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F . Beebe" , Bruno Haible Subject: [PATCH v3 1/9] hw/hppa/machine: Allow up to 3840 MB total memory Date: Fri, 12 Jan 2024 11:29:19 +0100 Message-ID: <20240112102927.35406-2-deller@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240112102927.35406-1-deller@kernel.org> References: <20240112102927.35406-1-deller@kernel.org> 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=139.178.84.217; envelope-from=deller@kernel.org; helo=dfw.source.kernel.org X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.467, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @kernel.org) X-ZM-MESSAGEID: 1705055442421100006 Content-Type: text/plain; charset="utf-8" From: Helge Deller The physical hardware allows DIMMs of 4 MB size and above, allowing up to 3840 MB of memory, but is restricted by setup code to 3 GB. Increase the limit to allow up to the maximum amount of memory. Btw. the memory area from 0xf000.0000 to 0xffff.ffff is reserved by the architecture for firmware and I/O memory and can not be used for standard memory. An upcoming 64-bit SeaBIOS-hppa firmware will allow more than 3.75GB on 64-bit HPPA64. In this case the ram_max for the pa20 case will change. Signed-off-by: Helge Deller Noticed-by: Nelson H. F. Beebe Fixes: b7746b1194c8 ("hw/hppa/machine: Restrict the total memory size to 3G= B") Reviewed-by: Richard Henderson Tested-by: Bruno Haible --- hw/hppa/machine.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c index c8da7c18d5..b11907617e 100644 --- a/hw/hppa/machine.c +++ b/hw/hppa/machine.c @@ -276,6 +276,7 @@ static TranslateFn *machine_HP_common_init_cpus(Machine= State *machine) unsigned int smp_cpus =3D machine->smp.cpus; TranslateFn *translate; MemoryRegion *cpu_region; + uint64_t ram_max; =20 /* Create CPUs. */ for (unsigned int i =3D 0; i < smp_cpus; i++) { @@ -288,8 +289,10 @@ static TranslateFn *machine_HP_common_init_cpus(Machin= eState *machine) */ if (hppa_is_pa20(&cpu[0]->env)) { translate =3D translate_pa20; + ram_max =3D 0xf0000000; /* 3.75 GB (limited by 32-bit firmwar= e) */ } else { translate =3D translate_pa10; + ram_max =3D 0xf0000000; /* 3.75 GB (32-bit CPU) */ } =20 for (unsigned int i =3D 0; i < smp_cpus; i++) { @@ -311,9 +314,9 @@ static TranslateFn *machine_HP_common_init_cpus(Machine= State *machine) cpu_region); =20 /* Main memory region. */ - if (machine->ram_size > 3 * GiB) { - error_report("RAM size is currently restricted to 3GB"); - exit(EXIT_FAILURE); + if (machine->ram_size > ram_max) { + info_report("Max RAM size limited to %" PRIu64 " MB", ram_max / Mi= B); + machine->ram_size =3D ram_max; } memory_region_add_subregion_overlap(addr_space, 0, machine->ram, -1); =20 --=20 2.43.0