diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 57222678bb3f..931ebaa474c8 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -5,6 +5,7 @@ obj-y			:= lpar.o hvCall.o nvram.o reconfig.o \
 			   of_helpers.o rtas-work-area.o papr-sysparm.o \
 			   papr-rtas-common.o papr-vpd.o papr-indices.o \
 			   papr-platform-dump.o papr-phy-attest.o \
+			   papr-hvpipe.o \
 			   setup.o iommu.o event_sources.o ras.o \
 			   firmware.o power.o dlpar.o mobility.o rng.o \
 			   pci.o pci_dlpar.o eeh_pseries.o msi.o \
diff --git a/arch/powerpc/platforms/pseries/papr-hvpipe.c b/arch/powerpc/platforms/pseries/papr-hvpipe.c
new file mode 100644
index 000000000000..aca905189cf2
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/papr-hvpipe.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#define pr_fmt(fmt) "papr-hvpipe: " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/anon_inodes.h>
+#include <linux/miscdevice.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/poll.h>
+#include <linux/of.h>
+#include <asm/machdep.h>
+#include <asm/rtas.h>
+#include <uapi/asm/papr-hvpipe.h>
+#include "pseries.h"
+#include "papr-hvpipe.h"
+
+static DEFINE_SPINLOCK(hvpipe_src_list_lock);
+static LIST_HEAD(hvpipe_src_list);
+
+/*
+ * New PowerPC FW provides support for partitions and various
+ * sources (Ex: remote hardware management console (HMC)) to
+ * exchange information through an inband hypervisor channel
+ * called HVPIPE. Only HMCs are supported right now and
+ * partitions can communicate with multiple HMCs and each
+ * source represented by source ID.
+ *
+ * FW introduces send HVPIPE and recv HVPIPE RTAS calls for
+ * partitions to send and receive payloads respectively.
+ *
+ * These RTAS functions have the following certain requirements
+ * / limitations:
+ * - One hvpipe per partition for all sources.
+ * - Assume the return status of send HVPIPE as delivered to source
+ * - Assume the return status of recv HVPIPE as ACK to source
+ * - Generates HVPIPE event message when the payload is ready
+ *   for the partition. The hypervisor will not deliver another
+ *   event until the partition read the previous payload which
+ *   means the pipe is blocked for any sources.
+ *
+ * Linux implementation:
+ * Follow the similar interfaces that the OS has for other RTAS calls.
+ * ex: /dev/papr-indices, /dev/papr-vpd, etc.
+ * - /dev/papr-hvpipe is available for the user space.
+ * - devfd = open("/dev/papr-hvpipe", ..)
+ * - fd = ioctl(fd,HVPIPE_IOC_CREATE_HANDLE,&srcID)-for each source
+ * - write(fd, buf, size) --> Issue send HVPIPE RTAS call and
+ *   returns size for success or the corresponding error for RTAS
+ *   return code for failure.
+ * - poll(fd,..) -> wakeup FD if the payload is available to read.
+ *   HVPIPE event message handler wakeup FD based on source ID in
+ *   the event message
+ * - read(fd, buf, size) --> Issue recv HVPIPE RTAS call and
+ *   returns size for success or the corresponding error for RTAS
+ *   return code for failure.
+ */
+
+static struct hvpipe_source_info *hvpipe_find_source(u32 srcID)
+{
+	struct hvpipe_source_info *src_info;
+
+	list_for_each_entry(src_info, &hvpipe_src_list, list)
+		if (src_info->srcID == srcID)
+			return src_info;
+
+	return NULL;
+}
+
+/*
+ * papr_hvpipe_handle_write -  Issue send HVPIPE RTAS and return
+ * the RTAS status to the user space
+ */
+static ssize_t papr_hvpipe_handle_write(struct file *file,
+	const char __user *buf, size_t size, loff_t *off)
+{
+	struct hvpipe_source_info *src_info = file->private_data;
+
+	if (!src_info)
+		return -EIO;
+
+	return 0;
+}
+
+/*
+ * papr_hvpipe_handle_read - If the payload for the specific
+ * source is pending in the hypervisor, issue recv HVPIPE RTAS
+ * and return the payload to the user space.
+ *
+ * When the payload is available for the partition, the
+ * hypervisor notifies HVPIPE event with the source ID
+ * and the event handler wakeup FD(s) that are waiting.
+ */
+static ssize_t papr_hvpipe_handle_read(struct file *file,
+		char __user *buf, size_t size, loff_t *off)
+{
+
+	struct hvpipe_source_info *src_info = file->private_data;
+
+	if (!src_info)
+		return -EIO;
+
+	return 0;
+}
+
+/*
+ * The user space waits for the payload to receive.
+ * The hypervisor sends HVPIPE event message to the partition
+ * when the payload is available. The event handler wakeup FD
+ * depends on the source ID in the message event.
+ */
+static __poll_t papr_hvpipe_handle_poll(struct file *filp,
+		struct poll_table_struct *wait)
+{
+	struct hvpipe_source_info *src_info = filp->private_data;
+
+	if (!src_info)
+		return POLLNVAL;
+
+	return 0;
+}
+
+static int papr_hvpipe_handle_release(struct inode *inode,
+				struct file *file)
+{
+	struct hvpipe_source_info *src_info;
+
+	/*
+	 * Hold the lock, remove source from src_list, reset the
+	 * hvpipe status and release the lock to prevent any race
+	 * with message event IRQ.
+	 */
+	spin_lock(&hvpipe_src_list_lock);
+	src_info = file->private_data;
+	list_del(&src_info->list);
+	file->private_data = NULL;
+	spin_unlock(&hvpipe_src_list_lock);
+	kfree(src_info);
+	return 0;
+}
+
+static const struct file_operations papr_hvpipe_handle_ops = {
+	.read		=	papr_hvpipe_handle_read,
+	.write		=	papr_hvpipe_handle_write,
+	.release	=	papr_hvpipe_handle_release,
+	.poll		=	papr_hvpipe_handle_poll,
+};
+
+static int papr_hvpipe_dev_create_handle(u32 srcID)
+{
+	struct hvpipe_source_info *src_info;
+	struct file *file;
+	long err;
+	int fd;
+
+	spin_lock(&hvpipe_src_list_lock);
+	/*
+	 * Do not allow more than one process communicates with
+	 * each source.
+	 */
+	src_info = hvpipe_find_source(srcID);
+	if (src_info) {
+		spin_unlock(&hvpipe_src_list_lock);
+		pr_err("pid(%d) is already using the source(%d)\n",
+				src_info->tsk->pid, srcID);
+		return -EALREADY;
+	}
+	spin_unlock(&hvpipe_src_list_lock);
+
+	src_info = kzalloc(sizeof(*src_info), GFP_KERNEL_ACCOUNT);
+	if (!src_info)
+		return -ENOMEM;
+
+	src_info->srcID = srcID;
+	src_info->tsk = current;
+	init_waitqueue_head(&src_info->recv_wqh);
+
+	fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
+	if (fd < 0) {
+		err = fd;
+		goto free_buf;
+	}
+
+	file = anon_inode_getfile("[papr-hvpipe]",
+			&papr_hvpipe_handle_ops, (void *)src_info,
+			O_RDWR);
+	if (IS_ERR(file)) {
+		err = PTR_ERR(file);
+		goto free_fd;
+	}
+
+	spin_lock(&hvpipe_src_list_lock);
+	/*
+	 * If two processes are executing ioctl() for the same
+	 * source ID concurrently, prevent the second process to
+	 * acquire FD.
+	 */
+	if (hvpipe_find_source(srcID)) {
+		spin_unlock(&hvpipe_src_list_lock);
+		err = -EALREADY;
+		goto free_file;
+	}
+	list_add(&src_info->list, &hvpipe_src_list);
+	spin_unlock(&hvpipe_src_list_lock);
+
+	fd_install(fd, file);
+	return fd;
+
+free_file:
+	fput(file);
+free_fd:
+	put_unused_fd(fd);
+free_buf:
+	kfree(src_info);
+	return err;
+}
+
+/*
+ * Top-level ioctl handler for /dev/papr_hvpipe
+ *
+ * Use separate FD for each source (exa :HMC). So ioctl is called
+ * with source ID which returns FD.
+ */
+static long papr_hvpipe_dev_ioctl(struct file *filp, unsigned int ioctl,
+		unsigned long arg)
+{
+	u32 __user *argp = (void __user *)arg;
+	u32 srcID;
+	long ret;
+
+	if (get_user(srcID, argp))
+		return -EFAULT;
+
+	/*
+	 * Support only HMC source right now
+	 */
+	if (!(srcID & HVPIPE_HMC_ID_MASK))
+		return -EINVAL;
+
+	switch (ioctl) {
+	case PAPR_HVPIPE_IOC_CREATE_HANDLE:
+		ret = papr_hvpipe_dev_create_handle(srcID);
+		break;
+	default:
+		ret = -ENOIOCTLCMD;
+		break;
+	}
+
+	return ret;
+}
+
+static const struct file_operations papr_hvpipe_ops = {
+	.unlocked_ioctl	=	papr_hvpipe_dev_ioctl,
+};
+
+static struct miscdevice papr_hvpipe_dev = {
+	.minor	=	MISC_DYNAMIC_MINOR,
+	.name	=	"papr-hvpipe",
+	.fops	=	&papr_hvpipe_ops,
+};
+
+static int __init papr_hvpipe_init(void)
+{
+	int ret;
+
+	if (!of_find_property(rtas.dev, "ibm,hypervisor-pipe-capable",
+		NULL))
+		return -ENODEV;
+
+	if (!rtas_function_implemented(RTAS_FN_IBM_SEND_HVPIPE_MSG) ||
+		!rtas_function_implemented(RTAS_FN_IBM_RECEIVE_HVPIPE_MSG))
+		return -ENODEV;
+
+	ret = misc_register(&papr_hvpipe_dev);
+	if (ret) {
+		pr_err("misc-dev registration failed %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+machine_device_initcall(pseries, papr_hvpipe_init);
diff --git a/arch/powerpc/platforms/pseries/papr-hvpipe.h b/arch/powerpc/platforms/pseries/papr-hvpipe.h
new file mode 100644
index 000000000000..3b6f9e737913
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/papr-hvpipe.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _PAPR_HVPIPE_H
+#define _PAPR_HVPIPE_H
+
+#define	HVPIPE_HMC_ID_MASK	0x02000000 /*02-HMC,00-reserved and HMC ID */
+
+struct hvpipe_source_info {
+	struct list_head list;	/* list of sources */
+	u32 srcID;
+	wait_queue_head_t recv_wqh;	 /* wake up poll() waitq */
+	struct task_struct *tsk;
+};
+
+#endif /* _PAPR_HVPIPE_H */