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HV:Added support to setup tool & start/stop profing

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profiling_set_control:
    Receives tool control information from guest and sets control switches accordingly,
    tool control information includes:
         type - sep/socwatch
         action - Start/stop
         feature - What to collect(core/lbr/vm switch)
    This function provides interface to start and stop profiling data collection

profiling_start_pmu:
    Initialize sep state and enable PMU counters
    SMP calls profiling_enable_pmu

profiling_stop_pmu:
    Reset sep state and Disable all the PMU counters
    SMP calls profiling_disable_pmu

profiling_enable_pmu:
    Enable all the Performance Monitoring Control registers.
    Unmask LAPIC entry for PMC register to enable performance monitoring
    Walk through the entries and write to PMU control regiesters

profiling_disable_pmu:
    Disable all Performance Monitoring Control registers

Tracked-On: projectacrn#1409
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Chinthapally, Manisha <manisha.chinthapally@intel.com>
This commit is contained in:
Manisha Chinthapally
2018-10-24 23:37:53 -07:00
committed by wenlingz
parent 898b9c8d4a
commit 1786f6222a
2 changed files with 366 additions and 5 deletions
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33
hypervisor/include/debug/profiling_internal.h
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@@ -11,6 +11,7 @@
#define MAX_NR_VCPUS 8
#define MAX_NR_VMS 6
#define MAX_MSR_LIST_NUM 15U
#define MAX_GROUP_NUM 1U
@@ -51,6 +52,18 @@ typedef enum PROFILING_SEP_FEATURE {
MAX_SEP_FEATURE_ID
} profiling_sep_feature;
typedef enum SOCWATCH_STATE {
SW_SETUP = 0,
SW_RUNNING,
SW_STOPPED
} socwatch_state;
typedef enum PROFILING_SOCWATCH_FEATURE {
SOCWATCH_COMMAND = 0,
SOCWATCH_VM_SWITCH_TRACING,
MAX_SOCWATCH_FEATURE_ID
} profiling_socwatch_feature;
struct profiling_version_info {
int32_t major;
int32_t minor;
@@ -120,6 +133,12 @@ struct profiling_vmsw_config {
struct profiling_msr_op exit_list[MAX_MSR_LIST_NUM];
};
struct vmexit_msr {
uint32_t msr_idx;
uint32_t reserved;
uint64_t msr_data;
};
struct sep_state {
sep_pmu_state pmu_state;
@@ -146,7 +165,20 @@ struct sep_state {
struct profiling_msr_op
vmsw_exit_msr_list[MAX_GROUP_NUM][MAX_MSR_LIST_NUM];
/* sep handling statistics */
uint32_t samples_logged;
uint32_t samples_dropped;
uint32_t valid_pmi_count;
uint32_t total_pmi_count;
uint32_t total_vmexit_count;
uint32_t frozen_well;
uint32_t frozen_delayed;
uint32_t nofrozen_pmi;
struct vmexit_msr vmexit_msr_list[MAX_MSR_LIST_NUM];
int32_t vmexit_msr_cnt;
uint64_t guest_debugctl_value;
uint64_t saved_debugctl_value;
} __aligned(8);
/*
@@ -155,6 +187,7 @@ struct sep_state {
struct profiling_info_wrapper {
struct sep_state sep_state;
ipi_commands ipi_cmd;
socwatch_state soc_state;
} __aligned(8);
int32_t profiling_get_version_info(struct vm *vm, uint64_t addr);