From: Steven Price <steven.price@arm.com>
To: Marc Zyngier <maz@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Price <steven.price@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Will Deacon <will@kernel.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Michael Kelley <mhklinux@outlook.com>
Subject: [PATCH v2 0/2] irqchip/gic-v3-its: Mark ITS tables as decrypted
Date: Wed, 2 Oct 2024 15:16:28 +0100 [thread overview]
Message-ID: <20241002141630.433502-1-steven.price@arm.com> (raw)
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(-)
--
2.34.1
next reply other threads:[~2024-10-02 14:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-02 14:16 Steven Price [this message]
2024-10-02 14:16 ` [PATCH v2 1/2] irqchip/gic-v3-its: Share ITS tables with a non-trusted hypervisor Steven Price
2024-10-02 16:10 ` [tip: irq/core] " tip-bot2 for Steven Price
2024-10-03 9:41 ` [PATCH v2 1/2] " Catalin Marinas
2024-10-21 10:47 ` Steven Price
2024-10-21 13:53 ` [tip: irq/core] irqchip/gic-v3-its: Fix over allocation in itt_alloc_pool() tip-bot2 for Steven Price
2024-10-02 14:16 ` [PATCH v2 2/2] irqchip/gic-v3-its: Rely on genpool alignment Steven Price
2024-10-02 16:10 ` [tip: irq/core] " tip-bot2 for Steven Price
2024-10-03 9:42 ` [PATCH v2 2/2] " Catalin Marinas
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