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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-02 15:57:03 -0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 17:58:40 +0100 |
| commit | 703c335d06934401763863cf24fee61a13de055b (patch) | |
| tree | 7b512a0b2e833aa9a9249e088e07d1ff54aa5cc1 /arch/x86/kvm/svm.c | |
| parent | bde7723559586d6afd18fa1717fc143531d4c77d (diff) | |
| download | lwn-703c335d06934401763863cf24fee61a13de055b.tar.gz lwn-703c335d06934401763863cf24fee61a13de055b.zip | |
KVM: x86/mmu: Configure max page level during hardware setup
Configure the max page level during hardware setup to avoid a retpoline
in the page fault handler. Drop ->get_lpage_level() as the page fault
handler was the last user.
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 422ee02afe8c..5e3261ec8c59 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1458,7 +1458,7 @@ static __init int svm_hardware_setup(void) if (npt_enabled && !npt) npt_enabled = false; - kvm_configure_mmu(npt_enabled); + kvm_configure_mmu(npt_enabled, PT_PDPE_LEVEL); pr_info("kvm: Nested Paging %sabled\n", npt_enabled ? "en" : "dis"); if (nrips) { @@ -6064,11 +6064,6 @@ static void svm_set_supported_cpuid(struct kvm_cpuid_entry2 *entry) } } -static int svm_get_lpage_level(void) -{ - return PT_PDPE_LEVEL; -} - static bool svm_has_wbinvd_exit(void) { return true; @@ -7426,8 +7421,6 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .get_exit_info = svm_get_exit_info, - .get_lpage_level = svm_get_lpage_level, - .cpuid_update = svm_cpuid_update, .set_supported_cpuid = svm_set_supported_cpuid, |