[PATCH v4 03/17] KVM: TDX: Reset private huge pages after S-EPT page removal

[Yan Zhao]

"Resetting" TDX pages is a workaround for the TDX_PW_MCE erratum. Once a
leaf SPTE can map to a huge page in the S-EPT, the entire huge physical
range, rather than just the first 4KB, needs to be reset before the host
can reuse it.

Signed-off-by: Yan Zhao <yan.y.zhao@xxxxxxxxx>
---
 arch/x86/kvm/vmx/tdx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c
index 410c149bf776..11792a490330 100644
--- a/arch/x86/kvm/vmx/tdx.c
+++ b/arch/x86/kvm/vmx/tdx.c
@@ -1865,7 +1865,7 @@ static int tdx_sept_remove_leaf_spte(struct kvm *kvm, gfn_t gfn,
 	if (TDX_BUG_ON_2(err, TDH_MEM_PAGE_REMOVE, entry, level_state, kvm))
 		return -EIO;
 
-	tdx_quirk_reset_paddr(PFN_PHYS(pfn), PAGE_SIZE);
+	tdx_quirk_reset_paddr(PFN_PHYS(pfn), KVM_HPAGE_SIZE(level));
 	tdx_pamt_put(pfn, level);
 	return 0;
 }
-- 
2.43.2