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[FREELDR] Update ACPI Extended Attributes support to 6.3 (#1782)

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Update BIOS_MEMORY_MAP and PcMemGetBiosMemoryMap() from ACPI 6.2-A to ACPI 6.3.

Co-Authored-By: Hermès Bélusca-Maïto <hermes.belusca-maito@reactos.org>
This commit is contained in:
Serge Gautherie 2019-08-02 17:39:50 +02:00 committed by Hermès Bélusca-Maïto
parent 60fbf459c3
commit fa2e4e9537
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GPG key ID: 3B2539C65E7B93D0
2 changed files with 20 additions and 9 deletions
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11
boot/freeldr/freeldr/arch/i386/pcmem.c
View file

@ -302,7 +302,7 @@ PcMemGetBiosMemoryMap(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG MaxMemoryMapSi
if (Regs.x.ecx == 0)
{
TRACE("Discard empty entry. (would-be-PcBiosMapCount = %lu)\n",
TRACE("Discarding empty entry. (would-be-PcBiosMapCount = %lu)\n",
PcBiosMapCount);
goto nextRange;
}
@ -332,7 +332,7 @@ PcMemGetBiosMemoryMap(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG MaxMemoryMapSi
if (((PBIOS_MEMORY_MAP)BIOSCALLBUFFER)->ExtendedAttributes.Enabled_Reserved == 0)
{
WARN("Discard disabled/invalid entry. (would-be-PcBiosMapCount = %lu)\n",
WARN("Discarding disabled/invalid entry. (would-be-PcBiosMapCount = %lu)\n",
PcBiosMapCount);
/* This unlikely case was correct between ACPI 3.0 and 4.0, so assume all is fine.
* Unless we would be ready to drop ACPI 3.0 compatibility.
@ -340,6 +340,11 @@ PcMemGetBiosMemoryMap(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG MaxMemoryMapSi
goto nextRange;
}
/*
* Other deprecated ExtendedAttributes flags such as NonVolatile_Deprecated_Reserved
* or SlowAccess_Deprecated_Reserved are simply ignored.
*/
/* Copy data to global buffer */
RtlCopyMemory(&PcBiosMemoryMap[PcBiosMapCount], (PVOID)BIOSCALLBUFFER, sizeof(BIOS_MEMORY_MAP));
@ -362,7 +367,7 @@ PcMemGetBiosMemoryMap(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG MaxMemoryMapSi
if (PcBiosMemoryMap[PcBiosMapCount].Length == 0)
{
TRACE("Discard empty range. (would-be-PcBiosMapCount = %lu, BaseAddress = 0x%llx, Length = 0)\n",
TRACE("Discarding empty range. (would-be-PcBiosMapCount = %lu, BaseAddress = 0x%llx, Length = 0)\n",
PcBiosMapCount, PcBiosMemoryMap[PcBiosMapCount].BaseAddress);
goto nextRange;
}

18
boot/freeldr/freeldr/include/arch/pc/pcbios.h
View file

@ -46,13 +46,19 @@ typedef struct
struct
{
// Bit 0. ACPI 3.0. As of ACPI 4.0, became "Reserved -> must be 1".
// Bit 0. ACPI 3.0.
// As of ACPI 4.0, became "Reserved -> must be 1".
ULONG Enabled_Reserved : 1;
// Bit 1. ACPI 3.0. As of ACPI 6.1, became "Unimplemented -> Deprecated".
ULONG NonVolatile_Deprecated : 1;
// Bit 2. ACPI 4.0. As of ACPI 6.1, became "Unimplemented -> Deprecated".
ULONG SlowAccess_Deprecated : 1;
// Bit 3. ACPI 4.0. ACPI 5.0-A added "Used only on PC-AT BIOS" (not UEFI).
// Bit 1. ACPI 3.0.
// As of ACPI 6.1, became "Unimplemented -> Deprecated".
// As of ACPI 6.3, became "Reserved -> must be 0".
ULONG NonVolatile_Deprecated_Reserved : 1;
// Bit 2. ACPI 4.0.
// As of ACPI 6.1, became "Unimplemented -> Deprecated".
// As of ACPI 6.3, became "Reserved -> must be 0".
ULONG SlowAccess_Deprecated_Reserved : 1;
// Bit 3. ACPI 4.0.
// ACPI 5.0-A added "Used only on PC-AT BIOS" (not UEFI).
ULONG ErrorLog : 1;
// Bits 4-31. ACPI 3.0.
ULONG Reserved : 28;