diff code to enable blockdevice ( /dev/xxx)

[limbo127]

blockdevice is like raw image, we just need to change the size calculation

--- tmp/mvisor/images/raw.cc 2024-10-28 12:01:10.003886443 +0100
+++ images/raw.cc 2024-10-28 13:38:35.627238165 +0100
@@ -26,6 +26,9 @@

#include "logger.h"
#include "device_manager.h"
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <linux/fs.h>

class RawImage : public DiskImage {
private:
@@ -64,10 +67,14 @@
if (fd_ < 0)
MV_PANIC("disk file not found: %s", filepath_.c_str());

• long long size_;
  struct stat st;
  fstat(fd_, &st);
  block_size_ = 512;
  total_blocks_ = st.st_size / block_size_;

• if(ioctl(fd_,BLKGETSIZE64,&size_)!=-1)
  

•    total_blocks_ = size_ / block_size_;
  

• }

  long HandleIoRequest(const ImageIoRequest& request) {

[limbo127]

close by pull request submit #64