From 64f51949a776e1acdcf5dfb46eea9972547bfd4d Mon Sep 17 00:00:00 2001
From: Stanislav Lanci <pixo@polepetko.eu>
Date: Tue, 30 Apr 2019 09:15:14 -0400
Subject: [PATCH] Pass through cache information for TOPOEXT CPUs

Backports commit a4e0b436f44a4bb47ed4a75b0c05d2547cf12b1c from qemu
---
 qemu/target/i386/cpu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/qemu/target/i386/cpu.c b/qemu/target/i386/cpu.c
index e24801e9..2f627a18 100644
--- a/qemu/target/i386/cpu.c
+++ b/qemu/target/i386/cpu.c
@@ -4102,6 +4102,10 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
         }
         break;
     case 0x8000001D:
+        if (cpu->cache_info_passthrough) {
+            host_cpuid(index, count, eax, ebx, ecx, edx);
+            break;
+        }
         *eax = 0;
         switch (count) {
         case 0: /* L1 dcache info */