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[17/48] KVM: Downsize max support MSI-X entry to 256

Message ID 1250415008-17175-18-git-send-email-avi@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Avi Kivity Aug. 16, 2009, 9:29 a.m. UTC
From: Sheng Yang <sheng@linux.intel.com>

We only trap one page for MSI-X entry now, so it's 4k/(128/8) = 256 entries at
most.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
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Patch

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 65df6f5..632a856 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -676,7 +676,7 @@  struct kvm_assigned_msix_nr {
 	__u16 padding;
 };
 
-#define KVM_MAX_MSIX_PER_DEV		512
+#define KVM_MAX_MSIX_PER_DEV		256
 struct kvm_assigned_msix_entry {
 	__u32 assigned_dev_id;
 	__u32 gsi;