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| author | Avi Kivity | 2008-11-19 12:58:46 +0100 |
|---|---|---|
| committer | Avi Kivity | 2009-03-24 10:03:06 +0100 |
| commit | 399ec807ddc38ecccf8c06dbde04531cbdc63e11 (patch) | |
| tree | 75a4e3ee9cfffb4ecf7b4608bb592c89f2b62219 /arch/x86/include/asm/kvm.h | |
| parent | KVM: x86: Fix typos and whitespace errors (diff) | |
| download | kernel-qcow2-linux-399ec807ddc38ecccf8c06dbde04531cbdc63e11.tar.gz kernel-qcow2-linux-399ec807ddc38ecccf8c06dbde04531cbdc63e11.tar.xz kernel-qcow2-linux-399ec807ddc38ecccf8c06dbde04531cbdc63e11.zip | |
KVM: Userspace controlled irq routing
Currently KVM has a static routing from GSI numbers to interrupts (namely,
0-15 are mapped 1:1 to both PIC and IOAPIC, and 16:23 are mapped 1:1 to
the IOAPIC). This is insufficient for several reasons:
- HPET requires non 1:1 mapping for the timer interrupt
- MSIs need a new method to assign interrupt numbers and dispatch them
- ACPI APIC mode needs to be able to reassign the PCI LINK interrupts to the
ioapics
This patch implements an interrupt routing table (as a linked list, but this
can be easily changed) and a userspace interface to replace the table. The
routing table is initialized according to the current hardwired mapping.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm.h')
0 files changed, 0 insertions, 0 deletions