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xen/PMU: Intercept PMU-related MSR and APIC accesses

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Provide interfaces for recognizing accesses to PMU-related MSRs and
LVTPC APIC and process these accesses in Xen PMU code.

(The interrupt handler performs XENPMU_flush right away in the beginning
since no PMU emulation is available. It will be added with a later patch).

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Boris Ostrovsky 2015-08-10 16:34:36 -04:00 • committed by David Vrabel
parent e27b72df01
commit 6b08cd6328
5 changed files with 109 additions and 8 deletions
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2
include/xen/interface/xenpmu.h
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@ -20,6 +20,8 @@
#define XENPMU_feature_set 3
#define XENPMU_init 4
#define XENPMU_finish 5
#define XENPMU_lvtpc_set 6
#define XENPMU_flush 7
/* ` } */