qemu-kvm/kvm-Implement-base-of-SMBIOS-type-9-descriptor.patch

From 84fc607d678bd72397a41d706e91fa241fd97266 Mon Sep 17 00:00:00 2001
From: Igor Mammedov <imammedo@redhat.com>
Date: Wed, 21 Feb 2024 17:00:26 +0000
Subject: [PATCH 04/20] Implement base of SMBIOS type 9 descriptor.

RH-Author: Igor Mammedov <imammedo@redhat.com>
RH-MergeRequest: 230: Workaround Windows failing to find 64bit SMBIOS entry point with SeaBIOS
RH-Jira: RHEL-21705
RH-Acked-by: MST <mst@redhat.com>
RH-Acked-by: Ani Sinha <None>
RH-Commit: [2/18] 2678cc080bfbf3357fa2f94ceaf42fc61b690d32

JIRA: https://issues.redhat.com/browse/RHEL-21705

commit: 735eee07d1f963635d3c3bf9f5e4bf1bc000870e
Author: Felix Wu <flwu@google.com>

    Version 2.1+.

    Signed-off-by: Felix Wu <flwu@google.com>
    Signed-off-by: Nabih Estefan <nabihestefan@google.com>
    Message-Id: <20240221170027.1027325-2-nabihestefan@google.com>
    Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
    Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/smbios/smbios.c           | 99 ++++++++++++++++++++++++++++++++++++
 include/hw/firmware/smbios.h | 13 +++++
 qemu-options.hx              |  3 ++
 3 files changed, 115 insertions(+)

diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
index 7bde23e59d..4f5637d445 100644
--- a/hw/smbios/smbios.c
+++ b/hw/smbios/smbios.c
@@ -122,6 +122,16 @@ struct type8_instance {
 };
 static QTAILQ_HEAD(, type8_instance) type8 = QTAILQ_HEAD_INITIALIZER(type8);
 
+/* type 9 instance for parsing */
+struct type9_instance {
+    const char *slot_designation;
+    uint8_t slot_type, slot_data_bus_width, current_usage, slot_length,
+            slot_characteristics1, slot_characteristics2;
+    uint16_t slot_id;
+    QTAILQ_ENTRY(type9_instance) next;
+};
+static QTAILQ_HEAD(, type9_instance) type9 = QTAILQ_HEAD_INITIALIZER(type9);
+
 static struct {
     size_t nvalues;
     char **values;
@@ -371,6 +381,54 @@ static const QemuOptDesc qemu_smbios_type8_opts[] = {
     },
 };
 
+static const QemuOptDesc qemu_smbios_type9_opts[] = {
+    {
+        .name = "type",
+        .type = QEMU_OPT_NUMBER,
+        .help = "SMBIOS element type",
+    },
+    {
+        .name = "slot_designation",
+        .type = QEMU_OPT_STRING,
+        .help = "string number for reference designation",
+    },
+    {
+        .name = "slot_type",
+        .type = QEMU_OPT_NUMBER,
+        .help = "connector type",
+    },
+    {
+        .name = "slot_data_bus_width",
+        .type = QEMU_OPT_NUMBER,
+        .help = "port type",
+    },
+    {
+        .name = "current_usage",
+        .type = QEMU_OPT_NUMBER,
+        .help = "current usage",
+    },
+    {
+        .name = "slot_length",
+        .type = QEMU_OPT_NUMBER,
+        .help = "system slot length",
+    },
+    {
+        .name = "slot_id",
+        .type = QEMU_OPT_NUMBER,
+        .help = "system slot id",
+    },
+    {
+        .name = "slot_characteristics1",
+        .type = QEMU_OPT_NUMBER,
+        .help = "slot characteristics1, see the spec",
+    },
+    {
+        .name = "slot_characteristics2",
+        .type = QEMU_OPT_NUMBER,
+        .help = "slot characteristics2, see the spec",
+    },
+};
+
 static const QemuOptDesc qemu_smbios_type11_opts[] = {
     {
         .name = "value",
@@ -594,6 +652,7 @@ bool smbios_skip_table(uint8_t type, bool required_table)
 #define T2_BASE 0x200
 #define T3_BASE 0x300
 #define T4_BASE 0x400
+#define T9_BASE 0x900
 #define T11_BASE 0xe00
 
 #define T16_BASE 0x1000
@@ -792,6 +851,28 @@ static void smbios_build_type_8_table(void)
     }
 }
 
+static void smbios_build_type_9_table(void)
+{
+    unsigned instance = 0;
+    struct type9_instance *t9;
+
+    QTAILQ_FOREACH(t9, &type9, next) {
+        SMBIOS_BUILD_TABLE_PRE(9, T9_BASE + instance, true);
+
+        SMBIOS_TABLE_SET_STR(9, slot_designation, t9->slot_designation);
+        t->slot_type = t9->slot_type;
+        t->slot_data_bus_width = t9->slot_data_bus_width;
+        t->current_usage = t9->current_usage;
+        t->slot_length = t9->slot_length;
+        t->slot_id = t9->slot_id;
+        t->slot_characteristics1 = t9->slot_characteristics1;
+        t->slot_characteristics2 = t9->slot_characteristics2;
+
+        SMBIOS_BUILD_TABLE_POST;
+        instance++;
+    }
+}
+
 static void smbios_build_type_11_table(void)
 {
     char count_str[128];
@@ -1141,6 +1222,7 @@ void smbios_get_tables(MachineState *ms,
         }
 
         smbios_build_type_8_table();
+        smbios_build_type_9_table();
         smbios_build_type_11_table();
 
 #define MAX_DIMM_SZ (16 * GiB)
@@ -1472,6 +1554,23 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
             t8_i->port_type = qemu_opt_get_number(opts, "port_type", 0);
             QTAILQ_INSERT_TAIL(&type8, t8_i, next);
             return;
+        case 9: {
+            if (!qemu_opts_validate(opts, qemu_smbios_type9_opts, errp)) {
+                return;
+            }
+            struct type9_instance *t;
+            t = g_new0(struct type9_instance, 1);
+            save_opt(&t->slot_designation, opts, "slot_designation");
+            t->slot_type = qemu_opt_get_number(opts, "slot_type", 0);
+            t->slot_data_bus_width = qemu_opt_get_number(opts, "slot_data_bus_width", 0);
+            t->current_usage = qemu_opt_get_number(opts, "current_usage", 0);
+            t->slot_length = qemu_opt_get_number(opts, "slot_length", 0);
+            t->slot_id = qemu_opt_get_number(opts, "slot_id", 0);
+            t->slot_characteristics1 = qemu_opt_get_number(opts, "slot_characteristics1", 0);
+            t->slot_characteristics2 = qemu_opt_get_number(opts, "slot_characteristics2", 0);
+            QTAILQ_INSERT_TAIL(&type9, t, next);
+            return;
+        }
         case 11:
             if (!qemu_opts_validate(opts, qemu_smbios_type11_opts, errp)) {
                 return;
diff --git a/include/hw/firmware/smbios.h b/include/hw/firmware/smbios.h
index d24b3ccd32..6bbd5a4c20 100644
--- a/include/hw/firmware/smbios.h
+++ b/include/hw/firmware/smbios.h
@@ -211,6 +211,19 @@ struct smbios_type_8 {
     uint8_t port_type;
 } QEMU_PACKED;
 
+/* SMBIOS type 9 - System Slots (v2.1+) */
+struct smbios_type_9 {
+    struct smbios_structure_header header;
+    uint8_t slot_designation;
+    uint8_t slot_type;
+    uint8_t slot_data_bus_width;
+    uint8_t current_usage;
+    uint8_t slot_length;
+    uint16_t slot_id;
+    uint8_t slot_characteristics1;
+    uint8_t slot_characteristics2;
+} QEMU_PACKED;
+
 /* SMBIOS type 11 - OEM strings */
 struct smbios_type_11 {
     struct smbios_structure_header header;
diff --git a/qemu-options.hx b/qemu-options.hx
index 0814f43066..94cacc2c63 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2710,6 +2710,9 @@ SRST
 ``-smbios type=4[,sock_pfx=str][,manufacturer=str][,version=str][,serial=str][,asset=str][,part=str][,processor-id=%d]``
     Specify SMBIOS type 4 fields
 
+``-smbios type=9[,slot_designation=str][,slot_type=%d][,slot_data_bus_width=%d][,current_usage=%d][,slot_length=%d][,slot_id=%d][,slot_characteristics1=%d][,slot_characteristics12=%d]``
+    Specify SMBIOS type 9 fields
+
 ``-smbios type=11[,value=str][,path=filename]``
     Specify SMBIOS type 11 fields
 
-- 
2.39.3