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| author | Alexey Kardashevskiy | 2013-09-03 10:08:25 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2013-09-20 12:37:52 +0200 |
| commit | 76fe21dedafb0319306bc993f23e7646b139cfe4 (patch) | |
| tree | 7ea4f6972d46939ec16090496ad7b7201f6946dc /hw/i386 | |
| parent | fix steal time MSR vmsd callback to proper opaque type (diff) | |
| download | qemu-76fe21dedafb0319306bc993f23e7646b139cfe4.tar.gz qemu-76fe21dedafb0319306bc993f23e7646b139cfe4.tar.xz qemu-76fe21dedafb0319306bc993f23e7646b139cfe4.zip | |
kvm irqfd: support direct msimessage to irq translation
On PPC64 systems MSI Messages are translated to system IRQ in a PCI
host bridge. This is already supported for emulated MSI/MSIX but
not for irqfd where the current QEMU allocates IRQ numbers from
irqchip and maps MSIMessages to IRQ in the host kernel.
This adds a new direct mapping flag which tells
the kvm_irqchip_add_msi_route() function that a new VIRQ
should not be allocated, instead the value from MSIMessage::data
should be used. It is up to the platform code to make sure that
this contains a valid IRQ number as sPAPR does in spapr_pci.c.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386')
0 files changed, 0 insertions, 0 deletions