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Tue, 19 Sep 2023 17:31:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=Sf6y0NMsrhXGwj848huaJWakvsIgIFJHrg9cthj5n3w=; b=SEY2DW/R2DhIS5/x5s7y09Cvf8NQDUxu1F6MKKUt1TySBrr5vkiaL5BViY8ORUnFbBQQ QheZBD50tyzrVoQwgrYt8NABmQ7HsbJSRLTbV9L4hflaJkMWTeIEpZhUAD4bY2hSM1tj fYKvGr3rwOcFTSllZ9PMHP2YiTJjC7agzqgAT7pRFgbG6nvvDS6KZO3zpe+lf1TFY5kY 7y2c5gGenljghQuQybYQ98rkle9otwH3D2abZCZjbLT3xJJtNtaFoyw7Vn8QjlP/12d/ khHP56XYnBz6Uo6o0xdjMY7wlzePo4jz6dZvmiAP4OVZFxneqn1/chOKc7DCdW34FSgM cA== From: Glenn Miles To: qemu-ppc@nongnu.org Cc: Glenn Miles , qemu-devel@nongnu.org, Daniel Henrique Barboza , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Nicholas Piggin , David Gibson Subject: [PATCH v2 4/4] target/ppc: Add migration support for BHRB Date: Tue, 19 Sep 2023 17:30:05 -0500 Message-Id: <20230919223005.3441713-5-milesg@linux.vnet.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20230919223005.3441713-1-milesg@linux.vnet.ibm.com> References: <20230919223005.3441713-1-milesg@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: cdegJ6uoplRTvClwYOs6gqGkHAsi593V X-Proofpoint-GUID: suCA4OikVST0fnSMoC4XLrZStDS3Jnmo X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-19_12,2023-09-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 phishscore=0 mlxlogscore=784 impostorscore=0 bulkscore=0 suspectscore=0 mlxscore=0 malwarescore=0 clxscore=1015 priorityscore=1501 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309190193 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=148.163.156.1; envelope-from=mglenn@mamboa4.aus.stglabs.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1695164564016100007 Content-Type: text/plain; charset="utf-8" Adds migration support for Branch History Rolling Buffer (BHRB) internal state. Signed-off-by: Glenn Miles --- target/ppc/machine.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/target/ppc/machine.c b/target/ppc/machine.c index d42e475bfb..ba328ad5e2 100644 --- a/target/ppc/machine.c +++ b/target/ppc/machine.c @@ -711,6 +711,26 @@ static const VMStateDescription vmstate_reservation = =3D { } }; =20 +#ifdef TARGET_PPC64 +static bool bhrb_needed(void *opaque) +{ + PowerPCCPU *cpu =3D opaque; + return (cpu->env.flags & POWERPC_FLAG_BHRB) !=3D 0; +} + +static const VMStateDescription vmstate_bhrb =3D { + .name =3D "cpu/bhrb", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D bhrb_needed, + .fields =3D (VMStateField[]) { + VMSTATE_UINTTL(env.bhrb_offset, PowerPCCPU), + VMSTATE_UINT64_ARRAY(env.bhrb, PowerPCCPU, BHRB_MAX_NUM_ENTRIES), + VMSTATE_END_OF_LIST() + } +}; +#endif + const VMStateDescription vmstate_ppc_cpu =3D { .name =3D "cpu", .version_id =3D 5, @@ -756,6 +776,7 @@ const VMStateDescription vmstate_ppc_cpu =3D { #ifdef TARGET_PPC64 &vmstate_tm, &vmstate_slb, + &vmstate_bhrb, #endif /* TARGET_PPC64 */ &vmstate_tlb6xx, &vmstate_tlbemb, --=20 2.31.1