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| author | Vincent Donnefort <vdonnefort@google.com> | 2025-05-21 13:48:28 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2025-05-21 14:33:51 +0100 |
| commit | f28f1d02f4eaac05c2ad6bf7264a8696dc21d011 (patch) | |
| tree | c496de1c6ac1eee4139c5458eb483a943a891c73 /arch/arm64/kvm/pkvm.c | |
| parent | 4274385ebf090461b46b9bddb0f7c526182ba3c0 (diff) | |
| download | lwn-f28f1d02f4eaac05c2ad6bf7264a8696dc21d011.tar.gz lwn-f28f1d02f4eaac05c2ad6bf7264a8696dc21d011.zip | |
KVM: arm64: Add a range to __pkvm_host_unshare_guest()
In preparation for supporting stage-2 huge mappings for np-guest. Add a
nr_pages argument to the __pkvm_host_unshare_guest hypercall. This range
supports only two values: 1 or PMD_SIZE / PAGE_SIZE (that is 512 on a
4K-pages system).
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Link: https://lore.kernel.org/r/20250521124834.1070650-5-vdonnefort@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/pkvm.c')
| -rw-r--r-- | arch/arm64/kvm/pkvm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c index 987bc5fb18f9..0c5733be6bf4 100644 --- a/arch/arm64/kvm/pkvm.c +++ b/arch/arm64/kvm/pkvm.c @@ -390,7 +390,7 @@ int pkvm_pgtable_stage2_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size) lockdep_assert_held_write(&kvm->mmu_lock); for_each_mapping_in_range_safe(pgt, addr, addr + size, mapping) { - ret = kvm_call_hyp_nvhe(__pkvm_host_unshare_guest, handle, mapping->gfn); + ret = kvm_call_hyp_nvhe(__pkvm_host_unshare_guest, handle, mapping->gfn, 1); if (WARN_ON(ret)) break; rb_erase(&mapping->node, &pgt->pkvm_mappings); |