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Sat, 2 Oct 2021 14:45:57 -0400 (EDT) From: Jiaxun Yang To: qemu-devel@nongnu.org Subject: [PATCH v3 2/3] hw/mips/boston: Allow loading elf kernel and dtb Date: Sat, 2 Oct 2021 19:45:38 +0100 Message-Id: <20211002184539.169-3-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211002184539.169-1-jiaxun.yang@flygoat.com> References: <20211002184539.169-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=66.111.4.27; envelope-from=jiaxun.yang@flygoat.com; helo=out3-smtp.messagingengine.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, 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_PASS=-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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: aleksandar.rikalo@syrmia.com, f4bug@amsat.org, paulburton@kernel.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" ELF kernel allows us debugging much easier with DWARF symbols. Signed-off-by: Jiaxun Yang Reviewed-by: Philippe Mathieu-Daudé -- v2: Use g_autofree v3: Remove unused kernel_low and uint64_t cast (BALATON) --- hw/mips/boston.c | 35 +++++++++++++++++++++++++++++++---- 1 file changed, 31 insertions(+), 4 deletions(-) diff --git a/hw/mips/boston.c b/hw/mips/boston.c index 5c720440fb..e6d5cc2d22 100644 --- a/hw/mips/boston.c +++ b/hw/mips/boston.c @@ -20,6 +20,7 @@ #include "qemu/osdep.h" #include "qemu/units.h" +#include "elf.h" #include "hw/boards.h" #include "hw/char/serial.h" #include "hw/ide/pci.h" @@ -546,10 +547,36 @@ static void boston_mach_init(MachineState *machine) exit(1); } } else if (machine->kernel_filename) { - fit_err = load_fit(&boston_fit_loader, machine->kernel_filename, s); - if (fit_err) { - error_report("unable to load FIT image"); - exit(1); + uint64_t kernel_entry, kernel_high, kernel_size; + + kernel_size = load_elf(machine->kernel_filename, NULL, + cpu_mips_kseg0_to_phys, NULL, + &kernel_entry, NULL, &kernel_high, + NULL, 0, EM_MIPS, 1, 0); + + if (kernel_size) { + hwaddr dtb_paddr = QEMU_ALIGN_UP(kernel_high, 64 * KiB); + hwaddr dtb_vaddr = cpu_mips_phys_to_kseg0(NULL, dtb_paddr); + + s->kernel_entry = kernel_entry; + if (machine->dtb) { + int dt_size; + g_autofree const void *dtb_file_data, *dtb_load_data; + + dtb_file_data = load_device_tree(machine->dtb, &dt_size); + dtb_load_data = boston_fdt_filter(s, dtb_file_data, NULL, &dtb_vaddr); + + /* Calculate real fdt size after filter */ + dt_size = fdt_totalsize(dtb_load_data); + rom_add_blob_fixed("dtb", dtb_load_data, dt_size, dtb_paddr); + } + } else { + /* Try to load file as FIT */ + fit_err = load_fit(&boston_fit_loader, machine->kernel_filename, s); + if (fit_err) { + error_report("unable to load kernel image"); + exit(1); + } } gen_firmware(memory_region_get_ram_ptr(flash) + 0x7c00000, -- 2.30.2