[Xen-devel] Source code explanation?
Is there anywhere I can find in depth and in detail explanation and description about xen source code and implementation, other than the comments in the source code? I need to understand credit scheduler source code line by line for me to be able to edit it for my needs. A description of what every method does and how they interact can be helpful, too. Or where can I ask my questions about code? ___ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
[Xen-devel] Understanding Xen event channel bit operation
Hi everybody I need to understand when these pending and mask bits are set and cleared. It seems pending bits are set by evtchn_set_pending method in event_channel.c but I don't understand where pending bit is cleared by the guest and where mask bit is set and reset? Can anybody help me with understanding this? Thanks all ___ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
[Xen-devel] Cannot boot into Dom0 after reading vcpu_info in sched_credit
Hi there
I need to access event channel mask and pending bits for a vcpu in
sched_credit.c. Thus I'm trying to get and print this info in runq_insert
using vcpu_info like this:
printk("\nhello %d %d
\n",vcpu_info(svc->vcpu,evtchn_upcall_mask),vcpu_info(svc->vcpu,evtchn_upcall_pending));
After compiling and resinstalling (of course without any errors) I reboot
my Dom0 but the machine does not boot with Xen and gets rebooted after
bootloader.
The same printk works without any problem when I use it in event_channel.c
to print those info.
So there are a few questions:
1. Any idea what is the reason of reboot and how to fix it?
2. Any idea how can I examine logs to find out the problem? Where and what
should I look for?
3. Any ideas to access per vcpu mask and pending bits in sched_credit.c
functions (e.g. runq_insert or runq_sort)
Thanks all
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