KVM: Remove kvm_{read,write}_guest()

... in favor of the more general emulator_{read,write}_*.

Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 4 insertions, 70 deletions

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index a65a145f3050..4bbd89e03324 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -146,74 +146,6 @@ static inline int valid_vcpu(int n)
         return likely(n >= 0 && n < KVM_MAX_VCPUS);
 }
 
-int kvm_read_guest(struct kvm_vcpu *vcpu, gva_t addr, unsigned long size,
-                   void *dest)
-{
-        unsigned char *host_buf = dest;
-        unsigned long req_size = size;
-
-        while (size) {
-                hpa_t paddr;
-                unsigned now;
-                unsigned offset;
-                hva_t guest_buf;
-
-                paddr = gva_to_hpa(vcpu, addr);
-
-                if (is_error_hpa(paddr))
-                        break;
-
-                guest_buf = (hva_t)kmap_atomic(
-                                        pfn_to_page(paddr >> PAGE_SHIFT),
-                                        KM_USER0);
-                offset = addr & ~PAGE_MASK;
-                guest_buf |= offset;
-                now = min(size, PAGE_SIZE - offset);
-                memcpy(host_buf, (void*)guest_buf, now);
-                host_buf += now;
-                addr += now;
-                size -= now;
-                kunmap_atomic((void *)(guest_buf & PAGE_MASK), KM_USER0);
-        }
-        return req_size - size;
-}
-EXPORT_SYMBOL_GPL(kvm_read_guest);
-
-int kvm_write_guest(struct kvm_vcpu *vcpu, gva_t addr, unsigned long size,
-                    void *data)
-{
-        unsigned char *host_buf = data;
-        unsigned long req_size = size;
-
-        while (size) {
-                hpa_t paddr;
-                unsigned now;
-                unsigned offset;
-                hva_t guest_buf;
-                gfn_t gfn;
-
-                paddr = gva_to_hpa(vcpu, addr);
-
-                if (is_error_hpa(paddr))
-                        break;
-
-                gfn = vcpu->mmu.gva_to_gpa(vcpu, addr) >> PAGE_SHIFT;
-                mark_page_dirty(vcpu->kvm, gfn);
-                guest_buf = (hva_t)kmap_atomic(
-                                pfn_to_page(paddr >> PAGE_SHIFT), KM_USER0);
-                offset = addr & ~PAGE_MASK;
-                guest_buf |= offset;
-                now = min(size, PAGE_SIZE - offset);
-                memcpy((void*)guest_buf, host_buf, now);
-                host_buf += now;
-                addr += now;
-                size -= now;
-                kunmap_atomic((void *)(guest_buf & PAGE_MASK), KM_USER0);
-        }
-        return req_size - size;
-}
-EXPORT_SYMBOL_GPL(kvm_write_guest);
-
 void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
 {
         if (!vcpu->fpu_active || vcpu->guest_fpu_loaded)
@@ -1017,7 +949,7 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
         }
 }
 
-static int emulator_read_std(unsigned long addr,
+int emulator_read_std(unsigned long addr,
                              void *val,
                              unsigned int bytes,
                              struct kvm_vcpu *vcpu)
@@ -1051,6 +983,7 @@ static int emulator_read_std(unsigned long addr,
 
         return X86EMUL_CONTINUE;
 }
+EXPORT_SYMBOL_GPL(emulator_read_std);
 
 static int emulator_write_std(unsigned long addr,
                               const void *val,
@@ -1169,7 +1102,7 @@ static int emulator_write_emulated_onepage(unsigned long addr,
         return X86EMUL_CONTINUE;
 }
 
-static int emulator_write_emulated(unsigned long addr,
+int emulator_write_emulated(unsigned long addr,
                                    const void *val,
                                    unsigned int bytes,
                                    struct kvm_vcpu *vcpu)
@@ -1188,6 +1121,7 @@ static int emulator_write_emulated(unsigned long addr,
         }
         return emulator_write_emulated_onepage(addr, val, bytes, vcpu);
 }
+EXPORT_SYMBOL_GPL(emulator_write_emulated);
 
 static int emulator_cmpxchg_emulated(unsigned long addr,
                                      const void *old,