limine: Add SMBIOS request
diff --git a/common/limine.h b/common/limine.h
index 98f8aeb3..3be01c45 100644
--- a/common/limine.h
+++ b/common/limine.h
@@ -184,4 +184,21 @@ struct limine_rsdp_request {
LIMINE_PTR(struct limine_rsdp_response *) response;
};
+// SMBIOS
+
+#define LIMINE_SMBIOS_REQUEST { LIMINE_COMMON_MAGIC, 0x9e9046f11e095391, 0xaa4a520fefbde5ee }
+
+struct limine_smbios_response {
+ uint64_t flags;
+
+ LIMINE_PTR(void *) entry_32;
+ LIMINE_PTR(void *) entry_64;
+};
+
+struct limine_smbios_request {
+ uint64_t id[4];
+ uint64_t flags;
+ LIMINE_PTR(struct limine_smbios_response *) response;
+};
+
#endif
diff --git a/common/protos/limine.c b/common/protos/limine.c
index a6a28b3d..560ea1cd 100644
--- a/common/protos/limine.c
+++ b/common/protos/limine.c
@@ -256,6 +256,29 @@ FEAT_START
rsdp_request->response = reported_addr(rsdp_response);
FEAT_END
+ // SMBIOS feature
+FEAT_START
+ struct limine_smbios_request *smbios_request = get_request(LIMINE_SMBIOS_REQUEST);
+ if (smbios_request == NULL) {
+ break; // next feature
+ }
+
+ struct limine_smbios_response *smbios_response =
+ ext_mem_alloc(sizeof(struct limine_smbios_response));
+
+ void *smbios_entry_32 = NULL, *smbios_entry_64 = NULL;
+ acpi_get_smbios(&smbios_entry_32, &smbios_entry_64);
+
+ if (smbios_entry_32) {
+ smbios_response->entry_32 = reported_addr(smbios_entry_32);
+ }
+ if (smbios_entry_64) {
+ smbios_response->entry_64 = reported_addr(smbios_entry_64);
+ }
+
+ smbios_request->response = reported_addr(smbios_response);
+FEAT_END
+
// Modules
FEAT_START
struct limine_module_request *module_request = get_request(LIMINE_MODULE_REQUEST);
diff --git a/test/limine.c b/test/limine.c
index b397b7dc..fe23842b 100644
--- a/test/limine.c
+++ b/test/limine.c
@@ -43,6 +43,12 @@ static struct limine_rsdp_request rsdp_request = {
.flags = 0, .response = NULL
};
+__attribute__((used))
+static struct limine_smbios_request smbios_request = {
+ .id = LIMINE_SMBIOS_REQUEST,
+ .flags = 0, .response = NULL
+};
+
static char *get_memmap_type(uint64_t type) {
switch (type) {
case LIMINE_MEMMAP_USABLE:
@@ -167,5 +173,15 @@ FEAT_START
e9_printf("RSDP at: %x", rsdp_response->address);
FEAT_END
+FEAT_START
+ if (smbios_request.response == NULL) {
+ e9_printf("SMBIOS not passed");
+ break;
+ }
+ struct limine_smbios_response *smbios_response = smbios_request.response;
+ e9_printf("SMBIOS 32-bit entry at: %x", smbios_response->entry_32);
+ e9_printf("SMBIOS 64-bit entry at: %x", smbios_response->entry_64);
+FEAT_END
+
for (;;);
}
