KVM: s390: Refactor kvm_is_error_gpa() into kvm_is_gpa_in_memslot()

Rename kvm_is_error_gpa() to kvm_is_gpa_in_memslot() and invert the
polarity accordingly in order to (a) free up kvm_is_error_gpa() to match
with kvm_is_error_{hva,page}(), and (b) to make it more obvious that the
helper is doing a memslot lookup, i.e. not simply checking for INVALID_GPA.

No functional change intended.

Link: https://lore.kernel.org/r/20240215152916.1158-9-paul@xen.org
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 3c65b82..2a32438 100644 (file)
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -102,7 +102,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu)
                    parm.token_addr & 7 || parm.zarch != 0x8000000000000000ULL)
                        return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 
-               if (kvm_is_error_gpa(vcpu->kvm, parm.token_addr))
+               if (!kvm_is_gpa_in_memslot(vcpu->kvm, parm.token_addr))
                        return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
 
                vcpu->arch.pfault_token = parm.token_addr;

diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 5bfcc50..415c996 100644 (file)
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -664,7 +664,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
        case ASCE_TYPE_REGION1: {
                union region1_table_entry rfte;
 
-               if (kvm_is_error_gpa(vcpu->kvm, ptr))
+               if (!kvm_is_gpa_in_memslot(vcpu->kvm, ptr))
                        return PGM_ADDRESSING;
                if (deref_table(vcpu->kvm, ptr, &rfte.val))
                        return -EFAULT;
@@ -682,7 +682,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
        case ASCE_TYPE_REGION2: {
                union region2_table_entry rste;
 
-               if (kvm_is_error_gpa(vcpu->kvm, ptr))
+               if (!kvm_is_gpa_in_memslot(vcpu->kvm, ptr))
                        return PGM_ADDRESSING;
                if (deref_table(vcpu->kvm, ptr, &rste.val))
                        return -EFAULT;
@@ -700,7 +700,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
        case ASCE_TYPE_REGION3: {
                union region3_table_entry rtte;
 
-               if (kvm_is_error_gpa(vcpu->kvm, ptr))
+               if (!kvm_is_gpa_in_memslot(vcpu->kvm, ptr))
                        return PGM_ADDRESSING;
                if (deref_table(vcpu->kvm, ptr, &rtte.val))
                        return -EFAULT;
@@ -728,7 +728,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
        case ASCE_TYPE_SEGMENT: {
                union segment_table_entry ste;
 
-               if (kvm_is_error_gpa(vcpu->kvm, ptr))
+               if (!kvm_is_gpa_in_memslot(vcpu->kvm, ptr))
                        return PGM_ADDRESSING;
                if (deref_table(vcpu->kvm, ptr, &ste.val))
                        return -EFAULT;
@@ -748,7 +748,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
                ptr = ste.fc0.pto * (PAGE_SIZE / 2) + vaddr.px * 8;
        }
        }
-       if (kvm_is_error_gpa(vcpu->kvm, ptr))
+       if (!kvm_is_gpa_in_memslot(vcpu->kvm, ptr))
                return PGM_ADDRESSING;
        if (deref_table(vcpu->kvm, ptr, &pte.val))
                return -EFAULT;
@@ -770,7 +770,7 @@ absolute_address:
                *prot = PROT_TYPE_IEP;
                return PGM_PROTECTION;
        }
-       if (kvm_is_error_gpa(vcpu->kvm, raddr.addr))
+       if (!kvm_is_gpa_in_memslot(vcpu->kvm, raddr.addr))
                return PGM_ADDRESSING;
        *gpa = raddr.addr;
        return 0;
@@ -957,7 +957,7 @@ static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
                                return rc;
                } else {
                        gpa = kvm_s390_real_to_abs(vcpu, ga);
-                       if (kvm_is_error_gpa(vcpu->kvm, gpa)) {
+                       if (!kvm_is_gpa_in_memslot(vcpu->kvm, gpa)) {
                                rc = PGM_ADDRESSING;
                                prot = PROT_NONE;
                        }

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index ea63ac7..3e5a1d7 100644 (file)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2878,7 +2878,7 @@ static int kvm_s390_vm_mem_op_abs(struct kvm *kvm, struct kvm_s390_mem_op *mop)
 
        srcu_idx = srcu_read_lock(&kvm->srcu);
 
-       if (kvm_is_error_gpa(kvm, mop->gaddr)) {
+       if (!kvm_is_gpa_in_memslot(kvm, mop->gaddr)) {
                r = PGM_ADDRESSING;
                goto out_unlock;
        }
@@ -2940,7 +2940,7 @@ static int kvm_s390_vm_mem_op_cmpxchg(struct kvm *kvm, struct kvm_s390_mem_op *m
 
        srcu_idx = srcu_read_lock(&kvm->srcu);
 
-       if (kvm_is_error_gpa(kvm, mop->gaddr)) {
+       if (!kvm_is_gpa_in_memslot(kvm, mop->gaddr)) {
                r = PGM_ADDRESSING;
                goto out_unlock;
        }

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index f875a40..1be19cc 100644 (file)
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -149,7 +149,7 @@ static int handle_set_prefix(struct kvm_vcpu *vcpu)
         * first page, since address is 8k aligned and memory pieces are always
         * at least 1MB aligned and have at least a size of 1MB.
         */
-       if (kvm_is_error_gpa(vcpu->kvm, address))
+       if (!kvm_is_gpa_in_memslot(vcpu->kvm, address))
                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
 
        kvm_s390_set_prefix(vcpu, address);
@@ -464,7 +464,7 @@ static int handle_test_block(struct kvm_vcpu *vcpu)
                return kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm);
        addr = kvm_s390_real_to_abs(vcpu, addr);
 
-       if (kvm_is_error_gpa(vcpu->kvm, addr))
+       if (!kvm_is_gpa_in_memslot(vcpu->kvm, addr))
                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
        /*
         * We don't expect errors on modern systems, and do not care

diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index d9696b5..55c34cb 100644 (file)
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -172,7 +172,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu,
         * first page, since address is 8k aligned and memory pieces are always
         * at least 1MB aligned and have at least a size of 1MB.
         */
-       if (kvm_is_error_gpa(vcpu->kvm, irq.u.prefix.address)) {
+       if (!kvm_is_gpa_in_memslot(vcpu->kvm, irq.u.prefix.address)) {
                *reg &= 0xffffffff00000000UL;
                *reg |= SIGP_STATUS_INVALID_PARAMETER;
                return SIGP_CC_STATUS_STORED;

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 3e1c046..81a9d1c 100644 (file)
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1779,11 +1779,11 @@ static inline hpa_t pfn_to_hpa(kvm_pfn_t pfn)
        return (hpa_t)pfn << PAGE_SHIFT;
 }
 
-static inline bool kvm_is_error_gpa(struct kvm *kvm, gpa_t gpa)
+static inline bool kvm_is_gpa_in_memslot(struct kvm *kvm, gpa_t gpa)
 {
        unsigned long hva = gfn_to_hva(kvm, gpa_to_gfn(gpa));
 
-       return kvm_is_error_hva(hva);
+       return !kvm_is_error_hva(hva);
 }
 
 static inline void kvm_gpc_mark_dirty_in_slot(struct gfn_to_pfn_cache *gpc)