diff --git a/arch/x86/include/asm/shared/tdx.h b/arch/x86/include/asm/shared/tdx.h
index a4036149c4847..fdfd41511b021 100644
--- a/arch/x86/include/asm/shared/tdx.h
+++ b/arch/x86/include/asm/shared/tdx.h
@@ -59,6 +59,7 @@
 #define TDX_PS_4K	0
 #define TDX_PS_2M	1
 #define TDX_PS_1G	2
+#define TDX_PS_NR	(TDX_PS_1G + 1)
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/x86/virt/vmx/tdx/tdx.c b/arch/x86/virt/vmx/tdx/tdx.c
index 6a3585bc8aa48..e76ad7c2e53b2 100644
--- a/arch/x86/virt/vmx/tdx/tdx.c
+++ b/arch/x86/virt/vmx/tdx/tdx.c
@@ -237,8 +237,85 @@ static int build_tdx_memlist(struct list_head *tmb_list)
 	return ret;
 }
 
+static int read_sys_metadata_field(u64 field_id, u64 *data)
+{
+	struct tdx_module_args args = {};
+	int ret;
+
+	/*
+	 * TDH.SYS.RD -- reads one global metadata field
+	 *  - RDX (in): the field to read
+	 *  - R8 (out): the field data
+	 */
+	args.rdx = field_id;
+	ret = seamcall_prerr_ret(TDH_SYS_RD, &args);
+	if (ret)
+		return ret;
+
+	*data = args.r8;
+
+	return 0;
+}
+
+static int read_sys_metadata_field16(u64 field_id,
+				     int offset,
+				     struct tdx_tdmr_sysinfo *ts)
+{
+	u16 *ts_member = ((void *)ts) + offset;
+	u64 tmp;
+	int ret;
+
+	if (WARN_ON_ONCE(MD_FIELD_ID_ELE_SIZE_CODE(field_id) !=
+			MD_FIELD_ID_ELE_SIZE_16BIT))
+		return -EINVAL;
+
+	ret = read_sys_metadata_field(field_id, &tmp);
+	if (ret)
+		return ret;
+
+	*ts_member = tmp;
+
+	return 0;
+}
+
+struct field_mapping {
+	u64 field_id;
+	int offset;
+};
+
+#define TD_SYSINFO_MAP(_field_id, _offset) \
+	{ .field_id = MD_FIELD_ID_##_field_id,	   \
+	  .offset   = offsetof(struct tdx_tdmr_sysinfo, _offset) }
+
+/* Map TD_SYSINFO fields into 'struct tdx_tdmr_sysinfo': */
+static const struct field_mapping fields[] = {
+	TD_SYSINFO_MAP(MAX_TDMRS,	      max_tdmrs),
+	TD_SYSINFO_MAP(MAX_RESERVED_PER_TDMR, max_reserved_per_tdmr),
+	TD_SYSINFO_MAP(PAMT_4K_ENTRY_SIZE,    pamt_entry_size[TDX_PS_4K]),
+	TD_SYSINFO_MAP(PAMT_2M_ENTRY_SIZE,    pamt_entry_size[TDX_PS_2M]),
+	TD_SYSINFO_MAP(PAMT_1G_ENTRY_SIZE,    pamt_entry_size[TDX_PS_1G]),
+};
+
+static int get_tdx_tdmr_sysinfo(struct tdx_tdmr_sysinfo *tdmr_sysinfo)
+{
+	int ret;
+	int i;
+
+	/* Populate 'tdmr_sysinfo' fields using the mapping structure above: */
+	for (i = 0; i < ARRAY_SIZE(fields); i++) {
+		ret = read_sys_metadata_field16(fields[i].field_id,
+						fields[i].offset,
+						tdmr_sysinfo);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 static int init_tdx_module(void)
 {
+	struct tdx_tdmr_sysinfo tdmr_sysinfo;
 	int ret;
 
 	/*
@@ -257,10 +334,13 @@ static int init_tdx_module(void)
 	if (ret)
 		goto out_put_tdxmem;
 
+	ret = get_tdx_tdmr_sysinfo(&tdmr_sysinfo);
+	if (ret)
+		goto err_free_tdxmem;
+
 	/*
 	 * TODO:
 	 *
-	 *  - Get TDX module "TD Memory Region" (TDMR) global metadata.
 	 *  - Construct a list of TDMRs to cover all TDX-usable memory
 	 *    regions.
 	 *  - Configure the TDMRs and the global KeyID to the TDX module.
@@ -270,6 +350,8 @@ static int init_tdx_module(void)
 	 *  Return error before all steps are done.
 	 */
 	ret = -EINVAL;
+	if (ret)
+		goto err_free_tdxmem;
 out_put_tdxmem:
 	/*
 	 * @tdx_memlist is written here and read at memory hotplug time.
@@ -277,6 +359,10 @@ static int init_tdx_module(void)
 	 */
 	put_online_mems();
 	return ret;
+
+err_free_tdxmem:
+	free_tdx_memlist(&tdx_memlist);
+	goto out_put_tdxmem;
 }
 
 static int __tdx_enable(void)
diff --git a/arch/x86/virt/vmx/tdx/tdx.h b/arch/x86/virt/vmx/tdx/tdx.h
index c11e0a7ca664b..29cdf5ea5544a 100644
--- a/arch/x86/virt/vmx/tdx/tdx.h
+++ b/arch/x86/virt/vmx/tdx/tdx.h
@@ -2,6 +2,8 @@
 #ifndef _X86_VIRT_TDX_H
 #define _X86_VIRT_TDX_H
 
+#include <linux/bits.h>
+
 /*
  * This file contains both macros and data structures defined by the TDX
  * architecture and Linux defined software data structures and functions.
@@ -13,8 +15,38 @@
  * TDX module SEAMCALL leaf functions
  */
 #define TDH_SYS_INIT		33
+#define TDH_SYS_RD		34
 #define TDH_SYS_LP_INIT		35
 
+/*
+ * Global scope metadata field ID.
+ *
+ * See Table "Global Scope Metadata", TDX module 1.5 ABI spec.
+ */
+#define MD_FIELD_ID_MAX_TDMRS			0x9100000100000008ULL
+#define MD_FIELD_ID_MAX_RESERVED_PER_TDMR	0x9100000100000009ULL
+#define MD_FIELD_ID_PAMT_4K_ENTRY_SIZE		0x9100000100000010ULL
+#define MD_FIELD_ID_PAMT_2M_ENTRY_SIZE		0x9100000100000011ULL
+#define MD_FIELD_ID_PAMT_1G_ENTRY_SIZE		0x9100000100000012ULL
+
+/*
+ * Sub-field definition of metadata field ID.
+ *
+ * See Table "MD_FIELD_ID (Metadata Field Identifier / Sequence Header)
+ * Definition", TDX module 1.5 ABI spec.
+ *
+ *  - Bit 33:32: ELEMENT_SIZE_CODE -- size of a single element of metadata
+ *
+ *	0: 8 bits
+ *	1: 16 bits
+ *	2: 32 bits
+ *	3: 64 bits
+ */
+#define MD_FIELD_ID_ELE_SIZE_CODE(_field_id)	\
+		(((_field_id) & GENMASK_ULL(33, 32)) >> 32)
+
+#define MD_FIELD_ID_ELE_SIZE_16BIT	1
+
 /*
  * Do not put any hardware-defined TDX structure representations below
  * this comment!
@@ -33,4 +65,11 @@ struct tdx_memblock {
 	unsigned long end_pfn;
 };
 
+/* "TDMR info" part of "Global Scope Metadata" for constructing TDMRs */
+struct tdx_tdmr_sysinfo {
+	u16 max_tdmrs;
+	u16 max_reserved_per_tdmr;
+	u16 pamt_entry_size[TDX_PS_NR];
+};
+
 #endif