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Tsirkin" , Richard Henderson , Alex Williamson , Paolo Bonzini , Ani Sinha , Marcel Apfelbaum , "Dr. David Alan Gilbert" , Suravee Suthikulpanit , Joao Martins Subject: [PATCH v6 04/10] i386/pc: factor out above-4g end to an helper Date: Fri, 1 Jul 2022 17:10:08 +0100 Message-Id: <20220701161014.3850-5-joao.m.martins@oracle.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20220701161014.3850-1-joao.m.martins@oracle.com> References: <20220701161014.3850-1-joao.m.martins@oracle.com> X-Proofpoint-ORIG-GUID: W14OQlREpPXvHIUAN3ngYx81UyLcgCH_ X-Proofpoint-GUID: W14OQlREpPXvHIUAN3ngYx81UyLcgCH_ 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=205.220.177.32; envelope-from=joao.m.martins@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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" X-ZohoMail-DKIM: pass (identity @oracle.com) X-ZM-MESSAGEID: 1656692437837100001 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" There's a couple of places that seem to duplicate this calculation of RAM size above the 4G boundary. Move all those to a helper function. Signed-off-by: Joao Martins Reviewed-by: Igor Mammedov --- hw/i386/pc.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 1bb89a9c17ec..6c7c49ca5a32 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -814,6 +814,17 @@ void xen_load_linux(PCMachineState *pcms) #define PC_ROM_ALIGN 0x800 #define PC_ROM_SIZE (PC_ROM_MAX - PC_ROM_MIN_VGA) =20 +static hwaddr pc_above_4g_end(PCMachineState *pcms) +{ + X86MachineState *x86ms =3D X86_MACHINE(pcms); + + if (pcms->sgx_epc.size !=3D 0) { + return sgx_epc_above_4g_end(&pcms->sgx_epc); + } + + return x86ms->above_4g_mem_start + x86ms->above_4g_mem_size; +} + void pc_memory_init(PCMachineState *pcms, MemoryRegion *system_memory, MemoryRegion *rom_memory, @@ -891,15 +902,8 @@ void pc_memory_init(PCMachineState *pcms, exit(EXIT_FAILURE); } =20 - if (pcms->sgx_epc.size !=3D 0) { - machine->device_memory->base =3D sgx_epc_above_4g_end(&pcms->s= gx_epc); - } else { - machine->device_memory->base =3D - x86ms->above_4g_mem_start + x86ms->above_4g_mem_size; - } - machine->device_memory->base =3D - ROUND_UP(machine->device_memory->base, 1 * GiB); + ROUND_UP(pc_above_4g_end(pcms), 1 * GiB); =20 if (pcmc->enforce_aligned_dimm) { /* size device region assuming 1G page max alignment per slot = */ @@ -928,10 +932,8 @@ void pc_memory_init(PCMachineState *pcms, if (!pcmc->broken_reserved_end) { cxl_base +=3D memory_region_size(&machine->device_memory->= mr); } - } else if (pcms->sgx_epc.size !=3D 0) { - cxl_base =3D sgx_epc_above_4g_end(&pcms->sgx_epc); } else { - cxl_base =3D x86ms->above_4g_mem_start + x86ms->above_4g_mem_s= ize; + cxl_base =3D pc_above_4g_end(pcms); } =20 e820_add_entry(cxl_base, cxl_size, E820_RESERVED); @@ -1018,7 +1020,6 @@ uint64_t pc_pci_hole64_start(void) PCMachineState *pcms =3D PC_MACHINE(qdev_get_machine()); PCMachineClass *pcmc =3D PC_MACHINE_GET_CLASS(pcms); MachineState *ms =3D MACHINE(pcms); - X86MachineState *x86ms =3D X86_MACHINE(pcms); uint64_t hole64_start =3D 0; =20 if (pcms->cxl_devices_state.host_mr.addr) { @@ -1036,10 +1037,8 @@ uint64_t pc_pci_hole64_start(void) if (!pcmc->broken_reserved_end) { hole64_start +=3D memory_region_size(&ms->device_memory->mr); } - } else if (pcms->sgx_epc.size !=3D 0) { - hole64_start =3D sgx_epc_above_4g_end(&pcms->sgx_epc); } else { - hole64_start =3D x86ms->above_4g_mem_start + x86ms->above_4g_mem_s= ize; + hole64_start =3D pc_above_4g_end(pcms); } =20 return ROUND_UP(hole64_start, 1 * GiB); --=20 2.17.2