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[46.204.101.131]) by smtp.gmail.com with ESMTPSA id q16-20020a1709060e5000b008b980c3e013sm3970187eji.179.2023.03.16.07.39.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Mar 2023 07:39:40 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 62d3d3dc-c408-11ed-b464-930f4c7d94ae DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1678977581; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=L+oNxTKcsx1V4FRFzCufKSsxTMBMI/DOdCYZTlMD0WU=; b=OH3IkYV0idjDWqvJYDmmV43va+dtXqyIM4tpTxwUbU6gSX28jZMbjvEl7q2by1s49w Grg/qo/bi8/O2PhNxTBva3I2G9vqCDoi4UsPF7BFQLW5J4o68ZRR1lUGnzNIUWP0RS9N 4JDmQpOIIGWFVMKqLd0XITZBS0sT1UJhOEeN5eK15wdb4GpGk/LYzfAa6Q5BswX5sr0p KzOibXQLdAv1+yItdnXPj7jP7CmMC7GwnFB8XHyhdHrhdlP+Y9RgvOT+0GC3o5TZ75PC gajqhsqpyCoDv7japRrDgGU7Rf9cIkWCxM41qqaZsSKfSxxOfMCsVGlldcbAZPoQ/8iL pRlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678977581; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=L+oNxTKcsx1V4FRFzCufKSsxTMBMI/DOdCYZTlMD0WU=; b=B6VX7xLuOZTEM1qDetAfuK9OXFTO4IIs/leOIR05VAg0PSURW2DDMsxm63+mDmtfVN qAvxHwLGE6/OgXm74fofHkNJ9irJKJ8UfsjyJ+pcx4ODcxYkf2nlmaBVKpbvsWLR8QEy 278+LLMGJho0mpgKprEc/rmdbRVLuuji6uOU5vlfhoLHKl1Jy7wPrhzK3cngfsrQifOo CZLLkq+kKdedYHPQSseBveR1vsjHS4thou/0NV5f71LONNhf6MJcNvqz5C+HEyLFAfUC sMYzv1m1beUO52WagJHivPUIKQARb9jdUtDr0EJCP/jehtoDjtflWtowYaUEjxevcb6f XTnQ== X-Gm-Message-State: AO0yUKX4SbXrmeK/ew6Ch3zDp2bAAtP7xyUS0RRkhyAwaHVO+Sq2p+R0 2YNMAc6nD3o/YJL+tpX/JQ0026C6XptNUg== X-Google-Smtp-Source: AK7set94yAmmz9NW6r6NpoX2YsE+xbesnwj+czE9vNO9NPnxwu0LyVkJ20ICj5GIYnHciAFmB7rY8A== X-Received: by 2002:a17:907:7283:b0:92f:e4c5:5a28 with SMTP id dt3-20020a170907728300b0092fe4c55a28mr5146754ejc.54.1678977581092; Thu, 16 Mar 2023 07:39:41 -0700 (PDT) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Julien Grall , Jan Beulich , Andrew Cooper , Stefano Stabellini , Gianluca Guida , Oleksii Kurochko , Bob Eshleman , Alistair Francis , Connor Davis Subject: [PATCH v5 5/7] xen/riscv: introduce trap_init() Date: Thu, 16 Mar 2023 16:39:27 +0200 Message-Id: <91b0284d20f530f2795a119ccb7436ee0b800256.1678976127.git.oleksii.kurochko@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1678977601687100008 Content-Type: text/plain; charset="utf-8" Signed-off-by: Oleksii Kurochko Reviewed-by: Alistair Francis --- Changes in V5: - Nothing changed --- Changes in V4: - Nothing changed --- Changes in V3: - Nothing changed --- Changes in V2: - Rename setup_trap_handler() to trap_init(). - Add Reviewed-by to the commit message. --- xen/arch/riscv/include/asm/traps.h | 1 + xen/arch/riscv/setup.c | 5 +++++ xen/arch/riscv/traps.c | 7 +++++++ 3 files changed, 13 insertions(+) diff --git a/xen/arch/riscv/include/asm/traps.h b/xen/arch/riscv/include/as= m/traps.h index f3fb6b25d1..f1879294ef 100644 --- a/xen/arch/riscv/include/asm/traps.h +++ b/xen/arch/riscv/include/asm/traps.h @@ -7,6 +7,7 @@ =20 void do_trap(struct cpu_user_regs *cpu_regs); void handle_trap(void); +void trap_init(void); =20 #endif /* __ASSEMBLY__ */ =20 diff --git a/xen/arch/riscv/setup.c b/xen/arch/riscv/setup.c index 36556eb779..b44d105b5f 100644 --- a/xen/arch/riscv/setup.c +++ b/xen/arch/riscv/setup.c @@ -3,7 +3,9 @@ #include =20 #include +#include #include +#include =20 /* Xen stack for bringing up the first CPU. */ unsigned char __initdata cpu0_boot_stack[STACK_SIZE] @@ -32,7 +34,10 @@ void __init noreturn start_xen(unsigned long bootcpu_id, =20 fill_boot_info(); =20 + trap_init(); + early_printk("All set up\n"); + for ( ;; ) asm volatile ("wfi"); =20 diff --git a/xen/arch/riscv/traps.c b/xen/arch/riscv/traps.c index 8a1529e0c5..581f34efbc 100644 --- a/xen/arch/riscv/traps.c +++ b/xen/arch/riscv/traps.c @@ -13,6 +13,13 @@ #include #include =20 +void trap_init(void) +{ + unsigned long addr =3D (unsigned long)&handle_trap; + + csr_write(CSR_STVEC, addr); +} + static const char *decode_trap_cause(unsigned long cause) { static const char *const trap_causes[] =3D { --=20 2.39.2