linux-kernel - Re: [PATCH v2 05/18] KVM: x86: Move PIT ioctl helpers to i8254.c

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Message-ID: <aEt1nbNvQrL4xrkn@google.com>
Date: Thu, 12 Jun 2025 17:49:33 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Kai Huang <kai.huang@...el.com>
Cc: "pbonzini@...hat.com" <pbonzini@...hat.com>, "vkuznets@...hat.com" <vkuznets@...hat.com>, 
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 05/18] KVM: x86: Move PIT ioctl helpers to i8254.c

On Thu, Jun 12, 2025, Kai Huang wrote:
> On Wed, 2025-06-11 at 14:35 -0700, Sean Christopherson wrote:
> > Move the PIT ioctl helpers to i8254.c, i.e. to the file that implements
> > PIT emulation.  Eliminating PIT code in x86.c will allow adding a Kconfig
> > to control support for in-kernel I/O APIC, PIC, and PIT emulation with
> > minimal #ifdefs.
> 
> And it matches the other (existing) ioctl helpers which are under
> CONFIG_KVM_HYPERV [*] and CONFIG_KVM_XEN too.
> 
> [*]:  The kvm_ioctl_get_supported_hv_cpuid() seems to be the only one that
> still remains in kvm/x86.c but not in kvm/hyperv.c.

Ooh, yeah, that'd be a good one to move out of x86.c.