[PATCH 4/7] add debuging facilities to memory registration at libkvm

[Glauber Costa]

Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
---
 libkvm/libkvm.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/libkvm/libkvm.c b/libkvm/libkvm.c
index 11a9529..f7a7fdd 100644
--- a/libkvm/libkvm.c
+++ b/libkvm/libkvm.c
@@ -52,6 +52,15 @@
 #include "kvm-s390.h"
 #endif
 
+//#define DEBUG_MEMREG
+#ifdef DEBUG_MEMREG
+#define DPRINTF(fmt, args...) \
+       do { fprintf(stderr, "%s:%d " fmt , __func__, __LINE__, ##args); } 
while (0)
+#else
+#define DPRINTF(fmt, args...) do {} while (0)
+#endif
+
+
 int kvm_abi = EXPECTED_KVM_API_VERSION;
 int kvm_page_size;
 
@@ -445,6 +454,9 @@ int kvm_register_phys_mem(kvm_context_t kvm,
        int r;
 
        memory.slot = get_free_slot(kvm);
+       DPRINTF("memory: gpa: %llx, size: %llx, uaddr: %llx, slot: %x, flags: 
%lx\n",
+               memory.guest_phys_addr, memory.memory_size,
+               memory.userspace_addr, memory.slot, memory.flags);
        r = ioctl(kvm->vm_fd, KVM_SET_USER_MEMORY_REGION, &memory);
        if (r == -1) {
                fprintf(stderr, "create_userspace_phys_mem: %s\n", 
strerror(errno));
@@ -983,6 +995,7 @@ int kvm_unregister_coalesced_mmio(kvm_context_t kvm, 
uint64_t addr, uint32_t siz
                        perror("kvm_unregister_coalesced_mmio_zone");
                        return -errno;
                }
+               DPRINTF("Unregistered coalesced mmio region for %llx (%lx)\n", 
addr, size);
                return 0;
        }
 #endif
-- 
1.5.5.1

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