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hw/hppa: forward requests to CPU HPA 

HP-UX 10.20 uses busmaster writes to the CPU EIR to signal
interrupts from the SCSI constroller. (Similar to what is known
as MSI on x86)

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190211192039.5457-1-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Sven Schnelle 2019-02-11 20:20:39 +01:00 committed by Richard Henderson
parent 60e29463bb
commit cb82c5728c
1 changed files with 7 additions and 1 deletions
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8
hw/hppa/dino.c
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@ -105,6 +105,7 @@ typedef struct DinoState {
MemoryRegion bm;
MemoryRegion bm_ram_alias;
MemoryRegion bm_pci_alias;
MemoryRegion bm_cpu_alias;
MemoryRegion cpu0_eir_mem;
} DinoState;
@ -473,12 +474,17 @@ PCIBus *dino_init(MemoryRegion *addr_space,
memory_region_init_alias(&s->bm_pci_alias, OBJECT(s),
"bm-pci", &s->pci_mem,
0xf0000000 + DINO_MEM_CHUNK_SIZE,
31 * DINO_MEM_CHUNK_SIZE);
30 * DINO_MEM_CHUNK_SIZE);
memory_region_init_alias(&s->bm_cpu_alias, OBJECT(s),
"bm-cpu", addr_space, 0xfff00000,
0xfffff);
memory_region_add_subregion(&s->bm, 0,
&s->bm_ram_alias);
memory_region_add_subregion(&s->bm,
0xf0000000 + DINO_MEM_CHUNK_SIZE,
&s->bm_pci_alias);
memory_region_add_subregion(&s->bm, 0xfff00000,
&s->bm_cpu_alias);
address_space_init(&s->bm_as, &s->bm, "pci-bm");
pci_setup_iommu(b, dino_pcihost_set_iommu, s);