Commit a295673a authored Dec 02, 2010 by Avi Kivity

KVM: VMX: Return 0 from a failed VMREAD

If we execute VMREAD during reboot we'll just skip over it. Instead of
returning garbage, return 0, which has a much smaller chance of confusing
the code. Otherwise we risk a flood of debug printk()s which block the
reboot process if a serial console or netconsole is enabled.

Signed-off-by: Avi Kivity <avi@redhat.com>

parent b7c4145b

arch/x86/kvm/vmx.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -565,10 +565,10 @@ static inline void ept_sync_individual_addr(u64 eptp, gpa_t gpa)

		static unsigned long vmcs_readl(unsigned long field)
		{
		unsigned long value;
		unsigned long value = 0;

		asm volatile (__ex(ASM_VMX_VMREAD_RDX_RAX)
		: "=a"(value) : "d"(field) : "cc");
		: "+a"(value) : "d"(field) : "cc");
		return value;
		}

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