linux-kernel - Re: [PATCH v15 05/23] x86/virt/tdx: Handle SEAMCALL no entropy error in common code

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Message-ID: <e5646555-c265-4c55-b6b1-527460de5b34@intel.com>
Date:   Thu, 9 Nov 2023 08:38:44 -0800
From:   Dave Hansen <dave.hansen@...el.com>
To:     Kai Huang <kai.huang@...el.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     x86@...nel.org, kirill.shutemov@...ux.intel.com,
        peterz@...radead.org, tony.luck@...el.com, tglx@...utronix.de,
        bp@...en8.de, mingo@...hat.com, hpa@...or.com, seanjc@...gle.com,
        pbonzini@...hat.com, rafael@...nel.org, david@...hat.com,
        dan.j.williams@...el.com, len.brown@...el.com, ak@...ux.intel.com,
        isaku.yamahata@...el.com, ying.huang@...el.com, chao.gao@...el.com,
        sathyanarayanan.kuppuswamy@...ux.intel.com, nik.borisov@...e.com,
        bagasdotme@...il.com, sagis@...gle.com, imammedo@...hat.com
Subject: Re: [PATCH v15 05/23] x86/virt/tdx: Handle SEAMCALL no entropy error
 in common code

On 11/9/23 03:55, Kai Huang wrote:
> Some SEAMCALLs use the RDRAND hardware and can fail for the same reasons
> as RDRAND.  Use the kernel RDRAND retry logic for them.
> 
> There are three __seamcall*() variants.  Do the SEAMCALL retry in common
> code and add a wrapper for each of them.

The new common wrapper looks great, thanks:

Reviewed-by: Dave Hansen <dave.hansen@...ux.intel.com>