[Xen-devel] [PATCH 0/2] x86/vMSI-X: table read/write emulation adjustments

["Jan Beulich" <JBeulich@xxxxxxxx>]

Due to the (late) point in time when qemu requests the hypervisor to
set up MSI-X interrupts (which is where the MMIO intercept gets put
in place), the hypervisor doesn't see all guest writes, and hence
shouldn't make assumptions on the state the virtual MSI-X resources
are in.

1: honor all mask requests
2: add valid bits for read acceleration

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>


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