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[Xen-ia64-devel] [PATCH] emulate PAL_HALT_LIGHT on domU
| To: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-ia64-devel] [PATCH] emulate PAL_HALT_LIGHT on domU |
| From: | Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx> |
| Date: | Wed, 05 Jul 2006 12:46:35 +0900 |
| Delivery-date: | Tue, 04 Jul 2006 20:48:54 -0700 |
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Hi, All This patch emulates Guest PAL_HALT_LIGHT on domU by using do_block and timer. It also adds the function of the timer event sending to domU at the vcpu woke up. Signed-off-by: Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx> About the timer event sending to domU The function "xen_timer_interrupt" on ParaVM/IA64 only sends the timer signal to current vcpu. When the idle domain is running, no domUx receives timer signal. If some domain cannot receive the timer signal during 10 secs, a message "BUG: soft lockup detected appeared" comes from domUx. To avoid this, I add a timer check routine at the vcpu woke up. I tested a few days. Thanks, Atsushi SAKAI
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