From nobody Wed May 15 07:02:58 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=syntacore.com ARC-Seal: i=1; a=rsa-sha256; t=1711544313; cv=none; d=zohomail.com; s=zohoarc; b=Eny/EJSLyGqkFT6jqHH1D7g77QDz5aULj7FytVdkWTYwYQibQALu1EWxZAkYjJQtCY+gSQN39WwuE1YZIlLTSciHwAe7Gb6f2feREKkS+pElfSwX5nrMCEIS5hG0xz4XwbJE9D8Ezty6qRGhBoiu2xP89AWEg31+vV3gduz4L8g= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1711544313; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=igXJmAQBRIraB7SXsgsS6/LWmhtuqbDlP7Kfi3hiOhg=; b=hysQa1R68kcUMSdfeaIVJWNbzBYA2zyJngkjnMD/uxmz12VqJvCK3xqsuFpbDNGr+0ov/hRVoRHAzKrsRT9FreKeR7YHKPa1IQm8Gf9QPKAgAW9lN6ozcv13BnH/HNc0V3y2SuxmMtLCAR/I4h9fKFZFmQw98OYWL20NH1rYvag= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 171154431301055.69799942229133; Wed, 27 Mar 2024 05:58:33 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rpSqk-00063Y-4E; Wed, 27 Mar 2024 08:57:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rpSqh-00060k-Ql; Wed, 27 Mar 2024 08:57:47 -0400 Received: from mta-04.yadro.com ([89.207.88.248]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rpSqf-0007Vg-Dj; Wed, 27 Mar 2024 08:57:47 -0400 DKIM-Filter: OpenDKIM Filter v2.11.0 mta-04.yadro.com 09E2EC000E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=syntacore.com; s=mta-04; t=1711544261; bh=igXJmAQBRIraB7SXsgsS6/LWmhtuqbDlP7Kfi3hiOhg=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=a/TpLrqhTwvq5S7a+fC/8MxDQU0UMC3MLsOr6j7DmukAOf6QGyjDQOeiznduPX/eb 9GSS98vUxf068MOvndslhBZtLfFmwrTStvY48BAsP4ElrqCx9d6b7JXwhmKW9f5m6k mK9PeIKFwq6ETNwYUFnYmBAg/0GYuFD0Ib30qBfOSuYOrKN/JwPDy3116bkXpu0Le8 dMV51tzbVnI8QEXI/XzFzWEL2LyiPmYSqYTSQe4XTlyEDVJ4+6qB2uuupj8GlB8Vl1 8J0eDX8pT3ShIpEPe+Kcr9ueZPBi/3Jn1hSTVgAV3ibU79FruAk3f2KwX+XXgPiNGg 4Xq63ztsEtAKg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=syntacore.com; s=mta-03; t=1711544261; bh=igXJmAQBRIraB7SXsgsS6/LWmhtuqbDlP7Kfi3hiOhg=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=UxIg30cK/PhdGXdGnev2pOE4YJMGMUE//4F2sE0LdeR/FjEgbRN82/DdisTDiCNDV /Uq9K0vxO/rog7/9ex1o/gjxr0X9eLOcAmWYFOLR81xyzbkYumAypQjWr81Y2XwuzP lVuu/RW7qpT+VqLCo4YIvkKpZvM/tV4ke4la1avrc3WRCqU4s2RbAa0SGAz9VBkCA1 9pt7LFksQlh5nx4tnjTbskE1Hk2JpuCg98DVWmQRvFmm1NIx18aFPX85Bfxu/vj1l/ EqopWoYCwbVOGV1OzW5tKchqXXPWxxax5LwXOYE8vY5pSqodjjp+b4sWiadZAjUUvD T/U1ihMJ8jARQ== From: Alexei Filippov To: CC: , , , , , , , , , Subject: [PATCH v3] target/riscv/kvm/kvm-cpu.c: kvm_riscv_handle_sbi() fail with vendor-specific SBI Date: Wed, 27 Mar 2024 15:57:32 +0300 Message-ID: <20240327125732.11739-1-alexei.filippov@syntacore.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: T-EXCH-09.corp.yadro.com (172.17.11.59) To T-EXCH-12.corp.yadro.com (172.17.11.143) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: permerror client-ip=89.207.88.248; envelope-from=alexei.filippov@syntacore.com; helo=mta-04.yadro.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, T_SPF_PERMERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @syntacore.com) (identity @syntacore.com) X-ZM-MESSAGEID: 1711544314350100003 Content-Type: text/plain; charset="utf-8" kvm_riscv_handle_sbi() may return not supported return code to not trigger qemu abort with vendor-specific sbi. Added SBI related return code's defines. Signed-off-by: Alexei Filippov Fixes: 4eb47125 ("target/riscv: Handle KVM_EXIT_RISCV_SBI exit") Reviewed-by: Daniel Henrique Barboza Reviewed-by: Alistair Francis --- Changes since v2: -Clear kvm_riscv_handle_sbi() -Add SBI_ERR_NO_SHMEM return code's define target/riscv/kvm/kvm-cpu.c | 13 +++++-------- target/riscv/sbi_ecall_interface.h | 12 ++++++++++++ 2 files changed, 17 insertions(+), 8 deletions(-) diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c index 6a6c6cae80..844942d9ba 100644 --- a/target/riscv/kvm/kvm-cpu.c +++ b/target/riscv/kvm/kvm-cpu.c @@ -1392,7 +1392,6 @@ bool kvm_arch_stop_on_emulation_error(CPUState *cs) =20 static int kvm_riscv_handle_sbi(CPUState *cs, struct kvm_run *run) { - int ret =3D 0; unsigned char ch; switch (run->riscv_sbi.extension_id) { case SBI_EXT_0_1_CONSOLE_PUTCHAR: @@ -1400,22 +1399,20 @@ static int kvm_riscv_handle_sbi(CPUState *cs, struc= t kvm_run *run) qemu_chr_fe_write(serial_hd(0)->be, &ch, sizeof(ch)); break; case SBI_EXT_0_1_CONSOLE_GETCHAR: - ret =3D qemu_chr_fe_read_all(serial_hd(0)->be, &ch, sizeof(ch)); - if (ret =3D=3D sizeof(ch)) { + if (qemu_chr_fe_read_all(serial_hd(0)->be, &ch, sizeof(ch)) =3D=3D= sizeof(ch)) { run->riscv_sbi.ret[0] =3D ch; } else { - run->riscv_sbi.ret[0] =3D -1; + run->riscv_sbi.ret[0] =3D SBI_ERR_FAILURE; } - ret =3D 0; break; default: qemu_log_mask(LOG_UNIMP, - "%s: un-handled SBI EXIT, specific reasons is %lu\n", + "%s: Unhandled SBI exit with extension-id %lu\n", __func__, run->riscv_sbi.extension_id); - ret =3D -1; + run->riscv_sbi.ret[0] =3D SBI_ERR_NOT_SUPPORTED; break; } - return ret; + return 0; } =20 int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) diff --git a/target/riscv/sbi_ecall_interface.h b/target/riscv/sbi_ecall_in= terface.h index 43899d08f6..a2e21d9b8c 100644 --- a/target/riscv/sbi_ecall_interface.h +++ b/target/riscv/sbi_ecall_interface.h @@ -69,4 +69,16 @@ #define SBI_EXT_VENDOR_END 0x09FFFFFF /* clang-format on */ =20 +/* SBI return error codes */ +#define SBI_SUCCESS 0 +#define SBI_ERR_FAILURE -1 +#define SBI_ERR_NOT_SUPPORTED -2 +#define SBI_ERR_INVALID_PARAM -3 +#define SBI_ERR_DENIED -4 +#define SBI_ERR_INVALID_ADDRESS -5 +#define SBI_ERR_ALREADY_AVAILABLE -6 +#define SBI_ERR_ALREADY_STARTED -7 +#define SBI_ERR_ALREADY_STOPPED -8 +#define SBI_ERR_NO_SHMEM -9 + #endif --=20 2.34.1