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KVM: VMX: Move nested_mark_vmcs12_pages_dirty() to vmx.c, and rename

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Move nested_mark_vmcs12_pages_dirty() to vmx.c now that it's only used in
the VM-Exit path, and add "all" to its name to document that its purpose
is to mark all (mapped-out-of-band) vmcs12 pages as dirty.

No functional change intended.

Link: https://patch.msgid.link/20251121223444.355422-5-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson 2025-11-21 14:34:43 -08:00
parent f74bb1d2ed
commit 57dfa61f62
2 changed files with 13 additions and 14 deletions
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13
arch/x86/kvm/vmx/nested.c
View File

@ -3981,19 +3981,6 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
}
}
void nested_mark_vmcs12_pages_dirty(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
/*
* Don't need to mark the APIC access page dirty; it is never
* written to by the CPU during APIC virtualization.
*/
kvm_vcpu_map_mark_dirty(vcpu, &vmx->nested.virtual_apic_map);
kvm_vcpu_map_mark_dirty(vcpu, &vmx->nested.pi_desc_map);
}
static int vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);

14
arch/x86/kvm/vmx/vmx.c
View File

@ -6378,6 +6378,18 @@ static void vmx_flush_pml_buffer(struct kvm_vcpu *vcpu)
vmcs_write16(GUEST_PML_INDEX, PML_HEAD_INDEX);
}
static void nested_vmx_mark_all_vmcs12_pages_dirty(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
/*
* Don't need to mark the APIC access page dirty; it is never
* written to by the CPU during APIC virtualization.
*/
kvm_vcpu_map_mark_dirty(vcpu, &vmx->nested.virtual_apic_map);
kvm_vcpu_map_mark_dirty(vcpu, &vmx->nested.pi_desc_map);
}
static void vmx_dump_sel(char *name, uint32_t sel)
{
pr_err("%s sel=0x%04x, attr=0x%05x, limit=0x%08x, base=0x%016lx\n",
@ -6655,7 +6667,7 @@ static int __vmx_handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)
* Mark them dirty on every exit from L2 to prevent them from
* getting out of sync with dirty tracking.
*/
nested_mark_vmcs12_pages_dirty(vcpu);
nested_vmx_mark_all_vmcs12_pages_dirty(vcpu);
/*
* Synthesize a triple fault if L2 state is invalid. In normal