Add yaml file for 'xen,xen', because without it an appropriate
'CONFIG_DT_HAS_XEN_XEN_ENABLED' isn't generated.
It will be used for checking Xen support on current setup, instead of
checking if it is BOARD/SOC "xenvm" (which is not correct for Domain-0
configurations).
Remove xen,xen-4.15.yaml at all, because it isn't necessary to have
yaml for some specific Xen version.
Signed-off-by: Mykola Kvach <mykola_kvach@epam.com>
Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
Move memory mapping of Xen node to Grant Table driver system init
function. After moving mapping we don't need anymore records of
xen-xen node into 'mmu_regions' array, so they were deleted from
all SoCs: Rcar Gen3/Gen4 and XenVM.
We need at least 16M of virtual address space to map memory of Xen
node, so the virtual memory sized has been increased to 32 MB, it
should be enough for basic use-cases and mapping of 16M mem region
of Xen node.
Unfortunately, after moving we also need to increase number of XLAT
tables. The previous code was more efficient if we talking about
usage of XLAT tables, because it mapped grant tables using a higher-
order table that allows mapping blocks of 2MB. And after the changes
is maps every 4KB page, so we need more XLAT tables.
Increase number of grant frames, it is needed to sync stage 1 and stage 2
memory mappings, previously we map only one page on stage 2 and further
usage of unmap regions can cause MMU translation errors.
Perform mapping stage 1 before mapping for stage 2 (add to physmap),
because right after stage 1 we can try to access memory and if it is
unmap in stage 2, error will be received during translation.
Note: Xen Grant Table driver doesn't use Zephyr Device Model.
Authored-by: Mykola Kvach <mykola_kvach@epam.com>
Co-authored-by: Oleksii Moisieiev <oleksii_moisieiev@epam.com>
Signed-off-by: Mykola Kvach <mykola_kvach@epam.com>
- Updated basic samples READMEs to use the new zephyr:code-sample::
directive. Dropped "-sample" suffix that's not required anymore now
that samples have their own namespace.
- Updated all references to the samples to use the :zephyr:code-sample:
role. Checked and updated the wording of said references to account
for the fact that samples should not have "... sample" in their name
anymore.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
Adding logos to the documentation doesn't add much value and increases
repository size (due to images).
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Now that serial drivers are enabled based on devicetree we can remove
any cases of them getting enabled by *defconfig and proj.conf files.
Signed-off-by: Kumar Gala <galak@kernel.org>
This commit introduces driver for granting access for own grant
table and for mapping/unmapping foreign gref. Grant tables are used
for data exchange between Xen domains via shared memory page(s) (e.g.
for sharing ring buffer with driver data) This functionality is
widely used and needed for implementing PV backend/frontend drivers.
Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
The armv8 timer, arm gic, and arm gic-v3-its don't use or need the
devicetree label property. Update the dts bindings to not require it and
remove setting of the label property in dts files.
Signed-off-by: Kumar Gala <galak@kernel.org>
In order to bring consistency in-tree, migrate all boards code to the
new prefix <zephyr/...>. Note that the conversion has been scripted,
refer to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Currently xenvm board/soc is configured to use GICv2 and there
is no clean way(without modifying the source code) to alter this
configuration to use GICv3.
Due to the increasing number of users wishing to use GICv3, add
a new configuration called xenvm_gicv3 that enables GICv3.
Create a Kconfig file and add a config XENVM_USE_GIC_V3 that,
if set, will cause SOC_XENVM to select GICv3 instead of GICv2.
Update documentation accordingly.
Take the opportunity to remove the unnecessary config options
from the defconfig files.
Signed-off-by: Michal Orzel <michal.orzel@arm.com>
The XEN_INITIAL_DOMAIN option was defined at board level, however, some
drivers such as the XEN serial driver has dependencies on
XEN_INITIAL_DOMAIN, meaning any new board has to define its own copy of
XEN_INITIAL_DOMAIN. Move the option to SoC Kconfig.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit updates list of supported Xen VM fetures after
implementation of Xen Enlighten, event channels and interrupt-driven
UART API for Xen hypervisor console driver.
Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
This commit adds Xen consoleio serial driver. It is needed to receive
kernel messages from Zephyr in case it runs as Xen privileged domain
(Dom0). There is no console ring buffer for such domain, so regular
uart_hvc_xen driver can not be used (privileged domain input/output
are possible only through consoleio interface).
Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
This commit removes usage of Xen emulated PL011 SBSA UART in favor of
Xen PV console minimal implementation. Now boot log and application
output can be directly taken from hypervisor domain console, instead of
virtual UART.
Also Xen VM doc was updated according to these changes.
Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
Split ARM and ARM64 architectures.
Details:
- CONFIG_ARM64 is decoupled from CONFIG_ARM (not a subset anymore)
- Arch and include AArch64 files are in a dedicated directory
(arch/arm64 and include/arch/arm64)
- AArch64 boards and SoC are moved to soc/arm64 and boards/arm64
- AArch64-specific DTS files are moved to dts/arm64
- The A72 support for the bcm_vk/viper board is moved in the
boards/bcm_vk/viper directory
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Mykola Kvach