| Subject | Re: [patch V2 27/46] x86/xen: Rework MSI teardown | From | Jürgen Groß <> | Date | Thu, 27 Aug 2020 09:46:22 +0200 |
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On 26.08.20 13:16, Thomas Gleixner wrote: > From: Thomas Gleixner <tglx@linutronix.de> > > X86 cannot store the irq domain pointer in struct device without breaking > XEN because the irq domain pointer takes precedence over arch_*_msi_irqs() > fallbacks. > > XENs MSI teardown relies on default_teardown_msi_irqs() which invokes > arch_teardown_msi_irq(). default_teardown_msi_irqs() is a trivial iterator > over the msi entries associated to a device. > > Implement this loop in xen_teardown_msi_irqs() to prepare for removal of > the fallbacks for X86. > > This is a preparatory step to wrap XEN MSI alloc/free into a irq domain > which in turn allows to store the irq domain pointer in struct device and > to use the irq domain functions directly. > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Juergen
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