linux-kernel - [PATCH 1/1] KVM: use KVM_HVA_ERR

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Message-Id: <20240229212522.34515-1-dongli.zhang@oracle.com>
Date: Thu, 29 Feb 2024 13:25:22 -0800
From: Dongli Zhang <dongli.zhang@...cle.com>
To: kvm@...r.kernel.org
Cc: pbonzini@...hat.com, linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] KVM: use KVM_HVA_ERR_BAD to check bad hva

Replace PAGE_OFFSET with KVM_HVA_ERR_BAD, to facilitate the cscope when
looking for where KVM_HVA_ERR_BAD is used.

Every time I use cscope to query the functions that are impacted by the
return value (KVM_HVA_ERR_BAD) of __gfn_to_hva_many(), I may miss
kvm_is_error_hva().

Signed-off-by: Dongli Zhang <dongli.zhang@...cle.com>
---
 include/linux/kvm_host.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 7e7fd25b09b3..4dc0300e7766 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -143,7 +143,7 @@ static inline bool is_noslot_pfn(kvm_pfn_t pfn)
 
 static inline bool kvm_is_error_hva(unsigned long addr)
 {
-	return addr >= PAGE_OFFSET;
+	return addr >= KVM_HVA_ERR_BAD;
 }
 
 #endif
-- 
2.34.1