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From: Yan Zhao <yan.y.zhao@intel.com>
To: pbonzini@redhat.com, seanjc@google.com, kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, rick.p.edgecombe@intel.com,
	kai.huang@intel.com, adrian.hunter@intel.com,
	reinette.chatre@intel.com, xiaoyao.li@intel.com,
	tony.lindgren@intel.com, binbin.wu@linux.intel.com,
	dmatlack@google.com, isaku.yamahata@intel.com,
	isaku.yamahata@gmail.com
Subject: [PATCH 5/7] fixup! KVM: TDX: Implement hooks to propagate changes of TDP MMU mirror page table
Date: Mon, 13 Jan 2025 10:13:00 +0800	[thread overview]
Message-ID: <20250113021301.18962-1-yan.y.zhao@intel.com> (raw)
In-Reply-To: <20250113020925.18789-1-yan.y.zhao@intel.com>

Return -EBUSY instead of -EAGAIN when tdh_mem_sept_add() encounters any err
of TDX_OPERAND_BUSY.

Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
---
 arch/x86/kvm/vmx/tdx.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c
index 09677a4cd605..4fb9faca5db2 100644
--- a/arch/x86/kvm/vmx/tdx.c
+++ b/arch/x86/kvm/vmx/tdx.c
@@ -1740,8 +1740,9 @@ int tdx_sept_link_private_spt(struct kvm *kvm, gfn_t gfn,
 
 	err = tdh_mem_sept_add(to_kvm_tdx(kvm)->tdr_pa, gpa, tdx_level, hpa, &entry,
 			       &level_state);
-	if (unlikely(err == TDX_ERROR_SEPT_BUSY))
-		return -EAGAIN;
+	if (unlikely(err & TDX_OPERAND_BUSY))
+		return -EBUSY;
+
 	if (KVM_BUG_ON(err, kvm)) {
 		pr_tdx_error_2(TDH_MEM_SEPT_ADD, err, entry, level_state);
 		return -EIO;
-- 
2.43.2


  parent reply	other threads:[~2025-01-13  2:13 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-13  2:09 [PATCH 0/7] KVM: TDX SEPT SEAMCALL retry Yan Zhao
2025-01-13  2:10 ` [PATCH 1/7] KVM: TDX: Return -EBUSY when tdh_mem_page_add() encounters TDX_OPERAND_BUSY Yan Zhao
2025-01-14 22:24   ` Edgecombe, Rick P
2025-01-15  4:59     ` Yan Zhao
2025-01-13  2:11 ` [PATCH 2/7] KVM: x86/mmu: Return RET_PF* instead of 1 in kvm_mmu_page_fault() Yan Zhao
2025-01-14 22:24   ` Edgecombe, Rick P
2025-01-15  4:58     ` Yan Zhao
2025-01-13  2:12 ` [PATCH 3/7] KVM: TDX: Retry locally in TDX EPT violation handler on RET_PF_RETRY Yan Zhao
2025-01-17 21:14   ` Sean Christopherson
2025-01-20  8:05     ` Yan Zhao
2025-01-25  1:23       ` Sean Christopherson
2025-01-27  9:24         ` Yan Zhao
2025-01-27 17:04           ` Sean Christopherson
2025-02-05  7:34             ` Yan Zhao
2025-01-13  2:12 ` [PATCH 4/7] KVM: TDX: Kick off vCPUs when SEAMCALL is busy during TD page removal Yan Zhao
2025-01-16  6:23   ` Binbin Wu
2025-01-16  6:28     ` Binbin Wu
2025-01-16  8:18     ` Yan Zhao
2025-01-13  2:13 ` Yan Zhao [this message]
2025-01-16  6:30   ` [PATCH 5/7] fixup! KVM: TDX: Implement hooks to propagate changes of TDP MMU mirror page table Binbin Wu
2025-01-13  2:13 ` [PATCH 6/7] " Yan Zhao
2025-01-13  2:13 ` [PATCH 7/7] fixup! KVM: TDX: Implement TDX vcpu enter/exit path Yan Zhao
2025-01-14 22:27 ` [PATCH 0/7] KVM: TDX SEPT SEAMCALL retry Edgecombe, Rick P
2025-01-15 16:43 ` Paolo Bonzini
2025-01-16  0:52   ` Yan Zhao
2025-01-16 11:07     ` Paolo Bonzini
2025-01-17  9:52       ` Yan Zhao

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