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hw/pci-host/astro: Add LMMIO range support

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Each Astro on 64-bit machines supports up to four LMMIO regions.
Those regions are used by graphic cards and other PCI devices which
need to map huge memory areas. The LMMIO regions are configured and
set up by SeaBIOS-hppa and then used as-is by the operating systems
(Linux, HP-UX).

With this addition it's now possible to add other PCI graphic
cards on the command line, e.g. with "-device ati-vga".

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller 2025-02-04 21:10:08 +01:00
parent b6247273fb
commit 5bef80106f
2 changed files with 55 additions and 3 deletions
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6
include/hw/pci-host/astro.h
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@ -24,6 +24,8 @@ OBJECT_DECLARE_SIMPLE_TYPE(ElroyState, ELROY_PCI_HOST_BRIDGE)
#define LMMIO_DIST_BASE_ADDR 0xf4000000ULL
#define LMMIO_DIST_BASE_SIZE 0x4000000ULL
#define LMMIO_DIRECT_RANGES 4
#define IOS_DIST_BASE_ADDR 0xfffee00000ULL
#define IOS_DIST_BASE_SIZE 0x10000ULL
@ -83,9 +85,7 @@ struct AstroState {
struct ElroyState *elroy[ELROY_NUM];
MemoryRegion this_mem;
MemoryRegion pci_mmio;
MemoryRegion pci_io;
MemoryRegion lmmio_direct[LMMIO_DIRECT_RANGES];
IOMMUMemoryRegion iommu;
AddressSpace iommu_as;