From: Yosry Ahmed <yosry@kernel.org>
To: Peter Fang <peter.fang@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Ritesh Harjani <ritesh.list@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Thomas Gleixner <tglx@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
kvm@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/3] KVM: Take gpa_t in kvm_vcpu_map[_readonly]()
Date: Tue, 21 Apr 2026 23:08:17 +0000 [thread overview]
Message-ID: <aegDJssx-ZvbfggI@google.com> (raw)
In-Reply-To: <20260408001137.3290444-4-peter.fang@intel.com>
On Tue, Apr 07, 2026 at 05:11:30PM -0700, Peter Fang wrote:
> Move the conversion from a gpa_t to a gfn_t into kvm_vcpu_map() and
> kvm_vcpu_map_readonly() so that they take a gpa_t directly, reducing
> boilerplate at call sites.
>
> __kvm_vcpu_map() still takes a gfn_t because guest page mapping is
> fundamentally GFN-based.
>
> No functional change intended.
>
> Compile-tested on x86 and ppc, which are the current users of these
> interfaces.
>
> Suggested-by: Yosry Ahmed <yosry@kernel.org>
> Signed-off-by: Peter Fang <peter.fang@intel.com>
> ---
I was going to suggest a WARN in kvm_vcpu_map() and
kvm_vcpu_map_readonly() if the passed GPA is not page-aligned, but Sean
usually hates my paranoid WARN suggestions.
Anyway:
Reviewed-by: Yosry Ahmed <yosry@kernel.org>
next prev parent reply other threads:[~2026-04-21 23:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-08 0:11 [PATCH v2 0/3] KVM: Fix and clean up kvm_vcpu_map[_readonly]() usages Peter Fang
2026-04-08 0:11 ` [PATCH v2 1/3] KVM: Fix kvm_vcpu_map[_readonly]() function prototypes Peter Fang
2026-04-21 23:05 ` Yosry Ahmed
2026-04-08 0:11 ` [PATCH v2 2/3] KVM: Move page mapping/unmapping APIs in kvm_host.h Peter Fang
2026-04-21 23:06 ` Yosry Ahmed
2026-04-08 0:11 ` [PATCH v2 3/3] KVM: Take gpa_t in kvm_vcpu_map[_readonly]() Peter Fang
2026-04-21 23:08 ` Yosry Ahmed [this message]
2026-04-21 23:19 ` Sean Christopherson
2026-04-21 23:25 ` Yosry Ahmed
2026-04-21 23:29 ` Sean Christopherson
2026-04-21 23:41 ` Yosry Ahmed
2026-04-22 0:27 ` Sean Christopherson
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