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From: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au
Cc: qemu-devel@nongnu.org, clg@kaod.org, benh@kernel.crashing.org,
	nikunj@linux.vnet.ibm.com
Subject: [Qemu-devel] [PATCH v3 2/4] ppc/xics: An ICS with offset 0 is assumed to be uninitialized
Date: Thu,  7 Jul 2016 23:24:16 +0530	[thread overview]
Message-ID: <1467914058-30551-3-git-send-email-nikunj@linux.vnet.ibm.com> (raw)
In-Reply-To: <1467914058-30551-1-git-send-email-nikunj@linux.vnet.ibm.com>

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>

This will make life easier for dealing with dynamically configured
ICSes such as PHB3

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 include/hw/ppc/xics.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 6ad3057..8c22daf 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -150,7 +150,7 @@ struct ICSState {
 
 static inline bool ics_valid_irq(ICSState *ics, uint32_t nr)
 {
-    return (nr >= ics->offset)
+    return (ics->offset != 0) && (nr >= ics->offset)
         && (nr < (ics->offset + ics->nr_irqs));
 }
 
-- 
2.7.4

  parent reply	other threads:[~2016-07-07 17:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-07 17:54 [Qemu-devel] [PATCH v3 0/4] sPAPR xics rework/cleanup (pending) Nikunj A Dadhania
2016-07-07 17:54 ` [Qemu-devel] [PATCH v3 1/4] ppc/xics: Make the ICSState a list Nikunj A Dadhania
2016-07-08  4:15   ` David Gibson
2016-07-08  4:50     ` Nikunj A Dadhania
2016-07-08  5:16       ` David Gibson
2016-07-07 17:54 ` Nikunj A Dadhania [this message]
2016-07-08  4:49   ` [Qemu-devel] [PATCH v3 2/4] ppc/xics: An ICS with offset 0 is assumed to be uninitialized David Gibson
2016-07-07 17:54 ` [Qemu-devel] [PATCH v3 3/4] ppc/xics: Use a helper to add a new ICS Nikunj A Dadhania
2016-07-07 17:54 ` [Qemu-devel] [PATCH v3 4/4] ppc/xics: Split ICS into ics-base and ics class Nikunj A Dadhania
2016-07-08  4:53   ` David Gibson

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