On 11/11/2011 03:09 PM, Cao,Bing Bu wrote:
With -icount, the vm_clock is updated with help from TCG (it counts
instructions at 2^ICOUNT ns/instructions). With KVM, the instruction count is
not available so KVM cannot provide this help.
Signed-off-by: Cao,Bing Bu<m...@linux.vnet.ibm.com>
---
vl.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/vl.c b/vl.c
index f169aac..d2857a4 100644
--- a/vl.c
+++ b/vl.c
@@ -3226,8 +3226,12 @@ int main(int argc, char **argv, char **envp)
fprintf(stderr, "could not initialize alarm timer\n");
exit(1);
}
- configure_icount(icount_option);
-
+ if (!kvm_enabled()) {
+ configure_icount(icount_option);
+ } else {
+ fprintf(stderr, "-icount option only allowed without kvm
accelerator\n");
+ exit(1);
+ }
if (net_init_clients()< 0) {
exit(1);
}
This patch has a obvious bug,so bad!
Sorry for that, and the new patch has been added by Max Filippov.
+ if (icount_option && (kvm_enabled() || xen_enabled())) {
+ fprintf(stderr, "-icount is not allowed with kvm or xen\n");
+ exit(1);
+ }
configure_icount(icount_option);
--
Best Regards,
Cao,Bing Bu