Update the per VM ucall_header allocation from vm_vaddr_alloc() to
vm_vaddr_alloc_shared(). This allows encrypted guests to use ucall pools
by placing their shared ucall structures in unencrypted (shared) memory.
No behavior change for non encrypted guests.
Cc: Paolo Bonzini <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Vishal Annapurve <[email protected]>
Cc: Ackerly Tng <[email protected]>
cc: Andrew Jones <[email protected]>
Signed-off-by: Peter Gonda <[email protected]>
---
tools/testing/selftests/kvm/lib/ucall_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kvm/lib/ucall_common.c b/tools/testing/selftests/kvm/lib/ucall_common.c
index 2f0e2ea941cc..99ef4866a001 100644
--- a/tools/testing/selftests/kvm/lib/ucall_common.c
+++ b/tools/testing/selftests/kvm/lib/ucall_common.c
@@ -24,7 +24,7 @@ void ucall_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
vm_vaddr_t vaddr;
int i;
- vaddr = __vm_vaddr_alloc(vm, sizeof(*hdr), KVM_UTIL_MIN_VADDR, MEM_REGION_DATA);
+ vaddr = vm_vaddr_alloc_shared(vm, sizeof(*hdr), KVM_UTIL_MIN_VADDR);
hdr = (struct ucall_header *)addr_gva2hva(vm, vaddr);
memset(hdr, 0, sizeof(*hdr));
--
2.39.0.314.g84b9a713c41-goog