Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Xing Li <lixing@loongson.cn>
To:     Ralf Baechle <ralf@linux-mips.org>,
        Paul Burton <paulburton@kernel.org>
Cc:     linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] KVM: MIPS: Fixup VPN2_MASK definition over 32bits virtual address
Date:   Fri, 10 Jan 2020 17:08:39 +0800
Message-Id: <1578647320-14391-2-git-send-email-lixing@loongson.cn>
In-Reply-To: <1578647320-14391-1-git-send-email-lixing@loongson.cn>
References: <1578647320-14391-1-git-send-email-lixing@loongson.cn>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

If the cpu support more than 32bits vmbits, VPN2_MASK set to fixed
0xffffe000 will lead to wrong entryhi for _kvm_mips_host_tlb_inv

Signed-off-by: Xing Li <lixing@loongson.cn>
---
 arch/mips/include/asm/kvm_host.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 6be70d5..ce9546c 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -274,7 +274,12 @@ enum emulation_result {
 #define MIPS3_PG_SHIFT		6
 #define MIPS3_PG_FRAME		0x3fffffc0
 
+#if defined(CONFIG_64BIT)
+#define VPN2_MASK		(((1UL << cpu_vmbits) - 1) &	\
+						   0x3fffffffffffe000UL)
+#else
 #define VPN2_MASK		0xffffe000
+#endif
 #define KVM_ENTRYHI_ASID	cpu_asid_mask(&current_cpu_data)
 #define TLB_IS_GLOBAL(x)	((x).tlb_lo[0] & (x).tlb_lo[1] & ENTRYLO_G)
 #define TLB_VPN2(x)		((x).tlb_hi & VPN2_MASK)
-- 
2.1.0