Skip to content

Q
qemu

openeuler / qemu

通知 10
Star 0
Fork 0
Q
qemu

体验新版 GitCode，发现更多精彩内容 >>

切换分支/标签
  1. 06 11月, 2008 1 次提交
    • A
      Add KVM support to QEMU · 7ba1e619
      由 aliguori 提交于 
      This patch adds very basic KVM support.  KVM is a kernel module for Linux that
allows userspace programs to make use of hardware virtualization support.  It
current supports x86 hardware virtualization using Intel VT-x or AMD-V.  It
also supports IA64 VT-i, PPC 440, and S390.

This patch only implements the bare minimum support to get a guest booting.  It
has very little impact the rest of QEMU and attempts to integrate nicely with
the rest of QEMU.

Even though this implementation is basic, it is significantly faster than TCG.
Booting and shutting down a Linux guest:

w/TCG:  1:32.36 elapsed  84% CPU

w/KVM:  0:31.14 elapsed  59% CPU

Right now, KVM is disabled by default and must be explicitly enabled with
 -enable-kvm.  We can enable it by default later when we have had better
testing.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5627 c046a42c-6fe2-441c-8c8c-71466251a162
      7ba1e619
  3. 01 11月, 2008 1 次提交
  5. 27 10月, 2008 1 次提交
  7. 24 10月, 2008 1 次提交
  9. 12 10月, 2008 1 次提交
  11. 11 10月, 2008 2 次提交
  13. 09 10月, 2008 1 次提交
    • A
      Fix IO performance regression in sparc · 9e472e10
      由 aliguori 提交于 
      Replace signalfd with signal handler/pipe.  There is no way to interrupt
the CPU execution loop when a file descriptor becomes readable.  This
results in a large performance regression in sparc emulation during
bootup.
   
This patch switches us to signal handler/pipe which was originally
suggested by Ian Jackson.  The signal handler lets us interrupt the
CPU emulation loop while the write to a pipe lets us avoid the
select/signal race condition.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5451 c046a42c-6fe2-441c-8c8c-71466251a162
      9e472e10
  15. 08 10月, 2008 2 次提交
  17. 01 10月, 2008 1 次提交
  19. 30 9月, 2008 2 次提交
  21. 29 9月, 2008 1 次提交
    • B
      Implement a HCI passthrough to host. · fb599c9a
      由 balrog 提交于 
      This allows using a host's physical HCI as one of the HCIs attached
to the virtual machine.  This brings various limitations because not
all commands/events are passed through by Linux kernel, some are
interpreted by the host's kernel for a speed gain.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5344 c046a42c-6fe2-441c-8c8c-71466251a162
      fb599c9a
  23. 28 9月, 2008 1 次提交
    • A
      Make compatfd fallback more robust · 27463101
      由 aliguori 提交于 
      Be more friendly when signalfd() fails, and also add configure checks to detect
that syscall(SYS_signalfd) actually works.  malc pointed out that some installs
do not have /usr/include/linux headers that are in sync with the glibc headers
so why SYS_signalfd is defined, it's #defined to _NR_signalfd which is not
defined in the /usr/include/linux header.

While this is a distro bug, it doesn't hurt to do a more thorough job in
detection.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5334 c046a42c-6fe2-441c-8c8c-71466251a162
      27463101
  25. 26 9月, 2008 1 次提交
  27. 18 9月, 2008 1 次提交
  29. 15 9月, 2008 1 次提交
  31. 14 9月, 2008 1 次提交
  33. 12 9月, 2008 2 次提交
  35. 08 9月, 2008 1 次提交
  37. 07 9月, 2008 1 次提交
  39. 02 9月, 2008 1 次提交
  41. 22 8月, 2008 3 次提交
  43. 16 8月, 2008 2 次提交
  45. 14 8月, 2008 1 次提交
  47. 07 8月, 2008 1 次提交
  49. 29 7月, 2008 1 次提交
  51. 25 7月, 2008 1 次提交
  53. 24 7月, 2008 2 次提交
  55. 20 7月, 2008 2 次提交
  57. 19 7月, 2008 1 次提交
  59. 03 7月, 2008 2 次提交