Commit 854dd542 authored Oct 13, 2016 by Renat Valiullin Committed by Thomas Gleixner Oct 19, 2016

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@vmware.com>
Acked-by: Alok N Kataria <akataria@vmware.com>
Cc: virtualization@lists.linux-foundation.org
Link: http://lkml.kernel.org/r/20161013184539.GA11497@rvaliullin-vm


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent 1a1891d7

arch/x86/kernel/cpu/vmware.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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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