On Fri, Jun 02, 2023 at 05:41:52AM -0700, Saurabh Sengar wrote: > In !ACPI system, there is no way to disable CONFIG_X86_MPPARSE. > When CONFIG_X86_MPPARSE is enabled for VTL2, the kernel will > scan low memory looking for MP tables. Don't allow this, because > low memory is controlled by VTL0 and may contain actual valid > tables for VTL0, which can confuse the VTL2 kernel. > > Signed-off-by: Saurabh Sengar <ssengar@xxxxxxxxxxxxxxxxxxx> > --- > arch/x86/hyperv/hv_vtl.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/x86/hyperv/hv_vtl.c b/arch/x86/hyperv/hv_vtl.c > index 1ba5d3b99b16..ea21d897b5da 100644 > --- a/arch/x86/hyperv/hv_vtl.c > +++ b/arch/x86/hyperv/hv_vtl.c > @@ -23,6 +23,10 @@ void __init hv_vtl_init_platform(void) > x86_init.irqs.pre_vector_init = x86_init_noop; > x86_init.timers.timer_init = x86_init_noop; > > + /* Avoid searching for BIOS MP tables */ > + x86_init.mpparse.find_smp_config = x86_init_noop; > + x86_init.mpparse.get_smp_config = x86_init_uint_noop; > + The code looks fine. Can you expand the commit message a bit so that people who are not familiar with VTL and your setup can understand what's going on? Thanks, Wei. > x86_platform.get_wallclock = get_rtc_noop; > x86_platform.set_wallclock = set_rtc_noop; > x86_platform.get_nmi_reason = hv_get_nmi_reason; > -- > 2.34.1 >
