[Xen-changelog] [xen staging] x86/IO-APIC: dump full destination ID in x2APIC mode

[patchbot@xxxxxxx]

commit 97fcef9d44afdf6b5c4ad2958c880795cf66d781
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Mon Jun 17 17:35:41 2019 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Jun 17 17:35:41 2019 +0200

    x86/IO-APIC: dump full destination ID in x2APIC mode
    
    In x2APIC mode it is 32 bits wide.
    
    In __print_IO_APIC() drop logging of both physical and logical IDs:
    The latter covers a superset of the bits of the former in the RTE, and
    we write full 8-bit values anyway even in physical mode for all ordinary
    interrupts, regardless of INT_DEST_MODE (see the users of SET_DEST()).
    
    Adjust other column arrangement (and heading) a little as well.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/io_apic.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/xen/arch/x86/io_apic.c b/xen/arch/x86/io_apic.c
index 332d62c19f..7705ffc113 100644
--- a/xen/arch/x86/io_apic.c
+++ b/xen/arch/x86/io_apic.c
@@ -1189,21 +1189,21 @@ static void /*__init*/ __print_IO_APIC(bool boot)
 
        printk(KERN_DEBUG ".... IRQ redirection table:\n");
 
-       printk(KERN_DEBUG " NR Log Phy Mask Trig IRR Pol"
-               " Stat Dest Deli Vect:   \n");
+       printk(KERN_DEBUG " NR %s Msk Trg IRR Pol Stat DstM DelM Vec\n",
+               x2apic_enabled ? " DestID" : "Dst");
 
        for (i = 0; i <= reg_01.bits.entries; i++) {
             struct IO_APIC_route_entry entry;
 
             entry = ioapic_read_entry(apic, i, 0);
 
-            printk(KERN_DEBUG " %02x %03X %02X  ",
-                   i,
-                   entry.dest.logical.logical_dest,
-                   entry.dest.physical.physical_dest
-               );
+            if ( x2apic_enabled )
+                printk(KERN_DEBUG " %02x %08x", i, entry.dest.dest32);
+            else
+                printk(KERN_DEBUG " %02x  %02x ", i,
+                       entry.dest.logical.logical_dest);
 
-            printk("%1d    %1d    %1d   %1d   %1d    %1d    %1d    %02X\n",
+            printk(" %d   %d   %d   %d   %d    %d    %d    %02X\n",
                    entry.mask,
                    entry.trigger,
                    entry.irr,
@@ -2479,12 +2479,14 @@ void dump_ioapic_irq_info(void)
             rte = ioapic_read_entry(entry->apic, pin, 0);
 
             printk("vec=%02x delivery=%-5s dest=%c status=%d "
-                   "polarity=%d irr=%d trig=%c mask=%d dest_id:%d\n",
+                   "polarity=%d irr=%d trig=%c mask=%d dest_id:%0*x\n",
                    rte.vector, delivery_mode_2_str(rte.delivery_mode),
                    rte.dest_mode ? 'L' : 'P',
                    rte.delivery_status, rte.polarity, rte.irr,
                    rte.trigger ? 'L' : 'E', rte.mask,
-                   rte.dest.logical.logical_dest);
+                   x2apic_enabled ? 8 : 2,
+                   x2apic_enabled ? rte.dest.dest32
+                                  : rte.dest.logical.logical_dest);
 
             if ( entry->next == 0 )
                 break;
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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