diff options
| author |   Izik Eidus <izik@Home1.(none)> | 2007-10-13 02:56:25 +0200 |
|---|---|---|
| committer |   Avi Kivity <avi@qumranet.com> | 2007-10-18 11:58:26 +0200 |
| commit | b20936d8df47a66e0c988f05cf1a60d630d108bc (patch) | |
| tree | 219d3d3b3ad1125bcb061bfc55d2c4cd36864799 | |
| parent | 5552ba77e3f805c4ed539ee0ff0f07a3bb1dbe51 (diff) | |
kvm: libkvm: don't zero out guest memorykvm-47
now that gfn_to_page() get called at run time, we dont have to do memset on
the memory.
(it is now much faster to load VM with alot of memory)
Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
| -rw-r--r-- | kvm/user/kvmctl.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/kvm/user/kvmctl.c b/kvm/user/kvmctl.c index 0604f2f19..ff2014e88 100644 --- a/kvm/user/kvmctl.c +++ b/kvm/user/kvmctl.c @@ -391,7 +391,6 @@ int kvm_alloc_userspace_memory(kvm_context_t kvm, unsigned long memory, low_memory.userspace_addr = (unsigned long)*vm_mem; - memset((unsigned long *)low_memory.userspace_addr, 0, low_memory.memory_size); /* 640K should be enough. */ r = ioctl(kvm->vm_fd, KVM_SET_USER_MEMORY_REGION, &low_memory); if (r == -1) { @@ -406,7 +405,6 @@ int kvm_alloc_userspace_memory(kvm_context_t kvm, unsigned long memory, return -1; } extended_memory.userspace_addr = (unsigned long)(*vm_mem + exmem); - memset((unsigned long *)extended_memory.userspace_addr, 0, extended_memory.memory_size); r = ioctl(kvm->vm_fd, KVM_SET_USER_MEMORY_REGION, &extended_memory); if (r == -1) { fprintf(stderr, "kvm_create_memory_region: %m\n"); @@ -422,7 +420,6 @@ int kvm_alloc_userspace_memory(kvm_context_t kvm, unsigned long memory, return -1; } above_4g_memory.userspace_addr = (unsigned long)(*vm_mem + 0x100000000); - memset((unsigned long *)above_4g_memory.userspace_addr, 0, above_4g_memory.memory_size); r = ioctl(kvm->vm_fd, KVM_SET_USER_MEMORY_REGION, &above_4g_memory); if (r == -1) { fprintf(stderr, "kvm_create_memory_region: %m\n"); |