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virDomainMemoryDefCheckConflict: Validate dimm slot too

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Since we're iterating over def->mems array, might as well check
for dimm slot duplicates.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Michal Privoznik 2023-11-02 16:35:00 +01:00
parent 3c2cb7d7b3
commit b475dbecb9
1 changed files with 24 additions and 14 deletions
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38
src/conf/domain_validate.c
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@ -2221,6 +2221,7 @@ static int
virDomainMemoryDefCheckConflict(const virDomainMemoryDef *mem,
const virDomainDef *def)
{
const virDomainDeviceDimmAddress *thisAddr = NULL;
unsigned long long thisStart = 0;
unsigned long long thisEnd = 0;
size_t i;
@ -2235,6 +2236,7 @@ virDomainMemoryDefCheckConflict(const virDomainMemoryDef *mem,
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
if (mem->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM) {
thisAddr = &mem->info.addr.dimm;
thisStart = mem->info.addr.dimm.base;
}
break;
@ -2244,7 +2246,7 @@ virDomainMemoryDefCheckConflict(const virDomainMemoryDef *mem,
break;
}
if (thisStart == 0) {
if (thisStart == 0 && !thisAddr) {
return 0;
}
@ -2258,19 +2260,27 @@ virDomainMemoryDefCheckConflict(const virDomainMemoryDef *mem,
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 (thisAddr && other->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM &&
thisAddr->slot == other->info.addr.dimm.slot) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("memory device slot '%1$u' is already being used by another memory device"),
thisAddr->slot);
return -1;
} else if (!thisAddr) {
/* 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;
if (mem->info.alias &&
STREQ_NULLABLE(other->info.alias,
mem->info.alias)) {
continue;
}
}
switch (other->model) {
@ -2294,7 +2304,7 @@ virDomainMemoryDefCheckConflict(const virDomainMemoryDef *mem,
break;
}
if (otherStart == 0)
if (thisStart == 0 || otherStart == 0)
continue;
if (thisStart <= otherStart && thisEnd > otherStart) {