On Sat, Jul 20, 2019 at 11:28:47AM +1000, Alexey Kardashevskiy wrote: > Useful for the debugging purposes.
Am I correct in understanding this isn't actually necessary for the
rest of the series to work, just useful for debugging?
>
> Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
> ---
> include/hw/ppc/spapr.h | 1 +
> hw/ppc/spapr.c | 33 +++++++++++++++++++++++++++------
> 2 files changed, 28 insertions(+), 6 deletions(-)
>
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index 74e427b588fc..ff82bb8554e1 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -159,6 +159,7 @@ struct SpaprMachineState {
> void *fdt_blob;
> long kernel_size;
> bool kernel_le;
> + uint64_t kernel_addr;
> uint32_t initrd_base;
> long initrd_size;
> uint64_t rtc_offset; /* Now used only during incoming migration */
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index 7fad42350538..6d13d65d8996 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -1179,7 +1179,7 @@ static void spapr_dt_chosen(SpaprMachineState *spapr,
> void *fdt)
> spapr->initrd_base + spapr->initrd_size));
>
> if (spapr->kernel_size) {
> - uint64_t kprop[2] = { cpu_to_be64(KERNEL_LOAD_ADDR),
> + uint64_t kprop[2] = { cpu_to_be64(spapr->kernel_addr),
> cpu_to_be64(spapr->kernel_size) };
>
> _FDT(fdt_setprop(fdt, chosen, "qemu,boot-kernel",
> @@ -1365,7 +1365,7 @@ static void *spapr_build_fdt(SpaprMachineState *spapr)
>
> /* Build memory reserve map */
> if (spapr->kernel_size) {
> - _FDT((fdt_add_mem_rsv(fdt, KERNEL_LOAD_ADDR, spapr->kernel_size)));
> + _FDT((fdt_add_mem_rsv(fdt, spapr->kernel_addr, spapr->kernel_size)));
> }
> if (spapr->initrd_size) {
> _FDT((fdt_add_mem_rsv(fdt, spapr->initrd_base, spapr->initrd_size)));
> @@ -1391,7 +1391,8 @@ static void *spapr_build_fdt(SpaprMachineState *spapr)
>
> static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
> {
> - return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
> + SpaprMachineState *spapr = opaque;
> + return (addr & 0x0fffffff) + spapr->kernel_addr;
> }
>
> static void emulate_spapr_hypercall(PPCVirtualHypervisor *vhyp,
> @@ -2995,12 +2996,12 @@ static void spapr_machine_init(MachineState *machine)
> uint64_t lowaddr = 0;
>
> spapr->kernel_size = load_elf(kernel_filename, NULL,
> - translate_kernel_address, NULL,
> + translate_kernel_address, spapr,
> NULL, &lowaddr, NULL, 1,
> PPC_ELF_MACHINE, 0, 0);
> if (spapr->kernel_size == ELF_LOAD_WRONG_ENDIAN) {
> spapr->kernel_size = load_elf(kernel_filename, NULL,
> - translate_kernel_address, NULL,
> NULL,
> + translate_kernel_address, spapr,
> NULL,
> &lowaddr, NULL, 0, PPC_ELF_MACHINE,
> 0, 0);
> spapr->kernel_le = spapr->kernel_size > 0;
> @@ -3016,7 +3017,7 @@ static void spapr_machine_init(MachineState *machine)
> /* Try to locate the initrd in the gap between the kernel
> * and the firmware. Add a bit of space just in case
> */
> - spapr->initrd_base = (KERNEL_LOAD_ADDR + spapr->kernel_size
> + spapr->initrd_base = (spapr->kernel_addr + spapr->kernel_size
> + 0x1ffff) & ~0xffff;
> spapr->initrd_size = load_image_targphys(initrd_filename,
> spapr->initrd_base,
> @@ -3253,6 +3254,18 @@ static void spapr_set_vsmt(Object *obj, Visitor *v,
> const char *name,
> visit_type_uint32(v, name, (uint32_t *)opaque, errp);
> }
>
> +static void spapr_get_kernel_addr(Object *obj, Visitor *v, const char *name,
> + void *opaque, Error **errp)
> +{
> + visit_type_uint64(v, name, (uint64_t *)opaque, errp);
> +}
> +
> +static void spapr_set_kernel_addr(Object *obj, Visitor *v, const char *name,
> + void *opaque, Error **errp)
> +{
> + visit_type_uint64(v, name, (uint64_t *)opaque, errp);
> +}
> +
> static char *spapr_get_ic_mode(Object *obj, Error **errp)
> {
> SpaprMachineState *spapr = SPAPR_MACHINE(obj);
> @@ -3358,6 +3371,14 @@ static void spapr_instance_init(Object *obj)
> object_property_add_bool(obj, "vfio-no-msix-emulation",
> spapr_get_msix_emulation, NULL, NULL);
>
> + object_property_add(obj, "kernel-addr", "uint64", spapr_get_kernel_addr,
> + spapr_set_kernel_addr, NULL, &spapr->kernel_addr,
> + &error_abort);
> + object_property_set_description(obj, "kernel-addr",
> + stringify(KERNEL_LOAD_ADDR)
> + " for -kernel is the default",
> + NULL);
> + spapr->kernel_addr = KERNEL_LOAD_ADDR;
> /* The machine class defines the default interrupt controller mode */
> spapr->irq = smc->irq;
> object_property_add_str(obj, "ic-mode", spapr_get_ic_mode,
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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