----- 原始邮件 ----- 发件人：<[email protected]> 收件人："Kevin O'Connor" <[email protected]> 主题：回复：Re: [SeaBIOS] about ZoneHigh occupying ram from last address of below 4G ram 日期：2015年04月15日 21点15分 ----- 原始邮件 ----- 发件人：Kevin O'Connor <[email protected]> 收件人：[email protected] 抄送人：seabios <[email protected]> 主题：Re: [SeaBIOS] about ZoneHigh occupying ram from last address of below 4G ram 日期：2015年04月15日 00点45分 On Tue, Apr 14, 2015 at 11:57:08PM +0800, [email protected] wrote: > I'm using seabios 1.7.5-0 for kvm ,and I find some problem when > using windows 7 64bit bandvirtual machine.If I configure the windows > 7 64bit vm memory to 8GB ,the vm can't boot up very often(some > win7-64bit version easy to trigger) .I use trace-cmd tool to trace > it ,the vm just scan from last ram of below 4G(0xc000_0000) to 4G > address byte by byte.This is very time-consuming.From E820 table,the > address range contain nothing(it is an address hole). > > I query clue from seabios because I can't find any problems in kvm > or qemu. seabios keep a range of ram from last address below 4G as > zonehigh ram .I guess the windows os see a not aligned ram address > space and scan from 0xc000_0000. so I try to change the ZoneHigh to > low address space (I choose 128MB,grub use from 1MB address > space).after I changed,I can boot win7-64bit vm normally. > > So I want to know whether changing ZoneHigh to 128MB can be a > general modification. I haven't seen any other reports of issues like this with Win7. I suspect something else is going on. Please provide the full debug log (as described at: http://seabios.org/Debugging ) with an unmodified seabios from both a succesful boot event and a failed boot event. -Kevin I just can' boot succesfully if I use unmodified seabios (vm using 8 GB memory).I will try again. The attachment is the output of seabios when booting failed.
SeaBIOS (version rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org) No Xen hypervisor found. Running on QEMU (i440fx) Running on KVM RamSize: 0xc0000000 [cmos] Relocating init from 0x000dfbd9 to 0xbffaeb00 (size 70708) Found QEMU fw_cfg RamBlock: addr 0x0000000000000000 len 0x00000000c0000000 [e820] RamBlock: addr 0x0000000100000000 len 0x0000000140000000 [e820] Moving pm_base to 0x600 CPU Mhz=2139 === PCI bus & bridge init === PCI: pci_bios_init_bus_rec bus = 0x0 === PCI device probing === Found 8 PCI devices (max PCI bus is 00) === PCI new allocation pass #1 === PCI: check devices === PCI new allocation pass #2 === PCI: IO: c000 - c0af PCI: 32: 00000000c0000000 - 00000000fec00000 PCI: map device bdf=00:03.0 bar 1, addr 0000c000, size 00000040 [io] PCI: map device bdf=00:04.0 bar 0, addr 0000c040, size 00000040 [io] PCI: map device bdf=00:01.2 bar 4, addr 0000c080, size 00000020 [io] PCI: map device bdf=00:01.1 bar 4, addr 0000c0a0, size 00000010 [io] PCI: map device bdf=00:03.0 bar 6, addr feb80000, size 00040000 [mem] PCI: map device bdf=00:03.0 bar 0, addr febc0000, size 00020000 [mem] PCI: map device bdf=00:02.0 bar 6, addr febe0000, size 00010000 [mem] PCI: map device bdf=00:02.0 bar 1, addr febf0000, size 00001000 [mem] PCI: map device bdf=00:04.0 bar 1, addr febf1000, size 00001000 [mem] PCI: map device bdf=00:02.0 bar 0, addr fc000000, size 02000000 [prefmem] PCI: init bdf=00:00.0 id=8086:1237 PCI: init bdf=00:01.0 id=8086:7000 PIIX3/PIIX4 init: elcr=00 0c PCI: init bdf=00:01.1 id=8086:7010 PCI: init bdf=00:01.2 id=8086:7020 PCI: init bdf=00:01.3 id=8086:7113 Using pmtimer, ioport 0x608 PCI: init bdf=00:02.0 id=1013:00b8 PCI: init bdf=00:03.0 id=8086:100e PCI: init bdf=00:04.0 id=1af4:1001 PCI: Using 00:02.0 for primary VGA Found 2 cpu(s) max supported 2 cpu(s) Copying PIR from 0xbffbfca3 to 0x000f0f90 Copying MPTABLE from 0x00006db0/bffa5b20 to 0x000f0e80 Copying SMBIOS entry point from 0x00006db0 to 0x000f0c50 Scan for VGA option rom Running option rom at c000:0003 Start SeaVGABIOS (version rel-1.7.5-0-ge51488c-20140602_164645-nilsson.home.kraxel.org) enter vga_post: a=00000010 b=0000ffff c=00000000 d=0000ffff ds=0000 es=f000 ss=0000 si=00000000 di=00006ae0 bp=00000000 sp=00006d16 cs=f000 ip=d2ea f=0000 cirrus init cirrus init 2 Attempting to allocate VGA stack via pmm call to f000:d362 pmm call arg1=0 VGA stack allocated at ef590 Turning on vga text mode console set VGA mode 3 cirrus mode switch regular SeaBIOS (version rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org) UHCI init on dev 00:01.2 (io=c080) Found 1 lpt ports Found 1 serial ports Searching bootorder for: /pci@i0cf8/isa@1/fdc@03f0/floppy@0 ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9) ATA controller 2 at 170/374/0 (irq 15 dev 9) found virtio-blk at 0:4 Searching bootorder for: /pci@i0cf8/*@4 ps2_read_data count==0 KBD: kbd: read data=0xaa,ps2_cmd 0 DVD/CD [ata1-0: QEMU DVD-ROM ATAPI-4 DVD/CD] Searching bootorder for: /pci@i0cf8/*@1,1/drive@1/disk@0 PS2 keyboard initialized All threads complete. Scan for option roms Running option rom at c980:0003 pmm call arg1=1 pmm call arg1=0 pmm call arg1=1 pmm call arg1=0 Searching bootorder for: /pci@i0cf8/*@3 Searching bootorder for: /rom@genroms/kvmvapic.bin Searching bootorder for: HALT drive 0x000f0ba0: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=31457280 Running option rom at ca80:0003 Space available for UMB: cd000-ed000, f0000-f0b40 Returned 131072 bytes of ZoneHigh e820 map has 8 items: 0: 0000000000000000 - 000000000009fc00 = 1 RAM 1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED 2: 00000000000f0000 - 0000000000100000 = 2 RESERVED 3: 0000000000100000 - 00000000bffe0000 = 1 RAM 4: 00000000bffe0000 - 00000000c0000000 = 2 RESERVED 5: 00000000feffc000 - 00000000ff000000 = 2 RESERVED 6: 00000000fffc0000 - 0000000100000000 = 2 RESERVED 7: 0000000100000000 - 0000000240000000 = 1 RAM enter handle_19: NULL Booting from Hard Disk... Booting from 0000:7c00 set VGA mode 3 cirrus mode switch regular set VGA mode 3 cirrus mode switch regular set VGA mode 3 cirrus mode switch regular VBE current mode=3 VBE mode info request: 3 VBE mode info request: 3 VBE mode info request: 101 VBE mode info request: 111 VBE mode info request: 110 VBE mode info request: 112 VBE mode info request: 103 VBE mode info request: 114 VBE mode info request: 113 VBE mode info request: 105 VBE mode info request: 117 VBE mode info request: 116 VBE mode info request: 115 VBE mode info request: 118 VBE mode set: 4118 set VGA mode 118 VBE mode info request: 118 VBE current mode=4118 VBE current mode=4118 VBE mode info request: 118 VBE mode info request: 118 VBE mode info request: 118
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