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From: Paolo Bonzini <pbonzini@redhat.com>
To: Tianrui Zhao <zhaotianrui@loongson.cn>
Cc: Huacai Chen <chenhuacai@kernel.org>,
	WANG Xuerui <kernel@xen0n.name>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	loongarch@lists.linux.dev, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
	Mark Brown <broonie@kernel.org>,
	Alex Deucher <alexander.deucher@amd.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	maobibo@loongson.cn
Subject: Re: [PATCH v2 27/29] LoongArch: KVM: Implement vcpu world switch
Date: Tue, 21 Feb 2023 09:18:23 +0100	[thread overview]
Message-ID: <884fdf34-e675-2ebe-e37f-6aeb696a0922@redhat.com> (raw)
In-Reply-To: <20230220065735.1282809-28-zhaotianrui@loongson.cn>

On 2/20/23 07:57, Tianrui Zhao wrote:
> +	or	a0, s0, zero
> +	or	a1, s1, zero
> +	ld.d	t8, a2, KVM_ARCH_HANDLE_EXIT
> +	jirl	ra,t8, 0
> +	ori	t0, zero, CSR_CRMD_IE
> +	csrxchg	zero, t0, LOONGARCH_CSR_CRMD

_kvm_handle_exit returns with the interrupts disabled.

Can you please add a comment to explain why CRMD.IE needs to be cleared 
here, or remove these two instructions if unnecessary?

Paolo

> +	or	a2, s1, zero
> +	addi.d	a2, a2, KVM_VCPU_ARCH
> +
> +	andi	t0, a0, RESUME_HOST
> +	bnez	t0, ret_to_host


  parent reply	other threads:[~2023-02-21  8:19 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-20  6:57 [PATCH v2 00/29] Add KVM LoongArch support Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 01/29] LoongArch: KVM: Add kvm related header files Tianrui Zhao
2023-02-20 18:22   ` Paolo Bonzini
2023-02-21  2:56     ` Tianrui Zhao
2023-02-21  6:49       ` Paolo Bonzini
2023-02-20 18:54   ` WANG Xuerui
2023-02-21  4:36   ` Xi Ruoyao
2023-02-24  1:27     ` Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 02/29] LoongArch: KVM: Implement kvm module related interface Tianrui Zhao
2023-02-20 17:46   ` Paolo Bonzini
2023-02-21  3:02     ` Tianrui Zhao
2023-02-21  6:59     ` maobibo
2023-02-21  8:14       ` Paolo Bonzini
2023-02-21 10:18         ` maobibo
2023-02-21 10:37           ` WANG Xuerui
2023-02-21 11:39             ` maobibo
2023-02-21 12:38               ` WANG Xuerui
2023-02-20  6:57 ` [PATCH v2 03/29] LoongArch: KVM: Implement kvm hardware enable, disable interface Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 04/29] LoongArch: KVM: Implement VM related functions Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 05/29] LoongArch: KVM: Add vcpu related header files Tianrui Zhao
2023-02-20 18:57   ` WANG Xuerui
2023-02-27  1:39     ` Tianrui Zhao
2023-02-21  4:44   ` Xi Ruoyao
2023-02-21  6:46     ` maobibo
2023-02-21  6:48       ` Paolo Bonzini
2023-02-21  7:12       ` Xi Ruoyao
2023-02-21  7:35         ` Paolo Bonzini
2023-02-20  6:57 ` [PATCH v2 06/29] LoongArch: KVM: Implement vcpu create and destroy interface Tianrui Zhao
2023-02-20 17:53   ` Paolo Bonzini
2023-02-22  1:52     ` Tianrui Zhao
2023-02-22 12:17       ` Paolo Bonzini
2023-02-23  1:23         ` Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 07/29] LoongArch: KVM: Implement vcpu run interface Tianrui Zhao
2023-02-20 18:44   ` Paolo Bonzini
2023-02-22  2:08     ` Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 08/29] LoongArch: KVM: Implement vcpu handle exit interface Tianrui Zhao
2023-02-20 17:46   ` Paolo Bonzini
2023-02-20 18:45   ` Paolo Bonzini
2023-02-21  3:17     ` Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 09/29] LoongArch: KVM: Implement vcpu get, vcpu set registers Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 10/29] LoongArch: KVM: Implement vcpu ENABLE_CAP, CHECK_EXTENSION ioctl interface Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 11/29] LoongArch: KVM: Implement fpu related operations for vcpu Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 12/29] LoongArch: KVM: Implement vcpu interrupt operations Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 13/29] LoongArch: KVM: Implement misc vcpu related interfaces Tianrui Zhao
2023-02-20 18:50   ` Paolo Bonzini
2023-02-21  3:19     ` Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 14/29] LoongArch: KVM: Implement vcpu load and vcpu put operations Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 15/29] LoongArch: KVM: Implement vcpu status description Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 16/29] LoongArch: KVM: Implement update VM id function Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 17/29] LoongArch: KVM: Implement virtual machine tlb operations Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 18/29] LoongArch: KVM: Implement vcpu timer operations Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 19/29] LoongArch: KVM: Implement kvm mmu operations Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 20/29] LoongArch: KVM: Implement handle csr excption Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 21/29] LoongArch: KVM: Implement handle iocsr exception Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 22/29] LoongArch: KVM: Implement handle idle exception Tianrui Zhao
2023-02-20 18:40   ` Paolo Bonzini
2023-02-21  9:48     ` Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 23/29] LoongArch: KVM: Implement handle gspr exception Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 24/29] LoongArch: KVM: Implement handle mmio exception Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 25/29] LoongArch: KVM: Implement handle fpu exception Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 26/29] LoongArch: KVM: Implement kvm exception vector Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 27/29] LoongArch: KVM: Implement vcpu world switch Tianrui Zhao
2023-02-21  7:45   ` Paolo Bonzini
2023-02-21 13:00     ` Tianrui Zhao
2023-02-21  8:18   ` Paolo Bonzini [this message]
2023-02-21 12:58     ` Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 28/29] LoongArch: KVM: Implement probe virtualization when loongarch cpu init Tianrui Zhao
2023-02-20  6:57 ` [PATCH v2 29/29] LoongArch: KVM: Enable kvm config and add the makefile Tianrui Zhao
2023-02-20  9:47   ` kernel test robot
2023-02-20 11:09   ` kernel test robot

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