[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: [PATCH][RESEND] vmx-io-events.patch
This patch doesn't apply cleanly. -- Keir On 7 Jun 2005, at 01:13, Arun Sharma wrote: - Handle the case where the VMX domains get events from ports other thanIOPACKET_PORT (because of paravirtualized drivers) - Use clear_bit() to operate on evtchn_upcall_pending Signed-off-by: Xiaofeng Ling <xiaofeng.ling@xxxxxxxxx> Signed-off-by: Kevin Tian <kevin.tian@xxxxxxxxx> Signed-off-by: Arun Sharma <arun.sharma@xxxxxxxxx> --- trunk/xen/arch/x86/vmx_io.c (revision 1179) +++ trunk/xen/arch/x86/vmx_io.c (working copy) @@ -282,7 +282,7 @@ /* Note: VMX domains may need upcalls as well */ if (!ed->vcpu_info->evtchn_pending_sel) - ed->vcpu_info->evtchn_upcall_pending = 0; + clear_bit(0, &ed->vcpu_info->evtchn_upcall_pending); /* clear the pending bit for IOPACKET_PORT */ return test_and_clear_bit(IOPACKET_PORT, @@ -310,10 +310,16 @@ extern void do_block(); do { - do_block(); + if(!test_bit(IOPACKET_PORT, + ¤t->domain->shared_info->evtchn_pending[0])) + do_block(); vmx_check_events(current);if (!test_bit(ARCH_VMX_IO_WAIT, ¤t->arch.arch_vmx.flags))break;+ /* Events other than IOPACKET_PORT might have woken us up. In that+ case, safely go back to sleep. */+ clear_bit(IOPACKET_PORT>>5, ¤t->vcpu_info->evtchn_pending_sel);+ clear_bit(0, ¤t->vcpu_info->evtchn_upcall_pending); } while(1); } _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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