motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-08 10:13:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

i386: Expose module level in CPUID[0x1F]

Browse source 
Linux kernel (from v6.4, with commit edc0a2b595765 ("x86/topology: Fix
erroneous smp_num_siblings on Intel Hybrid platforms") is able to
handle platforms with Module level enumerated via CPUID.1F.

Expose the module level in CPUID[0x1F] if the machine has more than 1
modules.

Tested-by: Yongwei Ma <yongwei.ma@intel.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Message-ID: <20240424154929.1487382-15-zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Zhao Liu 2024-04-24 23:49:22 +08:00 • committed by Paolo Bonzini
parent 3568adc995
commit 5304873acd
4 changed files with 12 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

2
hw/i386/x86-common.c
View file

@ -273,7 +273,7 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
if (ms->smp.modules > 1) {
env->nr_modules = ms->smp.modules;
/* TODO: Expose module level in CPUID[0x1F]. */
set_bit(CPU_TOPO_LEVEL_MODULE, env->avail_cpu_topo);
}
if (ms->smp.dies > 1) {