> You can read config space, but it's not clear to me if the HV is allowed
> to filter it and hide things.
I've seen it do it for example with EADS bridges. I haven't seen doing
it with devices (other than hiding entire functions) but I wouldn't
exclude it...
> It's also possible that the device
> supports MSI, but for some reason the HV doesn't allow it on that device
> etc. so you really have to ask the HV if it's enabled. So pci_find_cap()
> shouldn't crash or anything, but it may lie to you.
Yup.
> One thing I did like about my code, is that pci_enable_msi() and
> pci_enable_msix() are just small wrappers around generic_enable_msi() -
> which does all the work, and is the same regardless of whether it's an
> MSI or MSI-X. Although that's facilitated by the type arg which you
> don't like.
Part of the reason is you make MSI look like MSI-X (a vector of 1 entry)
while Eric does the opposite.
Ben.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
