1.1 --- a/.rootkeys	Mon Mar 14 22:54:43 2005 +0000
     1.2 +++ b/.rootkeys	Tue Mar 15 23:27:30 2005 +0000
     1.3 @@ -945,6 +945,7 @@ 41a26ebcJ30TFl1v2kR8rqpEBvOtVw xen/arch/
     1.4  421098b69pUiIJrqu_w0JMUnZ2uc2A xen/arch/ia64/smp.c
     1.5  421098b6_ToSGrf6Pk1Uwg5aMAIBxg xen/arch/ia64/smpboot.c
     1.6  421098b6AUdbxR3wyn1ATcmNuTao_Q xen/arch/ia64/tools/README.xenia64
     1.7 +42376c6dfyY0eq8MS2dK3BW2rFuEGg xen/arch/ia64/tools/README.xenia64linux
     1.8  421098b6rQ2BQ103qu1n1HNofbS2Og xen/arch/ia64/tools/mkbuildtree
     1.9  41a26ebc--sjlYZQxmIxyCx3jw70qA xen/arch/ia64/vcpu.c
    1.10  421098b6M2WhsJ_ZMzFamAQcdc5gzw xen/arch/ia64/vhpt.c

     2.1 --- a/xen/arch/ia64/domain.c	Mon Mar 14 22:54:43 2005 +0000
     2.2 +++ b/xen/arch/ia64/domain.c	Tue Mar 15 23:27:30 2005 +0000
     2.3 @@ -248,6 +248,7 @@ void new_thread(struct exec_domain *ed,
     2.4  	regs->pr = 0;
     2.5  	sw->pr = 0;
     2.6  	regs->ar_pfs = 0;
     2.7 +	sw->caller_unat = 0;
     2.8  	sw->ar_pfs = 0;
     2.9  	sw->ar_bspstore = new_rbs;
    2.10  	//regs->r13 = (unsigned long) ed;

     3.1 --- a/xen/arch/ia64/process.c	Mon Mar 14 22:54:43 2005 +0000
     3.2 +++ b/xen/arch/ia64/process.c	Tue Mar 15 23:27:30 2005 +0000
     3.3 @@ -204,10 +204,11 @@ void deliver_pending_interrupt(struct pt
     3.4  	struct exec_domain *ed = current;
     3.5  	// FIXME: Will this work properly if doing an RFI???
     3.6  	if (!is_idle_task(d) && user_mode(regs)) {
     3.7 -		vcpu_poke_timer(ed);
     3.8 +		//vcpu_poke_timer(ed);
     3.9  		if (vcpu_deliverable_interrupts(ed)) {
    3.10  			unsigned long isr = regs->cr_ipsr & IA64_PSR_RI;
    3.11 -			foodpi();
    3.12 +			if (vcpu_timer_pending_early(ed))
    3.13 +printf("*#*#*#* about to deliver early timer to domain %d!!!\n",ed->domain->id);
    3.14  			reflect_interruption(0,isr,0,regs,IA64_EXTINT_VECTOR);
    3.15  		}
    3.16  	}

     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/xen/arch/ia64/tools/README.xenia64linux	Tue Mar 15 23:27:30 2005 +0000
     4.3 @@ -0,0 +1,50 @@
     4.4 +INSTRUCTIONS FOR BUILDING XENLINUX/IA64
     4.5 +
     4.6 +1) In linux-2.6.9: (also tested with 2.6.10, 2.6.11.2)
     4.7 +	cp arch/ia64/configs/zx1_defconfig .config
     4.8 +2) vi .config
     4.9 +	unset CONFIG_IA32_SUPPORT
    4.10 +	unset CONFIG_IDE [for now, need to fix later]
    4.11 +	unset CONFIG_VIRTUAL_MEM_MAP [for now, need to fix later]
    4.12 +	set CONFIG_DISABLE_VHPT
    4.13 +3) if running on ski, it is useful to make the following change:
    4.14 +   a) at the beginning of drivers/acpi/motherboard.c:acpi_reserve_resources()
    4.15 +      add the line:
    4.16 +	if (!acpi_gbl_FADT) return;
    4.17 +4) Build linux.
    4.18 +   a) yes "" | make oldconfig
    4.19 +   b) check the resulting .config to ensure there are no modules used (because
    4.20 +      Xen/ia64 doesn't support them yet).  Change '=m' to '=n' and remake
    4.21 +   c) yes "" | make oldconfig
    4.22 +   d) make
    4.23 +5) Linux must be "privified" to run on Xen/ia64.  This process converts all
    4.24 +   privilege-sensitive instructions into privileged instructions.
    4.25 +	Usage: privify infile outfile
    4.26 +   Privify is very dumb... it will not overwrite outfile.  It also prints
    4.27 +   out a bunch of useless info that can be safely ignored (except for "panic").
    4.28 +   The privify program can be obtained from:
    4.29 +	ftp://ftp.hpl.hp.com/pub/xen-ia64/privify
    4.30 +6) debug fixes:
    4.31 +   a) periodically xenlinux/ia64 goes into a fit of printing
    4.32 +      "Oops: timer tick before it is due..."  This can be changed
    4.33 +      in arch/ia64/kernel/time.c to either ignore it or print something
    4.34 +      shorter
    4.35 +   b) The hp simulator (ski) console drivers can be turned on to allow
    4.36 +      output of early boot information from xenlinux.  This results
    4.37 +      in some duplication of later output (which can be ignored).
    4.38 +      i) in linux/arch/ia64/Makefile, force the sim drivers by changing
    4.39 +		drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim to
    4.40 +		drivers-y += arch/ia64/hp/sim
    4.41 +      ii) in linux/arch/ia64/hp/sim/Makefile, force the sim drivers
    4.42 +	  by changing obj-$(CONFIG_HP_SIMSERIAL) to obj-y and
    4.43 +          obj-$(CONFIG_HP_SIM_SERIAL_CONSOLE) to obj-y
    4.44 +      iii) in arch/ia64/kernel/setup.c:early_console_setup(), replace
    4.45 +           the contents of the routine with:
    4.46 +		extern struct console hpsim_cons;
    4.47 +		register_console(&hpsim_cons);
    4.48 +		return 0;
    4.49 +           (It may be necessary also to un-inline the routine, not sure.)
    4.50 +   c) It can be useful to modify linux/init/main.c to add a printf before
    4.51 +      or after a lot of the init calls
    4.52 +6) NOTE: mca currently has a problem with binary translation,
    4.53 +   must run with "nomca" as a kernel argument

     5.1 --- a/xen/arch/ia64/vcpu.c	Mon Mar 14 22:54:43 2005 +0000
     5.2 +++ b/xen/arch/ia64/vcpu.c	Tue Mar 15 23:27:30 2005 +0000
     5.3 @@ -572,6 +572,12 @@ UINT64 vcpu_deliverable_interrupts(VCPU 
     5.4  		vcpu_check_pending_interrupts(vcpu) != SPURIOUS_VECTOR);
     5.5  }
     5.6  
     5.7 +UINT64 vcpu_deliverable_timer(VCPU *vcpu)
     5.8 +{
     5.9 +	return (vcpu_get_psr_i(vcpu) &&
    5.10 +		vcpu_check_pending_interrupts(vcpu) == PSCB(vcpu,itv));
    5.11 +}
    5.12 +
    5.13  IA64FAULT vcpu_get_lid(VCPU *vcpu, UINT64 *pval)
    5.14  {
    5.15  extern unsigned long privop_trace;
    5.16 @@ -950,9 +956,28 @@ void vcpu_pend_timer(VCPU *vcpu)
    5.17  	UINT64 itv = PSCB(vcpu,itv) & 0xff;
    5.18  
    5.19  	if (vcpu_timer_disabled(vcpu)) return;
    5.20 +#if 1
    5.21 +	// attempt to flag "timer tick before its due" source
    5.22 +	{
    5.23 +	UINT64 itm = PSCB(vcpu,domain_itm);
    5.24 +	UINT64 now = ia64_get_itc();
    5.25 +	if (now < itm) printf("******* vcpu_pend_timer: pending before due!\n");
    5.26 +	}
    5.27 +#endif
    5.28  	vcpu_pend_interrupt(vcpu, itv);
    5.29  }
    5.30  
    5.31 +// returns true if ready to deliver a timer interrupt too early
    5.32 +UINT64 vcpu_timer_pending_early(VCPU *vcpu)
    5.33 +{
    5.34 +	UINT64 now = ia64_get_itc();
    5.35 +	UINT64 itm = PSCB(vcpu,domain_itm);
    5.36 +
    5.37 +	if (vcpu_timer_disabled(vcpu)) return 0;
    5.38 +	if (!itm) return 0;
    5.39 +	return (vcpu_deliverable_timer(vcpu) && (now < itm));
    5.40 +}
    5.41 +
    5.42  //FIXME: This is a hack because everything dies if a timer tick is lost
    5.43  void vcpu_poke_timer(VCPU *vcpu)
    5.44  {
    5.45 @@ -974,7 +999,7 @@ void vcpu_poke_timer(VCPU *vcpu)
    5.46  			if (irr & (1L<<(0xef-0xc0))) return;
    5.47  if (now-itm>0x800000)
    5.48  printf("*** poking timer: now=%lx,vitm=%lx,xitm=%lx,itm=%lx\n",now,itm,local_cpu_data->itm_next,ia64_get_itm());
    5.49 -			vcpu_pend_interrupt(vcpu, 0xefL);
    5.50 +			vcpu_pend_timer(vcpu);
    5.51  		}
    5.52  	}
    5.53  }

     6.1 --- a/xen/arch/ia64/xenmisc.c	Mon Mar 14 22:54:43 2005 +0000
     6.2 +++ b/xen/arch/ia64/xenmisc.c	Tue Mar 15 23:27:30 2005 +0000
     6.3 @@ -257,6 +257,7 @@ void context_switch(struct exec_domain *
     6.4  	//if (!is_idle_task(next->domain) )
     6.5  		//send_guest_virq(next, VIRQ_TIMER);
     6.6  	load_region_regs(current);
     6.7 +	if (vcpu_timer_expired(current)) vcpu_pend_timer(current);
     6.8  }
     6.9  
    6.10  void panic_domain(struct pt_regs *regs, const char *fmt, ...)
    6.11 @@ -276,5 +277,6 @@ void panic_domain(struct pt_regs *regs, 
    6.12  	printf(buf);
    6.13  	if (regs) show_registers(regs);
    6.14  	domain_pause_by_systemcontroller(current->domain);
    6.15 +	set_bit(DF_CRASHED, ed->domain->d_flags);
    6.16  	//while(test);
    6.17  }

     7.1 --- a/xen/include/asm-ia64/config.h	Mon Mar 14 22:54:43 2005 +0000
     7.2 +++ b/xen/include/asm-ia64/config.h	Tue Mar 15 23:27:30 2005 +0000
     7.3 @@ -1,7 +1,6 @@
     7.4  // control flags for turning on/off features under test
     7.5  #undef CLONE_DOMAIN0
     7.6 -//#define CLONE_DOMAIN0 3
     7.7 -#define USER_ACCESS
     7.8 +//#define CLONE_DOMAIN0 1
     7.9  
    7.10  // manufactured from component pieces
    7.11