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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=adityag@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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 @ibm.com) X-ZM-MESSAGEID: 1765000794972019200 Content-Type: text/plain; charset="utf-8" Set the "Thread Register State Entry Size" that is required by firmware (OPAL), to know size of memory to allocate to capture CPU state, in the event of a crash Signed-off-by: Aditya Gupta --- hw/ppc/pnv.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 895132da91bd..643558f374e9 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -780,6 +780,30 @@ static void pnv_reset(MachineState *machine, ResetType= type) _FDT((fdt_pack(fdt))); } =20 + if (!pnv->mpipl_state.is_next_boot_mpipl) { + /* + * Set the "Thread Register State Entry Size", so that firmware can + * allocate enough memory to capture CPU state in the event of a + * crash + */ + + MpiplProcDumpArea proc_area; + + proc_area.version =3D PROC_DUMP_AREA_VERSION_P9; + proc_area.thread_size =3D cpu_to_be32(sizeof(MpiplPreservedCPUStat= e)); + + /* These are to be allocated & assigned by the firmware */ + proc_area.alloc_addr =3D 0; + proc_area.alloc_size =3D 0; + + /* These get assigned after crash, when QEMU preserves the registe= rs */ + proc_area.dest_addr =3D 0; + proc_area.act_size =3D 0; + + cpu_physical_memory_write(PROC_DUMP_AREA_OFF, &proc_area, + sizeof(proc_area)); + } + cpu_physical_memory_write(PNV_FDT_ADDR, fdt, fdt_totalsize(fdt)); =20 /* Update machine->fdt with latest fdt */ --=20 2.52.0