[PATCH v2 3/4] drm/vmwgfx: Update the backdoor call with support for new instructions
Thomas Hellström (VMware)
thomas_os at shipmail.org
Fri Aug 23 08:13:15 UTC 2019
From: Thomas Hellstrom <thellstrom at vmware.com>
Use the definition provided by include/asm/vmware.h
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at redhat.com>
Cc: Borislav Petkov <bp at alien8.de>
Cc: "H. Peter Anvin" <hpa at zytor.com>
Cc: <x86 at kernel.org>
Cc: <dri-devel at lists.freedesktop.org>
Signed-off-by: Thomas Hellstrom <thellstrom at vmware.com>
Reviewed-by: Doug Covelli <dcovelli at vmware.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 21 +++++++++--------
drivers/gpu/drm/vmwgfx/vmwgfx_msg.h | 35 +++++++++++++++--------------
2 files changed, 28 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
index 81a86c3b77bc..1281e52898ee 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
@@ -45,8 +45,6 @@
#define RETRIES 3
#define VMW_HYPERVISOR_MAGIC 0x564D5868
-#define VMW_HYPERVISOR_PORT 0x5658
-#define VMW_HYPERVISOR_HB_PORT 0x5659
#define VMW_PORT_CMD_MSG 30
#define VMW_PORT_CMD_HB_MSG 0
@@ -92,7 +90,7 @@ static int vmw_open_channel(struct rpc_channel *channel, unsigned int protocol)
VMW_PORT(VMW_PORT_CMD_OPEN_CHANNEL,
(protocol | GUESTMSG_FLAG_COOKIE), si, di,
- VMW_HYPERVISOR_PORT,
+ 0,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);
@@ -125,7 +123,7 @@ static int vmw_close_channel(struct rpc_channel *channel)
VMW_PORT(VMW_PORT_CMD_CLOSE_CHANNEL,
0, si, di,
- (VMW_HYPERVISOR_PORT | (channel->channel_id << 16)),
+ channel->channel_id << 16,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);
@@ -159,7 +157,8 @@ static unsigned long vmw_port_hb_out(struct rpc_channel *channel,
VMW_PORT_HB_OUT(
(MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
msg_len, si, di,
- VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
+ VMWARE_HYPERVISOR_HB | (channel->channel_id << 16) |
+ VMWARE_HYPERVISOR_OUT,
VMW_HYPERVISOR_MAGIC, bp,
eax, ebx, ecx, edx, si, di);
@@ -180,7 +179,7 @@ static unsigned long vmw_port_hb_out(struct rpc_channel *channel,
VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_SENDPAYLOAD << 16),
word, si, di,
- VMW_HYPERVISOR_PORT | (channel->channel_id << 16),
+ channel->channel_id << 16,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);
}
@@ -212,7 +211,7 @@ static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply,
VMW_PORT_HB_IN(
(MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
reply_len, si, di,
- VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
+ VMWARE_HYPERVISOR_HB | (channel->channel_id << 16),
VMW_HYPERVISOR_MAGIC, bp,
eax, ebx, ecx, edx, si, di);
@@ -229,7 +228,7 @@ static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply,
VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_RECVPAYLOAD << 16),
MESSAGE_STATUS_SUCCESS, si, di,
- VMW_HYPERVISOR_PORT | (channel->channel_id << 16),
+ channel->channel_id << 16,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);
@@ -268,7 +267,7 @@ static int vmw_send_msg(struct rpc_channel *channel, const char *msg)
VMW_PORT(VMW_PORT_CMD_SENDSIZE,
msg_len, si, di,
- VMW_HYPERVISOR_PORT | (channel->channel_id << 16),
+ channel->channel_id << 16,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);
@@ -326,7 +325,7 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
VMW_PORT(VMW_PORT_CMD_RECVSIZE,
0, si, di,
- (VMW_HYPERVISOR_PORT | (channel->channel_id << 16)),
+ channel->channel_id << 16,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);
@@ -370,7 +369,7 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
VMW_PORT(VMW_PORT_CMD_RECVSTATUS,
MESSAGE_STATUS_SUCCESS, si, di,
- (VMW_HYPERVISOR_PORT | (channel->channel_id << 16)),
+ channel->channel_id << 16,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h
index 4907e50fb20a..f685c7071dec 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h
@@ -32,6 +32,7 @@
#ifndef _VMWGFX_MSG_H
#define _VMWGFX_MSG_H
+#include <asm/vmware.h>
/**
* Hypervisor-specific bi-directional communication channel. Should never
@@ -44,7 +45,7 @@
* @in_ebx: [IN] Message Len, through EBX
* @in_si: [IN] Input argument through SI, set to 0 if not used
* @in_di: [IN] Input argument through DI, set ot 0 if not used
- * @port_num: [IN] port number + [channel id]
+ * @flags: [IN] hypercall flags + [channel id]
* @magic: [IN] hypervisor magic value
* @eax: [OUT] value of EAX register
* @ebx: [OUT] e.g. status from an HB message status command
@@ -54,10 +55,10 @@
* @di: [OUT]
*/
#define VMW_PORT(cmd, in_ebx, in_si, in_di, \
- port_num, magic, \
+ flags, magic, \
eax, ebx, ecx, edx, si, di) \
({ \
- asm volatile ("inl %%dx, %%eax;" : \
+ asm volatile (VMWARE_HYPERCALL : \
"=a"(eax), \
"=b"(ebx), \
"=c"(ecx), \
@@ -67,7 +68,7 @@
"a"(magic), \
"b"(in_ebx), \
"c"(cmd), \
- "d"(port_num), \
+ "d"(flags), \
"S"(in_si), \
"D"(in_di) : \
"memory"); \
@@ -85,7 +86,7 @@
* @in_ecx: [IN] Message Len, through ECX
* @in_si: [IN] Input argument through SI, set to 0 if not used
* @in_di: [IN] Input argument through DI, set to 0 if not used
- * @port_num: [IN] port number + [channel id]
+ * @flags: [IN] hypercall flags + [channel id]
* @magic: [IN] hypervisor magic value
* @bp: [IN]
* @eax: [OUT] value of EAX register
@@ -98,12 +99,12 @@
#ifdef __x86_64__
#define VMW_PORT_HB_OUT(cmd, in_ecx, in_si, in_di, \
- port_num, magic, bp, \
+ flags, magic, bp, \
eax, ebx, ecx, edx, si, di) \
({ \
asm volatile ("push %%rbp;" \
"mov %12, %%rbp;" \
- "rep outsb;" \
+ VMWARE_HYPERCALL_HB_OUT \
"pop %%rbp;" : \
"=a"(eax), \
"=b"(ebx), \
@@ -114,7 +115,7 @@
"a"(magic), \
"b"(cmd), \
"c"(in_ecx), \
- "d"(port_num), \
+ "d"(flags), \
"S"(in_si), \
"D"(in_di), \
"r"(bp) : \
@@ -123,12 +124,12 @@
#define VMW_PORT_HB_IN(cmd, in_ecx, in_si, in_di, \
- port_num, magic, bp, \
+ flags, magic, bp, \
eax, ebx, ecx, edx, si, di) \
({ \
asm volatile ("push %%rbp;" \
"mov %12, %%rbp;" \
- "rep insb;" \
+ VMWARE_HYPERCALL_HB_IN \
"pop %%rbp" : \
"=a"(eax), \
"=b"(ebx), \
@@ -139,7 +140,7 @@
"a"(magic), \
"b"(cmd), \
"c"(in_ecx), \
- "d"(port_num), \
+ "d"(flags), \
"S"(in_si), \
"D"(in_di), \
"r"(bp) : \
@@ -157,13 +158,13 @@
* just pushed it.
*/
#define VMW_PORT_HB_OUT(cmd, in_ecx, in_si, in_di, \
- port_num, magic, bp, \
+ flags, magic, bp, \
eax, ebx, ecx, edx, si, di) \
({ \
asm volatile ("push %12;" \
"push %%ebp;" \
"mov 0x04(%%esp), %%ebp;" \
- "rep outsb;" \
+ VMWARE_HYPERCALL_HB_OUT \
"pop %%ebp;" \
"add $0x04, %%esp;" : \
"=a"(eax), \
@@ -175,7 +176,7 @@
"a"(magic), \
"b"(cmd), \
"c"(in_ecx), \
- "d"(port_num), \
+ "d"(flags), \
"S"(in_si), \
"D"(in_di), \
"m"(bp) : \
@@ -184,13 +185,13 @@
#define VMW_PORT_HB_IN(cmd, in_ecx, in_si, in_di, \
- port_num, magic, bp, \
+ flags, magic, bp, \
eax, ebx, ecx, edx, si, di) \
({ \
asm volatile ("push %12;" \
"push %%ebp;" \
"mov 0x04(%%esp), %%ebp;" \
- "rep insb;" \
+ VMWARE_HYPERCALL_HB_IN \
"pop %%ebp;" \
"add $0x04, %%esp;" : \
"=a"(eax), \
@@ -202,7 +203,7 @@
"a"(magic), \
"b"(cmd), \
"c"(in_ecx), \
- "d"(port_num), \
+ "d"(flags), \
"S"(in_si), \
"D"(in_di), \
"m"(bp) : \
--
2.20.1
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