Message ID | 20230419221716.3603068-3-atishp@rivosinc.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
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Wed, 19 Apr 2023 15:17:33 -0700 (PDT) From: Atish Patra <atishp@rivosinc.com> To: linux-kernel@vger.kernel.org Cc: Atish Patra <atishp@rivosinc.com>, Alexandre Ghiti <alex@ghiti.fr>, Andrew Jones <ajones@ventanamicro.com>, Andrew Morton <akpm@linux-foundation.org>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= <bjorn@rivosinc.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>, Sean Christopherson <seanjc@google.com>, linux-coco@lists.linux.dev, Dylan Reid <dylan@rivosinc.com>, abrestic@rivosinc.com, Samuel Ortiz <sameo@rivosinc.com>, Christoph Hellwig <hch@infradead.org>, Conor Dooley <conor.dooley@microchip.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Guo Ren <guoren@kernel.org>, Heiko Stuebner <heiko@sntech.de>, Jiri Slaby <jirislaby@kernel.org>, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mayuresh Chitale <mchitale@ventanamicro.com>, Palmer Dabbelt <palmer@dabbelt.com>, Paolo Bonzini <pbonzini@redhat.com>, Paul Walmsley <paul.walmsley@sifive.com>, Rajnesh Kanwal <rkanwal@rivosinc.com>, Uladzislau Rezki <urezki@gmail.com> Subject: [RFC 02/48] RISC-V: KVM: Improve KVM error reporting to the user space Date: Wed, 19 Apr 2023 15:16:30 -0700 Message-Id: <20230419221716.3603068-3-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230419_151737_035707_B1B3E0D3 X-CRM114-Status: GOOD ( 12.54 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-riscv.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-riscv>, <mailto:linux-riscv-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-riscv/> List-Post: <mailto:linux-riscv@lists.infradead.org> List-Help: <mailto:linux-riscv-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-riscv>, <mailto:linux-riscv-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" <linux-riscv-bounces@lists.infradead.org> Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org |
Series |
RISC-V CoVE support
|
expand
|
Context | Check | Description |
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conchuod/tree_selection | fail | Failed to apply to next/pending-fixes or riscv/for-next |
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h index 3176355..e78503a 100644 --- a/arch/riscv/include/asm/csr.h +++ b/arch/riscv/include/asm/csr.h @@ -96,6 +96,8 @@ #define EXC_VIRTUAL_INST_FAULT 22 #define EXC_STORE_GUEST_PAGE_FAULT 23 +#define EXC_CUSTOM_KVM_COVE_RUN_FAIL 48 + /* PMP configuration */ #define PMP_R 0x01 #define PMP_W 0x02 diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index b41d0e7..11440df 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -245,6 +245,10 @@ enum KVM_RISCV_SBI_EXT_ID { /* One single KVM irqchip, ie. the AIA */ #define KVM_NR_IRQCHIPS 1 +/* run->fail_entry.hardware_entry_failure_reason codes. */ +#define KVM_EXIT_FAIL_ENTRY_IMSIC_FILE_UNAVAILABLE (1ULL << 0) +#define KVM_EXIT_FAIL_ENTRY_COVE_RUN_VCPU (1ULL << 1) + #endif #endif /* __LINUX_KVM_RISCV_H */
This patch adds RISC-V specific cause for ioctl run failure. For now, it will be used for the below two cases: 1. Insufficient IMSIC files if VM is configured to run in HWACCEL mode 2. TSM is unable to run run_vcpu SBI call for TVMs KVM also uses a custom scause bit(48) to distinguish this case from regular vcpu exit causes. Signed-off-by: Atish Patra <atishp@rivosinc.com> --- arch/riscv/include/asm/csr.h | 2 ++ arch/riscv/include/uapi/asm/kvm.h | 4 ++++ 2 files changed, 6 insertions(+)