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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-12-01 15:51:44 +0100 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-12-02 15:28:22 +0100 |
| commit | e5fc7345412d5e4758fcef55a74354c5cbefd61e (patch) | |
| tree | 00f8303544240826fb2dd2b97de5ff66596e7beb /drivers/char | |
| parent | Linux 2.6.37-rc4 (diff) | |
| download | linux-e5fc7345412d5e4758fcef55a74354c5cbefd61e.tar.xz linux-e5fc7345412d5e4758fcef55a74354c5cbefd61e.zip | |
xen: use PHYSDEVOP_get_free_pirq to implement find_unbound_pirq
Use the new hypercall PHYSDEVOP_get_free_pirq to ask Xen to allocate a
pirq. Remove the unsupported PHYSDEVOP_get_nr_pirqs hypercall to get the
amount of pirq available.
This fixes find_unbound_pirq that otherwise would return a number
starting from nr_irqs that might very well be out of range in Xen.
The symptom of this bug is that when you passthrough an MSI capable pci
device to a PV on HVM guest, Linux would fail to enable MSIs on the
device.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'drivers/char')
0 files changed, 0 insertions, 0 deletions