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KVM: x86: Move eager_page_split to mmu.{c,h}

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Move KVM's eager_page_split module param to the MMU, as it is very much an
MMU knob.

No functional change intended.

Reviewed-by: Kai Huang <kai.huang@intel.com>
Reviewed-by: Yosry Ahmed <yosry@kernel.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Message-ID: <20260613000329.732085-10-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2026-06-12 17:03:08 -07:00 committed by Paolo Bonzini
parent af0dbcaaa2
commit cde542b652
4 changed files with 4 additions and 5 deletions
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1
arch/x86/kvm/mmu.h
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@ -13,6 +13,7 @@ extern bool tdp_mmu_enabled;
#define tdp_mmu_enabled false
#endif
extern bool __read_mostly enable_mmio_caching;
extern bool eager_page_split;
#define PT_WRITABLE_SHIFT 1
#define PT_USER_SHIFT 2

3
arch/x86/kvm/mmu/mmu.c
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@ -114,6 +114,9 @@ module_param_named(tdp_mmu, tdp_mmu_enabled, bool, 0444);
EXPORT_SYMBOL_FOR_KVM_INTERNAL(tdp_mmu_enabled);
#endif
bool __read_mostly eager_page_split = true;
module_param(eager_page_split, bool, 0644);
static int max_huge_page_level __read_mostly;
static int tdp_root_level __read_mostly;
static int max_tdp_level __read_mostly;

3
arch/x86/kvm/x86.c
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@ -177,9 +177,6 @@ module_param(force_emulation_prefix, int, 0644);
int __read_mostly pi_inject_timer = -1;
module_param(pi_inject_timer, bint, 0644);
bool __read_mostly eager_page_split = true;
module_param(eager_page_split, bool, 0644);
/* Enable/disable SMT_RSB bug mitigation */
static bool __read_mostly mitigate_smt_rsb;
module_param(mitigate_smt_rsb, bool, 0444);

2
arch/x86/kvm/x86.h
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@ -415,8 +415,6 @@ extern int pi_inject_timer;
extern bool report_ignored_msrs;
extern bool eager_page_split;
static inline void kvm_pr_unimpl_wrmsr(struct kvm_vcpu *vcpu, u32 msr, u64 data)
{
if (report_ignored_msrs)