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profiling: simplify the handling of vmexit loading list

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The patch simplifies the way to merge the msr vmexit loading list with HV,
which was already merged to master.

Tracked-On: #2422
Signed-off-by: Min Lim <min.yeol.lim@intel.com>
This commit is contained in:
Min Lim
2019-02-01 12:52:11 -08:00
committed by wenlingz
parent 135ed80f51
commit ff48cb0778
2 changed files with 14 additions and 15 deletions
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23
hypervisor/debug/profiling.c
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@@ -90,6 +90,7 @@ static void profiling_enable_pmu(void)
uint32_t lvt_perf_ctr;
uint32_t i;
uint32_t group_id;
uint32_t size;
struct profiling_msr_op *msrop = NULL;
struct sep_state *ss = &get_cpu_var(profiling_info.sep_state);
@@ -116,22 +117,21 @@ static void profiling_enable_pmu(void)
if (ss->vmexit_msr_cnt == 0) {
struct acrn_vcpu *vcpu = get_ever_run_vcpu(get_cpu_id());
ss->vmexit_msr_cnt = 1 + MSR_AREA_COUNT;
ss->vmexit_msr_list[0].msr_num
size = sizeof(struct msr_store_entry) * MAX_HV_MSR_LIST_NUM;
(void)memcpy_s(ss->vmexit_msr_list, size, vcpu->arch.msr_area.host, size);
ss->vmexit_msr_cnt = MAX_HV_MSR_LIST_NUM;
ss->vmexit_msr_list[MAX_HV_MSR_LIST_NUM].msr_num
= MSR_IA32_DEBUGCTL;
ss->vmexit_msr_list[0].value
ss->vmexit_msr_list[MAX_HV_MSR_LIST_NUM].value
= ss->guest_debugctl_value &
VALID_DEBUGCTL_BIT_MASK;
for (i = 0; i < MSR_AREA_COUNT; i++) {
ss->vmexit_msr_list[i + 1].msr_num = vcpu->arch.msr_area.host[i].msr_num;
ss->vmexit_msr_list[i + 1].value = vcpu->arch.msr_area.host[i].value;
}
ss->vmexit_msr_cnt++;
exec_vmwrite64(VMX_EXIT_MSR_LOAD_ADDR_FULL,
hva2hpa(ss->vmexit_msr_list));
exec_vmwrite32(VMX_EXIT_MSR_LOAD_COUNT,
(uint64_t)ss->vmexit_msr_cnt);
ss->vmexit_msr_cnt);
}
/* VMCS GUEST field */
@@ -182,9 +182,8 @@ static void profiling_disable_pmu(void)
/* Restore the msr exit loading list of HV */
struct acrn_vcpu *vcpu = get_ever_run_vcpu(get_cpu_id());
exec_vmwrite64(VMX_EXIT_MSR_LOAD_ADDR_FULL, (uint64_t)vcpu->arch.msr_area.host);
exec_vmwrite32(VMX_EXIT_MSR_LOAD_COUNT, MSR_AREA_COUNT);
exec_vmwrite64(VMX_EXIT_MSR_LOAD_ADDR_FULL, hva2hpa(vcpu->arch.msr_area.host));
exec_vmwrite32(VMX_EXIT_MSR_LOAD_COUNT, MAX_HV_MSR_LIST_NUM);
ss->vmexit_msr_cnt = 0;
}