Messages in this thread Patch in this message | | | From | "Sinclair Yeh" <> | Subject | [PATCH 2/6] x86: Update vmware.c to use the common VMW_PORT macros | Date | Fri, 4 Dec 2015 15:19:39 -0800 |
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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>
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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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