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From: Anuj Mittal <anuj.mittal@intel.com>
To: openembedded-core@lists.openembedded.org
Subject: [PATCH] tune-core2: use n270 instead of core2duo
Date: Thu, 13 Sep 2018 15:25:47 +0800	[thread overview]
Message-ID: <20180913072547.12321-1-anuj.mittal@intel.com> (raw)

Fixes warnings in builds using core2-32 tune:

warning: TCG doesn't support requested feature: CPUID.80000001H:EDX.syscall [bit 11]
warning: TCG doesn't support requested feature: CPUID.80000001H:EDX.lm [bit 29]

when executing postinsts using qemu-i386.

i386 target doesn't enable CPUID_EXT2_SYSCALL and CPUID_EXT2_LM [1]
while cpu choice of core2duo that we use for core2-32 TUNE does [2].
Use n270 cpu instead to use with qemu which supports SSSE3 and doesn't
have these bits enabled [3].

[1] https://github.com/qemu/qemu/blob/master/target/i386/cpu.c#L739
[2] https://github.com/qemu/qemu/blob/master/target/i386/cpu.c#L1439
[3] https://github.com/qemu/qemu/blob/master/target/i386/cpu.c#L1603

Fixes [YOCTO #12916]

Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
---
 meta/conf/machine/include/tune-core2.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/conf/machine/include/tune-core2.inc b/meta/conf/machine/include/tune-core2.inc
index c686bb4682..ddde719bde 100644
--- a/meta/conf/machine/include/tune-core2.inc
+++ b/meta/conf/machine/include/tune-core2.inc
@@ -21,7 +21,7 @@ TUNE_FEATURES_tune-core2-32 = "${TUNE_FEATURES_tune-x86} core2"
 BASE_LIB_tune-core2-32 = "lib"
 TUNE_PKGARCH_tune-core2-32 = "core2-32"
 PACKAGE_EXTRA_ARCHS_tune-core2-32 = "${PACKAGE_EXTRA_ARCHS_tune-i686} core2-32"
-QEMU_EXTRAOPTIONS_core2-32 = " -cpu core2duo"
+QEMU_EXTRAOPTIONS_core2-32 = " -cpu n270"
 
 AVAILTUNES += "core2-64"
 TUNE_FEATURES_tune-core2-64 = "${TUNE_FEATURES_tune-x86-64} core2"
-- 
2.17.1



             reply	other threads:[~2018-09-13  7:25 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-13  7:25 Anuj Mittal [this message]
2018-09-13 21:33 ` [PATCH] tune-core2: use n270 instead of core2duo Andre McCurdy
2018-09-13 22:16   ` Martin Jansa
2018-09-13 22:50     ` Andre McCurdy
2018-09-13 23:46       ` Anuj Mittal
2018-09-14  0:03         ` Andre McCurdy
2018-09-14 10:43       ` Burton, Ross

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