[PATCH v2 0/3] KVM: Fix and clean up kvm_vcpu_map[_readonly]() usages

Peter Fang
2026-04-08T00:12:38Z

kvm_vcpu_map() and kvm_vcpu_map_readonly() are declared to take a gpa_t
in kvm_host.h when they're supposed to take a gfn_t. First fix the
function prototypes, and then refactor them to correctly take a gpa_t,
reducing boilerplate gpa->gfn conversions at all call sites.

No actual harm has been done yet as all of the call sites are correctly
passing in a gfn.

No functional change intended. All changes are compile-tested on x86 and
ppc, which are the current users of these APIs.

---

v1 -> v2:
- Rebased on top of latest kvm.git#master
- As suggested by Yosry, refactor the APIs to reduce boilerplate code
at call sites

v1: https://lore.kernel.org/kvm/20260325092001.613025-1-peter.fang@intel.com/

Peter Fang (3):
KVM: Fix kvm_vcpu_map[_readonly]() function prototypes
KVM: Move page mapping/unmapping APIs in kvm_host.h
KVM: Take gpa_t in kvm_vcpu_map[_readonly]()

arch/powerpc/kvm/book3s_pr.c | 2 +-
arch/x86/kvm/svm/nested.c | 4 ++--
arch/x86/kvm/svm/sev.c | 2 +-
arch/x86/kvm/svm/svm.c | 8 +++----
arch/x86/kvm/vmx/nested.c | 11 ++++-----
include/linux/kvm_host.h | 46 ++++++++++++++++++------------------
6 files changed, 36 insertions(+), 37 deletions(-)

base-commit: df83746075778958954aa0460cca55f4b3fc9c02
--
2.53.0