KVM: VMX: Rename pt_desc.addr_range to pt_desc.num_address_ranges

To better self explain the meaning of this field and match the
PT_CAP_num_address_ranges constatn.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20210827070249.924633-4-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index f8539f9..0337083 100644 (file)
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1059,8 +1059,8 @@ static void pt_guest_enter(struct vcpu_vmx *vmx)
        rdmsrl(MSR_IA32_RTIT_CTL, vmx->pt_desc.host.ctl);
        if (vmx->pt_desc.guest.ctl & RTIT_CTL_TRACEEN) {
                wrmsrl(MSR_IA32_RTIT_CTL, 0);
-               pt_save_msr(&vmx->pt_desc.host, vmx->pt_desc.addr_range);
-               pt_load_msr(&vmx->pt_desc.guest, vmx->pt_desc.addr_range);
+               pt_save_msr(&vmx->pt_desc.host, vmx->pt_desc.num_address_ranges);
+               pt_load_msr(&vmx->pt_desc.guest, vmx->pt_desc.num_address_ranges);
        }
 }
 
@@ -1070,8 +1070,8 @@ static void pt_guest_exit(struct vcpu_vmx *vmx)
                return;
 
        if (vmx->pt_desc.guest.ctl & RTIT_CTL_TRACEEN) {
-               pt_save_msr(&vmx->pt_desc.guest, vmx->pt_desc.addr_range);
-               pt_load_msr(&vmx->pt_desc.host, vmx->pt_desc.addr_range);
+               pt_save_msr(&vmx->pt_desc.guest, vmx->pt_desc.num_address_ranges);
+               pt_load_msr(&vmx->pt_desc.host, vmx->pt_desc.num_address_ranges);
        }
 
        /*
@@ -1460,16 +1460,16 @@ static int vmx_rtit_ctl_check(struct kvm_vcpu *vcpu, u64 data)
         * cause a #GP fault.
         */
        value = (data & RTIT_CTL_ADDR0) >> RTIT_CTL_ADDR0_OFFSET;
-       if ((value && (vmx->pt_desc.addr_range < 1)) || (value > 2))
+       if ((value && (vmx->pt_desc.num_address_ranges < 1)) || (value > 2))
                return 1;
        value = (data & RTIT_CTL_ADDR1) >> RTIT_CTL_ADDR1_OFFSET;
-       if ((value && (vmx->pt_desc.addr_range < 2)) || (value > 2))
+       if ((value && (vmx->pt_desc.num_address_ranges < 2)) || (value > 2))
                return 1;
        value = (data & RTIT_CTL_ADDR2) >> RTIT_CTL_ADDR2_OFFSET;
-       if ((value && (vmx->pt_desc.addr_range < 3)) || (value > 2))
+       if ((value && (vmx->pt_desc.num_address_ranges < 3)) || (value > 2))
                return 1;
        value = (data & RTIT_CTL_ADDR3) >> RTIT_CTL_ADDR3_OFFSET;
-       if ((value && (vmx->pt_desc.addr_range < 4)) || (value > 2))
+       if ((value && (vmx->pt_desc.num_address_ranges < 4)) || (value > 2))
                return 1;
 
        return 0;
@@ -1890,7 +1890,7 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
        case MSR_IA32_RTIT_ADDR0_A ... MSR_IA32_RTIT_ADDR3_B:
                index = msr_info->index - MSR_IA32_RTIT_ADDR0_A;
                if (!vmx_pt_mode_is_host_guest() ||
-                   (index >= 2 * vmx->pt_desc.addr_range))
+                   (index >= 2 * vmx->pt_desc.num_address_ranges))
                        return 1;
                if (index % 2)
                        msr_info->data = vmx->pt_desc.guest.addr_b[index / 2];
@@ -2205,7 +2205,7 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
                if (!pt_can_write_msr(vmx))
                        return 1;
                index = msr_info->index - MSR_IA32_RTIT_ADDR0_A;
-               if (index >= 2 * vmx->pt_desc.addr_range)
+               if (index >= 2 * vmx->pt_desc.num_address_ranges)
                        return 1;
                if (is_noncanonical_address(data, vcpu))
                        return 1;
@@ -3881,7 +3881,7 @@ void pt_update_intercept_for_msr(struct kvm_vcpu *vcpu)
        vmx_set_intercept_for_msr(vcpu, MSR_IA32_RTIT_OUTPUT_BASE, MSR_TYPE_RW, flag);
        vmx_set_intercept_for_msr(vcpu, MSR_IA32_RTIT_OUTPUT_MASK, MSR_TYPE_RW, flag);
        vmx_set_intercept_for_msr(vcpu, MSR_IA32_RTIT_CR3_MATCH, MSR_TYPE_RW, flag);
-       for (i = 0; i < vmx->pt_desc.addr_range; i++) {
+       for (i = 0; i < vmx->pt_desc.num_address_ranges; i++) {
                vmx_set_intercept_for_msr(vcpu, MSR_IA32_RTIT_ADDR0_A + i * 2, MSR_TYPE_RW, flag);
                vmx_set_intercept_for_msr(vcpu, MSR_IA32_RTIT_ADDR0_B + i * 2, MSR_TYPE_RW, flag);
        }
@@ -7131,7 +7131,7 @@ static void update_intel_pt_cfg(struct kvm_vcpu *vcpu)
        }
 
        /* Get the number of configurable Address Ranges for filtering */
-       vmx->pt_desc.addr_range = intel_pt_validate_cap(vmx->pt_desc.caps,
+       vmx->pt_desc.num_address_ranges = intel_pt_validate_cap(vmx->pt_desc.caps,
                                                PT_CAP_num_address_ranges);
 
        /* Initialize and clear the no dependency bits */
@@ -7179,7 +7179,7 @@ static void update_intel_pt_cfg(struct kvm_vcpu *vcpu)
                vmx->pt_desc.ctl_bitmask &= ~RTIT_CTL_FABRIC_EN;
 
        /* unmask address range configure area */
-       for (i = 0; i < vmx->pt_desc.addr_range; i++)
+       for (i = 0; i < vmx->pt_desc.num_address_ranges; i++)
                vmx->pt_desc.ctl_bitmask &= ~(0xfULL << (32 + i * 4));
 }
 

diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index 592217f..e7db42e 100644 (file)
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -62,7 +62,7 @@ struct pt_ctx {
 
 struct pt_desc {
        u64 ctl_bitmask;
-       u32 addr_range;
+       u32 num_address_ranges;
        u32 caps[PT_CPUID_REGS_NUM * PT_CPUID_LEAVES];
        struct pt_ctx host;
        struct pt_ctx guest;