linux-kernel - [PATCH v2 1/3] KVM: MIPS: Change KVM_ENTRYHI_ASID to cpu_asid_mask(&current_cpu

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Date:   Mon, 13 Jan 2020 12:39:06 +0800
From:   Xing Li <lixing@...ngson.cn>
To:     Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paulburton@...nel.org>,
        James Hogan <jhogan@...nel.org>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/3] KVM: MIPS: Change KVM_ENTRYHI_ASID to cpu_asid_mask(&current_cpu_data)

The code in decode_config4 of arch/mips/kernel/cpu-probe.c

        asid_mask = MIPS_ENTRYHI_ASID;
        if (config4 & MIPS_CONF4_AE)
                asid_mask |= MIPS_ENTRYHI_ASIDX;
        set_cpu_asid_mask(c, asid_mask);

set asid_mask to cpuinfo->asid_mask

So KVM_ENTRYHI_ASID should change to cpu_asid_mask(&current_cpu_data)
for support 10bits ASID_MASK

Signed-off-by: Xing Li <lixing@...ngson.cn>
---
 arch/mips/include/asm/kvm_host.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 41204a4..6be70d5 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -275,7 +275,7 @@ enum emulation_result {
 #define MIPS3_PG_FRAME		0x3fffffc0
 
 #define VPN2_MASK		0xffffe000
-#define KVM_ENTRYHI_ASID	MIPS_ENTRYHI_ASID
+#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)
 #define TLB_ASID(x)		((x).tlb_hi & KVM_ENTRYHI_ASID)
-- 
2.1.0