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kvmtool: ARM: fix initrd functionality

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lkvm -i is currently broken on ARM/ARM64.
We should not try to convert smaller-than-4GB addresses into 64-bit
big endian and then stuff them into u32 variables if we expect to read
anything other than 0 out of it.
Adjust the type to u64 to write the proper address in BE format into
the /chosen node (and also match the address size we formely posted)
and let Linux thus read the right values.
This fixes initrd functionality for ARM and ARM64 guests.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Andre Przywara
2014-12-17 15:40:44 +00:00
committed by Will Deacon
parent dc7a55d6bf
commit bd33695d12
1 changed files with 2 additions and 2 deletions
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arm/fdt.c
+2 -2
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@@ -149,8 +149,8 @@ static int setup_fdt(struct kvm *kvm)
/* Initrd */
if (kvm->arch.initrd_size != 0) {
u32 ird_st_prop = cpu_to_fdt64(kvm->arch.initrd_guest_start);
u32 ird_end_prop = cpu_to_fdt64(kvm->arch.initrd_guest_start +
u64 ird_st_prop = cpu_to_fdt64(kvm->arch.initrd_guest_start);
u64 ird_end_prop = cpu_to_fdt64(kvm->arch.initrd_guest_start +
kvm->arch.initrd_size);
_FDT(fdt_property(fdt, "linux,initrd-start",