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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-08-19 12:53:46 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-08-19 12:53:46 +0100 |
| commit | 487a1cffd71a34d729c05c9a379ff05ea39b9fe2 (patch) | |
| tree | f049fe8aaeee2f2abdf21e49e176a6f993bf84ce /xen/include/asm-x86/mach-default | |
| parent | b07b22f961709fc4639b550450caa4681881977d (diff) | |
| download | xen-487a1cffd71a34d729c05c9a379ff05ea39b9fe2.tar.gz xen-487a1cffd71a34d729c05c9a379ff05ea39b9fe2.tar.bz2 xen-487a1cffd71a34d729c05c9a379ff05ea39b9fe2.zip | |
x86: Implement per-cpu vector for xen hypervisor
Since Xen and Linux has big differece in code base, it
is very hard to port Linux's patch and apply it to Xen
directly, so this patch only adopts core logic of Linux,
and make it work for Xen.
Key changes:
1. vector allocation algorithm
2. all IRQ chips' set_affinity logic
3. IRQ migration when cpu hot remove.
4. Break assumptions which depend on global vector policy.
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Diffstat (limited to 'xen/include/asm-x86/mach-default')
| -rw-r--r-- | xen/include/asm-x86/mach-default/irq_vectors.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/xen/include/asm-x86/mach-default/irq_vectors.h b/xen/include/asm-x86/mach-default/irq_vectors.h index 7ca3312def..8453d06714 100644 --- a/xen/include/asm-x86/mach-default/irq_vectors.h +++ b/xen/include/asm-x86/mach-default/irq_vectors.h @@ -28,6 +28,9 @@ /* Dynamically-allocated vectors available to any driver. */ #define FIRST_DYNAMIC_VECTOR 0x20 #define LAST_DYNAMIC_VECTOR 0xdf +#define NR_DYNAMIC_VECTORS (LAST_DYNAMIC_VECTOR - FIRST_DYNAMIC_VECTOR + 1) + +#define IRQ_MOVE_CLEANUP_VECTOR FIRST_DYNAMIC_VECTOR #define NR_VECTORS 256 |