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From:   Atish Patra <atishp@rivosinc.com>
To:     linux-kernel@vger.kernel.org
Cc:     Atish Patra <atishp@rivosinc.com>, Alexandre Ghiti <alex@ghiti.fr>,
        Andrew Jones <ajones@ventanamicro.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Anup Patel <anup@brainfault.org>,
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Subject: [RFC 14/48] RISC-V: KVM: Skip dirty logging updates for TVM
Date:   Wed, 19 Apr 2023 15:16:42 -0700
Message-Id: <20230419221716.3603068-15-atishp@rivosinc.com>
In-Reply-To: <20230419221716.3603068-1-atishp@rivosinc.com>
References: <20230419221716.3603068-1-atishp@rivosinc.com>
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The CoVE doesn't support dirty logging for TVMs yet.
Skip for now.

Signed-off-by: Atish Patra <atishp@rivosinc.com>
---
 arch/riscv/kvm/mmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c
index 9693897..1d5e4ed 100644
--- a/arch/riscv/kvm/mmu.c
+++ b/arch/riscv/kvm/mmu.c
@@ -457,6 +457,9 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
 				const struct kvm_memory_slot *new,
 				enum kvm_mr_change change)
 {
+	/* We don't support dirty logging for CoVE guests yet */
+	if (is_cove_vm(kvm))
+		return;
 	/*
 	 * At this point memslot has been committed and there is an
 	 * allocated dirty_bitmap[], dirty pages will be tracked while
-- 
2.25.1