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hw/riscv/boot.c: make riscv_load_initrd() static

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The only remaining caller is riscv_load_kernel_and_initrd() which
belongs to the same file.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230206140022.2748401-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Daniel Henrique Barboza 2023-02-06 11:00:22 -03:00 committed by Palmer Dabbelt
parent 487d73fc47
commit 8b64475bd5
No known key found for this signature in database
GPG Key ID: 2E1319F35FBB1889
2 changed files with 40 additions and 41 deletions
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80
hw/riscv/boot.c
View File

@ -173,6 +173,46 @@ target_ulong riscv_load_firmware(const char *firmware_filename,
exit(1);
}
static void riscv_load_initrd(MachineState *machine, uint64_t kernel_entry)
{
const char *filename = machine->initrd_filename;
uint64_t mem_size = machine->ram_size;
void *fdt = machine->fdt;
hwaddr start, end;
ssize_t size;
g_assert(filename != NULL);
/*
* We want to put the initrd far enough into RAM that when the
* kernel is uncompressed it will not clobber the initrd. However
* on boards without much RAM we must ensure that we still leave
* enough room for a decent sized initrd, and on boards with large
* amounts of RAM we must avoid the initrd being so far up in RAM
* that it is outside lowmem and inaccessible to the kernel.
* So for boards with less than 256MB of RAM we put the initrd
* halfway into RAM, and for boards with 256MB of RAM or more we put
* the initrd at 128MB.
*/
start = kernel_entry + MIN(mem_size / 2, 128 * MiB);
size = load_ramdisk(filename, start, mem_size - start);
if (size == -1) {
size = load_image_targphys(filename, start, mem_size - start);
if (size == -1) {
error_report("could not load ramdisk '%s'", filename);
exit(1);
}
}
/* Some RISC-V machines (e.g. opentitan) don't have a fdt. */
if (fdt) {
end = start + size;
qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start", start);
qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end", end);
}
}
target_ulong riscv_load_kernel(MachineState *machine,
RISCVHartArrayState *harts,
target_ulong kernel_start_addr,
@ -234,46 +274,6 @@ out:
return kernel_entry;
}
void riscv_load_initrd(MachineState *machine, uint64_t kernel_entry)
{
const char *filename = machine->initrd_filename;
uint64_t mem_size = machine->ram_size;
void *fdt = machine->fdt;
hwaddr start, end;
ssize_t size;
g_assert(filename != NULL);
/*
* We want to put the initrd far enough into RAM that when the
* kernel is uncompressed it will not clobber the initrd. However
* on boards without much RAM we must ensure that we still leave
* enough room for a decent sized initrd, and on boards with large
* amounts of RAM we must avoid the initrd being so far up in RAM
* that it is outside lowmem and inaccessible to the kernel.
* So for boards with less than 256MB of RAM we put the initrd
* halfway into RAM, and for boards with 256MB of RAM or more we put
* the initrd at 128MB.
*/
start = kernel_entry + MIN(mem_size / 2, 128 * MiB);
size = load_ramdisk(filename, start, mem_size - start);
if (size == -1) {
size = load_image_targphys(filename, start, mem_size - start);
if (size == -1) {
error_report("could not load ramdisk '%s'", filename);
exit(1);
}
}
/* Some RISC-V machines (e.g. opentitan) don't have a fdt. */
if (fdt) {
end = start + size;
qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start", start);
qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end", end);
}
}
/*
* This function makes an assumption that the DRAM interval
* 'dram_base' + 'dram_size' is contiguous.

1
include/hw/riscv/boot.h
View File

@ -48,7 +48,6 @@ target_ulong riscv_load_kernel(MachineState *machine,
target_ulong firmware_end_addr,
bool load_initrd,
symbol_fn_t sym_cb);
void riscv_load_initrd(MachineState *machine, uint64_t kernel_entry);
uint64_t riscv_compute_fdt_addr(hwaddr dram_start, uint64_t dram_size,
MachineState *ms);
void riscv_load_fdt(hwaddr fdt_addr, void *fdt);