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| author | Will Deacon <will@kernel.org> | 2019-10-17 22:42:42 +0200 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2019-10-17 22:42:42 +0200 |
| commit | 777d062e5bee0e3c0751cdcbce116a76ee2310ec (patch) | |
| tree | c63aada7db4af337a1077d75d4ac1d021393d378 /arch/x86/kvm/vmx/vmx.c | |
| parent | arm64: tags: Preserve tags for addresses translated via TTBR1 (diff) | |
| parent | arm64: Allow CAVIUM_TX2_ERRATUM_219 to be selected (diff) | |
| download | linux-777d062e5bee0e3c0751cdcbce116a76ee2310ec.tar.xz linux-777d062e5bee0e3c0751cdcbce116a76ee2310ec.zip | |
Merge branch 'errata/tx2-219' into for-next/fixes
Workaround for Cavium/Marvell ThunderX2 erratum #219.
* errata/tx2-219:
arm64: Allow CAVIUM_TX2_ERRATUM_219 to be selected
arm64: Avoid Cavium TX2 erratum 219 when switching TTBR
arm64: Enable workaround for Cavium TX2 erratum 219 when running SMT
arm64: KVM: Trap VM ops when ARM64_WORKAROUND_CAVIUM_TX2_219_TVM is set
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index d4575ffb3cec..e7970a2e8eae 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -209,6 +209,11 @@ static int vmx_setup_l1d_flush(enum vmx_l1d_flush_state l1tf) struct page *page; unsigned int i; + if (!boot_cpu_has_bug(X86_BUG_L1TF)) { + l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_NOT_REQUIRED; + return 0; + } + if (!enable_ept) { l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_EPT_DISABLED; return 0; @@ -7995,12 +8000,10 @@ static int __init vmx_init(void) * contain 'auto' which will be turned into the default 'cond' * mitigation mode. */ - if (boot_cpu_has(X86_BUG_L1TF)) { - r = vmx_setup_l1d_flush(vmentry_l1d_flush_param); - if (r) { - vmx_exit(); - return r; - } + r = vmx_setup_l1d_flush(vmentry_l1d_flush_param); + if (r) { + vmx_exit(); + return r; } #ifdef CONFIG_KEXEC_CORE |