At the end of virDomainMemoryDefValidate() there's a code that
checks whether two virtio-mem/virtio-pmem devices don't overlap.
Separate this code into its own function
(virDomainMemoryDefCheckConflict()).
Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
src/conf/domain_validate.c | 147 ++++++++++++++++++++++---------------
1 file changed, 86 insertions(+), 61 deletions(-)
diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c
index bc3d00f89c..b4ffef919a 100644
--- a/src/conf/domain_validate.c
+++ b/src/conf/domain_validate.c
@@ -2217,15 +2217,96 @@ virDomainHostdevDefValidate(const virDomainHostdevDef *hostdev)
}
+static int
+virDomainMemoryDefCheckConflict(const virDomainMemoryDef *mem,
+ const virDomainDef *def)
+{
+ unsigned long long thisStart = 0;
+ unsigned long long thisEnd = 0;
+ size_t i;
+
+ switch (mem->model) {
+ case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ thisStart = mem->target.virtio_pmem.address;
+ break;
+ case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ thisStart = mem->target.virtio_mem.address;
+ break;
+ case VIR_DOMAIN_MEMORY_MODEL_DIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ case VIR_DOMAIN_MEMORY_MODEL_NONE:
+ case VIR_DOMAIN_MEMORY_MODEL_LAST:
+ break;
+ }
+
+ if (thisStart == 0) {
+ return 0;
+ }
+
+ /* thisStart and thisEnd are in bytes, mem->size in kibibytes */
+ thisEnd = thisStart + mem->size * 1024;
+
+ for (i = 0; i < def->nmems; i++) {
+ const virDomainMemoryDef *other = def->mems[i];
+ unsigned long long otherStart = 0;
+
+ if (other == mem)
+ continue;
+
+ /* In case we're updating an existing memory device (e.g. virtio-mem),
+ * then pointers will be different. But addresses and aliases are the
+ * same. However, STREQ_NULLABLE() returns true if both strings are
+ * NULL which is not what we want. */
+ if (virDomainDeviceInfoAddressIsEqual(&other->info,
+ &mem->info)) {
+ continue;
+ }
+
+ if (mem->info.alias &&
+ STREQ_NULLABLE(other->info.alias,
+ mem->info.alias)) {
+ continue;
+ }
+
+ switch (other->model) {
+ case VIR_DOMAIN_MEMORY_MODEL_NONE:
+ case VIR_DOMAIN_MEMORY_MODEL_DIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ case VIR_DOMAIN_MEMORY_MODEL_LAST:
+ continue;
+ break;
+
+ case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ otherStart = other->target.virtio_pmem.address;
+ break;
+ case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ otherStart = other->target.virtio_mem.address;
+ break;
+ }
+
+ if (otherStart == 0)
+ continue;
+
+ if (thisStart <= otherStart && thisEnd > otherStart) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("memory device address [0x%1$llx:0x%2$llx] overlaps with other memory device (0x%3$llx)"),
+ thisStart, thisEnd, otherStart);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
static int
virDomainMemoryDefValidate(const virDomainMemoryDef *mem,
const virDomainDef *def)
{
const long pagesize = virGetSystemPageSize();
unsigned long long thpSize;
- unsigned long long thisStart = 0;
- unsigned long long thisEnd = 0;
- size_t i;
/* Guest NUMA nodes are continuous and indexed from zero. */
if (mem->targetNode != -1) {
@@ -2307,7 +2388,6 @@ virDomainMemoryDefValidate(const virDomainMemoryDef *mem,
pagesize);
return -1;
}
- thisStart = mem->target.virtio_pmem.address;
break;
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
@@ -2351,7 +2431,6 @@ virDomainMemoryDefValidate(const virDomainMemoryDef *mem,
_("memory device address must be aligned to blocksize"));
return -1;
}
- thisStart = mem->target.virtio_mem.address;
break;
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
@@ -2373,62 +2452,8 @@ virDomainMemoryDefValidate(const virDomainMemoryDef *mem,
return -1;
}
- if (thisStart == 0) {
- return 0;
- }
-
- /* thisStart and thisEnd are in bytes, mem->size in kibibytes */
- thisEnd = thisStart + mem->size * 1024;
-
- for (i = 0; i < def->nmems; i++) {
- const virDomainMemoryDef *other = def->mems[i];
- unsigned long long otherStart = 0;
-
- if (other == mem)
- continue;
-
- /* In case we're updating an existing memory device (e.g. virtio-mem),
- * then pointers will be different. But addresses and aliases are the
- * same. However, STREQ_NULLABLE() returns true if both strings are
- * NULL which is not what we want. */
- if (virDomainDeviceInfoAddressIsEqual(&other->info,
- &mem->info)) {
- continue;
- }
-
- if (mem->info.alias &&
- STREQ_NULLABLE(other->info.alias,
- mem->info.alias)) {
- continue;
- }
-
- switch (other->model) {
- case VIR_DOMAIN_MEMORY_MODEL_NONE:
- case VIR_DOMAIN_MEMORY_MODEL_DIMM:
- case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
- case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
- case VIR_DOMAIN_MEMORY_MODEL_LAST:
- continue;
- break;
-
- case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
- otherStart = other->target.virtio_pmem.address;
- break;
- case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
- otherStart = other->target.virtio_mem.address;
- break;
- }
-
- if (otherStart == 0)
- continue;
-
- if (thisStart <= otherStart && thisEnd > otherStart) {
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("memory device address [0x%1$llx:0x%2$llx] overlaps with other memory device (0x%3$llx)"),
- thisStart, thisEnd, otherStart);
- return -1;
- }
- }
+ if (virDomainMemoryDefCheckConflict(mem, def) < 0)
+ return -1;
return 0;
}
--
2.41.0
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