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From: Babu Moger <babu.moger@amd.com>
To: mst@redhat.com, marcel@redhat.com, pbonzini@redhat.com,
	rth@twiddle.net, ehabkost@redhat.com, mtosatti@redhat.com
Cc: babu.moger@amd.com, kash@tripleback.net, qemu-devel@nongnu.org,
	kvm@vger.kernel.org
Subject: [PATCH v5 5/9] i386: Use the statically loaded cache definitions
Date: Tue, 27 Mar 2018 17:31:07 -0400	[thread overview]
Message-ID: <1522186271-27743-6-git-send-email-babu.moger@amd.com> (raw)
In-Reply-To: <1522186271-27743-1-git-send-email-babu.moger@amd.com>

Use the statically loaded cache definitions if available
and legacy-cache parameter is not set.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 target/i386/cpu.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index f4fbe3a..738927d 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3938,8 +3938,13 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
                (L1_ITLB_2M_ASSOC <<  8) | (L1_ITLB_2M_ENTRIES);
         *ebx = (L1_DTLB_4K_ASSOC << 24) | (L1_DTLB_4K_ENTRIES << 16) | \
                (L1_ITLB_4K_ASSOC <<  8) | (L1_ITLB_4K_ENTRIES);
-        *ecx = encode_cache_cpuid80000005(&l1d_cache_amd);
-        *edx = encode_cache_cpuid80000005(&l1i_cache_amd);
+        if (env->cache_info.valid && !cpu->legacy_cache) {
+            *ecx = encode_cache_cpuid80000005(&env->cache_info.l1d_cache);
+            *edx = encode_cache_cpuid80000005(&env->cache_info.l1i_cache);
+        } else {
+            *ecx = encode_cache_cpuid80000005(&l1d_cache_amd);
+            *edx = encode_cache_cpuid80000005(&l1i_cache_amd);
+        }
         break;
     case 0x80000006:
         /* cache info (L2 cache) */
@@ -3955,9 +3960,16 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
                (L2_DTLB_4K_ENTRIES << 16) | \
                (AMD_ENC_ASSOC(L2_ITLB_4K_ASSOC) << 12) | \
                (L2_ITLB_4K_ENTRIES);
-        encode_cache_cpuid80000006(&l2_cache_amd,
-                                   cpu->enable_l3_cache ? &l3_cache : NULL,
-                                   ecx, edx);
+        if (env->cache_info.valid && !cpu->legacy_cache) {
+            encode_cache_cpuid80000006(&env->cache_info.l2_cache,
+                                       cpu->enable_l3_cache ?
+                                       &env->cache_info.l3_cache : NULL,
+                                       ecx, edx);
+        } else {
+            encode_cache_cpuid80000006(&l2_cache_amd,
+                                       cpu->enable_l3_cache ? &l3_cache : NULL,
+                                       ecx, edx);
+        }
         break;
     case 0x80000007:
         *eax = 0;
-- 
1.8.3.1

  parent reply	other threads:[~2018-03-27 21:31 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-27 21:31 [PATCH v5 0/9] i386: Enable TOPOEXT to support hyperthreading on AMD CPU Babu Moger
2018-03-27 21:31 ` [PATCH v5 1/9] i386: Helpers to encode cache information consistently Babu Moger
2018-03-27 21:31 ` [PATCH v5 2/9] i386: Add cache information in X86CPUDefinition Babu Moger
2018-03-27 21:31 ` [PATCH v5 3/9] i386: Initialize cache information for EPYC family processors Babu Moger
2018-03-27 21:31 ` [PATCH v5 4/9] i386: Add new property to control cache info Babu Moger
2018-04-09 16:59   ` Alexandr Iarygin
2018-04-09 19:51     ` Moger, Babu
2018-04-09 20:07       ` Eduardo Habkost
2018-03-27 21:31 ` Babu Moger [this message]
2018-03-27 21:31 ` [PATCH v5 6/9] i386: Populate AMD Processor Cache Information for cpuid 0x8000001D Babu Moger
2018-03-27 21:31 ` [PATCH v5 7/9] i386: Add support for CPUID_8000_001E for AMD Babu Moger
2018-03-27 21:31 ` [PATCH v5 8/9] i386: Enable TOPOEXT feature on AMD EPYC CPU Babu Moger
2018-03-27 21:31 ` [PATCH v5 9/9] i386: Remove generic SMT thread check Babu Moger
2018-04-09  2:58 ` [PATCH v5 0/9] i386: Enable TOPOEXT to support hyperthreading on AMD CPU Moger, Babu

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