genirq/msi: Add range checking to msi_insert_desc()

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Per device domains provide the real domain size to the core code. This
allows range checking on insertion of MSI descriptors and also paves the
way for dynamic index allocations which are required e.g. for IMS. This
avoids external mechanisms like bitmaps on the device side and just
utilizes the core internal MSI descriptor storxe for it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.798556374@linutronix.de

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Thomas Gleixner 2022-11-25 00:25:59 +01:00

parent 26e91b75bf

commit 36db3d9003

1 changed files with 43 additions and 10 deletions

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kernel/irq/msi.c

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