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3 Commits

Author SHA1 Message Date
Wei Huang
b6bb424b40 KVM: x86/vPMU: Fix unnecessary signed extension for AMD PERFCTRn 
According to AMD programmer's manual, AMD PERFCTRn is 64-bit MSR which,
unlike Intel perf counters, doesn't require signed extension. This
patch removes the unnecessary conversion in SVM vPMU code when PERFCTRn
is being updated.

Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2015-08-11 15:19:41 +02:00
Wei Huang
ca724305a2 KVM: x86/vPMU: Implement AMD vPMU code for KVM 
This patch replaces the empty AMD vPMU functions (in pmu_amd.c) with real
implementation.

Reviewed-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2015-06-23 14:12:15 +02:00
Wei Huang
25462f7f52 KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch 
This patch defines a new function pointer struct (kvm_pmu_ops) to
support vPMU for both Intel and AMD. The functions pointers defined in
this new struct will be linked with Intel and AMD functions later. In the
meanwhile the struct that maps from event_sel bits to PERF_TYPE_HARDWARE
events is renamed and moved from Intel specific code to kvm_host.h as a
common struct.

Reviewed-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2015-06-23 14:12:14 +02:00