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Jailhouse requires a contiguous piece of RAM for itself and additional
cells. This has to be preallocated during emulation of the image and
is typically done by adding `memmap=<size>$<memory_address>`, and here
escape sequencing before the dollar should only be added when there is
a need to put this parameter in GRUB2 variables in /etc/default/grub.
Fix it by removing `\` escape sequence from memmap command line parameter
of the virtual machine's kernel.
Signed-off-by: Anmol <anmol.karan123@gmail.com>
Change-Id: I9981a359d1cb00900153e7692c6c1175cb0a3ce6
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jailhouse enable /usr/share/jailhouse/cells/qemu-agl.cell
added the appropriate QB variables required to use runqemu
v2: updated QB_SERIAL_OPT
v3: updated do_configure and do_install
v4: updated memmap
v5: resolved comments
v6: 2G to 1G
Bug-AGL: SPEC-3507
Change-Id: Iae8cf6a1f27bc285e4c0c5f2518cd1985ddf3b74
Signed-off-by: Parth Dode <dodecoder@gmail.com>
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The Jailhouse configuration files had to be modified to append the additional
memory regions present on the higher mem variants of the RPi4.
To avoid the use of mem= kernel parameter to fix the memory that can be used
by the root cell, a device tree overlay with reserved-memory nodes is used
instead.
To avoid conflict with the GPU memory, the memory region used for Jailhouse
and the non-root cells was moved from 0x30000000 to 0x20000000.
Bug-AGL: SPEC-3507
Signed-off-by: Jakub Luzny <jakub@luzny.cz>
Change-Id: Iabd67504c3df0349dd62e45f12d1019de14328f1
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Jailhouse is a partitioning hypervisor based on Linux. It is able to run
bare-metal applications or (adapted) operating systems besides Linux.
For this purpose, it configures CPU and device virtualization features
of the hardware platform in a way that none of these domains, called
"cells" here, can interfere with each other in an unacceptable way.
This layer adds the Jailhouse package into AGL and also appends the BSPs
to allow it to run. Currently, Raspberry Pi 4 and QEMU x86-64 targets
are supported.
To enable Jailhouse and include it in the image, the AGL feature
agl-jailhouse must be enabled.
Bug-AGL: SPEC-3507
Signed-off-by: Jakub Luzny <jakub@luzny.cz>
Change-Id: I0fbc0b5d931c85d6f22b0222da8c2b106c4115e1
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