Re: [PATCH] compilation fix of ia64 hypervisor.c, utils.c (was Re: [Xen-ia64-devel] latest tree building fail.)

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

On Tue, May 09, 2006 at 03:11:09PM -0600, Alex Williamson wrote:

>    I only applied the first 2 chunks of this patch.  The rest seems to
> be patching code that doesn't yet exist.  This fixes the build problem,
> but I can't boot with a XEN_IA64_DOM0_VP=y xenlinux kernel.  It fails
> booting dom0 here:
> 
> (XEN) Linux version 2.6.16.13-xen (awilliam@xenbuild) (gcc version 3.4.6 
> 20060122 (prerelease) (Debian 3.4.5-2)) #1 SMP Tue May 9 13:01:02 MDT 2006
> EFI v1.00 by Xen/ia64: SALsystab=0xc000178 ACPI 2.0=0x3fdd6000 
> SMBIOS=0x3e52a000 HCDP=0x3fdd4000
> warning: unable to switch EFI into virtual mode (status=9223372036854775811)
> PCDP: v3 at 0x3fdd4000
> Explicit "console="; ignoring PCDP
> Initial ramdisk at: 0xe00000002bc00000 (0 bytes)
> SAL 0.1: Xen/ia64 Xen/ia64 version 0.0
> SAL: AP wakeup using external interrupt vector 0xf3
> xen_pal_emulator: UNIMPLEMENTED PAL CALL 42!!!!
> (XEN) No logical to physical processor mapping available
> vcpu_set_itc: Setting ar.itc is currently disabled
> (XEN) (this message is only displayed one)
> (XEN) ACPI: Local APIC address ffffffffffffffda
> ACPI: [APIC:0x07] ignored 4 entries of 8 found
> ACPI: Error parsing MADT - no IOSAPIC entries
> 
> I don't know if this matters at this point since the recommendation is
> currently XEN_IA64_DOM0_VP=n.  With that, everything builds and works
> with no obvious regressions.  Thanks,

It matters.
Dom0 should boot with XEN_IA64_DOM0_VP=y at least.
I tried the changeset 9984:e2fba6729281 of xen-ia64-unstable.hg
with with XEN_IA64_DOM0_VP=y.
I could boot dom0  and 1 domU.
(Multiple domU might have problems. I'm debugging it now)

- Did you pass nosmp boot parameter to xen?
- Does xen reboot after the above messages or just be silent?
  It seems that something occurs somewhere in acpi_boot_init() of
  linux/arch/ia64/kernel/acpi.c.
  Could you track it down more?

-- 
yamahata

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