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authorThomas Gleixner <tglx@linutronix.de>2024-02-25 18:56:12 +0300
committerThomas Gleixner <tglx@linutronix.de>2024-02-25 20:53:08 +0300
commitc147e1ef59d4751a60687074e4268ecc0ef31b5c (patch)
treec4a51be7f3ceb4f4a651cdc8aac1449d09e6232e /net/Kconfig
parent5b98d210ac1e4eb35abfbd940df50dec10ae81e1 (diff)
downloadlinux-c147e1ef59d4751a60687074e4268ecc0ef31b5c.tar.xz
x86/apic/msi: Use DOMAIN_BUS_GENERIC_MSI for HPET/IO-APIC domain search
The recent restriction to invoke irqdomain_ops::select() only when the domain bus token is not DOMAIN_BUS_ANY breaks the search for the parent MSI domain of HPET and IO-APIC. The latter causes a full boot fail. The restriction itself makes sense to avoid adding DOMAIN_BUS_ANY matches into the various ARM specific select() callbacks. Reverting this change would obviously break ARM platforms again and require DOMAIN_BUS_ANY matches added to various places. A simpler solution is to use the DOMAIN_BUS_GENERIC_MSI token for the HPET and IO-APIC parent domain search. This works out of the box because the affected parent domains check only for the firmware specification content and not for the bus token. Fixes: 5aa3c0cf5bba ("genirq/irqdomain: Don't call ops->select for DOMAIN_BUS_ANY tokens") Reported-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/878r38cy8n.ffs@tglx
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