> -----Original Message----- > From: Thomas Gleixner [mailto:tglx@xxxxxxxxxxxxx] > Sent: Saturday, September 9, 2017 2:40 AM > To: KY Srinivasan <kys@xxxxxxxxxxxxx> > Cc: x86@xxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; olaf@xxxxxxxxx; > apw@xxxxxxxxxxxxx; jasowang@xxxxxxxxxx; hpa@xxxxxxxxx; > mingo@xxxxxxxxxx > Subject: Re: [PATCH 1/1] x86/hyper-V: Allocate the IDT entry early in boot > > On Fri, 8 Sep 2017, K. Y. Srinivasan wrote: > > > Allocate the hypervisor callback IDT entry early in the boot sequence. > > > > Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > > --- > > arch/x86/kernel/cpu/mshyperv.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/arch/x86/kernel/cpu/mshyperv.c > b/arch/x86/kernel/cpu/mshyperv.c > > index 3b3f713e15e5..236324e83a3a 100644 > > --- a/arch/x86/kernel/cpu/mshyperv.c > > +++ b/arch/x86/kernel/cpu/mshyperv.c > > @@ -59,8 +59,6 @@ void hyperv_vector_handler(struct pt_regs *regs) > > void hv_setup_vmbus_irq(void (*handler)(void)) > > { > > vmbus_handler = handler; > > - /* Setup the IDT for hypervisor callback */ > > - alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR, > hyperv_callback_vector); > > } > > > > void hv_remove_vmbus_irq(void) > > @@ -251,6 +249,8 @@ static void __init ms_hyperv_init_platform(void) > > */ > > x86_platform.apic_post_init = hyperv_init; > > hyperv_setup_mmu_ops(); > > + /* Setup the IDT for hypervisor callback */ > > + alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR, > hyperv_callback_vector); > > #endif > > } > > Nice. So we can make all of that gate/idt stuff __init now. > > That makes my previous fix obsolete, right? Yes. K. Y > > Thanks, > > tglx > _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
