 0.
VSTCR_EL2.SC is NS check enable bit.
To make sure that Stage 2 NS configuration is checked against stage 1
NS configuration in EL1&0 translation regime for the given address, and
generates a fault if they are different, we set SC bit 1.
Signed-off-by: Penny Zheng
later commit.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/kernel.c| 27 ---
xen/arch/arm/mmu/setup.c | 27 +++
2 files changed, 27 insertions(+), 27 deletions(-)
diff --git a/xen/arch/arm/kernel.c b
From: Wei Chen
There is no VMSA support on MPU systems, so we can not map early
UART to FIXMAP_CONSOLE. In stead, we can use PA == VA for early
UART on MPU systems.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
v2:
1. New patch
---
v3:
1. fix comment
2. change CONFIG_ARM_V8R to
Kconfig CONFIG_HAS_VMAP, and make it only
support in MMU system on ARM architecture. And we make features like
ALTERNATIVE, CPUERRATA, LIVEPATCH, Grant Table, etc, now depend on VMAP.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v2:
- new commit
---
v3:
- make LIVEPATCH/ALTERNATIVE
ap on demand", to map static memory
temporarily before its initialization, and unmap immediately after its
initialization.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/include/asm/mm.h | 2 ++
xen/arch/arm/mmu/mm.c | 10 ++
xen/ar
on is accessible through PRBAR0_EL2 and PRLAR0_EL2
- Region 17 configuration is accessible through PRBAR1_EL2 and PRLAR1_EL2
- Region 18 configuration is accessible through PRBAR2_EL2 and PRLAR2_EL2
- ...
- Region 31 configuration is accessible through PRBAR15_EL2 and PRLAR15_EL2
Signed-off-by: Pen
try()
- insert the new entry into domain P2M table(p2m->root)
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/include/asm/arm64/mpu.h | 3 +-
xen/arch/arm/include/asm/mpu/mm.h| 6 +
xen/arch/arm/include/asm/p2m.h | 3 +
xen/arch/arm/mp
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/include/asm/arm64/sysregs.h | 3 ++
xen/arch/arm/include/asm/page.h | 4 ++
xen/arch/arm/mpu/mm.c| 6 ++-
xen/arch/arm/mpu/p2m.c | 61 +++
init data section. we introduce a new helper
xen_is_using_staticheap to tell whether Xenheap is statically configured in
Device Tree. It is always returning false when !CONFIG_STATIC_MEMORY,
since static heap depends on static memory feature.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3
/setup.c, setup_mm_mappings
, with a more generic name, is introduced to replace setup_pagetables.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- introduce bitmap xen_mpumap_mask for dynamic allocation on MPU regions
---
xen/arch/arm/include/asm/arm64/mpu.h | 1 +
xen/arch/arm
components differently
in MPU, like xenheap, etc. There are some components that is specific to
MMU only, like direct-mapping.
In the commit, we move MMU-specific components into mmu/setup.c, in preparation
of implementing MPU version of setup_mm later in future commit.
Signed-off-by: Penny Zheng
Signed
releated codes, then
we fold it into MMU system.
Since PMAP relies on FIXMAP, so we fold it too into MMU system.
Under !CONFIG_HAS_FIXMAP, we provide empty stubbers for not breaking
compilation.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v1 -> v2
- new patch
---
v3:
- f
MPU memory region, as
it will be relocated into heap and unmapped at the end of boot.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- map the first 2MB. Check the size and then re-map with an extra 2MB if needed
---
xen/arch/arm/include/asm/arm64/mpu.h | 3 ++-
xen/arch/arm/include
In order to enable device passthrough in MPU system, we only need to
provide p2m_mmio_direct_dev permission set up.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new commit
---
xen/arch/arm/mpu/p2m.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a
In MPU system, we implement map_domain_page()/unmap_domain_page()
through mapping the domain page with a transient MPU region on demand.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- new patch
---
xen/arch/arm/Makefile | 4 ++
xen/arch/arm/include/asm/mpu/mm.h | 1
The layout shall be compliant with what we describe in xen.lds.S,
or the codes need adjustment.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
v3:
- cache maintanence for safety when modifying MPU memory mapping table
- Hardcode index for all data/text sections
- To make sure that
In MPU system, resource, like Xenheap, must be statically configured to
meet the requirement of static system with expected behavior.
Then, in MPU version of setup_mm, we introduce setup_staticheap_mappings to
map fixed MPU memory region for static Xenheap.
Signed-off-by: Penny Zheng
Signed-off
Hi Jan
On 2023/6/26 14:00, Jan Beulich wrote:
On 26.06.2023 05:34, Penny Zheng wrote:
--- a/xen/arch/x86/Kconfig
+++ b/xen/arch/x86/Kconfig
@@ -27,6 +27,7 @@ config X86
select HAS_PDX
select HAS_SCHED_GRANULARITY
select HAS_UBSAN
+ select HAS_VMAP
With this
Hi Jan
On 2023/6/26 15:01, Jan Beulich wrote:
On 26.06.2023 05:34, Penny Zheng wrote:
--- a/xen/common/Kconfig
+++ b/xen/common/Kconfig
@@ -54,6 +54,9 @@ config HAS_IOPORTS
config HAS_KEXEC
bool
+config HAS_PAGING_MEMPOOL
+ bool
+
config HAS_PDX
bool
--- a/xen
Hi Julien
On 2023/6/28 15:59, Julien Grall wrote:
Hi,
On 28/06/2023 06:38, Penny Zheng wrote:
On 2023/6/26 14:00, Jan Beulich wrote:
On 26.06.2023 05:34, Penny Zheng wrote:
--- a/xen/common/vmap.c
+++ b/xen/common/vmap.c
@@ -331,4 +331,11 @@ void vfree(void *va)
while ( (pg
Hi Ayan
On 2023/6/28 18:08, Ayan Kumar Halder wrote:
(Forgot to cc)
On 28/06/2023 11:05, Ayan Kumar Halder wrote:
Hi Penny,
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when opening attachments
Hi,
On 2023/6/29 23:14, Julien Grall wrote:
Hi,
On 29/06/2023 15:44, Ayan Kumar Halder wrote:
On 29/06/2023 15:23, Andrew Cooper wrote:
On 29/06/2023 3:20 pm, Ayan Kumar Halder wrote:
On 26/06/2023 04:34, Penny Zheng wrote:
diff --git a/xen/arch/arm/include/asm/mm.h
b/xen/arch/arm/include
Hi,
On 2023/6/29 22:50, Ayan Kumar Halder wrote:
On 29/06/2023 15:29, Julien Grall wrote:
Hi,
On 29/06/2023 15:05, Ayan Kumar Halder wrote:
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when
Hi,
On 2023/6/30 01:22, Ayan Kumar Halder wrote:
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when opening attachments, clicking
links, or responding to this email.
In MPU system, MPU memory
Hi,
On 2023/6/30 23:02, Julien Grall wrote:
Hi,
On 30/06/2023 15:42, Ayan Kumar Halder wrote:
Hi Julien,
On 30/06/2023 12:22, Julien Grall wrote:
On 30/06/2023 11:49, Ayan Kumar Halder wrote:
On 30/06/2023 05:07, Penny Zheng wrote:
Hi,
Hi Penny,
On 2023/6/30 01:22, Ayan Kumar
Hi Ayan
On 2023/6/30 23:19, Ayan Kumar Halder wrote:
Hi Penny,
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when opening attachments, clicking
links, or responding to this email.
Xen is using
Hi Ayan
On 2023/7/1 00:17, Ayan Kumar Halder wrote:
On 26/06/2023 04:34, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and caution when opening attachments, clicking
links, or responding to this email.
This commit expands
Hi Julien
On 2023/7/5 05:24, Julien Grall wrote:
Hi Penny,
On 26/06/2023 04:33, Penny Zheng wrote:
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
Hi Julien and Ayan
On 2023/7/4 20:04, Ayan Kumar Halder wrote:
On 04/07/2023 12:44, Julien Grall wrote:
Hi,
On 04/07/2023 12:14, Ayan Kumar Halder wrote:
On 26/06/2023 04:33, Penny Zheng wrote:
CAUTION: This message has originated from an External Source. Please
use proper judgment and
Hi Julien
On 2023/7/5 05:35, Julien Grall wrote:
Hi Penny,
On 26/06/2023 04:33, Penny Zheng wrote:
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
Hi Julien
On 2023/7/5 05:46, Julien Grall wrote:
Hi Penny,
On 26/06/2023 04:33, Penny Zheng wrote:
From: Wei Chen
There are lots of MMU specific code in head.S. This code will not
be used in MPU systems. If we use #ifdef to gate them, the code
will become messy and hard to maintain. So we
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