[PATCH 4/9] qemu-kvm: Use upstream kvm_setup_guest_memory

[Jan Kiszka <jan.kiszka@xxxxxxxxxxx>]

Nothing missing in upstream kvm_setup_guest_memory, it is even more
careful about error handling.

Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
---
 kvm-all.c  |    3 ---
 kvm.h      |    3 +--
 qemu-kvm.c |   15 ---------------
 qemu-kvm.h |    1 -
 4 files changed, 1 insertions(+), 21 deletions(-)

diff --git a/kvm-all.c b/kvm-all.c
index 9f1808f..b9c1553 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -932,7 +932,6 @@ int kvm_has_vcpu_events(void)
     return kvm_state->vcpu_events;
 }
 
-#ifdef KVM_UPSTREAM
 void kvm_setup_guest_memory(void *start, size_t size)
 {
     if (!kvm_has_sync_mmu()) {
@@ -951,8 +950,6 @@ void kvm_setup_guest_memory(void *start, size_t size)
     }
 }
 
-#endif /* KVM_UPSTREAM */
-
 #ifdef KVM_CAP_SET_GUEST_DEBUG
 
 #ifdef KVM_UPSTREAM
diff --git a/kvm.h b/kvm.h
index f97efa3..724914d 100644
--- a/kvm.h
+++ b/kvm.h
@@ -48,10 +48,9 @@ int kvm_get_vcpu_events(CPUState *env);
 
 void kvm_cpu_register_phys_memory_client(void);
 
-#ifdef KVM_UPSTREAM
-
 void kvm_setup_guest_memory(void *start, size_t size);
 
+#ifdef KVM_UPSTREAM
 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
 void kvm_flush_coalesced_mmio_buffer(void);
diff --git a/qemu-kvm.c b/qemu-kvm.c
index 555d959..17a8080 100644
--- a/qemu-kvm.c
+++ b/qemu-kvm.c
@@ -2315,21 +2315,6 @@ void kvm_set_phys_mem(target_phys_addr_t start_addr, ram_addr_t size,
     return;
 }
 
-int kvm_setup_guest_memory(void *area, unsigned long size)
-{
-    int ret = 0;
-
-#ifdef MADV_DONTFORK
-    if (kvm_enabled() && !kvm_has_sync_mmu())
-        ret = madvise(area, size, MADV_DONTFORK);
-#endif
-
-    if (ret)
-        perror("madvise");
-
-    return ret;
-}
-
 #ifdef KVM_CAP_SET_GUEST_DEBUG
 
 struct kvm_set_guest_debug_data {
diff --git a/qemu-kvm.h b/qemu-kvm.h
index 069d2c6..f9c797f 100644
--- a/qemu-kvm.h
+++ b/qemu-kvm.h
@@ -923,7 +923,6 @@ void kvm_cpu_destroy_phys_mem(target_phys_addr_t start_addr,
                               unsigned long size);
 void kvm_qemu_log_memory(target_phys_addr_t start, target_phys_addr_t size,
                          int log);
-int kvm_setup_guest_memory(void *area, unsigned long size);
 int kvm_qemu_create_memory_alias(uint64_t phys_start, uint64_t len,
                                  uint64_t target_phys);
 int kvm_qemu_destroy_memory_alias(uint64_t phys_start);
-- 
1.6.0.2

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