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[207.172.141.204]) by smtp.gmail.com with ESMTPSA id d3-20020ac81183000000b00402364e77dcsm3273060qtj.7.2023.07.24.05.59.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Jul 2023 05:59:29 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: ee157326-2a21-11ee-8612-37d641c3527e DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1690203570; x=1690808370; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=UU4SMiJdUktv8hEdzVKy8V3KsteeHcG1cOr0eV9yG8I=; b=BcWMVL5ueF+iP4G5PnLsosbjMkhYHV2qzqa317LHDSf9s2ANyQN+l4UOxmpwMB9HTn /UVG+dG5qzwqWL0HjMNrODL/zl8/FMiMJhxoIwFylrKrolfi1vICFTPYD8niJNmB5/j0 +osv8lpLnFVsuRuwdIFnEQ9p+3AC3TTD1RQKxM4wjkd6W4N23/vFZFR4wcguk62Wls/E 7hzyDKsIpxJfzMJkqQj9oxupG4lKoCX9O+vrTbvVy61OiLXe9wT7XsqoFLadItXCkdF0 rbtCDsP3QE5A6ynwe8GHNRdSzruMC2PP11SWhO/C1qHf/q+rRj1sxWE7wNC7X2XDJLIL jaMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690203570; x=1690808370; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UU4SMiJdUktv8hEdzVKy8V3KsteeHcG1cOr0eV9yG8I=; b=FlHetaV6jCO1Kr+MlMkqvnf9jcCVSNJ9jOLOeDFGQ+cuW3WGSnUv3SBG4D1IEgNx02 nn/E1wLBFQhEGCHZY3r8eMA2a/IdE07w83JixtYNsYUlqSKqUtYdLl6TkJjj0gNSP8Mq fxExnaqOjUlUh5Kxs8XkooSl2XjxkhtaHZCfAlKUZERMWeAMUulPuak+G+06lzU05s+N q/iQyGYJA+0xhnwJWo6S28YvhAIMwuC7NO1lSww11FBDnDnCG0e2dVHdMFKmfSyWoX7D wZBIkxbTsO3qHW+MDJz/sEfodk7c0gRVbrs7Fp6x4w+3gmCaG4moQtmx7h+reLVWpti5 ShKQ== X-Gm-Message-State: ABy/qLbjd6a3YFPpruiXvwY6zSJa22RHks1vAATn6uYbgEHfftDrJtMk 9ouUWiNhrzr7mzHzHNNI9754kzsuNiU= X-Google-Smtp-Source: APBJJlFJmsqQYBT5LfoXDKUnIASSQEg6TvmQR9TcF2qEFG8Sz+O+8XEcKxeEgiI0T1/o6KQXqePvHg== X-Received: by 2002:a05:622a:1314:b0:3ff:23e4:40b4 with SMTP id v20-20020a05622a131400b003ff23e440b4mr9359913qtk.42.1690203570171; Mon, 24 Jul 2023 05:59:30 -0700 (PDT) From: Jason Andryuk To: xen-devel@lists.xenproject.org Cc: Jason Andryuk , Wei Liu , Anthony PERARD , Juergen Gross , Jan Beulich Subject: [PATCH v6 05/15] pmstat&xenpm: Re-arrage for cpufreq union Date: Mon, 24 Jul 2023 08:58:47 -0400 Message-ID: <20230724125857.11133-6-jandryuk@gmail.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230724125857.11133-1-jandryuk@gmail.com> References: <20230724125857.11133-1-jandryuk@gmail.com> MIME-Version: 1.0 Rearrange code now that xen_sysctl_pm_op's get_para fields has the nested union and struct. In particular, the scaling governor information like scaling_available_governors is inside the union, so it is not always available. Move those fields (op->u.get_para.u.s.u.*) together as well as the common fields (ones outside the union like op->u.get_para.turbo_enabled). With that, gov_num may be 0, so bounce buffer handling needs to be modified. scaling_governor and other fields inside op->u.get_para.u.s.u.* won't be used for hwp, so this will simplify the change when hwp support is introduced and re-indents these lines all together. Signed-off-by: Jason Andryuk Acked-by: Jan Beulich --- v6: Add Jan's Ack v5: Remove some formatting changes Expand commit message --- tools/libs/ctrl/xc_pm.c | 12 ++++++++---- tools/misc/xenpm.c | 3 ++- xen/drivers/acpi/pmstat.c | 24 ++++++++++++------------ 3 files changed, 22 insertions(+), 17 deletions(-) diff --git a/tools/libs/ctrl/xc_pm.c b/tools/libs/ctrl/xc_pm.c index 6e751e242f..cea3eab22e 100644 --- a/tools/libs/ctrl/xc_pm.c +++ b/tools/libs/ctrl/xc_pm.c @@ -221,7 +221,7 @@ int xc_get_cpufreq_para(xc_interface *xch, int cpuid, { if ( (!user_para->affected_cpus) || (!user_para->scaling_available_frequencies) || - (!user_para->scaling_available_governors) ) + (user_para->gov_num && !user_para->scaling_available_governors) ) { errno = EINVAL; return -1; @@ -230,12 +230,15 @@ int xc_get_cpufreq_para(xc_interface *xch, int cpuid, goto unlock_1; if ( xc_hypercall_bounce_pre(xch, scaling_available_frequencies) ) goto unlock_2; - if ( xc_hypercall_bounce_pre(xch, scaling_available_governors) ) + if ( user_para->gov_num && + xc_hypercall_bounce_pre(xch, scaling_available_governors) ) goto unlock_3; set_xen_guest_handle(sys_para->affected_cpus, affected_cpus); set_xen_guest_handle(sys_para->scaling_available_frequencies, scaling_available_frequencies); - set_xen_guest_handle(sys_para->scaling_available_governors, scaling_available_governors); + if ( user_para->gov_num ) + set_xen_guest_handle(sys_para->scaling_available_governors, + scaling_available_governors); } sysctl.cmd = XEN_SYSCTL_pm_op; @@ -278,7 +281,8 @@ int xc_get_cpufreq_para(xc_interface *xch, int cpuid, } unlock_4: - xc_hypercall_bounce_post(xch, scaling_available_governors); + if ( user_para->gov_num ) + xc_hypercall_bounce_post(xch, scaling_available_governors); unlock_3: xc_hypercall_bounce_post(xch, scaling_available_frequencies); unlock_2: diff --git a/tools/misc/xenpm.c b/tools/misc/xenpm.c index ee8ce5d5f2..1c474c3b59 100644 --- a/tools/misc/xenpm.c +++ b/tools/misc/xenpm.c @@ -811,7 +811,8 @@ static int show_cpufreq_para_by_cpuid(xc_interface *xc_handle, int cpuid) ret = -ENOMEM; goto out; } - if (!(p_cpufreq->scaling_available_governors = + if (p_cpufreq->gov_num && + !(p_cpufreq->scaling_available_governors = malloc(p_cpufreq->gov_num * CPUFREQ_NAME_LEN * sizeof(char)))) { fprintf(stderr, diff --git a/xen/drivers/acpi/pmstat.c b/xen/drivers/acpi/pmstat.c index f5a9ac3f1a..d67d99e62f 100644 --- a/xen/drivers/acpi/pmstat.c +++ b/xen/drivers/acpi/pmstat.c @@ -239,6 +239,18 @@ static int get_cpufreq_para(struct xen_sysctl_pm_op *op) if ( ret ) return ret; + op->u.get_para.cpuinfo_cur_freq = + cpufreq_driver.get ? cpufreq_driver.get(op->cpuid) : policy->cur; + op->u.get_para.cpuinfo_max_freq = policy->cpuinfo.max_freq; + op->u.get_para.cpuinfo_min_freq = policy->cpuinfo.min_freq; + op->u.get_para.turbo_enabled = cpufreq_get_turbo_status(op->cpuid); + + if ( cpufreq_driver.name[0] ) + strlcpy(op->u.get_para.scaling_driver, + cpufreq_driver.name, CPUFREQ_NAME_LEN); + else + strlcpy(op->u.get_para.scaling_driver, "Unknown", CPUFREQ_NAME_LEN); + if ( !(scaling_available_governors = xzalloc_array(char, gov_num * CPUFREQ_NAME_LEN)) ) return -ENOMEM; @@ -254,21 +266,10 @@ static int get_cpufreq_para(struct xen_sysctl_pm_op *op) if ( ret ) return ret; - op->u.get_para.cpuinfo_cur_freq = - cpufreq_driver.get ? cpufreq_driver.get(op->cpuid) : policy->cur; - op->u.get_para.cpuinfo_max_freq = policy->cpuinfo.max_freq; - op->u.get_para.cpuinfo_min_freq = policy->cpuinfo.min_freq; - op->u.get_para.u.s.scaling_cur_freq = policy->cur; op->u.get_para.u.s.scaling_max_freq = policy->max; op->u.get_para.u.s.scaling_min_freq = policy->min; - if ( cpufreq_driver.name[0] ) - strlcpy(op->u.get_para.scaling_driver, - cpufreq_driver.name, CPUFREQ_NAME_LEN); - else - strlcpy(op->u.get_para.scaling_driver, "Unknown", CPUFREQ_NAME_LEN); - if ( policy->governor->name[0] ) strlcpy(op->u.get_para.u.s.scaling_governor, policy->governor->name, CPUFREQ_NAME_LEN); @@ -291,7 +292,6 @@ static int get_cpufreq_para(struct xen_sysctl_pm_op *op) &op->u.get_para.u.s.u.ondemand.sampling_rate, &op->u.get_para.u.s.u.ondemand.up_threshold); } - op->u.get_para.turbo_enabled = cpufreq_get_turbo_status(op->cpuid); return ret; }