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[v2,0/2] irqchip/gic-v3-its: Mark ITS tables as decrypted

Message ID 20241002141630.433502-1-steven.price@arm.com (mailing list archive)
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Series irqchip/gic-v3-its: Mark ITS tables as decrypted | expand

Message

Steven Price Oct. 2, 2024, 2:16 p.m. UTC 
These two patches were taken from the larger series to support running
Linux as a realm guest in CCA[1]. They add support to the GIC for
allocating the ITS pages such that they are decrypted so that the host
can access then for emulation purposes.

Note that there are likely to be future changes to make this more
configurable in the future, as it's possible that in a future
configuration a protected component within the realm could take on the
emulation responsibilities ('Planes support')[2]. But this is a good
building block for the future.

[1] https://lore.kernel.org/r/20240819131924.372366-1-steven.price%40arm.com
[2] https://lore.kernel.org/r/beff9162-e1ba-4f72-91ea-329eaed48dbc%40arm.com

Steven Price (2):
  irqchip/gic-v3-its: Share ITS tables with a non-trusted hypervisor
  irqchip/gic-v3-its: Rely on genpool alignment

 drivers/irqchip/irq-gic-v3-its.c | 154 ++++++++++++++++++++++++++-----
 1 file changed, 129 insertions(+), 25 deletions(-)