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(unknown [180.111.103.148]) by APP-05 (Coremail) with SMTP id zQCowACXf7ox4kdnU1gcBg--.779S2; Thu, 28 Nov 2024 11:23:29 +0800 (CST) From: zhouquan@iscas.ac.cn To: anup@brainfault.org, ajones@ventanamicro.com, atishp@atishpatra.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu Cc: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, Quan Zhou Subject: [PATCH 1/4] RISC-V: KVM: Allow Svvptc extension for Guest/VM Date: Thu, 28 Nov 2024 11:21:15 +0800 Message-Id: <35d9c91a69ebcb81b40dc4f7f51e290c3d94b2d9.1732762121.git.zhouquan@iscas.ac.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-CM-TRANSID: zQCowACXf7ox4kdnU1gcBg--.779S2 X-Coremail-Antispam: 1UD129KBjvJXoWxJr4DGr47AFy3ZFWrZF13Jwb_yoW8Wr4fpr s5CFZ3Cr45u34fC392y34Dur48G3y5Wws0kw47ur48JryYyry8JF1DA3W3GF1DJay0qry0 9F1fWr109ws0yr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBY14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26r4j6ryUM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26F4j 6r4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6xkF7I0E14v26F 4UJVW0owAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv 7VC0I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Cr0_Gr1UMcvjeVCFs4IE7xkEbV WUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7Cj xVA2Y2ka0xkIwI1lw4CEc2x0rVAKj4xxMxkF7I0En4kS14v26r1q6r43MxAIw28IcxkI7V AKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCj r7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6x IIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAI w20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x 0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VU1aFAJUUUUU== X-Originating-IP: [180.111.103.148] X-CM-SenderInfo: 52kr31xxdqqxpvfd2hldfou0/1tbiBwkPBmdHkkDi0AAAsH X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241127_192335_928935_B2D64E24 X-CRM114-Status: UNSURE ( 6.45 ) 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: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Quan Zhou Extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Svvptc extension for Guest/VM. Signed-off-by: Quan Zhou Reviewed-by: Andrew Jones --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu_onereg.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 4f24201376b1..9db33f52f56e 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -177,6 +177,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZAWRS, KVM_RISCV_ISA_EXT_SMNPM, KVM_RISCV_ISA_EXT_SSNPM, + KVM_RISCV_ISA_EXT_SVVPTC, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 5b68490ad9b7..67965feb5b74 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -41,6 +41,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(SSNPM), KVM_ISA_EXT_ARR(SSTC), KVM_ISA_EXT_ARR(SVINVAL), + KVM_ISA_EXT_ARR(SVVPTC), KVM_ISA_EXT_ARR(SVNAPOT), KVM_ISA_EXT_ARR(SVPBMT), KVM_ISA_EXT_ARR(ZACAS), @@ -135,6 +136,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_SSNPM: case KVM_RISCV_ISA_EXT_SSTC: case KVM_RISCV_ISA_EXT_SVINVAL: + case KVM_RISCV_ISA_EXT_SVVPTC: case KVM_RISCV_ISA_EXT_SVNAPOT: case KVM_RISCV_ISA_EXT_ZACAS: case KVM_RISCV_ISA_EXT_ZAWRS: