[Xen-devel] [PATCH RFC 12/13] mca: disable cmc enable on Xen PV

[Roger Pau Monne <roger.pau@xxxxxxxxxx>]

Xen PV guests doesn't have a lapic, so disable the lapic call in mca
initialization.
---
 sys/x86/x86/mca.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/sys/x86/x86/mca.c b/sys/x86/x86/mca.c
index f1369cd..e9d2c1d 100644
--- a/sys/x86/x86/mca.c
+++ b/sys/x86/x86/mca.c
@@ -897,7 +897,7 @@ _mca_init(int boot)
                }
 
 #ifdef DEV_APIC
-               if (PCPU_GET(cmci_mask) != 0 && boot)
+               if (PCPU_GET(cmci_mask) != 0 && boot && !lapic_disabled)
                        lapic_enable_cmc();
 #endif
        }
-- 
1.7.7.5 (Apple Git-26)


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