From: David Dai <davidai@google.com> To: Paolo Bonzini <pbonzini@redhat.com>, Jonathan Corbet <corbet@lwn.net>, Marc Zyngier <maz@kernel.org>, Oliver Upton <oliver.upton@linux.dev>, James Morse <james.morse@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Zenghui Yu <yuzenghui@huawei.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Lorenzo Pieralisi <lpieralisi@kernel.org>, Sudeep Holla <sudeep.holla@arm.com> Cc: David Dai <davidai@google.com>, Saravana Kannan <saravanak@google.com>, kernel-team@android.com, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Subject: [RFC PATCH 2/6] kvm: arm64: Add support for get_cur_cpufreq service Date: Thu, 30 Mar 2023 15:43:37 -0700 [thread overview] Message-ID: <20230330224348.1006691-3-davidai@google.com> (raw) In-Reply-To: <20230330224348.1006691-1-davidai@google.com> This service allows guests to query the host for frequency of the CPU that the vCPU is currently running on. Co-developed-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: David Dai <davidai@google.com> --- Documentation/virt/kvm/api.rst | 8 +++++++ .../virt/kvm/arm/get_cur_cpufreq.rst | 21 +++++++++++++++++++ Documentation/virt/kvm/arm/index.rst | 1 + arch/arm64/include/uapi/asm/kvm.h | 1 + arch/arm64/kvm/arm.c | 1 + arch/arm64/kvm/hypercalls.c | 18 ++++++++++++++++ include/linux/arm-smccc.h | 7 +++++++ include/uapi/linux/kvm.h | 1 + tools/arch/arm64/include/uapi/asm/kvm.h | 1 + 9 files changed, 59 insertions(+) create mode 100644 Documentation/virt/kvm/arm/get_cur_cpufreq.rst diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 62de0768d6aa..b0ff0ad700bf 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -8380,6 +8380,14 @@ structure. When getting the Modified Change Topology Report value, the attr->addr must point to a byte where the value will be stored or retrieved from. +8.40 KVM_CAP_GET_CUR_CPUFREQ +------------------------ + +:Architectures: arm64 + +This capability indicates that KVM supports getting the +frequency of the current CPU that the vCPU thread is running on. + 9. Known KVM API problems ========================= diff --git a/Documentation/virt/kvm/arm/get_cur_cpufreq.rst b/Documentation/virt/kvm/arm/get_cur_cpufreq.rst new file mode 100644 index 000000000000..06e0ed5b3868 --- /dev/null +++ b/Documentation/virt/kvm/arm/get_cur_cpufreq.rst @@ -0,0 +1,21 @@ +.. SPDX-License-Identifier: GPL-2.0 + +get_cur_cpufreq support for arm/arm64 +============================= + +Get_cur_cpufreq support is used to get current frequency(in KHz) of the +current CPU that the vCPU thread is running on. + +* ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID: 0x86000040 + +This hypercall uses the SMC32/HVC32 calling convention: + +ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID + ============== ======== ===================================== + Function ID: (uint32) 0x86000040 + Return Values: (int32) NOT_SUPPORTED(-1) on error, or + (uint32) Frequency in KHz of current CPU that the + vCPU thread is running on. + Endianness: Must be the same endianness + as the host. + ============== ======== ===================================== diff --git a/Documentation/virt/kvm/arm/index.rst b/Documentation/virt/kvm/arm/index.rst index e84848432158..47afc5c1f24a 100644 --- a/Documentation/virt/kvm/arm/index.rst +++ b/Documentation/virt/kvm/arm/index.rst @@ -11,3 +11,4 @@ ARM hypercalls pvtime ptp_kvm + get_cur_cpufreq diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h index f8129c624b07..ed8b63e91bdc 100644 --- a/arch/arm64/include/uapi/asm/kvm.h +++ b/arch/arm64/include/uapi/asm/kvm.h @@ -367,6 +367,7 @@ enum { enum { KVM_REG_ARM_VENDOR_HYP_BIT_FUNC_FEAT = 0, KVM_REG_ARM_VENDOR_HYP_BIT_PTP = 1, + KVM_REG_ARM_VENDOR_HYP_BIT_GET_CUR_CPUFREQ = 2, #ifdef __KERNEL__ KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT, #endif diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 3bd732eaf087..f960b136c611 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -220,6 +220,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_VCPU_ATTRIBUTES: case KVM_CAP_PTP_KVM: case KVM_CAP_ARM_SYSTEM_SUSPEND: + case KVM_CAP_GET_CUR_CPUFREQ: r = 1; break; case KVM_CAP_SET_GUEST_DEBUG2: diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c index 5da884e11337..b3f4b90c024b 100644 --- a/arch/arm64/kvm/hypercalls.c +++ b/arch/arm64/kvm/hypercalls.c @@ -3,6 +3,9 @@ #include <linux/arm-smccc.h> #include <linux/kvm_host.h> +#include <linux/cpufreq.h> +#include <linux/sched.h> +#include <uapi/linux/sched/types.h> #include <asm/kvm_emulate.h> @@ -16,6 +19,15 @@ #define KVM_ARM_SMCCC_VENDOR_HYP_FEATURES \ GENMASK(KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT - 1, 0) +static void kvm_sched_get_cur_cpufreq(struct kvm_vcpu *vcpu, u64 *val) +{ + unsigned long ret_freq; + + ret_freq = cpufreq_get(task_cpu(current)); + + val[0] = ret_freq; +} + static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val) { struct system_time_snapshot systime_snapshot; @@ -116,6 +128,9 @@ static bool kvm_hvc_call_allowed(struct kvm_vcpu *vcpu, u32 func_id) case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID: return test_bit(KVM_REG_ARM_VENDOR_HYP_BIT_PTP, &smccc_feat->vendor_hyp_bmap); + case ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID: + return test_bit(KVM_REG_ARM_VENDOR_HYP_BIT_GET_CUR_CPUFREQ, + &smccc_feat->vendor_hyp_bmap); default: return kvm_hvc_call_default_allowed(func_id); } @@ -213,6 +228,9 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu) case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID: kvm_ptp_get_time(vcpu, val); break; + case ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID: + kvm_sched_get_cur_cpufreq(vcpu, val); + break; case ARM_SMCCC_TRNG_VERSION: case ARM_SMCCC_TRNG_FEATURES: case ARM_SMCCC_TRNG_GET_UUID: diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index 220c8c60e021..e15f1bdcf3f1 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -112,6 +112,7 @@ /* KVM "vendor specific" services */ #define ARM_SMCCC_KVM_FUNC_FEATURES 0 #define ARM_SMCCC_KVM_FUNC_PTP 1 +#define ARM_SMCCC_KVM_FUNC_GET_CUR_CPUFREQ 64 #define ARM_SMCCC_KVM_FUNC_FEATURES_2 127 #define ARM_SMCCC_KVM_NUM_FUNCS 128 @@ -138,6 +139,12 @@ #define KVM_PTP_VIRT_COUNTER 0 #define KVM_PTP_PHYS_COUNTER 1 +#define ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID \ + ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ + ARM_SMCCC_SMC_32, \ + ARM_SMCCC_OWNER_VENDOR_HYP, \ + ARM_SMCCC_KVM_FUNC_GET_CUR_CPUFREQ) + /* Paravirtualised time calls (defined by ARM DEN0057A) */ #define ARM_SMCCC_HV_PV_TIME_FEATURES \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d77aef872a0a..0a1a260243bf 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1184,6 +1184,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224 #define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225 #define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226 +#define KVM_CAP_GET_CUR_CPUFREQ 512 #ifdef KVM_CAP_IRQ_ROUTING diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h index f8129c624b07..ed8b63e91bdc 100644 --- a/tools/arch/arm64/include/uapi/asm/kvm.h +++ b/tools/arch/arm64/include/uapi/asm/kvm.h @@ -367,6 +367,7 @@ enum { enum { KVM_REG_ARM_VENDOR_HYP_BIT_FUNC_FEAT = 0, KVM_REG_ARM_VENDOR_HYP_BIT_PTP = 1, + KVM_REG_ARM_VENDOR_HYP_BIT_GET_CUR_CPUFREQ = 2, #ifdef __KERNEL__ KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT, #endif -- 2.40.0.348.gf938b09366-goog
WARNING: multiple messages have this Message-ID (diff)
From: David Dai <davidai@google.com> To: Paolo Bonzini <pbonzini@redhat.com>, Jonathan Corbet <corbet@lwn.net>, Marc Zyngier <maz@kernel.org>, Oliver Upton <oliver.upton@linux.dev>, James Morse <james.morse@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Zenghui Yu <yuzenghui@huawei.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Lorenzo Pieralisi <lpieralisi@kernel.org>, Sudeep Holla <sudeep.holla@arm.com> Cc: David Dai <davidai@google.com>, Saravana Kannan <saravanak@google.com>, kernel-team@android.com, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Subject: [RFC PATCH 2/6] kvm: arm64: Add support for get_cur_cpufreq service Date: Thu, 30 Mar 2023 15:43:37 -0700 [thread overview] Message-ID: <20230330224348.1006691-3-davidai@google.com> (raw) In-Reply-To: <20230330224348.1006691-1-davidai@google.com> This service allows guests to query the host for frequency of the CPU that the vCPU is currently running on. Co-developed-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: David Dai <davidai@google.com> --- Documentation/virt/kvm/api.rst | 8 +++++++ .../virt/kvm/arm/get_cur_cpufreq.rst | 21 +++++++++++++++++++ Documentation/virt/kvm/arm/index.rst | 1 + arch/arm64/include/uapi/asm/kvm.h | 1 + arch/arm64/kvm/arm.c | 1 + arch/arm64/kvm/hypercalls.c | 18 ++++++++++++++++ include/linux/arm-smccc.h | 7 +++++++ include/uapi/linux/kvm.h | 1 + tools/arch/arm64/include/uapi/asm/kvm.h | 1 + 9 files changed, 59 insertions(+) create mode 100644 Documentation/virt/kvm/arm/get_cur_cpufreq.rst diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 62de0768d6aa..b0ff0ad700bf 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -8380,6 +8380,14 @@ structure. When getting the Modified Change Topology Report value, the attr->addr must point to a byte where the value will be stored or retrieved from. +8.40 KVM_CAP_GET_CUR_CPUFREQ +------------------------ + +:Architectures: arm64 + +This capability indicates that KVM supports getting the +frequency of the current CPU that the vCPU thread is running on. + 9. Known KVM API problems ========================= diff --git a/Documentation/virt/kvm/arm/get_cur_cpufreq.rst b/Documentation/virt/kvm/arm/get_cur_cpufreq.rst new file mode 100644 index 000000000000..06e0ed5b3868 --- /dev/null +++ b/Documentation/virt/kvm/arm/get_cur_cpufreq.rst @@ -0,0 +1,21 @@ +.. SPDX-License-Identifier: GPL-2.0 + +get_cur_cpufreq support for arm/arm64 +============================= + +Get_cur_cpufreq support is used to get current frequency(in KHz) of the +current CPU that the vCPU thread is running on. + +* ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID: 0x86000040 + +This hypercall uses the SMC32/HVC32 calling convention: + +ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID + ============== ======== ===================================== + Function ID: (uint32) 0x86000040 + Return Values: (int32) NOT_SUPPORTED(-1) on error, or + (uint32) Frequency in KHz of current CPU that the + vCPU thread is running on. + Endianness: Must be the same endianness + as the host. + ============== ======== ===================================== diff --git a/Documentation/virt/kvm/arm/index.rst b/Documentation/virt/kvm/arm/index.rst index e84848432158..47afc5c1f24a 100644 --- a/Documentation/virt/kvm/arm/index.rst +++ b/Documentation/virt/kvm/arm/index.rst @@ -11,3 +11,4 @@ ARM hypercalls pvtime ptp_kvm + get_cur_cpufreq diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h index f8129c624b07..ed8b63e91bdc 100644 --- a/arch/arm64/include/uapi/asm/kvm.h +++ b/arch/arm64/include/uapi/asm/kvm.h @@ -367,6 +367,7 @@ enum { enum { KVM_REG_ARM_VENDOR_HYP_BIT_FUNC_FEAT = 0, KVM_REG_ARM_VENDOR_HYP_BIT_PTP = 1, + KVM_REG_ARM_VENDOR_HYP_BIT_GET_CUR_CPUFREQ = 2, #ifdef __KERNEL__ KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT, #endif diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 3bd732eaf087..f960b136c611 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -220,6 +220,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_VCPU_ATTRIBUTES: case KVM_CAP_PTP_KVM: case KVM_CAP_ARM_SYSTEM_SUSPEND: + case KVM_CAP_GET_CUR_CPUFREQ: r = 1; break; case KVM_CAP_SET_GUEST_DEBUG2: diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c index 5da884e11337..b3f4b90c024b 100644 --- a/arch/arm64/kvm/hypercalls.c +++ b/arch/arm64/kvm/hypercalls.c @@ -3,6 +3,9 @@ #include <linux/arm-smccc.h> #include <linux/kvm_host.h> +#include <linux/cpufreq.h> +#include <linux/sched.h> +#include <uapi/linux/sched/types.h> #include <asm/kvm_emulate.h> @@ -16,6 +19,15 @@ #define KVM_ARM_SMCCC_VENDOR_HYP_FEATURES \ GENMASK(KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT - 1, 0) +static void kvm_sched_get_cur_cpufreq(struct kvm_vcpu *vcpu, u64 *val) +{ + unsigned long ret_freq; + + ret_freq = cpufreq_get(task_cpu(current)); + + val[0] = ret_freq; +} + static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val) { struct system_time_snapshot systime_snapshot; @@ -116,6 +128,9 @@ static bool kvm_hvc_call_allowed(struct kvm_vcpu *vcpu, u32 func_id) case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID: return test_bit(KVM_REG_ARM_VENDOR_HYP_BIT_PTP, &smccc_feat->vendor_hyp_bmap); + case ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID: + return test_bit(KVM_REG_ARM_VENDOR_HYP_BIT_GET_CUR_CPUFREQ, + &smccc_feat->vendor_hyp_bmap); default: return kvm_hvc_call_default_allowed(func_id); } @@ -213,6 +228,9 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu) case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID: kvm_ptp_get_time(vcpu, val); break; + case ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID: + kvm_sched_get_cur_cpufreq(vcpu, val); + break; case ARM_SMCCC_TRNG_VERSION: case ARM_SMCCC_TRNG_FEATURES: case ARM_SMCCC_TRNG_GET_UUID: diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index 220c8c60e021..e15f1bdcf3f1 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -112,6 +112,7 @@ /* KVM "vendor specific" services */ #define ARM_SMCCC_KVM_FUNC_FEATURES 0 #define ARM_SMCCC_KVM_FUNC_PTP 1 +#define ARM_SMCCC_KVM_FUNC_GET_CUR_CPUFREQ 64 #define ARM_SMCCC_KVM_FUNC_FEATURES_2 127 #define ARM_SMCCC_KVM_NUM_FUNCS 128 @@ -138,6 +139,12 @@ #define KVM_PTP_VIRT_COUNTER 0 #define KVM_PTP_PHYS_COUNTER 1 +#define ARM_SMCCC_VENDOR_HYP_KVM_GET_CUR_CPUFREQ_FUNC_ID \ + ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ + ARM_SMCCC_SMC_32, \ + ARM_SMCCC_OWNER_VENDOR_HYP, \ + ARM_SMCCC_KVM_FUNC_GET_CUR_CPUFREQ) + /* Paravirtualised time calls (defined by ARM DEN0057A) */ #define ARM_SMCCC_HV_PV_TIME_FEATURES \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d77aef872a0a..0a1a260243bf 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1184,6 +1184,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224 #define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225 #define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226 +#define KVM_CAP_GET_CUR_CPUFREQ 512 #ifdef KVM_CAP_IRQ_ROUTING diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h index f8129c624b07..ed8b63e91bdc 100644 --- a/tools/arch/arm64/include/uapi/asm/kvm.h +++ b/tools/arch/arm64/include/uapi/asm/kvm.h @@ -367,6 +367,7 @@ enum { enum { KVM_REG_ARM_VENDOR_HYP_BIT_FUNC_FEAT = 0, KVM_REG_ARM_VENDOR_HYP_BIT_PTP = 1, + KVM_REG_ARM_VENDOR_HYP_BIT_GET_CUR_CPUFREQ = 2, #ifdef __KERNEL__ KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_COUNT, #endif -- 2.40.0.348.gf938b09366-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-03-30 22:44 UTC|newest] Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-03-30 22:43 [RFC PATCH 0/6] Improve VM DVFS and task placement behavior David Dai 2023-03-30 22:43 ` David Dai 2023-03-30 22:43 ` [RFC PATCH 1/6] sched/fair: Add util_guest for tasks David Dai 2023-03-31 2:01 ` kernel test robot 2023-04-03 11:40 ` Dietmar Eggemann 2023-04-04 1:11 ` David Dai 2023-04-05 8:29 ` Quentin Perret 2023-04-05 10:50 ` Dietmar Eggemann 2023-04-05 21:42 ` Saravana Kannan 2023-04-05 23:36 ` David Dai 2023-04-05 8:14 ` Peter Zijlstra 2023-04-05 22:54 ` David Dai 2023-04-06 7:33 ` Peter Zijlstra 2023-03-30 22:43 ` David Dai [this message] 2023-03-30 22:43 ` [RFC PATCH 2/6] kvm: arm64: Add support for get_cur_cpufreq service David Dai 2023-04-05 8:04 ` Quentin Perret 2023-04-05 8:04 ` Quentin Perret 2023-03-30 22:43 ` [RFC PATCH 3/6] kvm: arm64: Add support for util_hint service David Dai 2023-03-30 22:43 ` David Dai 2023-03-30 22:43 ` [RFC PATCH 4/6] kvm: arm64: Add support for get_freqtbl service David Dai 2023-03-30 22:43 ` David Dai 2023-03-30 22:43 ` [RFC PATCH 5/6] dt-bindings: cpufreq: add bindings for virtual kvm cpufreq David Dai 2023-03-30 22:43 ` [RFC PATCH 6/6] cpufreq: add kvm-cpufreq driver David Dai 2023-04-05 8:22 ` Peter Zijlstra 2023-04-05 22:42 ` David Dai 2023-03-30 23:20 ` [RFC PATCH 0/6] Improve VM DVFS and task placement behavior Oliver Upton 2023-03-30 23:20 ` Oliver Upton 2023-03-30 23:36 ` Saravana Kannan 2023-03-30 23:36 ` Saravana Kannan 2023-03-30 23:40 ` Oliver Upton 2023-03-30 23:40 ` Oliver Upton 2023-03-31 0:34 ` Saravana Kannan 2023-03-31 0:34 ` Saravana Kannan 2023-03-31 0:49 ` Matthew Wilcox 2023-03-31 0:49 ` Matthew Wilcox 2023-04-03 10:18 ` Mel Gorman 2023-04-03 10:18 ` Mel Gorman 2023-04-04 19:43 ` Oliver Upton 2023-04-04 19:43 ` Oliver Upton 2023-04-04 20:49 ` Marc Zyngier 2023-04-04 20:49 ` Marc Zyngier 2023-04-05 7:48 ` Quentin Perret 2023-04-05 7:48 ` Quentin Perret 2023-04-05 8:33 ` Vincent Guittot 2023-04-05 8:33 ` Vincent Guittot 2023-04-05 21:07 ` Saravana Kannan 2023-04-05 21:07 ` Saravana Kannan 2023-04-06 12:52 ` Quentin Perret 2023-04-06 12:52 ` Quentin Perret 2023-04-06 21:39 ` David Dai 2023-04-06 21:39 ` David Dai 2023-04-05 21:00 ` Saravana Kannan 2023-04-05 21:00 ` Saravana Kannan 2023-04-06 8:42 ` Marc Zyngier 2023-04-06 8:42 ` Marc Zyngier 2023-04-05 8:05 ` Peter Zijlstra 2023-04-05 8:05 ` Peter Zijlstra 2023-04-05 21:08 ` Saravana Kannan 2023-04-05 21:08 ` Saravana Kannan 2023-04-06 7:36 ` Peter Zijlstra 2023-04-06 7:36 ` Peter Zijlstra 2023-04-06 7:38 ` Peter Zijlstra 2023-04-06 7:38 ` Peter Zijlstra 2023-04-27 7:46 ` Pavan Kondeti 2023-04-27 7:46 ` Pavan Kondeti 2023-04-27 9:52 ` Gupta, Pankaj 2023-04-27 9:52 ` Gupta, Pankaj 2023-04-27 11:26 ` Pavan Kondeti 2023-04-27 11:26 ` Pavan Kondeti
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20230330224348.1006691-3-davidai@google.com \ --to=davidai@google.com \ --cc=catalin.marinas@arm.com \ --cc=corbet@lwn.net \ --cc=james.morse@arm.com \ --cc=kernel-team@android.com \ --cc=kvm@vger.kernel.org \ --cc=kvmarm@lists.linux.dev \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-doc@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=lpieralisi@kernel.org \ --cc=mark.rutland@arm.com \ --cc=maz@kernel.org \ --cc=oliver.upton@linux.dev \ --cc=pbonzini@redhat.com \ --cc=saravanak@google.com \ --cc=sudeep.holla@arm.com \ --cc=suzuki.poulose@arm.com \ --cc=will@kernel.org \ --cc=yuzenghui@huawei.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.