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From: Shivang Upadhyay <shivangu@linux.ibm.com>
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: adityag@linux.ibm.com, harshpb@linux.ibm.com, npiggin@gmail.com,
	milesg@linux.ibm.com, Shivang Upadhyay <shivangu@linux.ibm.com>
Subject: [PATCH 1/2] ppc/pnv: avoid regenerating DTB if external DTB is present
Date: Tue, 23 Jun 2026 12:01:55 +0530	[thread overview]
Message-ID: <20260623063156.1110370-2-shivangu@linux.ibm.com> (raw)
In-Reply-To: <20260623063156.1110370-1-shivangu@linux.ibm.com>

Signed-off-by: Shivang Upadhyay <shivangu@linux.ibm.com>
---
 hw/ppc/pnv.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 62812f22f8..6a636b5192 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -803,8 +803,14 @@ static void pnv_reset(MachineState *machine, ResetType type)
         mpipl_write_succeeded = do_mpipl_write(pnv);
     }
 
-    /* Regenerate device tree */
-    fdt = pnv_dt_create(machine);
+    if (machine->dtb) {
+        int file_size; /* discard */
+        fdt = load_device_tree(machine->dtb, &file_size);
+    } else {
+        /* Regenerate device tree */
+        fdt = pnv_dt_create(machine);
+    }
+
     _FDT((fdt_pack(fdt)));
 
     /*
-- 
2.54.0



  reply	other threads:[~2026-06-23  6:33 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-23  6:31 [PATCH 0/2] ppc/pnv: fixing external dtb Shivang Upadhyay
2026-06-23  6:31 ` Shivang Upadhyay [this message]
2026-06-25  7:51   ` [PATCH 1/2] ppc/pnv: avoid regenerating DTB if external DTB is present Aditya Gupta
2026-06-25  7:54     ` Shivang Upadhyay
2026-06-23  6:31 ` [PATCH 2/2] ppc/pnv: add test to verify external DTB is honored Shivang Upadhyay
2026-06-23  6:57   ` Amit Machhiwal
2026-06-23 15:42     ` Shivang Upadhyay
2026-06-25  7:02   ` Aditya Gupta
2026-06-25  7:30     ` Shivang Upadhyay
2026-06-26 11:22 ` [PATCH v2 0/2] ppc/pnv: fixing external dtb Shivang Upadhyay
2026-06-26 11:22   ` [PATCH v2 1/2] ppc/pnv: avoid regenerating DTB if external DTB is present Shivang Upadhyay
2026-06-29 11:41     ` Aditya Gupta
2026-06-26 11:22   ` [PATCH v2 2/2] ppc/pnv: add test to verify external DTB is honored Shivang Upadhyay
2026-06-29 11:53     ` Aditya Gupta
2026-06-30  9:37       ` Shivang Upadhyay

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