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Re: [PATCH v10 28/38] x86/fred: FRED entry/exit and dispatch code
- To: Nikolay Borisov <nik.borisov@xxxxxxxx>, Xin Li <xin3.li@xxxxxxxxx>, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-edac@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
- Date: Thu, 21 Sep 2023 12:08:23 +0200
- Cc: mingo@xxxxxxxxxx, bp@xxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, hpa@xxxxxxxxx, luto@xxxxxxxxxx, pbonzini@xxxxxxxxxx, seanjc@xxxxxxxxxx, peterz@xxxxxxxxxxxxx, jgross@xxxxxxxx, ravi.v.shankar@xxxxxxxxx, mhiramat@xxxxxxxxxx, andrew.cooper3@xxxxxxxxxx, jiangshanlai@xxxxxxxxx
- Delivery-date: Thu, 21 Sep 2023 10:08:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu, Sep 21 2023 at 12:48, Nikolay Borisov wrote:
> On 14.09.23 г. 7:47 ч., Xin Li wrote:
>> +
>> + /* INT80 */
>> + case IA32_SYSCALL_VECTOR:
>> + if (likely(IS_ENABLED(CONFIG_IA32_EMULATION))) {
>
> Since future kernels will support boottime toggling of whether 32bit
> syscall interface should be enabled or not as per:
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/entry&id=1da5c9bc119d3a749b519596b93f9b2667e93c4a
>
> It will make more sense to replace this with ia32_enabled() invocation.
> I guess this could be done as a follow-up patch based on when this is
> merged as the ia32_enbaled changes are going to be merged in 6.7.
The simplest solution is to rebase the series to tip x86/entry and just
do it right away :)
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