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Tue, 11 Mar 2025 06:00:35 -0700 (PDT) From: Nicholas Piggin To: qemu-devel@nongnu.org Cc: Nicholas Piggin , qemu-ppc@nongnu.org, dan tan Subject: [PULL 42/72] ppc/pnv: Add new PowerPC Special Purpose Registers (RWMR) Date: Tue, 11 Mar 2025 22:57:36 +1000 Message-ID: <20250311125815.903177-43-npiggin@gmail.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250311125815.903177-1-npiggin@gmail.com> References: <20250311125815.903177-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::633; envelope-from=npiggin@gmail.com; helo=mail-pl1-x633.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1741700737849019000 Content-Type: text/plain; charset="utf-8" From: dan tan Register RWMR - Region Weighted Mode Register for privileged access in Power9 and Power10 It controls what the SPURR register produces. Specs: - Power10: https://files.openpower.foundation/s/EgCy7C43p2NSRfR TCG does not model SMT priority, timing, resource controls and status so this register has no effect for now. [npiggin: adjust changelog] Signed-off-by: dan tan Message-ID: <20250116154226.13376-1-dantan@linux.vnet.ibm.com> Signed-off-by: Nicholas Piggin --- target/ppc/cpu.h | 1 + target/ppc/cpu_init.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 682583d1d1..25b1e6d6b0 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -2102,6 +2102,7 @@ void ppc_compat_add_property(Object *obj, const char = *name, #define SPR_PMCR (0x374) #define SPR_440_ITV0 (0x374) #define SPR_440_ITV1 (0x375) +#define SPR_RWMR (0x375) #define SPR_440_ITV2 (0x376) #define SPR_440_ITV3 (0x377) #define SPR_440_CCR1 (0x378) diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 54035c7bbb..8d73e11540 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -5773,6 +5773,11 @@ static void register_power9_book4_sprs(CPUPPCState *= env) SPR_NOACCESS, SPR_NOACCESS, &spr_read_generic, &spr_write_generic, KVM_REG_PPC_WORT, 0); + spr_register_hv(env, SPR_RWMR, "RWMR", + SPR_NOACCESS, SPR_NOACCESS, + &spr_read_generic, &spr_write_generic, + &spr_read_generic, &spr_write_generic, + 0x00000000); #endif } =20 --=20 2.47.1