acpidump: dump AMD IVRS table describing IOMMU layout

[kib]

Summary

Also:

acpidump: add printfield() helper

acpidump: bump WARNS to 6

and disable warnings about unused function args coming from the vendor
acpi headers.

acpidump: silent the warning about unaligned uuid

The field comes from the ACPI NFIT table and must be already properly
aligned by BIOS (at least so is written in the spec).

[markj]

Could you please share some sample output? My ryzen apparently does not have this table.

usr.sbin/acpi/acpidump/Makefile

5 ↗

(On Diff #136516)

I believe 6 is the default, so this line can simply be removed.

8 ↗

(On Diff #136516)

If it's just a problem in the contrib headers, perhaps use a pragma to suppress this warning just for the includes?

[kib]

/*
  IVRS: Length=382, Revision=2, Checksum=127,
	OEMID=SUPERM, OEM Table ID=AMD IVRS, OEM Revision=0x1,
	Creator ID=AMD, Creator Revision=0x0
	VAsize=64 PAsize=48 GVAsize=2
	ATS_resp_res=0 DMA_preboot_remap=0 EFRsup=1

	IVHD Type=0x10 IOMMUId=2
	Flags={Coherent,PPRSup}
	CapOffset=0x40 Base=0xeff00000 PCISeg=0 Unit=0 MSIlog=0
{HATS=0x2,GATS=0,MsuNumPPR=0,PNBanks=0x2,PNCounters=0x4,PASmax=0xf,GASup,UASup,GLXSup=0x1,NXSup}
		Dev Type=0x3 Id=0x0008-0xfffe
		Dev Type=0x43 Id=0xff00-0xffff AliasId=0x00a4
		Dev Type=0x48 Id=0x00a0 Handle=0 Variety=2(HPET)
		Dev Type=0x48 Id=0x00a0 Handle=0x80 Variety=1(IOAPIC) DTE={INITPass,EIntPass,NMIPass,SysMgtPass,Lint0Pass,Lint1Pass}
		Dev Type=0x48 Id=0x0001 Handle=0x81 Variety=1(IOAPIC)

	IVHD Type=0x11 IOMMUId=2
	Flags={Coherent,PPRSup}
	CapOffset=0x40 Base=0xeff00000 PCISeg=0 Unit=0 MSIlog=0
	Attr={MsiNumPPR=0,PNBanks=0x2,PNCounters=0}
	EFRreg=0x000f77ef22294ada
		Dev Type=0x3 Id=0x0008-0xfffe
		Dev Type=0x43 Id=0xff00-0xffff AliasId=0x00a4
		Dev Type=0x48 Id=0x00a0 Handle=0 Variety=2(HPET)
		Dev Type=0x48 Id=0x00a0 Handle=0x80 Variety=1(IOAPIC) DTE={INITPass,EIntPass,NMIPass,SysMgtPass,Lint0Pass,Lint1Pass}
		Dev Type=0x48 Id=0x0001 Handle=0x81 Variety=1(IOAPIC)
	Mem Type=0x20(ALL) Start=    0xfffd00000000 Length=0x300000000 Flags={ExclusionRange}

	IVHD Type=0x40 IOMMUId=2
	Flags={Coherent,PPRSup}
	CapOffset=0x40 Base=0xeff00000 PCISeg=0 Unit=0 MSIlog=0
	Attr={MsiNumPPR=0,PNBanks=0x2,PNCounters=0}
	EFRreg=0x000f77ef22294ada EFR2reg=000000000000000000
		Dev Type=0x3 Id=0x0008-0xfffe
		Dev Type=0x43 Id=0xff00-0xffff AliasId=0x00a4
		Dev Type=0x48 Id=0x00a0 Handle=0 Variety=2(HPET)
		Dev Type=0x48 Id=0x00a0 Handle=0x80 Variety=1(IOAPIC) DTE={INITPass,EIntPass,NMIPass,SysMgtPass,Lint0Pass,Lint1Pass}
		Dev Type=0x48 Id=0x0001 Handle=0x81 Variety=1(IOAPIC)
		Dev Type=0xf0 Id=0x0099 HID=PNPD0040 CID= UID=none DTE={INITPass,EIntPass,NMIPass,SysMgtPass,Lint0Pass,Lint1Pass}

	Type=80
	Length=32
 */

[kib]

Markj' changes

[markj]

Seems reasonable to me. I didn't check the ACPI table definitions closely.