Commit-ID: 854dd54245f7f1b1175b1bada613929396a571be
Gitweb: http://git.kernel.org/tip/854dd54245f7f1b1175b1bada613929396a571be
Author: Renat Valiullin <rvaliullin@xxxxxxxxxx>
AuthorDate: Thu, 13 Oct 2016 11:45:39 -0700
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Wed, 19 Oct 2016 17:36:33 +0200
x86/vmware: Skip timer_irq_works() check on VMware
The timer_irq_works() boot check may sometimes fail in a VM, when
the Host is overcommitted or when the Guest is running nested.
Since the intended check is unnecessary on VMware's virtual
hardware, by-pass it.
Signed-off-by: Renat Valiullin <rvaliullin@xxxxxxxxxx>
Acked-by: Alok N Kataria <akataria@xxxxxxxxxx>
Cc: virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20161013184539.GA11497@rvaliullin-vm
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/vmware.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index 8116057..5130985 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -27,6 +27,7 @@
#include <asm/div64.h>
#include <asm/x86_init.h>
#include <asm/hypervisor.h>
+#include <asm/timer.h>
#include <asm/apic.h>
#define CPUID_VMWARE_INFO_LEAF 0x40000000
@@ -94,6 +95,10 @@ static void __init vmware_platform_setup(void)
} else {
pr_warn("Failed to get TSC freq from the hypervisor\n");
}
+
+#ifdef CONFIG_X86_IO_APIC
+ no_timer_check = 1;
+#endif
}
/*
--
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