Re: [Qemu-devel] [PATCH] acpi-build: Set FORCE_APIC_CLUSTER_MODEL bit of FADT flags

[zhanghailiang <zhang.zhanghailiang@huawei.com>]

Hi,

Ping...

Are there any news about this patch?

Thanks,
zhanghailiang
> If we start Windows 2008 R2 DataCenter with number of cpu less than 8,
> The system will use APIC Flat Logical destination mode as default configuration,
> Which has an upper limit of 8 CPUs.
>
> The fault is that VM can not show all processors within Task Manager if
> we hot-add cpus when the number of cpus in VM extends the limit of 8.
>
> If we use cluster destination model, the problem will be solved.
>
> Signed-off-by: huangzhichao<huangzhichao@huawei.com>
> Signed-off-by: zhanghailiang<zhang.zhanghailiang@huawei.com>
> ---
>   hw/i386/acpi-build.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 10b84d0..fed4501 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -545,7 +545,8 @@ static void fadt_setup(AcpiFadtDescriptorRev1 *fadt, AcpiPmInfo *pm)
>                                 (1<<  ACPI_FADT_F_PROC_C1) |
>                                 (1<<  ACPI_FADT_F_SLP_BUTTON) |
>                                 (1<<  ACPI_FADT_F_RTC_S4));
> -    fadt->flags |= cpu_to_le32(1<<  ACPI_FADT_F_USE_PLATFORM_CLOCK);
> +    fadt->flags |= cpu_to_le32(1<<  ACPI_FADT_F_USE_PLATFORM_CLOCK |
> +                               1<<  ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL);
>   }
>
>