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[PATCH v2 0/6] ARM split hardware and control domains
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jason Andryuk <jason.andryuk@xxxxxxx>
- Date: Mon, 31 Mar 2025 17:43:15 -0400
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- Cc: Jason Andryuk <jason.andryuk@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, "Volodymyr Babchuk" <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, "Jan Beulich" <jbeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Mon, 31 Mar 2025 21:43:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
This series implements separation of dom0 into separate hardware and
control domains. It uses the capabilities idea from Hyperlaunch -
hardware, control, and xenstore. It's been tested with dom1 as
control, dom2 as a domU, and dom3 as hardware and xenstore.
To keep things more managable, this v2 is only the ARM hypervisor changes,
and one associated init-dom0less change. The series is slightly
re-ordered to move xenstore changes ahead of adding the capabilities.
Setting hardware domain as domid 0 is removed.
I've been unable to run a combined control/xenstore. Linux console
output stops shortly after the domain determines it should be XS_LOCAL.
I have not investigated further.
Daniel P. Smith (1):
xen: introduce hardware domain create flag
Jason Andryuk (5):
xen/arm: dom0less hwdom construction
xen/arm: dom0less delay xenstore initialization
xen/arm: dom0less seed xenstore grant table entry
tools/init-dom0less: Only seed legacy xenstore grants
xen/arm: Add capabilities to dom0less
docs/misc/arm/device-tree/booting.txt | 11 ++
tools/helpers/init-dom0less.c | 10 +-
xen/arch/arm/dom0less-build.c | 167 ++++++++++++++++------
xen/arch/arm/domain.c | 3 +-
xen/arch/arm/domain_build.c | 14 +-
xen/arch/arm/include/asm/dom0less-build.h | 2 +
xen/arch/arm/include/asm/domain_build.h | 3 +-
xen/arch/x86/setup.c | 3 +-
xen/common/domain.c | 6 +-
xen/common/grant_table.c | 15 ++
xen/include/public/bootfdt.h | 31 ++++
xen/include/xen/domain.h | 2 +
xen/include/xen/grant_table.h | 9 ++
13 files changed, 221 insertions(+), 55 deletions(-)
create mode 100644 xen/include/public/bootfdt.h
--
2.49.0
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