i386: remove the new CPUID 'PCONFIG' from Icelake-Server CPU model

PCONFIG is not available to guests; it must be specifically enabled
using the PCONFIG_ENABLE execution control.  Disable it, because
no one can ever use it.

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1545227081-213696-2-git-send-email-robert.hu@linux.intel.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 76e5a4d58357b9d077afccf7f7c82e17f733b722)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index f81d35e1f9141224044689b6b452b41d884225ea..83152204b56ea565b9ccfd2b304e6e65f59d7324 100644 (file)
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -2613,8 +2613,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
             CPUID_7_0_ECX_AVX512VNNI | CPUID_7_0_ECX_AVX512BITALG |
             CPUID_7_0_ECX_AVX512_VPOPCNTDQ | CPUID_7_0_ECX_LA57,
         .features[FEAT_7_0_EDX] =
-            CPUID_7_0_EDX_PCONFIG | CPUID_7_0_EDX_SPEC_CTRL |
-            CPUID_7_0_EDX_SPEC_CTRL_SSBD,
+            CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_SPEC_CTRL_SSBD,
         /* Missing: XSAVES (not supported by some Linux versions,
                 * including v4.1 to v4.12).
                 * KVM doesn't yet expose any XSAVES state save component,