[PATCH 08/10] KVM: x86: Drop @invalidate_gpa param from kvm_x86_ops' tlb_flush()

From: Sean Christopherson
Date: Thu Feb 20 2020 - 15:44:12 EST


Drop @invalidate_gpa from ->tlb_flush() and kvm_vcpu_flush_tlb() now
that all callers pass %true for said param.

Note, vmx_flush_tlb() now unconditionally passes %true to
__vmx_flush_tlb(), the less straightforward VMX change will be handled
in a future patch.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/mmu/mmu.c | 2 +-
arch/x86/kvm/svm.c | 10 +++++-----
arch/x86/kvm/vmx/vmx.c | 4 ++--
arch/x86/kvm/vmx/vmx.h | 4 ++--
arch/x86/kvm/x86.c | 6 +++---
6 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 86aed64b9a88..2d5ef0081d50 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1095,7 +1095,7 @@ struct kvm_x86_ops {
unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);

- void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
+ void (*tlb_flush)(struct kvm_vcpu *vcpu);
int (*tlb_remote_flush)(struct kvm *kvm);
int (*tlb_remote_flush_with_range)(struct kvm *kvm,
struct kvm_tlb_range *range);
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 7011a4e54866..7fefe58dd7ab 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5186,7 +5186,7 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu)
if (r)
goto out;
kvm_mmu_load_cr3(vcpu);
- kvm_x86_ops->tlb_flush(vcpu, true);
+ kvm_x86_ops->tlb_flush(vcpu);
out:
return r;
}
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index e549811f51c6..16d58ffc7aff 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -385,7 +385,7 @@ module_param(dump_invalid_vmcb, bool, 0644);
static u8 rsm_ins_bytes[] = "\x0f\xaa";

static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
-static void svm_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa);
+static void svm_flush_tlb(struct kvm_vcpu *vcpu);
static void svm_complete_interrupts(struct vcpu_svm *svm);
static void svm_toggle_avic_for_irq_window(struct kvm_vcpu *vcpu, bool activate);
static inline void avic_post_state_restore(struct kvm_vcpu *vcpu);
@@ -2634,7 +2634,7 @@ static int svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
return 1;

if (npt_enabled && ((old_cr4 ^ cr4) & X86_CR4_PGE))
- svm_flush_tlb(vcpu, true);
+ svm_flush_tlb(vcpu);

vcpu->arch.cr4 = cr4;
if (!npt_enabled)
@@ -3588,7 +3588,7 @@ static void enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa,
svm->nested.intercept_exceptions = nested_vmcb->control.intercept_exceptions;
svm->nested.intercept = nested_vmcb->control.intercept;

- svm_flush_tlb(&svm->vcpu, true);
+ svm_flush_tlb(&svm->vcpu);
svm->vmcb->control.int_ctl = nested_vmcb->control.int_ctl | V_INTR_MASKING_MASK;
if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK)
svm->vcpu.arch.hflags |= HF_VINTR_MASK;
@@ -5591,7 +5591,7 @@ static int svm_set_identity_map_addr(struct kvm *kvm, u64 ident_addr)
return 0;
}

-static void svm_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa)
+static void svm_flush_tlb(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);

@@ -5610,7 +5610,7 @@ static void svm_flush_tlb_gva(struct kvm_vcpu *vcpu, gva_t gva)

static void svm_flush_tlb_guest(struct kvm_vcpu *vcpu)
{
- svm_flush_tlb(vcpu, true);
+ svm_flush_tlb(vcpu);
}

static void svm_prepare_guest_switch(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 906e9d9aa09e..8bb380d22dc2 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -6043,7 +6043,7 @@ void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu)
if (flexpriority_enabled) {
sec_exec_control |=
SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
- vmx_flush_tlb(vcpu, true);
+ vmx_flush_tlb(vcpu);
}
break;
case LAPIC_MODE_X2APIC:
@@ -6061,7 +6061,7 @@ static void vmx_set_apic_access_page_addr(struct kvm_vcpu *vcpu, hpa_t hpa)
{
if (!is_guest_mode(vcpu)) {
vmcs_write64(APIC_ACCESS_ADDR, hpa);
- vmx_flush_tlb(vcpu, true);
+ vmx_flush_tlb(vcpu);
}
}

diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index 7f42cf3dcd70..6e588d238318 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -514,9 +514,9 @@ static inline void __vmx_flush_tlb(struct kvm_vcpu *vcpu, int vpid,
}
}

-static inline void vmx_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa)
+static inline void vmx_flush_tlb(struct kvm_vcpu *vcpu)
{
- __vmx_flush_tlb(vcpu, to_vmx(vcpu)->vpid, invalidate_gpa);
+ __vmx_flush_tlb(vcpu, to_vmx(vcpu)->vpid, true);
}

static inline void decache_tsc_multiplier(struct vcpu_vmx *vmx)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 72f7ca4baa6d..e26ffebe6f6e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2646,10 +2646,10 @@ static void kvmclock_reset(struct kvm_vcpu *vcpu)
vcpu->arch.time = 0;
}

-static void kvm_vcpu_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa)
+static void kvm_vcpu_flush_tlb(struct kvm_vcpu *vcpu)
{
++vcpu->stat.tlb_flush;
- kvm_x86_ops->tlb_flush(vcpu, invalidate_gpa);
+ kvm_x86_ops->tlb_flush(vcpu);
}

static void record_steal_time(struct kvm_vcpu *vcpu)
@@ -8166,7 +8166,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
if (kvm_check_request(KVM_REQ_LOAD_CR3, vcpu))
kvm_mmu_load_cr3(vcpu);
if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu))
- kvm_vcpu_flush_tlb(vcpu, true);
+ kvm_vcpu_flush_tlb(vcpu);
if (kvm_check_request(KVM_REQ_REPORT_TPR_ACCESS, vcpu)) {
vcpu->run->exit_reason = KVM_EXIT_TPR_ACCESS;
r = 0;
--
2.24.1