4.4-stable review patch. If anyone has any objections, please let me know.
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From: Peter Zijlstra peterz@infradead.org
(cherry picked from commit c940a3fb1e2e9b7d03228ab28f375fb5a47ff699)
Replace indirect call with CALL_NOSPEC.
Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Signed-off-by: Thomas Gleixner tglx@linutronix.de Reviewed-by: David Woodhouse dwmw@amazon.co.uk Cc: Andrea Arcangeli aarcange@redhat.com Cc: Andi Kleen ak@linux.intel.com Cc: Ashok Raj ashok.raj@intel.com Cc: Greg KH gregkh@linuxfoundation.org Cc: Jun Nakajima jun.nakajima@intel.com Cc: David Woodhouse dwmw2@infradead.org Cc: Linus Torvalds torvalds@linux-foundation.org Cc: rga@amazon.de Cc: Dave Hansen dave.hansen@intel.com Cc: Asit Mallick asit.k.mallick@intel.com Cc: Andy Lutomirski luto@kernel.org Cc: Josh Poimboeuf jpoimboe@redhat.com Cc: Jason Baron jbaron@akamai.com Cc: Paolo Bonzini pbonzini@redhat.com Cc: Dan Williams dan.j.williams@intel.com Cc: Arjan Van De Ven arjan.van.de.ven@intel.com Cc: Tim Chen tim.c.chen@linux.intel.com Link: https://lkml.kernel.org/r/20180125095843.645776917@infradead.org Signed-off-by: David Woodhouse dwmw@amazon.co.uk [backport to 4.4] Signed-off-by: Jack Wang jinpu.wang@profitbricks.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/vmx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8377,13 +8377,13 @@ static void vmx_handle_external_intr(str "pushf\n\t" "orl $0x200, (%%" _ASM_SP ")\n\t" __ASM_SIZE(push) " $%c[cs]\n\t" - "call *%[entry]\n\t" + CALL_NOSPEC : #ifdef CONFIG_X86_64 [sp]"=&r"(tmp) #endif : - [entry]"r"(entry), + THUNK_TARGET(entry), [ss]"i"(__KERNEL_DS), [cs]"i"(__KERNEL_CS) );