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[31.30.173.16]) by smtp.gmail.com with ESMTPSA id s11-20020a056402164b00b00504adfd77f6sm5589213edx.29.2023.04.17.03.34.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Apr 2023 03:34:11 -0700 (PDT) From: Andrew Jones To: kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, virtualization@lists.linux-foundation.org Cc: 'Paul Walmsley ' , 'Albert Ou ' , 'Palmer Dabbelt ' , 'Paolo Bonzini ' , 'Juergen Gross ' , "'Srivatsa S . Bhat '" , 'Anup Patel ' , 'Atish Patra ' Subject: [RFC PATCH 02/14] RISC-V: Add SBI STA extension definitions Date: Mon, 17 Apr 2023 12:33:50 +0200 Message-Id: <20230417103402.798596-3-ajones@ventanamicro.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230417103402.798596-1-ajones@ventanamicro.com> References: <20230417103402.798596-1-ajones@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230417_033413_677681_126CC66A X-CRM114-Status: UNSURE ( 7.84 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The SBI STA extension enables steal-time accounting. Add the definitions it specifies. Signed-off-by: Andrew Jones --- arch/riscv/include/asm/sbi.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 945b7be249c1..485b9ec20399 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -30,6 +30,7 @@ enum sbi_ext_id { SBI_EXT_HSM = 0x48534D, SBI_EXT_SRST = 0x53525354, SBI_EXT_PMU = 0x504D55, + SBI_EXT_STA = 0x535441, /* Experimentals extensions must lie within this range */ SBI_EXT_EXPERIMENTAL_START = 0x08000000, @@ -236,6 +237,20 @@ enum sbi_pmu_ctr_type { /* Flags defined for counter stop function */ #define SBI_PMU_STOP_FLAG_RESET (1 << 0) +/* SBI STA (steal-time accounting) extension */ +enum sbi_ext_sta_fid { + SBI_EXT_STA_SET_STEAL_TIME_SHMEM = 0, +}; + +struct sbi_sta_struct { + __le32 sequence; + __le32 flags; + __le64 steal; + u8 preempted; + u8 pad[47]; +} __packed; + +/* SBI spec version fields */ #define SBI_SPEC_VERSION_DEFAULT 0x1 #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 #define SBI_SPEC_VERSION_MAJOR_MASK 0x7f -- 2.39.2 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv