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[89.103.73.235]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a073ca5473sm17383962f8f.31.2025.04.30.07.38.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Apr 2025 07:38:58 -0700 (PDT) Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Wed, 30 Apr 2025 16:38:57 +0200 Message-Id: Subject: Re: [PATCH 4/5] KVM: RISC-V: reset VCPU state when becoming runnable Cc: "Anup Patel" , , , , , "Atish Patra" , "Paul Walmsley" , "Palmer Dabbelt" , "Albert Ou" , "Alexandre Ghiti" , "Andrew Jones" , "Mayuresh Chitale" To: "Anup Patel" From: =?utf-8?q?Radim_Kr=C4=8Dm=C3=A1=C5=99?= References: <20250403112522.1566629-3-rkrcmar@ventanamicro.com> <20250403112522.1566629-7-rkrcmar@ventanamicro.com> In-Reply-To: 2025-04-30T18:32:31+05:30, Anup Patel : > On Wed, Apr 30, 2025 at 5:15=E2=80=AFPM Radim Kr=C4=8Dm=C3=A1=C5=99 wrote: >> We can re-use KVM_SET_MP_STATE and add a KVM capability. >> Userspace will opt-in to reset the VCPU through the existing IOCTL. >> >> This design will also allow userspace to trigger a VCPU reset without >> tearing down the whole VM. > > Okay, lets go ahead with a KVM capability which user space can opt-in > for KVM_SET_MP_STATE ioctl(). > > Keep in mind that at runtime Guest can still do CPU hotplug using SBI > HSM start/stop and do system suspend using SBI SUSP so we should > continue to have VCPU reset requests for both these SBI extensions. Will do, thanks. 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[89.103.73.235]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a073ca5473sm17383962f8f.31.2025.04.30.07.38.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Apr 2025 07:38:58 -0700 (PDT) Mime-Version: 1.0 Date: Wed, 30 Apr 2025 16:38:57 +0200 Message-Id: Subject: Re: [PATCH 4/5] KVM: RISC-V: reset VCPU state when becoming runnable Cc: "Anup Patel" , , , , , "Atish Patra" , "Paul Walmsley" , "Palmer Dabbelt" , "Albert Ou" , "Alexandre Ghiti" , "Andrew Jones" , "Mayuresh Chitale" To: "Anup Patel" From: =?utf-8?q?Radim_Kr=C4=8Dm=C3=A1=C5=99?= References: <20250403112522.1566629-3-rkrcmar@ventanamicro.com> <20250403112522.1566629-7-rkrcmar@ventanamicro.com> In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250430_073900_818215_ED946781 X-CRM114-Status: UNSURE ( 8.61 ) X-CRM114-Notice: Please train this message. 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