Re: [RFC PATCH v3 2/6] qemu_capabilities: Added logic for retrieving eBPF objects from QEMU.

eBPF objects stored in the hash table during runtime. eBPF objects cached encoded in base64 in the .xml cache file. Signed-off-by: Andrew Melnychenko <andrew(a)daynix.com&gt; --- src/qemu/qemu_capabilities.c | 122 +++++++++++++++++++++++++++++++++++ src/qemu/qemu_capabilities.h | 3 + 2 files changed, 125 insertions(+)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 45525db803..09bb6ca36e 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -799,6 +799,9 @@ struct _virQEMUCaps { virQEMUCapsAccel kvm; virQEMUCapsAccel hvf; virQEMUCapsAccel tcg; + + /* Hash of ebpf objects encoded in base64 */ + GHashTable *ebpfObjects; }; struct virQEMUCapsSearchData { @@ -846,6 +849,13 @@ const char *virQEMUCapsArchToString(virArch arch) } +const char * +virQEMUCapsGetEbpf(virQEMUCaps *qemuCaps, const char *id) +{ + return virHashLookup(qemuCaps->ebpfObjects, id); +} + + /* Checks whether a domain with @guest arch can run natively on @host. */ bool @@ -1823,6 +1833,8 @@ virQEMUCapsNew(void) qemuCaps->invalidation = true; qemuCaps->flags = virBitmapNew(QEMU_CAPS_LAST); + qemuCaps->ebpfObjects = virHashNew(g_free); + return qemuCaps; } @@ -1965,6 +1977,9 @@ virQEMUCaps *virQEMUCapsNewCopy(virQEMUCaps *qemuCaps) { g_autoptr(virQEMUCaps) ret = virQEMUCapsNewBinary(qemuCaps->binary); size_t i; + GHashTableIter iter; + const char *key; + const char *value; ret->invalidation = qemuCaps->invalidation; ret->kvmSupportsNesting = qemuCaps->kvmSupportsNesting; @@ -2003,6 +2018,12 @@ virQEMUCaps *virQEMUCapsNewCopy(virQEMUCaps *qemuCaps) ret->hypervCapabilities = g_memdup(qemuCaps->hypervCapabilities, sizeof(virDomainCapsFeatureHyperv)); + ret->ebpfObjects = virHashNew(g_free); + g_hash_table_iter_init(&iter, qemuCaps->ebpfObjects); + while (g_hash_table_iter_next(&iter, (gpointer *) &key, (gpointer *) &value)) { + g_hash_table_insert(ret->ebpfObjects, g_strdup(key), g_strdup(value)); + } +

return g_steal_pointer(&ret); }