Re: [PATCH v2 0/2] RISC-V: KVM: Optimize hfence request handling for SMP guests

Anup Patel <[email protected]> Fri, 31 Jul 2026 11:26:53 +0530
Newsgroups org.infradead.lists.kvm-riscv,org.infradead.lists.linux-riscv,org.kernel.vger.kvm,org.kernel.vger.linux-kernel
Message-ID <CAAhSdy3bBQTwj80cmBvWYfqWgO1e8_Y85x=QG46UamGEbYy+UQ@mail.gmail.com>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