On Wed, Sep 17, 2014 at 05:32:19PM +0800, Yijing Wang wrote:
> Commit 71054d8841b4 ("x86, hpet: Introduce x86_msi_ops.setup_hpet_msi")
> introduced x86_msi_ops.setup_hpet_msi to setup hpet MSI irq
> when irq remapping enabled. This caused a regression of
> hpet MSI irq remapping.
>
> Original code flow before commit 71054d8841b4:
> hpet_setup_msi_irq()
> arch_setup_hpet_msi()
> setup_hpet_msi_remapped()
> remap_ops->setup_hpet_msi()
> alloc_irte()
> msi_compose_msg()
> hpet_msi_write()
> ...
>
> Current code flow after commit 71054d8841b4:
> hpet_setup_msi_irq()
> x86_msi.setup_hpet_msi()
> setup_hpet_msi_remapped()
> intel_setup_hpet_msi()
> alloc_irte()
>
> Currently, we only call alloc_irte() for hpet MSI, but
> do not composed and wrote its msg...
>
> Signed-off-by: Yijing Wang <[email protected]>
> ---
> v1->v2: rename remap_ops->setup_hpet_msi to remap_ops->alloc_hpet_msi.
> ---
> drivers/iommu/amd_iommu.c | 4 ++--
> drivers/iommu/intel_irq_remapping.c | 4 ++--
> drivers/iommu/irq_remapping.c | 11 +++++++++--
> drivers/iommu/irq_remapping.h | 2 +-
> 4 files changed, 14 insertions(+), 7 deletions(-)
Applied, thanks.
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