[PATCH] x86: cpu: fixup number of addressable IDs for processor cores in the physical package

[Chuang Xu]

When QEMU is started with:
-cpu host,host-cache-info=on,l3-cache=off \
-smp 2,sockets=1,dies=1,cores=1,threads=2
Guest can't acquire maximum number of addressable IDs for processor cores in
the physical package from CPUID[04H].

This bug was introduced in commit d7caf13b5fcf742e5680c1d3448ba070fc811644.
Fix it by changing the judgement condition to a >= 1.

Signed-off-by: Chuang Xu <xuchuangxc...@bytedance.com>
Signed-off-by: Guixiong Wei <weiguixi...@bytedance.com>
Signed-off-by: Yipeng Yin <yinyip...@bytedance.com>
---
 target/i386/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index cd16cb893d..0369c01153 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -6097,7 +6097,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, 
uint32_t count,
             if (*eax & 31) {
                 int host_vcpus_per_cache = 1 + ((*eax & 0x3FFC000) >> 14);
                 int vcpus_per_socket = cs->nr_cores * cs->nr_threads;
-                if (cs->nr_cores > 1) {
+                if (cs->nr_cores >= 1) {
                     *eax &= ~0xFC000000;
                     *eax |= (pow2ceil(cs->nr_cores) - 1) << 26;
                 }
-- 
2.20.1