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Wed, 19 Apr 2023 15:18:51 -0700 (PDT) Received: from atishp.ba.rivosinc.com ([66.220.2.162]) by smtp.gmail.com with ESMTPSA id jn11-20020a170903050b00b00196807b5189sm11619190plb.292.2023.04.19.15.18.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Apr 2023 15:18:51 -0700 (PDT) From: Atish Patra To: linux-kernel@vger.kernel.org Cc: Rajnesh Kanwal , Atish Patra , Alexandre Ghiti , Andrew Jones , Andrew Morton , Anup Patel , Atish Patra , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Suzuki K Poulose , Will Deacon , Marc Zyngier , Sean Christopherson , linux-coco@lists.linux.dev, Dylan Reid , abrestic@rivosinc.com, Samuel Ortiz , Christoph Hellwig , Conor Dooley , Greg Kroah-Hartman , Guo Ren , Heiko Stuebner , Jiri Slaby , kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mayuresh Chitale , Palmer Dabbelt , Paolo Bonzini , Paul Walmsley , Uladzislau Rezki Subject: [RFC 37/48] RISC-V: Add COVG SBI extension definitions Date: Wed, 19 Apr 2023 15:17:05 -0700 Message-Id: <20230419221716.3603068-38-atishp@rivosinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230419221716.3603068-1-atishp@rivosinc.com> References: <20230419221716.3603068-1-atishp@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: C3D4FC001F X-Rspamd-Server: rspam01 X-Stat-Signature: 7w16kpxuaybbijyyq5a9pxmnzhzdibxw X-HE-Tag: 1681942732-742513 X-HE-Meta: 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 IdFam9kx kTGsBwFYHAUXbvKNJIUVZ/82gZiBCo43eRb0XWSM/2vRrfLJLA/yLYMLdIAK4eoYWLH6rM1yuAJVqj8vs5vfV7xlB2w5ApKJUQ9RxiAWjKasNj2Cg2T/6goKU4LnrqaePo9Y2cXjx5iIXjGb6980oSz5UZsd0zCIhVT1WSJrnK3xbAOLwXfkqlo89122AZY3ZmMsblyB2zQkRaApVFok7aFAgT92nwqmlKRG3i695Wt0aPELyH0T4bXBx4KQi8vqNrWyvz83oafPKXL3rJ7DDTTy9vXhD50SZeNiwvG4QRuB4jiLve3xWtVj1h3mZv3tZKzcDnW/H3zbnlODJQupuSlGba1+FvVaWOwI0dWeARVgdbnKsCB7wXU/q1Difh3rqvnzVEmW5LACdz4lYr5hx8CDwV8ZBxXCV9W0DnxQEo8gxGHvgoUVyOJ0/rm+KVej6PpXgJQxhM7xECAtZJ7yBlcKMxg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Rajnesh Kanwal CoVE specification defines a separate SBI extension known as CoVG for the guest side interface. Add the definitions for that extension. Signed-off-by: Rajnesh Kanwal Signed-off-by: Atish Patra --- arch/riscv/include/asm/sbi.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index bbea922..e02ee75 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -34,6 +34,7 @@ enum sbi_ext_id { SBI_EXT_NACL = 0x4E41434C, SBI_EXT_COVH = 0x434F5648, SBI_EXT_COVI = 0x434F5649, + SBI_EXT_COVG = 0x434F5647, /* Experimentals extensions must lie within this range */ SBI_EXT_EXPERIMENTAL_START = 0x08000000, @@ -439,6 +440,16 @@ struct sbi_cove_tvm_aia_params { uint32_t guests_per_hart; }; +/* SBI COVG extension data structures */ +enum sbi_ext_covg_fid { + SBI_EXT_COVG_ADD_MMIO_REGION, + SBI_EXT_COVG_REMOVE_MMIO_REGION, + SBI_EXT_COVG_SHARE_MEMORY, + SBI_EXT_COVG_UNSHARE_MEMORY, + SBI_EXT_COVG_ALLOW_EXT_INTERRUPT, + SBI_EXT_COVG_DENY_EXT_INTERRUPT, +}; + #define SBI_SPEC_VERSION_DEFAULT 0x1 #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 #define SBI_SPEC_VERSION_MAJOR_MASK 0x7f -- 2.25.1