Xen project Mailing List

RE: [Xen-devel] How to use deeper C state

To: "Wei, Gang" <gang.wei@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>

From: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>

Date: Wed, 21 Jan 2009 18:35:13 +0900

Cc: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>, "Yu, Ke" <ke.yu@xxxxxxxxx>

Delivery-date: Wed, 21 Jan 2009 01:35:43 -0800

List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi, >The max_cstate just means if there are c-state deep to C7, those deep C >states can be entered. But from below debug out, I found the deepest C state >supported is C1 in you machine because all supported C states will be printed >out. > >You machine may not support deep C states, or dom0 failed to detected it from >BIOS. Can you provide the whole 'xm dmesg' result right after booting up? > Thank you for your reply. The xm dmesg is below. Best Regards, Akio Takebe # xm dmesg __ __ _____ _ _ _ _ _ \ \/ /___ _ __ |___ /| || | _ _ _ __ ___| |_ __ _| |__ | | ___ \ // _ \ '_ \ |_ \| || |_ __| | | | '_ \/ __| __/ _` | '_ \| |/ _ \ / \ __/ | | | ___) |__ _|__| |_| | | | \__ \ || (_| | |_) | | __/ /_/\_\___|_| |_| |____(_) |_| \__,_|_| |_|___/\__\__,_|_.__/|_|\___| (XEN) Xen version 3.4-unstable (root@(none)) (gcc version 4.1.2 20071124 (Red Hat 4.1.2-42)) Wed Jan 21 17:15:00 JST 2009 (XEN) Latest ChangeSet: Tue Jan 20 16:41:29 2009 +0000 19063:a0dddcbd9e32 (XEN) Command line: loglvl=all guest_loglvl=all com1=115200,8n1 console=vga,com1 cpuidle=1 (XEN) Video information: (XEN) VGA is text mode 80x25, font 8x16 (XEN) VBE/DDC methods: V2; EDID transfer time: 1 seconds (XEN) Disc information: (XEN) Found 2 MBR signatures (XEN) Found 2 EDD information structures (XEN) Xen-e820 RAM map: (XEN) 0000000000000000 - 000000000009ec00 (usable) (XEN) 000000000009ec00 - 00000000000a0000 (reserved) (XEN) 00000000000f0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 000000007d490000 (usable) (XEN) 000000007d490000 - 000000007d4e3000 (ACPI NVS) (XEN) 000000007d4e3000 - 000000007d4f0000 (ACPI data) (XEN) 000000007d4f0000 - 000000007d500000 (reserved) (XEN) 00000000e0000000 - 00000000f0000000 (reserved) (XEN) 00000000fec00000 - 0000000100000000 (reserved) (XEN) System RAM: 2004MB (2052280kB) (XEN) ACPI: RSDP 000F89A0, 0024 (r2 FUJ ) (XEN) ACPI: XSDT 7D4E3080, 006C (r1 FUJ PC 30303231 AWRD 0) (XEN) ACPI: FACP 7D4E8000, 00F4 (r3 FUJ PC 30303231 AWRD 0) (XEN) ACPI: DSDT 7D4E3200, 4DC1 (r1 FUJ AWRDACPI 201 MSFT 3000000) (XEN) ACPI: FACS 7D490000, 0040 (XEN) ACPI: SLIC 7D4E8200, 0176 (r1 FUJ PC 30303231 AWRD 1010101) (XEN) ACPI: ASF! 7D4E8400, 008A (r16 FUJ PC 30303231 AWRD 0) (XEN) ACPI: HPET 7D4E8380, 0038 (r1 FUJ PC 30303231 AWRD 98) (XEN) ACPI: MCFG 7D4E83C0, 003C (r1 FUJ PC 30303231 AWRD 0) (XEN) ACPI: APIC 7D4E8100, 0084 (r1 FUJ PC 30303231 AWRD 0) (XEN) ACPI: SSDT 7D4E8B20, 07EF (r1 PmRef CpuPm 3000 INTL 20061109) (XEN) ACPI: BOOT 7D4E9340, 0028 (r1 FUJ PC 30303231 AWRD 0) (XEN) ACPI: DMAR 7D4E9380, 0110 (r1 IntelR AWRDACPI 322E3030 DRWA 2) (XEN) NUMA turned off (XEN) Faking a node at 0000000000000000-000000007d490000 (XEN) Domain heap initialised (XEN) found SMP MP-table at 000f42e0 (XEN) DMI 2.5 present. (XEN) Using APIC driver default (XEN) ACPI: PM-Timer IO Port: 0x408 (XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[404,0], pm1x_evt[400,0] (XEN) ACPI: wakeup_vec[7d49000c], vec_size[20] (XEN) ACPI: Local APIC address 0xfee00000 (XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) (XEN) Processor #0 6:15 APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) (XEN) Processor #1 6:15 APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled) (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled) (XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1]) (XEN) ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0]) (XEN) IOAPIC[0]: apic_id 4, version 32, address 0xfec00000, GSI 0-23 (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) (XEN) ACPI: IRQ0 used by override. (XEN) ACPI: IRQ2 used by override. (XEN) ACPI: IRQ9 used by override. (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs (XEN) ACPI: HPET id: 0x8086a201 base: 0xfed00000 (XEN) Using ACPI (MADT) for SMP configuration information (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Initializing CPU#0 (XEN) Detected 2992.902 MHz processor. (XEN) CPU: L1 I cache: 32K, L1 D cache: 32K (XEN) CPU: L2 cache: 4096K (XEN) CPU: Physical Processor ID: 0 (XEN) CPU: Processor Core ID: 0 (XEN) VMX: Supported advanced features: (XEN) - APIC MMIO access virtualisation (XEN) - APIC TPR shadow (XEN) - Virtual NMI (XEN) - MSR direct-access bitmap (XEN) HVM: VMX enabled (XEN) MCE: Intel newly family MC Init (XEN) Intel machine check reporting enabled on CPU#0. (XEN) CPU0: Thermal monitoring enabled (TM2) (XEN) CMCI: CPU0 has no CMCI support (XEN) CPU0: Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz stepping 0b (XEN) Booting processor 1/1 eip 8c000 (XEN) Initializing CPU#1 (XEN) CPU: L1 I cache: 32K, L1 D cache: 32K (XEN) CPU: L2 cache: 4096K (XEN) CPU: Physical Processor ID: 0 (XEN) CPU: Processor Core ID: 1 (XEN) MCE: Intel newly family MC Init (XEN) Intel machine check reporting enabled on CPU#1. (XEN) CPU1: Thermal monitoring enabled (TM2) (XEN) CMCI: CPU1 has no CMCI support (XEN) CPU1: Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz stepping 0b (XEN) Total of 2 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) -> Using new ACK method (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1 (XEN) checking TSC synchronization across 2 CPUs: passed. (XEN) Platform timer is 14.318MHz HPET (XEN) Brought up 2 CPUs (XEN) I/O virtualisation disabled (XEN) ACPI sleep modes: S3 (XEN) mcheck_poll: Init_mcheck_timer (XEN) mcheck_poll: Machine check polling timer started. (XEN) *** LOADING DOMAIN 0 *** (XEN) Xen kernel: 64-bit, lsb, compat32 (XEN) Dom0 kernel: 64-bit, lsb, paddr 0xffffffff80200000 -> 0xffffffff805c190c (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Dom0 alloc.: 0000000079000000->000000007a000000 (470209 pages to be allocated) (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: ffffffff80200000->ffffffff805c190c (XEN) Init. ramdisk: ffffffff805c2000->ffffffff80b73000 (XEN) Phys-Mach map: ffffffff80b73000->ffffffff80f11608 (XEN) Start info: ffffffff80f12000->ffffffff80f124b4 (XEN) Page tables: ffffffff80f13000->ffffffff80f1e000 (XEN) Boot stack: ffffffff80f1e000->ffffffff80f1f000 (XEN) TOTAL: ffffffff80000000->ffffffff81000000 (XEN) ENTRY ADDRESS: ffffffff80200000 (XEN) Dom0 has maximum 2 VCPUs (XEN) Scrubbing Free RAM: .done. (XEN) Xen trace buffers: disabled (XEN) Std. Loglevel: All (XEN) Guest Loglevel: All (XEN) Xen is relinquishing VGA console. (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen) (XEN) Freed 108kB init memory. (XEN) io_apic.c:2211: (XEN) ioapic_guest_write: apic=0, pin=4, old_irq=4, new_irq=4 (XEN) ioapic_guest_write: old_entry=000009f1, new_entry=000109f1 (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ! (XEN) PCI add device 00:00.0 (XEN) PCI add device 00:01.0 (XEN) PCI add device 00:02.0 (XEN) PCI add device 00:03.0 (XEN) PCI add device 00:03.2 (XEN) PCI add device 00:03.3 (XEN) PCI add device 00:19.0 (XEN) PCI add device 00:1a.0 (XEN) PCI add device 00:1a.1 (XEN) PCI add device 00:1a.2 (XEN) PCI add device 00:1a.7 (XEN) PCI add device 00:1b.0 (XEN) PCI add device 00:1c.0 (XEN) PCI add device 00:1c.4 (XEN) PCI add device 00:1d.0 (XEN) PCI add device 00:1d.1 (XEN) PCI add device 00:1d.2 (XEN) PCI add device 00:1d.7 (XEN) PCI add device 00:1e.0 (XEN) PCI add device 00:1f.0 (XEN) PCI add device 00:1f.2 (XEN) PCI add device 00:1f.3 (XEN) PCI add device 01:00.0 (XEN) PCI add device 01:00.1 (XEN) PCI add device 03:00.0 (XEN) PCI add device 00:03.2 (XEN) PCI add device 03:00.0 (XEN) PCI add device 00:1a.7 (XEN) PCI add device 00:1d.7 (XEN) PCI add device 00:1a.0 (XEN) PCI add device 00:1a.1 (XEN) PCI add device 00:1a.2 (XEN) PCI add device 00:1d.0 (XEN) PCI add device 00:1d.1 (XEN) PCI add device 00:1d.2 (XEN) PCI add device 00:1f.2 (XEN) PCI add device 00:1f.3 (XEN) PCI add device 00:19.0 (XEN) PCI add device 01:00.0 (XEN) PCI add device 00:1b.0 (XEN) PCI add device 01:00.1 (XEN) Set CPU acpi_id(0) cpuid(0) Px State info: (XEN) _PPC: 0 (XEN) cpu0 cx acpi info: (XEN) count = 1 (XEN) flags: bm_cntl[0], bm_chk[0], has_cst[0], (XEN) pwr_setup_done[1], bm_rld_set[0] (XEN) states[0]: (XEN) reg.space_id = 0x0 (XEN) reg.bit_width = 0x0 (XEN) reg.bit_offset = 0x0 (XEN) reg.access_size = 0x0 (XEN) reg.address = 0x0 (XEN) type = 1 (XEN) latency = 0 (XEN) power = 0 (XEN) dp(@0x0000000000000000) (XEN) ==cpu0== (XEN) active state: C-1 (XEN) max_cstate: C7 (XEN) states: (XEN) C1: type[C1] latency[000] usage[00000000] duration[0] (XEN) C0: usage[00000000] duration[41067564046] (XEN) Set CPU acpi_id(0) cpuid(0) Px State info: (XEN) _PCT: descriptor=130, length=12, space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0 (XEN) _PCT: descriptor=130, length=12, space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0 (XEN) _PSS: state_count=2 (XEN) State0: 2997MHz 88000mW 10us 10us 0x92a 0x92a (XEN) State1: 1998MHz 54000mW 10us 10us 0x61b 0x61b (XEN) _PSD: num_entries=5 rev=0 domain=0 coord_type=252 num_processors=1 (XEN) _PPC: 0 (XEN) xen_pminfo: @acpi_cpufreq_cpu_init,HARDWARE addr space (XEN) CPU 0 initialization completed (XEN) Set CPU acpi_id(1) cpuid(1) Px State info: (XEN) _PPC: 0 (XEN) cpu1 cx acpi info: (XEN) count = 1 (XEN) flags: bm_cntl[0], bm_chk[0], has_cst[0], (XEN) pwr_setup_done[1], bm_rld_set[0] (XEN) states[0]: (XEN) reg.space_id = 0x0 (XEN) reg.bit_width = 0x0 (XEN) reg.bit_offset = 0x0 (XEN) reg.access_size = 0x0 (XEN) reg.address = 0x0 (XEN) type = 1 (XEN) latency = 0 (XEN) power = 0 (XEN) dp(@0x0000000000000000) (XEN) ==cpu1== (XEN) active state: C-1 (XEN) max_cstate: C7 (XEN) states: (XEN) C1: type[C1] latency[000] usage[00000000] duration[0] (XEN) C0: usage[00000000] duration[41068216773] (XEN) Set CPU acpi_id(1) cpuid(1) Px State info: (XEN) _PCT: descriptor=130, length=12, space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0 (XEN) _PCT: descriptor=130, length=12, space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0 (XEN) _PSS: state_count=2 (XEN) State0: 2997MHz 88000mW 10us 10us 0x92a 0x92a (XEN) State1: 1998MHz 54000mW 10us 10us 0x61b 0x61b (XEN) _PSD: num_entries=5 rev=0 domain=1 coord_type=252 num_processors=1 (XEN) _PPC: 0 (XEN) xen_pminfo: @acpi_cpufreq_cpu_init,HARDWARE addr space (XEN) CPU 1 initialization completed (XEN) cpu2 cx acpi info: (XEN) count = 1 (XEN) flags: bm_cntl[0], bm_chk[0], has_cst[0], (XEN) pwr_setup_done[1], bm_rld_set[0] (XEN) states[0]: (XEN) reg.space_id = 0x0 (XEN) reg.bit_width = 0x0 (XEN) reg.bit_offset = 0x0 (XEN) reg.access_size = 0x0 (XEN) reg.address = 0x0 (XEN) type = 1 (XEN) latency = 0 (XEN) power = 0 (XEN) dp(@0x0000000000000000) (XEN) no cpu_id for acpi_id 2 (XEN) cpu3 cx acpi info: (XEN) count = 1 (XEN) flags: bm_cntl[0], bm_chk[0], has_cst[0], (XEN) pwr_setup_done[1], bm_rld_set[0] (XEN) states[0]: (XEN) reg.space_id = 0x0 (XEN) reg.bit_width = 0x0 (XEN) reg.bit_offset = 0x0 (XEN) reg.access_size = 0x0 (XEN) reg.address = 0x0 (XEN) type = 1 (XEN) latency = 0 (XEN) power = 0 (XEN) dp(@0x0000000000000000) (XEN) no cpu_id for acpi_id 3 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel

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