From: Sheng Yang <[email protected]> Some in-famous OS do unaligned writing for APIC MMIO, and the return value has been missed in recent change, then the OS hangs.
Signed-off-by: Sheng Yang <[email protected]> Signed-off-by: Avi Kivity <[email protected]> --- arch/x86/kvm/lapic.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index dc6bec2..31f1d1c 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -828,7 +828,7 @@ static int apic_mmio_write(struct kvm_io_device *this, if (len != 4 || (offset & 0xf)) { /* Don't shout loud, $infamous_os would cause only noise. */ apic_debug("apic write: bad size=%d %lx\n", len, (long)address); - return; + return 0; } val = *(u32*)data; -- 1.6.4.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
