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Subject[PATCH 2/6] x86: Update vmware.c to use the common VMW_PORT macros
Date
Updated the VMWARE_PORT macro to use the new VMW_PORT
macro. Doing this instead of replacing all existing
instances of VMWARE_PORT to minimize code change.

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Alok N Kataria <akataria@vmware.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: pv-drivers@vmware.com
Cc: virtualization@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---

v2:
Instead of replacing all existing instances of VMWARE_PORT
with VMW_PORT, update VMWARE_PORT to use the new VMW_PORT.

v3:
Using updated VMWARE_PORT() macro, which needs hypervisor magic in the
parameter

v4:
Swapped the first and second parameters because VMW_PORT has
changed.
---
arch/x86/kernel/cpu/vmware.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index 628a059..67c429d 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -26,6 +26,7 @@
#include <asm/div64.h>
#include <asm/x86_init.h>
#include <asm/hypervisor.h>
+#include <asm/vmware.h>

#define CPUID_VMWARE_INFO_LEAF 0x40000000
#define VMWARE_HYPERVISOR_MAGIC 0x564D5868
@@ -37,13 +38,14 @@
#define VMWARE_PORT_CMD_LEGACY_X2APIC 3
#define VMWARE_PORT_CMD_VCPU_RESERVED 31

-#define VMWARE_PORT(cmd, eax, ebx, ecx, edx) \
- __asm__("inl (%%dx)" : \
- "=a"(eax), "=c"(ecx), "=d"(edx), "=b"(ebx) : \
- "0"(VMWARE_HYPERVISOR_MAGIC), \
- "1"(VMWARE_PORT_CMD_##cmd), \
- "2"(VMWARE_HYPERVISOR_PORT), "3"(UINT_MAX) : \
- "memory");
+#define VMWARE_PORT(cmd, eax, ebx, ecx, edx) \
+({ \
+ unsigned long __si = 0, __di = 0; \
+ VMW_PORT(VMWARE_PORT_CMD_##cmd, UINT_MAX, VMWARE_HYPERVISOR_PORT, \
+ VMWARE_HYPERVISOR_MAGIC, \
+ eax, ebx, ecx, edx, __si, __di); \
+})
+

static inline int __vmware_platform(void)
{
--
1.9.1


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