qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Nicholas Piggin <npiggin@gmail.com>
To: qemu-ppc@nongnu.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
	qemu-devel@nongnu.org,
	Daniel Henrique Barboza <danielhb413@gmail.com>,
	David Gibson <david@gibson.dropbear.id.au>,
	Harsh Prateek Bora <harshpb@linux.ibm.com>
Subject: [PATCH v2 10/10] spapr: set MSR[ME] and MSR[FP] on client entry
Date: Tue, 12 Mar 2024 23:14:19 +1000	[thread overview]
Message-ID: <20240312131419.2196845-11-npiggin@gmail.com> (raw)
In-Reply-To: <20240312131419.2196845-1-npiggin@gmail.com>

The initial MSR state for the OpenFirmware binding specifies
MSR[ME] and MSR[FP] are set.

Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 hw/ppc/spapr_cpu_core.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 50523ead25..e7c9edd033 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -39,9 +39,13 @@ static void spapr_reset_vcpu(PowerPCCPU *cpu)
 
     /*
      * "PowerPC Processor binding to IEEE 1275" defines the initial MSR state
-     * as 32bit (MSR_SF=0) in "8.2.1. Initial Register Values".
+     * as 32bit (MSR_SF=0) with MSR_ME=1 and MSR_FP=1 in "8.2.1. Initial
+     * Register Values". This can also be found in "LoPAPR 1.1" "C.9.2.1
+     * Initial Register Values".
      */
     env->msr &= ~(1ULL << MSR_SF);
+    env->msr |= (1ULL << MSR_ME) | (1ULL << MSR_FP);
+
     env->spr[SPR_HIOR] = 0;
 
     lpcr = env->spr[SPR_LPCR];
-- 
2.42.0



      parent reply	other threads:[~2024-03-12 13:16 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-12 13:14 [PATCH v2 00/10] misc ppc patches Nicholas Piggin
2024-03-12 13:14 ` [PATCH v2 01/10] ppc: Drop support for POWER9 and POWER10 DD1 chips Nicholas Piggin
2024-03-12 13:14 ` [PATCH v2 02/10] target/ppc: POWER10 does not have transactional memory Nicholas Piggin
2024-03-12 13:14 ` [PATCH v2 03/10] ppc/spapr|pnv: Remove SAO from pa-features Nicholas Piggin
2024-03-14  2:34   ` David Gibson
2024-03-14  4:49     ` Nicholas Piggin
2024-03-12 13:14 ` [PATCH v2 04/10] ppc/spapr: Remove copy-paste " Nicholas Piggin
2024-03-14  2:35   ` David Gibson
2024-03-12 13:14 ` [PATCH v2 05/10] ppc/spapr: Adjust ibm,pa-features for POWER9 Nicholas Piggin
2024-03-12 13:14 ` [PATCH v2 06/10] ppc/spapr: Add pa-features for POWER10 machines Nicholas Piggin
2024-03-12 13:14 ` [PATCH v2 07/10] ppc/pnv: Permit ibm, pa-features set per machine variant Nicholas Piggin
2024-03-12 13:39   ` Harsh Prateek Bora
2024-03-12 13:14 ` [PATCH v2 08/10] ppc/pnv: Set POWER9, POWER10 ibm,pa-features bits Nicholas Piggin
2024-03-12 13:44   ` Harsh Prateek Bora
2024-03-12 13:14 ` [PATCH v2 09/10] target/ppc: Prevent supervisor from modifying MSR[ME] Nicholas Piggin
2024-03-12 13:14 ` Nicholas Piggin [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240312131419.2196845-11-npiggin@gmail.com \
    --to=npiggin@gmail.com \
    --cc=danielhb413@gmail.com \
    --cc=david@gibson.dropbear.id.au \
    --cc=harshpb@linux.ibm.com \
    --cc=qemu-devel@nongnu.org \
    --cc=qemu-ppc@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).