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Re: [PATCH RFCv2 01/20] kvm: kvm_get_writable_id_regs
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From: |
Richard Henderson |
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Subject: |
Re: [PATCH RFCv2 01/20] kvm: kvm_get_writable_id_regs |
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Date: |
Thu, 12 Dec 2024 07:59:37 -0600 |
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User-agent: |
Mozilla Thunderbird |
On 12/6/24 05:21, Cornelia Huck wrote:
+#define NR_ID_REGS (3 * 8 * 8)
+
+typedef struct IdRegMap {
+ uint64_t regs[NR_ID_REGS];
+} IdRegMap;
+
Where does the NR_ID_REGS come from? In particular the * 3?
IIRC, all of the id registers are in op0=3, op1=0, crn=0, crm={0-7}, op2={0-7}.
Whatever the actual answer, some comments would be good.
r~
[PATCH RFCv2 03/20] arm/cpu: Store aa64isar0 into the idregs arrays, Cornelia Huck, 2024/12/06
[PATCH RFCv2 04/20] arm/cpu: Store aa64isar1/2 into the idregs array, Cornelia Huck, 2024/12/06
[PATCH RFCv2 07/20] arm/cpu: Store aa64drf0/1 into the idregs array, Cornelia Huck, 2024/12/06