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Message-ID: <157215878694.13117.10331983631021160763.tglx@nanos.tec.linutronix.de>
Date: Sun, 27 Oct 2019 06:46:26 -0000
From: Thomas Gleixner <tglx@...utronix.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [GIT pull] x86/urgent for 5.4-rc5
Linus,
please pull the latest x86-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus
up to: 6fee2a0be0ec: x86/cpu/vmware: Fix platform detection VMWARE_PORT macro
Two fixes for the VMWare guest support:
- Unbreak VMWare platform detection which got wreckaged by converting
an integer constant to a string constant.
- Fix the clang build of the VMWAre hypercall by explicitely specifying
the ouput register for INL instead of using the short form.
Thanks,
tglx
------------------>
Thomas Hellstrom (2):
x86/cpu/vmware: Use the full form of INL in VMWARE_HYPERCALL, for clang/llvm
x86/cpu/vmware: Fix platform detection VMWARE_PORT macro
arch/x86/include/asm/vmware.h | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/arch/x86/include/asm/vmware.h b/arch/x86/include/asm/vmware.h
index e00c9e875933..ac9fc51e2b18 100644
--- a/arch/x86/include/asm/vmware.h
+++ b/arch/x86/include/asm/vmware.h
@@ -4,6 +4,7 @@
#include <asm/cpufeatures.h>
#include <asm/alternative.h>
+#include <linux/stringify.h>
/*
* The hypercall definitions differ in the low word of the %edx argument
@@ -20,8 +21,8 @@
*/
/* Old port-based version */
-#define VMWARE_HYPERVISOR_PORT "0x5658"
-#define VMWARE_HYPERVISOR_PORT_HB "0x5659"
+#define VMWARE_HYPERVISOR_PORT 0x5658
+#define VMWARE_HYPERVISOR_PORT_HB 0x5659
/* Current vmcall / vmmcall version */
#define VMWARE_HYPERVISOR_HB BIT(0)
@@ -29,7 +30,8 @@
/* The low bandwidth call. The low word of edx is presumed clear. */
#define VMWARE_HYPERCALL \
- ALTERNATIVE_2("movw $" VMWARE_HYPERVISOR_PORT ", %%dx; inl (%%dx)", \
+ ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT) ", %%dx; " \
+ "inl (%%dx), %%eax", \
"vmcall", X86_FEATURE_VMCALL, \
"vmmcall", X86_FEATURE_VMW_VMMCALL)
@@ -38,7 +40,8 @@
* HB and OUT bits set.
*/
#define VMWARE_HYPERCALL_HB_OUT \
- ALTERNATIVE_2("movw $" VMWARE_HYPERVISOR_PORT_HB ", %%dx; rep outsb", \
+ ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT_HB) ", %%dx; " \
+ "rep outsb", \
"vmcall", X86_FEATURE_VMCALL, \
"vmmcall", X86_FEATURE_VMW_VMMCALL)
@@ -47,7 +50,8 @@
* HB bit set.
*/
#define VMWARE_HYPERCALL_HB_IN \
- ALTERNATIVE_2("movw $" VMWARE_HYPERVISOR_PORT_HB ", %%dx; rep insb", \
+ ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT_HB) ", %%dx; " \
+ "rep insb", \
"vmcall", X86_FEATURE_VMCALL, \
"vmmcall", X86_FEATURE_VMW_VMMCALL)
#endif
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