diff options
| author | Damien Zammit <damien@zamaudio.com> | 2022-08-23 03:26:49 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-08-23 12:40:39 +0200 |
| commit | f2626beb39dc416ceebfa35076d89cd291e2b903 (patch) | |
| tree | 721d6a3e32aef1a2cf64d3c2129bc06570045417 /i386 | |
| parent | a14feb6ffadd6902ba09f23122beda08beb970ad (diff) | |
| download | gnumach-f2626beb39dc416ceebfa35076d89cd291e2b903.tar.gz gnumach-f2626beb39dc416ceebfa35076d89cd291e2b903.tar.bz2 gnumach-f2626beb39dc416ceebfa35076d89cd291e2b903.zip | |
gnumach: Remove PCI_CFG2_* as a reserved ioport range
PCI CONF2 access method was deprecated in PCI v2.0
Also, the conf2 ioport range is only activated for use
as pci configuration space when conf1 registers are accessed
in a particular sequence.
Since the pci-arbiter does not access the conf1 forwarding register,
we are safe to remove this completely from gnumach to allow
normal I/O use of the conf2 range as modern hardware expects.
Message-Id: <20220823032638.292813-1-damien@zamaudio.com>
Diffstat (limited to 'i386')
| -rw-r--r-- | i386/i386/io_perm.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/i386/i386/io_perm.c b/i386/i386/io_perm.c index c966102c..6db60f73 100644 --- a/i386/i386/io_perm.c +++ b/i386/i386/io_perm.c @@ -70,12 +70,9 @@ #define PCI_CFG1_START 0xcf8 #define PCI_CFG1_END 0xcff -#define PCI_CFG2_START 0xc000 -#define PCI_CFG2_END 0xcfff #define CONTAINS_PCI_CFG(from, to) \ - ( ( ( from <= PCI_CFG1_END ) && ( to >= PCI_CFG1_START ) ) || \ - ( ( from <= PCI_CFG2_END ) && ( to >= PCI_CFG2_START ) ) ) + ( ( from <= PCI_CFG1_END ) && ( to >= PCI_CFG1_START ) ) /* Our device emulation ops. See below, at the bottom of this file. */ |