[Xen-devel] [PATCH] Not unmap all MSI-X pirqs when enabling MSI-X

["Shan, Haitao" <haitao.shan@xxxxxxxxx>]

Hi, Keir,

This patch made some changes to msix_capability_init for kernel. 

Originally, all existing MSI-X pirqs of that device are unmapped before
mapping the required MSI-X entries. This is actually not right. This
function may be called several times, with each time requiring enabling
different parts of the device MSI-X entry. Former pirqs should not be
unmapped.

I made this patch to correct this. Thanks for Turton's comments on this
problem.

Signed-off-by: Shan Haitao <Haitao.shan@xxxxxxxxx>

Best Regards
Shan Haitao

Attachment: correctly_init_msix_pirqs.patch
Description: correctly_init_msix_pirqs.patch

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