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 a IO device virtual address.
With this patch the intended physical adresse is displayed.
Signed-off-by: Jean-Christophe Dubois <j...@tribudubois.net>
---
target/sparc/mmu_helper.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/target/sparc/mmu_helper.c b/target/sparc/mmu_helper.c
index d5b6c1e48c..f2d2250e7a 100644
--- a/target/sparc/mmu_helper.c
+++ b/target/sparc/mmu_helper.c
@@ -857,18 +857,12 @@ 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(), phys_addr, 1);
- memory_region_unref(section.mr);
- if (!int128_nz(section.size)) {
- return -1;
- }
return phys_addr;
}
#endif
--
2.14.1
