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Re: [Qemu-discuss] HDD emulation in QEMU
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From: |
Narcis Garcia |
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Subject: |
Re: [Qemu-discuss] HDD emulation in QEMU |
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Date: |
Thu, 29 Sep 2016 11:34:06 +0200 |
I'm very ignorant in the scope you are talking about, but I deduce:
-hda or -cdrom parameters I suppose are intended to be assumed by Qemu's
default BIOS.
I suppose your provided BIOS should find a PATA/SATA controller as a PCI
slot, and this PCI device is a component you should specify manually.
Please, someone amend me in this.
El 29/09/16 a les 01:48, Maksim Ratnikov ha escrit:
> Good day
>
> Our team research real BIOS actions during system boot. We use QEMU as a
> platform for our work. We set BIOS binary file as a QEMU bios and run
> emulator. After some work (we hope send our changes into upstream after
> work) we can see the BIOS logo, RAM test result and invitation to BIOS
> setup. And now we faced with a trouble: BIOS doesn't see a bootable drive.
>
> Of course we set drive in run script:
>
> ...
>
> -cdrom ./OS_IMG.iso \
>
> -hda ./qemu_vm.img
>
> ...
>
> .img image created by QEMU, and .iso image has been tested and can be
> used as bootable CD in VirtualBox and QEMU.
>
> We tried to switch HDD type in BIOS setupL ahci sata / native ide
> /legacy ide, but it had no effect.
>
> At each run BIOS show
>
> IDE drive 0 master not found
>
> IDE drive 0 slave not found
>
> .....
>
>
>
> We make additional log output for understand the situation.
>
> We sew multiple read and write requests in PCI AHCI areas (D31:F2 and
> D31:F5). Adresses during read: 0x92, 0xf, 0x0, 0x1, 0x43, 0x92
>
> BIOS try to write into this areas. It is like that:
>
>
>
> AHCI PCI config write: addr=0x90, val=0, len=1
>
> AHCI PCI config write: addr=0x94, val=0x800193, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x40, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x220000, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x78, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x220000, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x94, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x220022, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x88, len=1
>
> AHCI PCI config write: addr=0xa4, val=0, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x8c, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90900aa, len=4
>
> AHCI PCI config write: addr=0xa0, val=0xa8, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x9240082, len=4
>
> AHCI PCI config write: addr=0xa0, val=0xac, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x909008a, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x18, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x909001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x28, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x84, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0xa0, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0x92, val=0, len=2
>
> AHCI PCI config write: addr=0x92, val=0xf, len=2
>
> AHCI PCI config write: addr=0x92, val=0xf, len=1
>
> AHCI PCI config write: addr=0x90, val=0, len=1
>
> AHCI PCI config write: addr=0x41, val=0x80, len=1
>
> AHCI PCI config write: addr=0x43, val=0x80, len=1
>
> AHCI PCI config write: addr=0x9, val=0xf, len=1
>
> AHCI PCI config write: addr=0x2c, val=0xb0021458, len=4
>
> AHCI PCI config write: addr=0, val=0xffff, len=2
>
> AHCI PCI config write: addr=0xc, val=0x8008, len=2
>
> AHCI PCI config write: addr=0x4, val=0x7, len=1
>
> AHCI PCI config write: addr=0x20, val=0xf001, len=4
>
> AHCI PCI config write: addr=0x92, val=0xf0e, len=2
>
> AHCI PCI config write: addr=0x92, val=0xe0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0xf0d, len=2
>
> AHCI PCI config write: addr=0x92, val=0xd0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0xf0b, len=2
>
> AHCI PCI config write: addr=0x92, val=0xb0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0xf07, len=2
>
> AHCI PCI config write: addr=0x92, val=0x70f, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8f0f, len=2
>
> AHCI PCI config write: addr=0x44, val=0, len=1
>
> AHCI PCI config write: addr=0x44, val=0, len=1
>
> AHCI PCI config write: addr=0x55, val=0, len=1
>
> AHCI PCI config write: addr=0x54, val=0, len=1
>
> AHCI PCI config write: addr=0x44, val=0, len=1
>
> AHCI PCI config write: addr=0x44, val=0, len=1
>
> AHCI PCI config write: addr=0x55, val=0, len=1
>
> AHCI PCI config write: addr=0x54, val=0, len=1
>
> AHCI PCI config write: addr=0x30, val=0, len=4
>
> AHCI PCI config write: addr=0x4, val=0x7, len=2
>
> AHCI PCI config write: addr=0x30, val=0xf1000001, len=4
>
> AHCI PCI config write: addr=0x30, val=0, len=4
>
> AHCI PCI config write: addr=0x90, val=0, len=1
>
> AHCI PCI config write: addr=0x94, val=0x800193, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x40, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x922001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x78, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x922001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x94, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x9220022, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x88, len=1
>
> AHCI PCI config write: addr=0xa4, val=0, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x8c, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90900aa, len=4
>
> AHCI PCI config write: addr=0xa0, val=0xa8, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x9240082, len=4
>
> AHCI PCI config write: addr=0xa0, val=0xac, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x909008a, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x18, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x909001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x28, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0x84, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0xa0, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0xa0, val=0, len=1
>
> AHCI PCI config write: addr=0xa4, val=0x90d001b, len=4
>
> AHCI PCI config write: addr=0x92, val=0x8f0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8f0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0xf, len=1
>
> AHCI PCI config write: addr=0x90, val=0, len=1
>
> AHCI PCI config write: addr=0x41, val=0x80, len=1
>
> AHCI PCI config write: addr=0x43, val=0x80, len=1
>
> AHCI PCI config write: addr=0x2c, val=0xb0021458, len=4
>
> AHCI PCI config write: addr=0, val=0xffff, len=2
>
> AHCI PCI config write: addr=0xc, val=0x8008, len=2
>
> AHCI PCI config write: addr=0x4, val=0x7, len=1
>
> AHCI PCI config write: addr=0x20, val=0xf001, len=4
>
> AHCI PCI config write: addr=0x92, val=0x8f0e, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8e0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8f0d, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8d0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8f0b, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8b0f, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8f07, len=2
>
> AHCI PCI config write: addr=0x92, val=0x870f, len=2
>
> AHCI PCI config write: addr=0x92, val=0x8f0f, len=2
>
>
>
> Also BIOS try to use HDC IO ports:
>
> Write:
>
> AHCI: HDC 0 write addr 0x2 val 0xa size 1
>
> AHCI: HDC 0 write addr 0x2 val 0x5 size 1
>
> AHCI: HDC 0 write addr 0x4 val 0xaa size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr CTRL REG val 0xc size 1
>
> AHCI: HDC 0 write addr CTRL REG val 0x8 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x2 val 0xa size 1
>
> AHCI: HDC 0 write addr 0x2 val 0x5 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x4 val 0xaa size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr CTRL REG val 0xc size 1
>
> AHCI: HDC 0 write addr CTRL REG val 0x8 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xa0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
> AHCI: HDC 0 write addr 0x6 val 0xb0 size 1
>
>
>
> And multiple read with offset 1f7 (CONTROL/STATUS):
>
> AHCI: HDC 0 read addr 0x7 size 1 val = 0x40
>
> As you can see we add 1<<6 bit during our serch. We try set "Ready" bit,
> but it led to hang up.
>
>
>
> We noticed that it was not transmit any command to the hard disk (spin
> up, read data/ write data or anything else)
>
>
>
> Can anyone tell what is missing in QEMU to get started with hdd? Or:
> what is the bios sign of willingness to HDD?
>