mirrors-yuzu-emu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn synced 2024-11-25 13:49:13 +00:00
Code Issues Projects Releases Packages Wiki Activity

target/sparc: remove MemoryRegionSection check code from sparc_cpu_get_phys_page_debug()

Browse source 
This code is preventing the MMU debug code from displaying virtual
mappings of IO devices (anything that is not located in the RAM).

Before this patch, Qemu would output 0xffffffffffffffff (-1) as the
physical address corresponding to an IO device virtual address.

With this patch the intended physical address is displayed.

Backports commit 7e450a8f50ac12fc8f69b6ce555254c84efcf407 from qemu
This commit is contained in:
Jean-Christophe Dubois 2018-03-06 08:42:03 -05:00 committed by Lioncash
parent 13e1357dbf
commit 0a43963f3b
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 0 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
qemu/target/sparc/mmu_helper.c
View file

@ -849,18 +849,12 @@ hwaddr sparc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
CPUSPARCState *env = &cpu->env;
hwaddr phys_addr;
int mmu_idx = cpu_mmu_index(env, false);
MemoryRegionSection section;
if (cpu_sparc_get_phys_page(env, &phys_addr, addr, 2, mmu_idx) != 0) {
if (cpu_sparc_get_phys_page(env, &phys_addr, addr, 0, mmu_idx) != 0) {
return -1;
}
}
section = memory_region_find(get_system_memory(cs->uc), phys_addr, 1);
memory_region_unref(section.mr);
if (!int128_nz(section.size)) {
return -1;
}
return phys_addr;
}
#endif