diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2024-02-25 16:56:12 +0100 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2024-02-25 18:53:08 +0100 |
commit | c147e1ef59d4751a60687074e4268ecc0ef31b5c (patch) | |
tree | c4a51be7f3ceb4f4a651cdc8aac1449d09e6232e /include/linux/timer.h | |
parent | 5b98d210ac1e4eb35abfbd940df50dec10ae81e1 (diff) |
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
Diffstat (limited to 'include/linux/timer.h')
0 files changed, 0 insertions, 0 deletions