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spapr: Print out extra hints when CAS negotiation of interrupt mode fails 

Let's suggest to the user how the machine should be configured to allow
the guest to boot successfully.

Suggested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155799221739.527449.14907564571096243745.stgit@bahia.lan>
Reviewed-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
[dwg: Adjusted for style error]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2019-05-16 09:36:57 +02:00 committed by David Gibson
parent eb3cba8272
commit 75de59416d
1 changed files with 4 additions and 2 deletions
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6
hw/ppc/spapr_hcall.c
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@ -1646,12 +1646,14 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu,
*/
if (guest_xive) {
if (spapr->irq->ov5 == SPAPR_OV5_XIVE_LEGACY) {
error_report("Guest requested unavailable interrupt mode (XIVE)");
error_report(
"Guest requested unavailable interrupt mode (XIVE), try the ic-mode=xive or ic-mode=dual machine property");
exit(EXIT_FAILURE);
}
} else {
if (spapr->irq->ov5 == SPAPR_OV5_XIVE_EXPLOIT) {
error_report("Guest requested unavailable interrupt mode (XICS)");
error_report(
"Guest requested unavailable interrupt mode (XICS), either don't set the ic-mode machine property or try ic-mode=xics or ic-mode=dual");
exit(EXIT_FAILURE);
}
}