From: Nicholas Piggin <npiggin@gmail.com>
To: qemu-ppc@nongnu.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
qemu-devel@nongnu.org,
Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Subject: [PATCH] target/ppc: Use SMT4 small core chip type in POWER9/10 PVRs
Date: Tue, 16 May 2023 02:01:31 +1000 [thread overview]
Message-ID: <20230515160131.394562-1-npiggin@gmail.com> (raw)
QEMU's PVR value for POWER9 DD2.0 has chip type 1, which is the SMT4
"small core" type that OpenPOWER processors use. QEMU's PVR for all
other POWER9/10 have chip type 0, which "enterprise" systems use.
The difference does not really matter to QEMU (because it does not care
about SMT mode in the target), but for consistency all PVRs should use
the same chip type. We'll go with the SMT4 OpenPOWER type.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
This is a replacement for
https://lists.gnu.org/archive/html/qemu-ppc/2022-03/msg00227.html
But the chip type is changed to 1 instead of 0, because that's the
more familiar SM4 / small core CPU.
Thanks,
Nick
target/ppc/cpu-models.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/target/ppc/cpu-models.h b/target/ppc/cpu-models.h
index 1326493a9a..a77e036b3a 100644
--- a/target/ppc/cpu-models.h
+++ b/target/ppc/cpu-models.h
@@ -348,11 +348,11 @@ enum {
CPU_POWERPC_POWER8NVL_BASE = 0x004C0000,
CPU_POWERPC_POWER8NVL_v10 = 0x004C0100,
CPU_POWERPC_POWER9_BASE = 0x004E0000,
- CPU_POWERPC_POWER9_DD1 = 0x004E0100,
+ CPU_POWERPC_POWER9_DD1 = 0x004E1100,
CPU_POWERPC_POWER9_DD20 = 0x004E1200,
CPU_POWERPC_POWER10_BASE = 0x00800000,
- CPU_POWERPC_POWER10_DD1 = 0x00800100,
- CPU_POWERPC_POWER10_DD20 = 0x00800200,
+ CPU_POWERPC_POWER10_DD1 = 0x00801100,
+ CPU_POWERPC_POWER10_DD20 = 0x00801200,
CPU_POWERPC_970_v22 = 0x00390202,
CPU_POWERPC_970FX_v10 = 0x00391100,
CPU_POWERPC_970FX_v20 = 0x003C0200,
--
2.40.1
next reply other threads:[~2023-05-15 16:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-15 16:01 Nicholas Piggin [this message]
2023-05-16 8:43 ` [PATCH] target/ppc: Use SMT4 small core chip type in POWER9/10 PVRs Harsh Prateek Bora
2023-05-16 9:42 ` Nicholas Piggin
2023-05-16 8:44 ` Cédric Le Goater
2023-05-16 10:05 ` Nicholas Piggin
2023-05-27 18:03 ` Daniel Henrique Barboza
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