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SubjectRe: [PATCH 14/62] x86/boot/compressed/64: Add stage1 #VC handler
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> On Feb 12, 2020, at 3:38 AM, Joerg Roedel <joro@8bytes.org> wrote:
>
> On Tue, Feb 11, 2020 at 02:23:22PM -0800, Andy Lutomirski wrote:
>>> On Tue, Feb 11, 2020 at 5:53 AM Joerg Roedel <joro@8bytes.org> wrote:
>>> +void __init no_ghcb_vc_handler(struct pt_regs *regs)
>>
>> Isn't there a second parameter: unsigned long error_code?
>
> No, the function gets the error-code from regs->orig_ax. This particular
> function only needs to check for error_code == SVM_EXIT_CPUID, as that
> is the only one supported when there is no GHCB.
>

Hmm. It might be nice to use the same signature for early handlers as for normal ones.

> Regards,
>
> Joerg

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