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authorSean Christopherson <seanjc@google.com>2024-10-10 20:24:04 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2024-10-25 19:00:48 +0200
commitdac09f61e7325158a797fe56981764a8dc297e89 (patch)
tree90ab1b2bdcded544c815f7f81c1809f1aa36458a
parentKVM: PPC: Use __kvm_faultin_pfn() to handle page faults on Book3s Radix (diff)
downloadlinux-dac09f61e7325158a797fe56981764a8dc297e89.tar.xz
linux-dac09f61e7325158a797fe56981764a8dc297e89.zip
KVM: PPC: Drop unused @kvm_ro param from kvmppc_book3s_instantiate_page()
Drop @kvm_ro from kvmppc_book3s_instantiate_page() as it is now only written, and never read. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-ID: <20241010182427.1434605-63-seanjc@google.com>
-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h2
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_radix.c6
-rw-r--r--arch/powerpc/kvm/book3s_hv_nested.c4
3 files changed, 4 insertions, 8 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 10618622d7ef..3d289dbe3982 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -203,7 +203,7 @@ extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested,
extern int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu,
unsigned long gpa,
struct kvm_memory_slot *memslot,
- bool writing, bool kvm_ro,
+ bool writing,
pte_t *inserted_pte, unsigned int *levelp);
extern int kvmppc_init_vm_radix(struct kvm *kvm);
extern void kvmppc_free_radix(struct kvm *kvm);
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 14891d0a3b73..b3e6e73d6a08 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -821,7 +821,7 @@ bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested, bool writing,
int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu,
unsigned long gpa,
struct kvm_memory_slot *memslot,
- bool writing, bool kvm_ro,
+ bool writing,
pte_t *inserted_pte, unsigned int *levelp)
{
struct kvm *kvm = vcpu->kvm;
@@ -931,7 +931,6 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
struct kvm_memory_slot *memslot;
long ret;
bool writing = !!(dsisr & DSISR_ISSTORE);
- bool kvm_ro = false;
/* Check for unusual errors */
if (dsisr & DSISR_UNSUPP_MMU) {
@@ -984,7 +983,6 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
ea, DSISR_ISSTORE | DSISR_PROTFAULT);
return RESUME_GUEST;
}
- kvm_ro = true;
}
/* Failed to set the reference/change bits */
@@ -1002,7 +1000,7 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
/* Try to insert a pte */
ret = kvmppc_book3s_instantiate_page(vcpu, gpa, memslot, writing,
- kvm_ro, NULL, NULL);
+ NULL, NULL);
if (ret == 0 || ret == -EAGAIN)
ret = RESUME_GUEST;
diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c
index 05f5220960c6..771173509617 100644
--- a/arch/powerpc/kvm/book3s_hv_nested.c
+++ b/arch/powerpc/kvm/book3s_hv_nested.c
@@ -1527,7 +1527,6 @@ static long int __kvmhv_nested_page_fault(struct kvm_vcpu *vcpu,
unsigned long n_gpa, gpa, gfn, perm = 0UL;
unsigned int shift, l1_shift, level;
bool writing = !!(dsisr & DSISR_ISSTORE);
- bool kvm_ro = false;
long int ret;
if (!gp->l1_gr_to_hr) {
@@ -1607,7 +1606,6 @@ static long int __kvmhv_nested_page_fault(struct kvm_vcpu *vcpu,
ea, DSISR_ISSTORE | DSISR_PROTFAULT);
return RESUME_GUEST;
}
- kvm_ro = true;
}
/* 2. Find the host pte for this L1 guest real address */
@@ -1629,7 +1627,7 @@ static long int __kvmhv_nested_page_fault(struct kvm_vcpu *vcpu,
if (!pte_present(pte) || (writing && !(pte_val(pte) & _PAGE_WRITE))) {
/* No suitable pte found -> try to insert a mapping */
ret = kvmppc_book3s_instantiate_page(vcpu, gpa, memslot,
- writing, kvm_ro, &pte, &level);
+ writing, &pte, &level);
if (ret == -EAGAIN)
return RESUME_GUEST;
else if (ret)