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i386: Add new Hygon 'Dhyana' CPU model

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Add a new base CPU model called 'Dhyana' to model processors from Hygon
Dhyana(family 18h), which derived from AMD EPYC(family 17h).

The following features bits have been removed compare to AMD EPYC:
aes, pclmulqdq, sha_ni

The Hygon Dhyana support to KVM in Linux is already accepted upstream[1].
So add Hygon Dhyana support to Qemu is necessary to create Hygon's own
CPU model.

Reference:
[1] https://git.kernel.org/tip/fec98069fb72fb656304a3e52265e0c2fc9adf87

Signed-off-by: Pu Wen <puwen@hygon.cn>
Message-Id: <1555416373-28690-1-git-send-email-puwen@hygon.cn>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Pu Wen 2019-04-16 20:06:13 +08:00 • committed by Eduardo Habkost
parent 3284aa1281
commit 8d031cec36
2 changed files with 52 additions and 0 deletions
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2
target/i386/cpu.h
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@ -726,6 +726,8 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_VENDOR_VIA "CentaurHauls"
#define CPUID_VENDOR_HYGON "HygonGenuine"
#define CPUID_MWAIT_IBE (1U << 1) /* Interrupts can exit capability */
#define CPUID_MWAIT_EMX (1U << 0) /* enumeration supported */