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[35.228.58.138]) by smtp.gmail.com with ESMTPSA id a10-20020a194f4a000000b004793605e59dsm2116674lfk.245.2022.06.09.04.03.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jun 2022 04:03:52 -0700 (PDT) From: Grzegorz Jaszczyk To: linux-kernel@vger.kernel.org Cc: jaz@semihalf.com, dmy@semihalf.com, Paolo Bonzini , Jonathan Corbet , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), "H. Peter Anvin" , "Rafael J. Wysocki" , Len Brown , Pavel Machek , Steve Rutherford , Zide Chen , Peter Fang , Ashish Kalra , Mario Limonciello , Pratik Vishwakarma , Hans de Goede , Alex Deucher , Sachi King , Arnaldo Carvalho de Melo , Wei Wang , Fabiano Rosas , David Dunn , Nicholas Piggin , kvm@vger.kernel.org (open list:KERNEL VIRTUAL MACHINE (KVM)), linux-doc@vger.kernel.org (open list:DOCUMENTATION), linux-acpi@vger.kernel.org (open list:ACPI), linux-pm@vger.kernel.org (open list:HIBERNATION (aka Software Suspend, aka swsusp)) Subject: [PATCH 0/2] x86: notify hypervisor/VMM about guest entering s2idle Date: Thu, 9 Jun 2022 11:03:26 +0000 Message-Id: <20220609110337.1238762-1-jaz@semihalf.com> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patchset introduces support which allows to notify first the hypervisor about guest entering the s2idle state (patch #1) and second propagate this notification to user-space so the VMM can take advantage of such notification (patch #2). Please see individual patches and commit logs for more verbose description. Zide Chen (2): x86: notify hypervisor about guest entering s2idle state KVM: x86: notify user space about guest entering s2idle Documentation/virt/kvm/api.rst | 21 +++++++++++++++++++++ Documentation/virt/kvm/x86/hypercalls.rst | 7 +++++++ arch/x86/include/asm/kvm_host.h | 2 ++ arch/x86/kvm/x86.c | 18 ++++++++++++++++++ drivers/acpi/x86/s2idle.c | 8 ++++++++ include/linux/suspend.h | 1 + include/uapi/linux/kvm.h | 2 ++ include/uapi/linux/kvm_para.h | 1 + kernel/power/suspend.c | 4 ++++ tools/include/uapi/linux/kvm.h | 1 + 10 files changed, 65 insertions(+)