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KVM: selftests: arm64: Add support for VM_MODE_P36V48_{4K,64K}

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Some of the arm64 systems out there have an IPA space that is
positively tiny. Nonetheless, they make great KVM hosts.

Add support for 36bit IPA support with 4kB pages, which makes
some of the fruity machines happy. Whilst we're at it, add support
for 64kB pages as well, though these boxes have no support for it.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211227124809.1335409-6-maz@kernel.org
This commit is contained in:
Marc Zyngier
2021-12-27 12:48:08 +00:00
parent 2f41a61c54
commit e7f58a6bd2
4 changed files with 18 additions and 0 deletions
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4
tools/testing/selftests/kvm/lib/guest_modes.c
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@@ -37,6 +37,10 @@ void guest_modes_append_default(void)
if (ps4k)
vm_mode_default = VM_MODE_P40V48_4K;
}
if (limit >= 36) {
guest_mode_append(VM_MODE_P36V48_4K, ps4k, ps4k);
guest_mode_append(VM_MODE_P36V48_64K, ps64k, ps64k);
}
/*
* Pick the first supported IPA size if the default