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kvm: consistently return 0/-errno from kvm_convert_memory

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In case of incorrect parameters, kvm_convert_memory() was returning
-1 instead of -EINVAL.  The guest won't notice because it will move
anyway to RUN_STATE_INTERNAL_ERROR, but fix this for consistency and
clarity.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2024-12-12 16:55:51 +01:00
parent e05fbacd20
commit b8f8c10f85
1 changed files with 4 additions and 4 deletions
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8
accel/kvm/kvm-all.c
View file

@ -2999,17 +2999,17 @@ int kvm_convert_memory(hwaddr start, hwaddr size, bool to_private)
MemoryRegion *mr; MemoryRegion *mr;
RAMBlock *rb; RAMBlock *rb;
void *addr; void *addr;
int ret = -1; int ret = -EINVAL;
trace_kvm_convert_memory(start, size, to_private ? "shared_to_private" : "private_to_shared"); trace_kvm_convert_memory(start, size, to_private ? "shared_to_private" : "private_to_shared");
if (!QEMU_PTR_IS_ALIGNED(start, qemu_real_host_page_size()) || if (!QEMU_PTR_IS_ALIGNED(start, qemu_real_host_page_size()) ||
!QEMU_PTR_IS_ALIGNED(size, qemu_real_host_page_size())) { !QEMU_PTR_IS_ALIGNED(size, qemu_real_host_page_size())) {
return -1; return ret;
} }
if (!size) { if (!size) {
return -1; return ret;
} }
section = memory_region_find(get_system_memory(), start, size); section = memory_region_find(get_system_memory(), start, size);
@ -3027,7 +3027,7 @@ int kvm_convert_memory(hwaddr start, hwaddr size, bool to_private)
if (!to_private) { if (!to_private) {
return 0; return 0;
} }
return -1; return ret;
} }
if (!memory_region_has_guest_memfd(mr)) { if (!memory_region_has_guest_memfd(mr)) {