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From: David Gibson <david@gibson.dropbear.id.au>
To: groug@kaod.org
Cc: benh@kernel.crashing.org, qemu-ppc@nongnu.org,
	qemu-devel@nongnu.org, David Gibson <david@gibson.dropbear.id.au>
Subject: [Qemu-devel] [PATCH for-2.13 04/10] spapr: Set compatibility mode before the rest of spapr_cpu_reset()
Date: Tue, 17 Apr 2018 17:17:16 +1000	[thread overview]
Message-ID: <20180417071722.9399-5-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20180417071722.9399-1-david@gibson.dropbear.id.au>

Although the order doesn't really matter at the moment, it's possible
other initializastions could depend on the compatiblity mode, so make sure
we set it first in spapr_cpu_reset().

While we're at it drop the test against first_cpu.  Setting the compat mode
to the value it already has is redundant, but harmless, so we might as well
make a small simplification to the code.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/spapr_cpu_core.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index f39d99a8da..2aab6ccd15 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -31,6 +31,11 @@ static void spapr_cpu_reset(void *opaque)
 
     cpu_reset(cs);
 
+    /* Set compatibility mode to match the boot CPU, which was either set
+     * by the machine reset code or by CAS. This should never fail.
+     */
+    ppc_set_compat(cpu, POWERPC_CPU(first_cpu)->compat_pvr, &error_abort);
+
     /* All CPUs start halted.  CPU0 is unhalted from the machine level
      * reset code and the rest are explicitly started up by the guest
      * using an RTAS call */
@@ -43,12 +48,6 @@ static void spapr_cpu_reset(void *opaque)
         env->spr[SPR_LPCR] &= ~pcc->lpcr_pm;
     }
 
-    /* Set compatibility mode to match the boot CPU, which was either set
-     * by the machine reset code or by CAS. This should never fail.
-     */
-    if (cs != first_cpu) {
-        ppc_set_compat(cpu, POWERPC_CPU(first_cpu)->compat_pvr, &error_abort);
-    }
 }
 
 static void spapr_cpu_destroy(PowerPCCPU *cpu)
-- 
2.14.3

  parent reply	other threads:[~2018-04-17  7:17 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-17  7:17 [Qemu-devel] [PATCH for-2.13 00/10] spapr: Cleanups to PAPR mode setup David Gibson
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 01/10] spapr: Avoid redundant calls to spapr_cpu_reset() David Gibson
2018-04-19 13:48   ` Greg Kurz
2018-04-20  6:34     ` David Gibson
2018-04-20  9:15       ` Greg Kurz
2018-04-20 15:39         ` [Qemu-devel] [Qemu-ppc] " Greg Kurz
2018-06-18  3:42           ` David Gibson
2018-06-18  9:01             ` Greg Kurz
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 02/10] spapr: Remove support for PowerPC 970 with pseries machine type David Gibson
2018-04-19 17:21   ` Greg Kurz
2018-04-20  5:58     ` [Qemu-devel] [Qemu-ppc] " Thomas Huth
2018-04-20  6:40     ` [Qemu-devel] " David Gibson
2018-04-20  6:48       ` [Qemu-devel] [Qemu-ppc] " luigi burdo
2018-04-20  7:15         ` David Gibson
2018-04-20 12:25   ` [Qemu-devel] " Greg Kurz
2018-05-03  6:23     ` David Gibson
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 03/10] target/ppc: Remove unnecessary initialization of LPCR_UPRT David Gibson
2018-04-20 11:34   ` Greg Kurz
2018-04-20 12:57     ` David Gibson
2018-04-25  9:52   ` [Qemu-devel] [Qemu-ppc] " Cédric Le Goater
2018-04-26  6:46     ` David Gibson
2018-04-26  7:20       ` Cédric Le Goater
2018-05-01  6:39         ` David Gibson
2018-05-01 15:59           ` Cédric Le Goater
2018-04-17  7:17 ` David Gibson [this message]
2018-04-20  9:16   ` [Qemu-devel] [PATCH for-2.13 04/10] spapr: Set compatibility mode before the rest of spapr_cpu_reset() Greg Kurz
2018-04-20 10:48     ` David Gibson
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 05/10] spapr: Move PAPR mode register initialization to spapr code David Gibson
2018-04-20 15:42   ` Greg Kurz
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 06/10] target/ppc: Add ppc_store_lpcr() helper David Gibson
2018-04-20 15:46   ` Greg Kurz
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 07/10] spapr: Make a helper to set up cpu entry point state David Gibson
2018-04-20 15:48   ` Greg Kurz
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 08/10] spapr: Clean up handling of LPCR power-saving exit bits David Gibson
2018-04-20 15:56   ` Greg Kurz
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 09/10] target/ppc: Don't bother with MSR_EP in cpu_ppc_set_papr() David Gibson
2018-04-20  6:08   ` [Qemu-devel] [Qemu-ppc] " Thomas Huth
2018-04-20  6:21     ` David Gibson
2018-04-17  7:17 ` [Qemu-devel] [PATCH for-2.13 10/10] spapr: Move PAPR specific cpu logic to pseries machine type David Gibson
2018-04-20 15:58   ` Greg Kurz

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