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Re: [PATCH 3/7] target/arm/cpu: spe: Add an option to turn on/off vSPE s
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From: |
Richard Henderson |
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Subject: |
Re: [PATCH 3/7] target/arm/cpu: spe: Add an option to turn on/off vSPE support |
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Date: |
Fri, 14 Aug 2020 12:03:22 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 8/10/20 3:50 AM, Andrew Jones wrote:
>> @@ -1959,6 +1961,7 @@ enum arm_features {
>> ARM_FEATURE_VBAR, /* has cp15 VBAR */
>> ARM_FEATURE_M_SECURITY, /* M profile Security Extension */
>> ARM_FEATURE_M_MAIN, /* M profile Main Extension */
>> + ARM_FEATURE_SPE, /* has SPE support */
>
> We shouldn't need to add this feature bit. SPE should have an ID register
> bit to use instead.
Yes indeed: ID_AA64DFR0_EL1.PMSVer.
r~
[PATCH 5/7] target/arm/kvm: spe: Add device init and set_irq operations, Haibo Xu, 2020/08/07
[PATCH 6/7] hw/arm/virt: spe: Add SPE fdt binding for virt machine, Haibo Xu, 2020/08/07