c-mem` feature, 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
---
docs/misc/arm/device-tree/booting.txt | 40 +
xen/arch/arm/bootfdt.c
, such that the compiler would point out that adjustments at call
sites are needed.
Signed-off-by: Penny Zheng
---
v4 change:
- in all cases where order-0 pages get passed, prefer using assign_pages
to pass literal 1
- reconstruct the order of assign_pages parameters
- remove the unnecessary
new CONFIG_STATIC_MEMORY to avoid bringing dead
codes in other archs.
Put asynchronous scrubbing for pages of static memory in TODO list.
Signed-off-by: Penny Zheng
---
v4 change:
- move the option CONFIG_STATIC_MEMORY to common code, and with Arm
"select"ing it
- replace round_
the moment.
Signed-off-by: Penny Zheng
---
xen/arch/arm/domain_build.c | 37 -
1 file changed, 36 insertions(+), 1 deletion(-)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 6c86d52781..cdb16f2086 100644
--- a/xen/arch/arm/doma
contiguous pages of static memory
and assign them to one specific domain.
It uses acquire_staticmem_pages to acquire nr_mfns pre-configured pages of
static memory, then on success, it will use assign_pages to assign those pages
to one specific domain.
Signed-off-by: Penny Zheng
---
v4 change
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`, and so on.
`GUEST_RAM0` may take up several pre-defined physical RAM regions.
Signed-off-by: Penny Zheng
---
xen/arch/arm/domain_build.c | 137
This commit defines a new helper mark_page_free to extract common code,
like following the same cache/TLB coherency policy, between free_heap_pages
and the new function free_staticmem_pages, which will be introduced later.
Signed-off-by: Penny Zheng
Acked-by: Jan Beulich
---
xen/common
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Wednesday, August 11, 2021 9:32 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 01/10] xen/arm: in
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Wednesday, August 11, 2021 9:35 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 02/10] xen/a
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Wednesday, August 11, 2021 9:48 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 03/10] xen/arm:
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Friday, August 13, 2021 8:21 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 05/10] xen/arm: static memor
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Friday, August 13, 2021 8:22 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 06/10] xen/arm: introduce PG
Hi Julien,
> -Original Message-
> From: Julien Grall
> Sent: Friday, August 13, 2021 9:00 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 08/10] xen/arm: introduce
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Friday, August 13, 2021 9:12 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 09/10] xen/arm: check &
Hi julien
> -Original Message-
> From: Julien Grall
> Sent: Friday, August 13, 2021 9:37 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 10/10] xen/arm: introduc
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, August 17, 2021 1:28 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 01/10] xen/arm: in
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, August 17, 2021 1:44 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 08/10] xen/arm: introduce acqui
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, August 17, 2021 1:55 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 10/10] xen/arm: introduc
Hi Julian and Jan
> -Original Message-
> From: Julien Grall
> Sent: Friday, August 13, 2021 8:27 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH V4 07/10] xen: re
ole
hardware resource, or bind to one specific xen domain node, through
"xen,static-mem"
Signed-off-by: Penny Zheng
---
v5 changes:
- check the node using the Xen domain binding whether contains the property
"xen,static-mem", not the property itself
- add "rc = ..."
A few functions iterate over the device tree property to get memory info,
like "reg" or the later "xen,static-mem", so this commit creates a new helper
device_tree_get_meminfo to extract the common codes.
Signed-off-by: Penny Zheng
---
xen/arc
2m_insert_mapping() and introduce guest_physmap_add_pages
to cope with adding guest RAM p2m mapping with nr_pages.
- check both pbase and psize are page aligned
- simplify the code in the loops by moving append_static_memory_to_bank()
outside of the if/else.
---
TODO:
- reboot domain on static alloc
be potentially non-trivial. As the function is internal, pass the MFN and
the page. They are both expected to match.
Signed-off-by: Penny Zheng
Acked-by: Jan Beulich
Reviewed-by: Julien Grall
---
xen/common/page_alloc.c | 89 ++---
1 file changed, 48
introduces a new page flag PGC_reserved, then mark pages of
static memory PGC_reserved when initializing them.
Signed-off-by: Penny Zheng
---
v5 changes
- bundle all the functions for static allocation in a single place
- return an error and revert the changes, when the page is not free
and reserved
new CONFIG_STATIC_MEMORY to wrap all
static-allocation-related codes.
Put asynchronous scrubbing for pages of static memory in TODO list.
Signed-off-by: Penny Zheng
---
v5 change:
- make CONFIG_STATIC_MEMORY user selectable and gated by UNSUPPORTED.
- wrap all static-allocation-related codes
In order to deal with the trouble of count-to-order conversion when page number
is not in a power-of-two, this commit re-define assign_pages for nr pages and
assign_page for original page with a single order.
Signed-off-by: Penny Zheng
Acked-by: Jan Beulich
---
v5 change:
- Having both
function guest_physmap_add_pages to cope with adding guest RAM p2m
mapping with nr_pages.
Signed-off-by: Penny Zheng
---
v5 changes:
- don't split comment over multi-line (even they are more than 80 characters)
- simply use dt_find_property(node, "xen,static-mem", NULL) to tel
> -Original Message-
> From: Julien Grall
> Sent: Sunday, January 8, 2023 7:44 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk
> Subject: Re: [PATCH v1 01/13] xen/arm: re-a
Hi Julien
Happy new year
> -Original Message-
> From: Julien Grall
> Sent: Sunday, January 8, 2023 8:53 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk
> Subject: Re:
> -Original Message-
> From: Julien Grall
> Sent: Sunday, January 8, 2023 8:23 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk
> Subject: Re: [PATCH v1 05/13] xen/arm: allocate
> -Original Message-
> From: Julien Grall
> Sent: Monday, January 9, 2023 6:58 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk
> Subject: Re: [PATCH v1 06/13] xen/arm: assig
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, January 10, 2023 2:23 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk
> Subject: Re: [PATCH v1 06/13] xen/arm: assig
From: Wei Chen
Currently, ARM_EFI will mandatorily selected by Arm64.
Even if the user knows for sure that their images will not
start in the EFI environment, they can't disable the EFI
support for Arm64. This means there will be about 3K lines
unused code in their images.
So in this patch, we m
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
Acked-by: Julien Grall
---
v1 -> v2:
1. Add Ab.
From: Wei Chen
>From Arm ARM Supplement of Armv8-R AArch64 (DDI 0600A) [1],
section D1.6.2 TLB maintenance instructions, we know that
Armv8-R AArch64 permits an implementation to cache stage 1
VMSAv8-64 and stage 2 PMSAv8-64 attributes as a common entry
for the Secure EL1&0 translation regime. Bu
ocs.arm.com/en/v5.0/
Penny Zheng (28):
xen/mpu: build up start-of-day Xen MPU memory region map
xen/mpu: introduce helpers for MPU enablement
xen/mpu: introduce unified function setup_early_uart to map early UART
xen/arm64: head: Jump to the runtime mapping in enable_mm()
xen/
From: Wei Chen
On Armv8-A, Xen has a fixed virtual start address (link address
too) for all Armv8-A platforms. In an MMU based system, Xen can
map its loaded address to this virtual start address. So, on
Armv8-A platforms, the Xen start address does not need to be
configurable. But on Armv8-R pla
From: Wei Chen
We want to reuse head.S for MPU systems, but there are some
code implemented for MMU systems only. We will move such
code to another MMU specific file. But before that, we will
do some preparations in this patch to make them easier
for reviewing:
1. Fix the indentations of code com
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 move MMU related
code to head_mmu.S, and keep common code still in head.S.
And some assembly macros that
From: Wei Chen
Only the first 4KB of Xen image will be mapped as identity
(PA == VA). At the moment, Xen guarantees this by having
everything that needs to be used in the identity mapping
in head.S before _end_boot and checking at link time if this
fits in 4KB.
In previous patch, we have moved t
From: Wei Chen
There is no VMSA support on Armv8-R AArch64, so we can not map early
UART to FIXMAP_CONSOLE. Instead, we use PA == VA to define
EARLY_UART_VIRTUAL_ADDRESS on Armv8-R AArch64.
Signed-off-by: Wei Chen
---
1. New patch
---
xen/arch/arm/include/asm/early_printk.h | 12
From: Wei Chen
copy_from_paddr will map a page to Xen's FIXMAP_MISC area for
temporary access. But for those systems do not support VMSA,
they can not implement set_fixmap/clear_fixmap, that means they
can't always use the same virtual address for source address.
In this case, we introduce to he
From: Penny Zheng
The start-of-day Xen MPU memory region layout shall be like as follows:
xen_mpumap[0] : Xen text
xen_mpumap[1] : Xen read-only data
xen_mpumap[2] : Xen read-only after init data
xen_mpumap[3] : Xen read-write data
xen_mpumap[4] : Xen BSS
..
xen_mpumap[max_xen_mpumap - 2
generic name, is introduced and act as an empty stub in
MPU system.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/include/asm/mm.h | 2 ++
xen/arch/arm/include/asm/mm_mpu.h | 16
xen/arch/arm/setup.c | 2 +-
3 files changed, 19 insertions
timer code flow unchanged.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/Kconfig | 7 +++
xen/arch/arm/include/asm/arm64/sysregs.h | 21 -
xen/arch/arm/include/asm/cpregs.h| 4 ++--
xen/arch/arm/time.c
add . = ALIGN(PAGE_SIZE); in the head of dtb section to make it happen.
In this commit, we map early FDT with a transient MPU memory region at
rear with REGION_HYPERVISOR_BOOT.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/include/asm/arm64/mpu.h | 5 +++
xen/arch/arm
address as the output.
We should overide virt_to_mfn/mfn_to_virt in source file mm_mpu.c the
same way in mm_mmu.c.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/include/asm/mm.h | 26 --
xen/arch/arm/include/asm/mm_mmu.h | 26
Introduce a Kconfig option to enable Armv8-R64 architecture
support. STATIC_MEMORY and HAS_MPU will be selected by
ARM_V8R by default, because Armv8-R64 only has PMSAv8-64 on secure-EL2
and only supports statically configured system.
Signed-off-by: Wei Chen
---
xen/arch/arm/Kconfig | 13
in memory management code and header files.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
xen/arch/arm/Makefile |5 +
xen/arch/arm/include/asm/mm.h | 19 +-
xen/arch/arm/include/asm/mm_mmu.h | 35 +
xen/arch/arm/mm.c | 1352
, to avoid MPU memory
region overlapping.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/include/asm/arm64/mpu.h | 6 --
xen/arch/arm/include/asm/setup.h | 1 +
xen/arch/arm/mm_mpu.c| 14 +-
xen/arch/arm/setup_mpu.c | 5
the other static
memory section mapping will be introduced later.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/Makefile | 2 +
xen/arch/arm/include/asm/mm_mpu.h | 5 +++
xen/arch/arm/mm_mpu.c | 41 ++
xen/arch/arm/setup_mpu.c
also move MMU-specific definitions to p2m_mmu.h, like P2M_ROOT_LEVEL and
function p2m_tlb_flush_sync.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/Makefile |5 +
xen/arch/arm/include/asm/p2m.h | 17 +-
xen/arch/arm/include/asm/p2m_mmu.h | 28 +
xen
here we only add a check to verify this assumption.
But for tolerating a few cases where the function is called to map for
temporary copy and paste, like ioremap_wc in kernel image loading, the
region attribute mismatch will be treated as warning than error.
Signed-off-by: Penny Zheng
Signed-off-by
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 some address related macros that are defined for
MMU systems. These macros will not be used by MPU systems,
Adding ifdefery with CONFIG_HAS_MPU to gate these
modify_xen_mappings is introduced to modify permission of the
existing valid MPU memory region.
Then we nuke the instruction cache to remove entries related to init
text.
At last, we destroy these two MPU memory regions referring init text and
init data using destroy_xen_mappings.
Signed-off-by: Penny Zheng
Signed
permission for common combinations.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/include/asm/arm64/mpu.h | 72 +++
xen/arch/arm/mm_mpu.c| 276 ++-
2 files changed, 340 insertions(+), 8 deletions(-)
diff --git a/xen/arch/arm
In MMU system, we map the UART in the fixmap (when earlyprintk is used).
However in MPU system, we map the UART with a transient MPU memory
region.
So we introduce a new unified function setup_early_uart to replace
the previous setup_fixmap.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
ccessfully 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
---
xen/arch/arm/include/asm/mm.h | 15 -
also
avoid creating empty function for MPU system, trying to keep only one codeflow
in arm64/head.S, we move path switch and remove_identity_mapping() in
enable_mm() on MMU system.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/arm64/head.S | 28
configuration 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
on through PRENR_EL2 which provides direct access to the
PRLAR_EL2.EN bits of EL2 MPU regions.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/include/asm/arm64/mpu.h | 20 ++
xen/arch/arm/include/asm/arm64/sysregs.h | 3 +
xen/arch/arm/mm_mpu.c
MPU system
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/Kconfig | 3 ++-
xen/arch/arm/include/asm/fixmap.h | 28 +---
xen/common/Kconfig| 3 +++
3 files changed, 30 insertions(+), 4 deletions(-)
diff --git a/xen/arch
sthrough module(BOOTMOD_GUEST_DTB), and ramdisk module(BOOTMOD_RAMDISK).
We also shall check if any guest RAM through "xen,static-mem" is within
the guest memory section.
Function mpu_memory_section_contains is introduced to do above check.
Signed-off-by: Penny Zheng
Signed-off-by: We
n the
front, and switching ones in the heels of them.
We define a MPU memory region mapping table(sw_mpumap) to store all
switching regions. After disabling them at its original position, we
re-enable them at re-ordering position.
Signed-off-by: Penny Zheng
---
xen/arch/arm/include/asm/arm64/mpu.h
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
---
xen/arch/arm/include/asm/arm64/sysregs.h | 6 ++
xen/arch/arm/include/asm/cpufeature.h| 7 ++
xen/arch/arm/include/asm/p2m.h
copy_from_paddr in MPU system,
we need to check whether a given paddr is properly mapped.
Signed-off-by: Wei Chen
Signed-off-by: Penny Zheng
---
xen/arch/arm/kernel.c | 2 +-
xen/arch/arm/mm_mpu.c | 21 +
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/xen/arch
xenheap, and some components could not be applied in MPU system,
like direct-mapping.
In the commit, we move setup_mm and its related functions and
variables to setup_mmu.c in preparation of implementing MPU
version of setup_mm later in future commits
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
patch, we disable VMAP for MPU systems, and some
features depending on VMAP also need to be disabled at the same
time, Like ALTERNATIVE, CPU ERRATA.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/Kconfig | 3 +-
xen/arch/arm/Makefile | 2
the default memory map of the Armv8-R AArch64 architecture is
IMPLEMENTATION DEFINED, we always turn off the Background region.
In this patch, we also introduce a neutral name enable_mm for
Xen to enable MMU/MPU. This can help us to keep one code flow
in head.S
Signed-off-by: Penny Zheng
Signed
From: Wei Chen
As we have not implmented guest support in part#1 series of MPU
support, Xen can not create any guest in boot time. So in this
patch we make Xen boot to idle on MPU system for reviewer to
test part#1 series.
THIS PATCH IS ONLY FOR TESTING, NOT FOR REVIEWING.
Signed-off-by: Wei Ch
idle vcpu entering.
We introduce a bit in region "region.prlar.sw"(struct pr_t region) to
indicate this kind of feature.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/include/asm/arm64/mpu.h | 14 ++---
xen/arch/arm/mm_mpu.c| 47 +++
guests' boot mudules.
Users shall make sure that any guest boot module defined in Device Tree is
within the section, including kernel module(BOOTMOD_KERNEL), device tree
passthrough module(BOOTMOD_GUEST_DTB), and ramdisk module(BOOTMOD_RAMDISK).
Signed-off-by: Penny Zheng
Signed-off-by: Wei
remove_early_mappings, we destroy MPU memory
region of early FDT mapping.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
---
xen/arch/arm/mm_mpu.c| 4
xen/arch/arm/setup.c | 25 -
xen/arch/arm/setup_mmu.c | 25 +
xen/arch/arm
lso introduces "#mpu,guest-memory-section" as an example, for
limiting the scattering of static memory as guest RAM.
Guest RAM shall be not only statically configured through "xen,static-mem"
property in MPU system, but also shall be defined inside
outside "mpu,guest-memory-
> -Original Message-
> From: Julien Grall
> Sent: Friday, January 13, 2023 6:07 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk ; Julien Grall
>
> Subject: Re: [PATC
Create one design doc for 1:1 direct-map and static allocation.
It is the first draft and aims to describe why and how we allocate
1:1 direct-map(guest physical == physical) domains, and why and how
we let domains on static allocation.
Signed-off-by: Penny Zheng
---
docs/designs
the page in need
Signed-off-by: Penny Zheng
---
xen/arch/arm/setup.c| 2 ++
xen/common/page_alloc.c | 70 +
xen/include/xen/mm.h| 3 ++
3 files changed, 75 insertions(+)
diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index 444dbbd676
Other features will be delievered through different patch series.
Penny Zheng (10):
xen/arm: introduce domain on Static Allocation
xen/arm: handle static memory in dt_unreserved_regions
xen/arm: introduce PGC_reserved
xen/arm: static memory initialization
xen/arm: introduce alloc_staticmem_
page_get_reserved_owner and page_set_reserved_owner are
designated to get/set reserved page's owner.
Struct domain is enlarged to more than PAGE_SIZE, due to newly-imported
struct reserved in struct page_info.
Signed-off-by: Penny Zheng
---
xen/include/asm-arm/mm.h | 16 +++-
1 file change
c-mem` property to define static
memory nodes in device tree file.
This patch 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
---
docs/misc/arm/device-tree/booting.txt | 33 +
xen/arc
free. It shall also do a set of necessary
initialization, which are mostly the same ones in alloc_heap_pages,
like, following the same cache-coherency policy and turning page
status into PGC_state_used, etc.
Signed-off-by: Penny Zheng
---
xen/common/page_alloc.c | 64
static memory regions overlap with memory nodes. The
overlapping memory is reserved-memory and should be
handled accordingly:
dt_unreserved_regions should skip these regions the
same way they are already skipping mem-reserved regions.
Signed-off-by: Penny Zheng
---
xen/arch/arm/setup.c | 39
Function parameter order in assign_pages is always used as 1ul << order,
referring to 2@order pages.
Now, for better compatibility with new static memory, order shall
be replaced with nr_pfns pointing to page count with no constraint,
like 250MB.
Signed-off-by: Penny Zheng
---
xen/arch/
those pages to
one specific domain, including using page_set_reserved_owner to set its
reserved domain owner.
Signed-off-by: Penny Zheng
---
xen/common/page_alloc.c | 53 +
xen/include/xen/mm.h| 4
2 files changed, 57 insertions(+)
diff --git a
st
to link pages of static memory. Let page_to_list return reserved_page_list,
when flag is PGC_reserved.
Later, when domain get destroyed or restarted, those new values will help
relinquish memory to proper place, not been given back to heap.
Signed-off-by: Penny Zheng
---
xen/common/domain
allocate_static_memory is missing, and
will be introduced later. It just BUG() out at the moment.
Signed-off-by: Penny Zheng
---
xen/arch/arm/domain_build.c | 58
xen/include/asm-arm/domain.h | 3 ++
2 files changed, 56 insertions(+), 5 deletions(-)
diff --git a/xen/arch/arm
GUEST_RAM0_BASE, GUEST_RAM1_BASE.
Signed-off-by: Penny Zheng
---
xen/arch/arm/domain_build.c | 157 +++-
1 file changed, 155 insertions(+), 2 deletions(-)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 30b55588b7..9f662313ad 100644
--- a/xen
Hi Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 3:39 PM
> To: Penny Zheng
> Cc: Bertrand Marquis ; Wei Chen
> ; nd ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 08/10] xen/arm: intr
Hi Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 3:35 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 Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 3:28 PM
> To: Penny Zheng
> Cc: Bertrand Marquis ; Wei Chen
> ; nd ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 06/10] xen: repla
Hi Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 3:24 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 Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 3:16 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 Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 4:58 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 Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 5:46 PM
> 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: Tuesday, May 18, 2021 6:01 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 04/10] xen/arm: static memor
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 6:15 PM
> To: Penny Zheng ; 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: Tuesday, May 18, 2021 6:21 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 06/10] xen: replace order with
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 6:30 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 07/10] xen/arm: intruduce alloc
Hi Julien
> -Original Message-
> From: Julien Grall
> Sent: Tuesday, May 18, 2021 7:02 PM
> To: Penny Zheng ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org
> Cc: Bertrand Marquis ; Wei Chen
> ; nd
> Subject: Re: [PATCH 08/10] xen/arm: introduce re
Hi Jan
> -Original Message-
> From: Jan Beulich
> Sent: Tuesday, May 18, 2021 7:25 PM
> To: Penny Zheng
> Cc: Bertrand Marquis ; Wei Chen
> ; nd ; xen-devel@lists.xenproject.org;
> sstabell...@kernel.org; jul...@xen.org
> Subject: Re: [PATCH 08/10] xen/arm: intr
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